JP3386949B2 - Modular 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 modular jack mainly for communication and to which a plurality of twisted pair wires are connected.

[0002]

2. Description of the Related Art Modular jacks have been used to connect communication cables to each other or to other devices. In particular, in constructing a LAN (local area network) system using Ethernet, a twisted pair cable in which a twisted pair wire of 4 to 8 cores is housed in a sheath is widely used for relatively short distance communication (10BASE- T etc.). This type of cable has the advantage that it is relatively inexpensive and that the cable is thin and easy to wire.

By the way, the modular jack has a housing having a plug insertion port into which a modular plug is detachably inserted, and a contact of a modular plug inserted into the housing can be contacted in the housing through the plug insertion port. The contacts are arranged. In addition, the housing is provided with a terminal portion for connecting to an electric wire such as the above twisted pair wire, and the contact and the terminal portion are electrically connected. The terminal part is formed in the shape of a fork with a pressure contact slit between a pair of teeth, and by inserting the wire into the pressure contact slit, a pressure contact type terminal piece that sandwiches the core wire while stripping the insulation coating of the wire is easy to connect. It is often used from.

[0004]

By the way, in the modular jack provided with the pressure contact type terminal piece as described above, when the wire is press-fitted into the pressure contact slit of the terminal piece, the insulation of the wire is secured at both side edges of the pressure contact slit of the terminal piece. Since the core wire is sandwiched while stripping the coating, a required force is required to press-fit the electric wire into the terminal piece. Therefore, under the present circumstances, a dedicated cap-shaped jig that covers the terminal piece is used, and a general-purpose tool such as pliers is used to push the jig toward the terminal piece side to push the wire into the crimping slit of the terminal piece. I am trying. That is, a dedicated jig and a tool such as pliers are required to connect the electric wire to the terminal piece. In addition, as described above, when connecting a 4-to-8-core electric wire, it is troublesome to connect the electric wires one by one. Therefore, it is better to connect a plurality of electric wires together. If an attempt is made to perform the work, it is necessary to hold the electric wires in a state where a plurality of electric wires are aligned in the arrangement order of the terminal pieces, and as a result, the connection work becomes difficult. That is,
The conventional configuration cannot improve the efficiency of the wiring work.

The present invention has been made in view of the above circumstances. A first object of the present invention is to connect wires with a relatively small force without using a dedicated jig or tool even though the pressure contact type terminal piece is provided. It is to provide a modular jack that improves work efficiency of connection work by enabling work, and a second purpose is to facilitate alignment work for associating a terminal piece and an electric wire at the time of connection. It is to provide a modular jack.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the invention of claim 1 is a terminal block to which a connection block having a plug insertion port into which a modular plug is detachably inserted and an external circuit are connected. Of a modular plug inserted into the housing through a plug insertion opening, a housing provided with a plurality of pressure contact type terminal pieces formed in a fork shape having a pressure contact slit with an open front end protruding from the terminal block. A plurality of contacts arranged in the housing so as to make elastic contact with the contacts and electrically connected to the respective terminal pieces; an aligning member for aligning the electric wires connecting the external circuit with the respective terminal pieces; It is possible to move the terminal piece in the protruding direction with respect to the housing and to move the electric wire and the terminal piece when moving toward the terminal block. When moving from the second position to the first position by being pivotally attached to the housing so as to be capable of undulating between the fixture and the first position where the terminal block is covered and the second position where the terminal block is opened. A lever that presses the fixing tool toward the terminal block, and when the lever moves from the first position to the second position, be connected to the fixing tool from the first position to a predetermined intermediate position. The interlocking means moves the fixing tool in a direction away from the terminal block in conjunction with the movement of the lever, and disconnects the lever from the fixing tool from the intermediate position to the second position.

According to this structure, when the lever is moved to the first position while the electric wires are aligned by the aligning member, the lever presses the fixing tool so as to approach the terminal block. Is pressed by the fixture, and the fixture presses the electric wire into the press-contact slit of the terminal piece. That is, the electric wire can be connected to the terminal piece only by operating the lever, and a separate jig or tool is not required. Moreover, by providing the lever that is pivotally attached to the housing, it is possible to press the fixture using the principle of leverage, so the work of connecting the electric wire with less force than when pressing only the fixture against the terminal block. Is possible.

Further, in the process of moving the lever from the first position, which is the position where the fixing member is pressed against the terminal block, to the second position, which opens the terminal block, the interlocking means connects the fixing member to the lever until halfway. By doing so, the fastener can be pulled away from the terminal block simply by operating the lever, and by further moving the lever, only the lever can be further opened while keeping the fastener in the fixed position. In other words, the lever can be fully opened even if the range of movement of the fixture is limited, and the position of the fixture and the wires can be easily seen when the lever is fully opened, which facilitates wire alignment work. It becomes.

According to a second aspect of the present invention, in the invention of the first aspect, the housing includes a body having a connection base and a base extending from the connection base, and a part of the housing inserted into the remaining base. And an insert body that is connected to the body in a form arranged on the base, and the terminal piece and the contact are held by the insert body. In this structure, since the housing is composed of the body and the insert body, it is possible to easily incorporate another member serving as a conductive portion between the body and the insert body. Further, in general, when molding a synthetic resin used as a material for a housing, it is sufficient to mold two members having a relatively simple shape and then assemble them, which facilitates manufacturing and improves productivity.

According to a third aspect of the present invention, in the second aspect of the present invention, both side surfaces of a portion of the insert body to be inserted into the connection base,
A coupling means for fixing the insert body to the connection base by engaging the insert body and the connection base in a concavo-convex manner is formed at a portion of the connection base that faces both side surfaces of the insert body. With this configuration, since the body and the insert body are coupled by the concave-convex engagement, a separate coupling means such as a screw or an adhesive is not required for the assembly work, and the assembly work is facilitated.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the interlocking means is detachably engaged with the interlocking projection provided on the side surface of the fixture. And a small protrusion that releases the engagement state with the interlocking protrusion by a required force that moves the lever from the first position to the second position as shown in FIG. The distance is regulated.

This configuration is a specific example of the interlocking means,
While the lever moves from the first position to the second position, the small projection and the interlocking projection are engaged with each other, whereby the fixture is separated from the terminal block along with the movement of the lever. By being restricted to the maximum distance from
When the distance of the fixing tool from the terminal block reaches the maximum distance, the engagement between the small projection and the interlocking projection is released, and the lever can be moved independently of the fixing tool.

According to a fifth aspect of the present invention, in the first or second aspect of the present invention, a sliding groove is formed on a side surface of the fixture in a protruding direction of the terminal piece, and a sliding rib provided on the terminal block is provided. By engaging with the sliding groove, the moving direction of the fixture is restricted to the protruding direction of the terminal piece. In this configuration, the moving direction of the fixing tool is regulated by the engagement of the sliding groove provided on the fixing tool and the sliding rib provided on the terminal block, so that the electric wire is press-fitted into the terminal piece by the fixing tool. At this time, an unnecessary force component does not act, the force can be efficiently applied to the electric wire, the electric wire can be pressed into the terminal piece with a comparatively small force, and the deformation of the terminal piece can be prevented.

According to a sixth aspect of the present invention, in the first or second aspect of the invention, the guide slits provided on the connection base in the vertical direction are provided with respect to the guide slits formed on the surface of the fixture facing the connection base. By engaging, the moving direction of the fixture is restricted to the protruding direction of the terminal piece. In this configuration, since the guide slit provided on the fixture and the guide rib provided on the connection base mesh with each other to restrict the moving direction of the fixture, unnecessary force is required when the wire is pressed into the terminal piece by the fixture. The component does not act, and the force can be efficiently applied to the electric wire, so that the electric wire can be pressed into the terminal piece with a relatively small force and the terminal piece can be prevented from being deformed.

According to a seventh aspect of the invention, in the first or second aspect of the invention, a lock groove is formed in the lever, and when the lever is in the first position, the lock groove is engaged to hold the lever. The locking protrusions are formed on the terminal block. With this configuration, the lever can be held at the first position, and it is possible to prevent the fixture from floating from the terminal block in the state where the electric wire is connected. As a result, it is possible to prevent the fixing tool from being lifted from the terminal block due to an external force acting on the lever or a tension acting on the electric wire, and the connection reliability of the electric wire is improved.

According to an eighth aspect of the present invention, in the first or second aspect of the present invention, the housing is provided with a bearing that pivotally mounts the lever by a rotary shaft, and the lever is provided in at least one of the lever and the bearing at the second position. A position holding means for locking to is provided. With this configuration, the lever can be locked in the second position, the lever can be prevented from falling down in a state where the lever is opened, and the lever does not obstruct when checking the positional relationship between the fixture and the electric wire. Connection work and
And alignment work becomes easy. Moreover, since the lever can be held so as not to fall down regardless of the mounting direction, the connection work and the alignment work are facilitated regardless of the mounting direction.

According to a ninth aspect of the present invention, in the first or second aspect of the invention, the lever is located at one end portion on the side opposite to the pivotal attachment portion in the longitudinal direction of the lever, and the lever is moved from the second position to the first position. the surface exerting pushing force when moving the one in which pushing portion has a step difference is formed.

In this structure, since the lever is provided with the stepped portion, the push position can be easily understood.
In addition, it is easy to apply force from the finger to the lever,
The lever can be operated easily. According to a tenth aspect of the present invention, in the first or second aspect of the present invention, the terminal piece is provided with a coating removing portion that is thinner than other portions in the vicinity of the opening of the pressure contact slit. In this configuration, when the wire is pressed into the terminal piece, the part that cuts the insulation coating of the wire is thin, so the insulation coating of the wire can be cut with a relatively small force, and as a result, the wire The force required to press into That is, the force applied to the lever can be made relatively small, and the wiring work becomes easier.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The modular jack shown below is
As shown in FIGS. 2 to 5, the housing 10 includes a body 10 made of a synthetic resin molded product which is an insulating material and a housing 20. The housing 20 includes a contact 31 and a terminal piece 32 via a connecting conductor 33. The electric conductor 30 (see FIG. 6) electrically connected is held. Eight conductors 30 are provided and are formed by punching out a sheet metal having elasticity.

The body 10 is continuously and integrally provided with a connection base 11 having a plug insertion port 13 into which a modular plug is inserted and which is opened on the front surface, and a base 12 extended rearward from the lower rear surface of the connection base 11. The connection board I1 is formed in a hollow shape, and a mounting hole 14 into which the insert 20 is inserted is opened in the lower portion of the rear wall (see FIG. 2). Further, a comb-teeth-shaped separation slit 15 is formed on the rear wall of the connection base 11 so as to face the upper edge of the mounting hole 14.

The insert 20 has a contact support base 21 for holding contacts 31 at a front end thereof, and a terminal base 22 having a terminal piece 32 projecting to the upper surface side is formed at a rear end thereof. Further, a wall plate 23 is formed integrally with the contact support base 21 and the terminal base 22 so as to partition the contact support base 21 and the terminal base 22. A convex step portion 22a is formed on the lower surface of the rear end portion of the terminal block 22, and the front surface of the convex step portion 22a and the wall plate 2 are formed.
The distance in the front-rear direction from the front surface of 3 is substantially matched with the dimension in the front-rear direction from the rear surface of the connection base 11 to the rear end surface of the base 12.

To connect the insert 20 to the body 10,
The contact support base 21 is inserted into the mounting hole 14. Engagement ridges 21a are provided on lower portions of both side surfaces of the contact support base 21 of the insert body 20, and the insert body is engaged with the engagement ridge 21a on the inner side surface of the connection base 11 of the body 10. An engagement groove 11a for guiding 20 is formed. Therefore,
When the insertion body 20 is slid forward while the engagement protrusion 21a is engaged with the engagement groove 11a, the insertion body 20 can be inserted to a predetermined position while the position of the insertion body 20 is restricted with respect to the body 10.

When the insert body 20 is inserted to the fixed position, the front surface of the wall plate 23 of the insert body 20 contacts the rear surface of the connection base 11,
The insert 20 is positioned with respect to the body 10. That is, the front surface of the wall plate 23 functions to regulate the amount of insertion of the insert 20 into the body 10. In addition, the contact support 21 is provided with the contacts 3 from the front end portion toward the rear upper side.
1 is projectingly provided, and the contact support base 2 of the insert 20 is provided.
When 1 is inserted into the connection base 11 of the body 10, each contact 31 is introduced into the separation slit 15. At the position where the wall plate 23 of the insert 20 abuts the rear surface of the connection base 11, the rear end of the contact 31 is kept inserted in the separation slit 15 to prevent the contacts 31 from contacting each other. . By thus inserting the contact 31 into the connection base 11, the contact 31 can be elastically contacted with the contact of the modular plug inserted into the connection base 11 through the plug insertion opening 13.

An engaging projection 12a is provided on the rear end surface of the base 12, and an engaging recess (not shown) for engaging with the engaging projection 12a is provided on the lower surface of the rear portion of the terminal block 22 provided on the insert 20. Has been formed. Therefore, when the insert body 20 is inserted into the body 10 to the fixed position, the engaging protrusion 12a provided on the base 12 meshes with the engaging recess provided on the insert body 20 to perform positioning. Furthermore, in this state,
The body 10 and the insert body 20 are fixed by engaging the retaining projections 21c provided on the both sides of the rear portion of the contact support base 21 of the insert body 20 with the retaining holes 11c provided on the both sides of the rear portion of the connecting base 11. It That is, the retaining projection 21c and the retaining hole 11c function as a coupling means for coupling the body 10 and the insert 20.

As described above, the engaging projection 2 is formed in the engaging groove 11a.
1a is engaged, the engagement protrusion 12a is engaged with the engagement recess, and the mounting hole 14 is engaged with the contact support base 21.
Since the wall plate 23 abuts on the connection base 11 and the front surface of the convex step portion 22a abuts on the rear end surface of the base 12, the body 10 and the insert body 20 are positioned relative to each other. Moreover, when the insertion body 20 is inserted into the body 10 to the predetermined position, the retaining projection 21c engages with the retaining hole 11c, so that the insertion body 20 is fixed to the body 10 at the predetermined position. In addition, the terminal block 22 provided on the rear portion of the insert 20 is placed on the base 12 in a state where the insert 20 is coupled to the body 10.

The modular jack shown in this embodiment has four
This is for connecting the twisted pair cable 1 of 8 cores, and holds the eight conductors 30 in the insert body 20.
The terminal pieces 32 of each conductor 30 protrude from the upper surface of the terminal block 22 and are arranged in two rows in the front and rear. The terminal piece 32 is of a pressure contact type formed in a fork shape having a pressure contact slit 32a whose upper edge is opened between a pair of teeth, and the width of the pressure contact slit 32a is the pressure contact slit 32a with the core wire of the electric wire 2 to be connected. It is set to such a degree that both side edges are pressed against each other. That is, when the electric wire 2 having the insulation coating is press-fitted into the press-contact slit 32a from above, the insulation coating of the electric wire 2 is pressed into the press-contact slit 3a.
The core wire of the electric wire 2 is introduced into the pressure contact slit 32a while the insulation coating is stripped by cutting the core wire between both side edges of the pressure contact slit 32a.

Since it is necessary to cut the insulating coating of the electric wire 2 on both side edges of the pressure contact slit 32a in the terminal piece 32, as shown in FIG. 7, the tip portion of the terminal piece 32 has a thinner coating than other portions. The removal portion 32b may be formed. By adopting this shape, the insulating coating of the electric wire 2 can be cut more easily, and as a result, the force required for press-fitting the electric wire 2 into the terminal piece 32 is reduced.

In order to connect the electric wire 2 to the above-mentioned terminal piece 32 without using a separate tool or jig, in the present invention, an aligning function for holding a plurality of electric wires 2 together and an electric wire 2 are provided. Fixture 40 having a press-fitting function of press-fitting into the press-contact slit 32a of the terminal piece 32, and the fixture 40
There is provided a lever 50 for exerting a force toward the terminal block 22. The fixture 40 and the lever 50 are molded products of synthetic resin and are provided in pairs.

Each lever 50 is mounted on the housing (body 10 and insert body 20) by being pivotally attached by a rotary shaft 51 to a pair of bearings 24 projecting continuously and integrally on the upper surface of the wall plate 23 of the insert body 20. On the other hand, it can be undulated. That is, the lever 50 can be undulated between the position where the terminal block 22 is covered and the position where the terminal block 22 is opened. The lever 50 is pivotally attached to the housing by inserting the rotary shaft 51 into the arm piece 52 and the bearing 24 such that the bearing 24 is sandwiched between a pair of left and right arm pieces 52 protruding from one end in the longitudinal direction. Further, both levers 50 are pivotally attached to the housing by one rotating shaft 51. Lever 50
Is about 90 degrees, and when the lever 50 is raised, the lever 50 abuts the rear surface of the connection base 11 at a position where the longitudinal direction of the lever 50 is substantially orthogonal to the terminal block 22. The maximum opening angle of 50 is restricted (see FIG. 1A).

Each fixture 40 is attached to the terminal block 22 with the lever 50 opened. The fixture 40 is self-standing in this state, and when the lever 50 is tilted, the fixture 40 is pressed by the lever 50 as the lever 50 rotates (FIGS. 1B to 1E).
(See), the fixture 40 moves downward. Each fixture 40
Is formed in a rectangular tube shape through which the electric wire 2 is inserted, and the inside of the tube is divided by a partition wall 41 into four separation passages 42 having a rectangular cross section. The electric wire 2 is inserted into each of the separation passages 42 one by one.

By the way, when connecting the electric wire 2 to the terminal piece 32, it is necessary to move the electric wire 2 along the protruding direction of the terminal piece 32. Therefore, the electric wire 2 is held in the fixture 40. In order to connect the terminal block 22 to the terminal block 22, the movement direction needs to be regulated so that the terminal block 22 moves along the protruding direction of the terminal piece 32. Therefore, a guide column 43 is provided at the center of the lower surface of the fixture 40, and a guide hole 25 having an opening shape that substantially matches the cross-sectional shape of the guide column 43 is formed in the terminal block 22 provided in the insert body 20. ing. The guide hole 25 is formed so as to penetrate from the upper surface of the terminal block 22 to the lower surface of the convex step portion 22a. In addition, since two fixtures 20 are provided for one insert 20,
Two guide holes 25 are also formed. The guide column 43 has an H-shaped cross section, and has a shape such that the fixture 40 does not rattle forward, backward, leftward and rightward.

Since the fixture 40 is used for press-fitting the electric wire 2 into the terminal piece 32, it can be moved up and down from the position where the electric wire 2 contacts the upper end of the terminal piece 32 to the position where the electric wire 2 is completely connected to the terminal piece 32. The thickness of the base 12 and the terminal block 22 and the projecting dimension of the guide column 43 are set so that the lower end of the guide column 43 is located in the guide hole 25 in this moving range.

Further, three guide slits 45 running vertically are formed at the front end of each fixture 40 at positions corresponding to the partition wall 41. Guide ribs 26 that are inserted into the respective guide slits 45 of the fixture 40 are provided on the lower portion of the rear surface of the wall plate 23 in a protruding manner. Therefore, by inserting the guide ribs 26 into the respective guide slits 45, the fixture 40 moves in the up-down direction with the movement in the left-right direction being restricted. Further, the fixing tool 40 is restricted from moving forward because a part of its front surface is in sliding contact with the wall plate 23. Thus, the guide slit 45, the wall plate 23, and the guide rib 26 have a function of restricting the moving direction of the fixture 40, and the guide column 43 and the guide hole 25.
In cooperation with the fixing device 40, the fixing device 40 is moved in the protruding direction of the terminal piece 32 without rattling. In addition, the guide rib 26 is
Since it corresponds to the position of the partition wall 41 provided in the fixture 40, the tip ends of the electric wires 2 inserted into the separation passages 42 are separated from each other by the guide ribs 26. That is, the guide rib 26 has both the function of guiding the fixture 40 and the function of aligning the electric wires 2.

The guide column 43 has a cross section of approximately H as described above.
Although it is formed in a character shape, as shown in FIG. 8B, a gap is formed between the lower portion of the central piece and both left and right pieces, and the lower portion of the central piece has flexibility in the front-back direction. I have it. Further, a locking projection 43a is provided on the lower end of the central piece of the guide column 43 so as to project rearward, and as shown in FIG.
It is adapted to be locked by a holding projection 25a provided at the upper end of the. That is, as shown in FIG. 1 (f), the locking protrusion 43 a is held at the position where the fixture 40 is separated from the terminal block 22.
By being locked to 5a, the fixture 40 is prevented from falling out of the housing (body 10 and insert 20). Further, as shown in FIG.
As shown in (b), the latch projection 25b is provided so that the lower end of the fixture 40 is locked by the latch projection 25b slightly below the position where the locking projection 43a is locked by the holding projection 25a. There is. As a result, the fixture 40 is kept in a position where it is lifted from the terminal block 22.

In the fixture 40, the locking projection 43a is provided on the insert 20.
Although the central piece of the guide column 43 is locked by the holding projection 25a of FIG. 1, the fixing tool 40 can be removed from the insert 20. That is, the fixture 40 is attachable to and detachable from the insert 20. At the rear end of the insert 20, the removal groove 2 opened to the upper surface and the rear edge of the terminal block 22.
7 is formed so that a gap for inserting a tool is formed between the rear portion of the fixture 40 and the bottom surface of the removal groove 27 at the lower end position of the fixture 40. Therefore, as shown in FIG. 9, the tip of a flat-blade screwdriver or the like can be inserted into this gap, and the fixture 40 can be pushed up with the rear edge of the removal groove 27 as a fulcrum .

By the way, since the fixture 40 presses the electric wire 2 introduced into the separation passage 42 into the terminal piece 32,
When the fixture 40 moves downward, the electric wire 2 is connected to the terminal piece 32.
As can be press-fit into press-contact slit 32a,
Two pressing parts 46 are provided before and after the portion where the terminal piece 32 is provided.
d and 46e (see FIG. 10). Each holding part 4
6d and 46e pass between the adjacent terminal pieces 32 of one row.
And is extended to a portion facing the terminal piece 32 of the other row.
It is formed in a shape including a protruding piece. Holding part 46
d, By such arrangement the 46e, since it is possible to exert a pressing force to the wire 2 at a distance closer to a with the terminal piece 32 is around the terminal piece 32, the pair of pressing portions 4
Terminal piece 3 without bending electric wire 2 between 6d and 46e
Can be pressed into 2. That is, the pressing force of the fixture 40 can be efficiently transmitted to the electric wire 2.

A pressing rib 47 is provided on the upper surface of the fixture 40 so as to abut against the lower surface of the lever 50. Also, lever 5
A pair of hook pieces 50a is projectingly provided on both sides of the lower surface of 0. A small protrusion 50b is formed on the inner surface of the lower end of each hook piece 50a.
Is formed, and interlocking protrusions 47b are provided on both left and right side surfaces of the pressing rib 47. Interlocking protrusion 47b and small protrusion 5
0b engages with a part of the range of the undulation of the lever 50. Specifically, as shown in FIG. 1A, the interlocking protrusion 47b does not engage with the small protrusion 50b at the position where the lever 50 makes its longitudinal direction substantially orthogonal to the upper surface of the terminal block 22, and the lever 50 is tilted. In the process, the lower end of the hook piece 50a hits the interlocking protrusion 47b as shown in FIG. 1 (b). If the electric wire 2 is inserted into the fixture 40, the electric wire 2 will be connected to the terminal piece 32.
Since the fixture 40 is less likely to move downward due to the insertion resistance received from the small projection 50b, the small projection 50b rides over the interlocking projection 47b and the lower surface of the lever 50 contacts the upper surface of the pressing rib 47 as shown in FIG. 1C. Like When the lever 50 is tilted as shown in FIG. 1D, the lower surface of the lever 50 pushes the pressing rib 47 to move the fixture 40 downward, and as shown in FIG. It is pushed down to the position where it abuts 22. On the upper surface of the rear end portion of the lever 50, there is a pushing portion 50c having a step so as to be lower than the front end portion.
Is formed so that the pushing portion 50c can be pressed with a finger when the lever 50 is tilted. Therefore, it is easy to apply a force to the lever 50.

Lock grooves 5 are formed on both sides of the rear end of the lever 50.
3 is formed, and one lock projection 29 that can be engaged with the lock groove 53 is provided upright in the rear part of the terminal block 23 and in the center part in the left-right direction. Lock groove 53 is lever 50
Is open to the side surface and the lower surface (the lower surface at the position of FIG. 1E), the upper portion is wider than the lower portion, and the shape seen from the side surface is formed in an inverted L shape. On the other hand, the lock protrusion 2
Reference numeral 9 is a shape that can be engaged with the bent portion of the lock groove 53, and has a function of locking the lever 50 so as not to lift up at the position of FIG. Here, the left and right dimensions of the lock projection 29 are set so that one lock projection 29 engages with the two lock grooves 53 formed on the facing surfaces of the two levers 50. Also,
Although one lock groove 53 of each lever 50 does not function, the provision of this lock groove allows the two levers 50 to have the same shape, thereby preventing an increase in die cost.

The lower portion of the lock protrusion 29 is formed to have a dimension in the front-rear direction larger than that of the upper portion, and functions as a sliding rib 29a. Sliding grooves 40a that mesh with the sliding ribs 29a are formed on both side surfaces of the fixing tool 40, and the sliding grooves 40a are guided by the sliding ribs 29a when the fixing tool 40 moves up and down. . That is, the sliding rib 29a and the sliding groove 40a
Also, the movement direction of the fixture 40 is restricted so that the fixture 40 moves only in the vertical direction .

The operation of moving the fixture 40 downward by tilting the lever 50 has been described above. To move the fixture 40 upward, raise the lever 50 as shown in FIG. 1 (f). Good. At this time, the small protrusion 50b engages with the interlocking protrusion 47b, and the fixture 40 moves upward as the lever 50 moves. As described above, at the upper limit position of the fixture 40, the locking projection 43a is held by the holding projection 25.
It is regulated by the position in contact with a. Here, the state in which the locking projection 43a is locked to the holding projection 25a can be released by applying a relatively large upward force to the fixture 40, but the locking projection 43a is held by the holding projection 25a. Of the locking projection 43a, the holding projection 25a, the interlocking projection 47b, and the small projection 50b so that the engagement state between the interlocking projection 47b and the small projection 50b is released without releasing the state of being locked by the. Each dimension is defined. Therefore, if the lever 50 is further raised after the fixture 40 has moved to the upper end position, the interlocking protrusion 47b and the small protrusion 5
The engagement state with 0b is released and only the lever 50 is raised as shown in FIG. By this operation, the lever 50 can be sufficiently opened to expose the fixture 40, and it is easy to confirm the insertion state of the electric wire 2 inserted in the fixture 40 when the lever 50 is raised. ing.

Further, a holding dowel 24a forming a position holding means is projected from both side surfaces of the bearing 24, and a holding recess forming a position holding means together with the holding dowel 24a is formed on an inner surface of the arm piece 52 of the lever 50. 52a is formed.
The holding dowel 24a and the holding recess 52a engage with each other at the position in which the lever 50 is raised as shown in FIG. 1A, and the lever 50 falls down due to the uneven engagement between the holding dowel 24a and the holding recess 52a. It gets harder. That is, the lever 50 does not fall down by its own weight, and as a result, the lever 50
Is kept awake. This allows lever 50
Since the electric wire 2 can be passed through the fixture 40 in a state where the wire is completely opened, the connection work is facilitated. Further, since the lever 50 does not inadvertently fall down, the lever 50 can be opened regardless of the mounting direction of the modular jack.

In order to connect the twisted pair cable 1 to the above-mentioned modular jack, the electric wire 2 is connected to each fixture 40 by 4
The books are inserted one by one, and the fixture 40 is mounted between the terminal block 22 and the lever 50. In this state, when the position is adjusted so that the tip of the electric wire 2 is separated by the guide rib 26 and the lever 50 is tilted, the fixture 40 moves downward and the electric wire 2 is connected to the terminal piece 32. Since the moving direction of the fixture 40 is restricted to the vertical direction as described above, the electric wire 2 moves downward along the terminal piece 32, and at this time, the terminal piece 32.
Therefore, the force in the thickness direction does not act on the terminal, and the terminal piece 32 is not bent or the like.

Further, the rotary shaft 51 which is a fulcrum of the lever 50
From the fulcrum to the rear end of the lever 50 that applies a pressing force to the lever 50, as compared with the distance from the contact point to the pressing rib 47, which is the point of application of the pressing force. Therefore, each electric wire 2 can be pushed into the press contact slit 32a with a relatively small force. Moreover, 8
Since the four electric wires 2 are divided into four when connecting them, the force required for the connection is small as compared with the case where the eight electric wires 2 are simultaneously connected to the terminal piece 32, and as a result, the lever 5 is connected.
The length of 0 can be shortened. That is, it leads to miniaturization. Furthermore, by simply applying a force to the lever 50 so that the housing and the lever 50 are sandwiched,
Since each electric wire 2 can be pushed into the press contact slit 32a, no additional jig or tool is required, and the connection work can be performed only by the modular jack. When the electric wire 2 is connected to the terminal piece 32, the lock protrusion 29 provided upright on the terminal block 22 engages with the lock groove 53 of the lever 50.
The lever 40 does not inadvertently open and the fixture 40 maintains the state in which the electric wire 2 is connected to the terminal piece 32.

Since the lower wall of the separation passage 42 provided in the fixture 40 is open only at the portion corresponding to the terminal piece 32,
From the state where the electric wire 2 is connected to the terminal piece 32,
When 0 moves upward, the electric wire 2 is pushed upward by the lower wall of the separation passage 42, and the electric wire 2 is pulled out from the terminal piece 32. That is, if the lever 50 is raised as described above while the electric wire 2 is connected, the fixing tool 40 can be moved upward and the electric wire 2 can be pulled out from the terminal piece 32.
After that, if the electric wire 2 is pulled out from the fixture 40, the electric wire 2 can be removed. In addition, the wire holding force of the terminal piece 32 is
When the force for holding the fixture 40 of the bar 50 is greater than
As a leverage with a flat-blade screwdriver, as shown in Figure 9
If it is used for, the fixture 40 can be moved upward.

By the way, the terminal pieces 32 are arranged so as to be plane-symmetrical in the left-right direction. That is, the two central terminal pieces 32 in the front row are the two central terminal pieces 3 in the rear row.
The left and right terminal pieces 32, which are located between the two and sandwich the plane of symmetry.
Are arranged such that one terminal piece 32 in the rear row is located between the two terminal pieces 32 in the front row, and one terminal piece 32 in the front row is located between the two terminal pieces 32 in the rear row. Has been done. By arranging the eight terminal pieces 32 in this manner, the lateral dimension required to arrange the terminal pieces 32 can be reduced as compared with the case where the terminal pieces 32 are arranged in one row. The housing (body 10
Also, the lateral dimension of the insert 20) can be reduced.

By providing eight terminal pieces 32, four pairs of twisted pair wires can be connected, and each pair of twisted pair wires is connected to one terminal piece 32 which is adjacent to each other in the left-right direction. That is, the two electric wires 2 that are paired as a twisted pair wire are connected to the leftmost terminal piece 32 in the rear row and the leftmost terminal piece 32 in the front row, and are the second from the left edge of the rear row and the second from the left edge of the front row. Two electric wires 2 forming a pair as a twisted pair wire are connected to the two terminal pieces 32, and the remaining electric wires 2 are also connected so as to be adjacent to each other in pairs.

Further, in the conductor 30, the arrangement order of the contact 31 and the connection conductor 33 in the left-right direction is appropriately changed,
Further, the width of the connecting conductors 33 and the distance between them are adjusted to reduce the amount of crosstalk between the twisted pair wires. In particular, contact 31 and connecting conductor 3
Since the arrangement order in the left-right direction with respect to 3 is appropriately exchanged, in the state where the modular plug is connected, an unbalanced current having a phase opposite to the unbalanced current generated in the modular plug is generated in the connection conductor 33. The amount of crosstalk is reduced by canceling out the unbalanced currents of the two.

The modular jack A constructed as described above may be housed in an outer case for attachment to a construction surface such as a wall. Various things can be used for the outer case, but in view of the preceding wiring,
It is desirable to use an outer case having the same shape as a general wiring device. For example, as shown in FIG. 11, it is possible to use an exposed outer case 70 that is directly fixed to the construction surface such that it is brought into contact with the construction surface such as a wall surface. The outer case 70 is formed by connecting the base 70a and the cover 70b together, and has hooking claws (not shown) provided on the base 70a with respect to recesses formed in the inner peripheral surface of the peripheral wall of the cover 70b. ) Is engaged, the cover 70b is coupled to the base 70a. The base 70a is made of wood screw (not shown), double-sided adhesive sheet, magnet, etc.
a is fixed to the construction surface. A fitting concave portion 71 into which the modular jack A is fitted is formed in the base 70a, and a receiving piece 72 with which the positioning step portion 11b provided in the modular jack A abuts is provided in a protruding manner on a part of the peripheral wall of the fitting concave portion 71. ing. An opening window 73 corresponding to the plug insertion opening 13 is formed on one surface of the base 70a. When such an outer case 70 is used, the lever 5 is provided by the cover 70b.
You can hold down 0 so that you don't get up. Therefore, in this structure, the lock protrusion 29 and the lock groove 53 can be omitted.

Although the basic embodiment of the present invention is as described above, each constituent element can be replaced with each member described below. Therefore, each replaceable member will be described below for each component. In the basic embodiment, the fixture 40 is inserted by being inserted into the guide slit 45 of the fixture 40.
Although the guide rib 26 for guiding the vertical movement of the insert body 20 is continuously and integrally formed with the wall plate 23 of the insert body 20, the guide rib 26 may be formed separately from the insert body 20. That is, FIG.
As shown in FIG. 2, a guide block 80 having guide ribs 26 is formed, and the guide block 80 is fixed by adhesion or welding so as to be in close contact with a corner portion between the terminal block 22 and the wall plate 23 in the insert 20. Of. The guide ribs 26 are formed on the guide block 80. In this way, even if the guide block 80 provided separately from the insert body 20 is fixed to the insert body 20, it can be made to function in the same manner as that in which the guide rib 26 is formed integrally with the insert body 20 at the same time.

Further, the bearing 24 of the lever 50 is attached to the insert body 20.
Although the example provided on the wall plate 23 of the above has been described above, as shown in FIG. 13, the bearing 24 is provided on the upper end portion of the rear wall of the connection base 11 of the body 10.
May be provided. In this case, the wall plate 23 is lower than the connection board 11. Next, a replaceable configuration of the fixture 40 will be described. Since the fixture 40 has a function of aligning the electric wires 2, it is desirable to be able to confirm the aligned state of the electric wires 2. So if you make it with a transparent material,
As shown in FIG. 14, the aligned state of the electric wires 2 can be easily visually recognized. The fixture 40 may be opaque, but if it is transparent, not only the aligned state of the electric wires 2 but also the connected state to the terminal piece 32 can be confirmed.

As described above, when the lever 50 is tilted, the lock projection 29 engages with the lock groove 53 to fix the lever 50. Therefore, even when a tension is applied to the electric wire 2, the fixing tool 40 is fixed. The upward movement can be prohibited, and as a result, the electric wire 2 can be prevented from being accidentally detached. In order to fix the lever 50 at the fixed position in this way, a belt-shaped binding tool 58 as shown in FIG. 15 (b) is used so that the lever 50 does not rise up from the body 10 as shown in FIG. 15 (a). The binding tool 58 may be wrapped around the. The belt 58 is used as the binding tool 58.
A retaining ring 58b may be provided at one end of a and a sheet fastener may be provided at the other end. Lever 50 is body 1
In order to prevent the belt body 58a from rising from 0, the other end portion of the belt body 58a may be folded back by passing through the retaining ring 58b after the binding tool 58 is wound, and the belt bodies 58a may be brought into close contact with each other by the planar fastener.

One of the important functions of the fixture 40 is to press the electric wire 2 into the press-contact slit 32a of the terminal piece 32, and as described above, the holding portion 46d for abutting the electric wire 2 on the fixture 40 , 46e is formed. The pressing portions 46d and 46e described above are disposed before and after the terminal piece 32.
To be able to press the wire 2 in the near site had only set after the previous portion is provided with the terminal pieces 32. That is, as shown in FIG. 10, there are two rows of pressing portions 46d and 46e.
It was equipped with. If this configuration is adopted, the electric wire 2
When the electric wire 2 is connected to the terminal piece 32, the electric wire 2 is not bent by the reaction force received from the terminal piece 32, and the force component hardly acts except in the direction of press-fitting the electric wire 2 into the terminal piece 32. The pressing force from the lever 50 can be efficiently transmitted, and since the force component in the thickness direction does not act on the terminal piece 32, the terminal piece 32 is not deformed.

The same function can be realized with a shape as shown in FIG. This is because two rows of pressing parts 46b and 46c are provided before and after the portion where the terminal piece 32 is provided.
And the pressing portion 46a also between the front and rear two rows of the terminal pieces 32.
Is provided, and the three rows of the holding portions 46a to 46c are
Be prepared. The holding portions 46a to 46c are separated from each other.
Pressing portions formed on the upper surface of the passage 42 and adjacent to each other in the front and rear
The upper end of the terminal piece 32 is introduced between 46a to 46c.
A groove for introducing the terminal piece 32 on the upper surface of the separation passage 42.
Are formed. That is, the terminal piece 32 is as described above.
Since the front and rear rows are arranged in two rows, the terminal pieces 3 in each row
When the pressing portion 46a is provided at a position corresponding to the two
Both of the terminal pieces in the front and rear rows are connected to the pressing portion 46a.
The pressing portions 46b and 46c, which are located on both sides of 32, are provided.
Be done. The pressing parts 46a to 46c can be arranged in this way.
By, the front and rear of the terminal piece 32 and the
Is it possible to exert a pressing force on the wire 2 at a certain distance?
Bend the electric wire 2 between the pair of pressing portions 46a to 46c.
It can be pressed into the terminal piece 32 without being pressed. Tsuma
Therefore, the pressing force of the fixture 40 can be efficiently transmitted to the electric wire 2.
You can In each fixture 40, one of the left and right sliding grooves 40
Since only "a" meshes with the sliding rib 29a, the other sliding groove
40a is not working, but like lever 50
By forming the fixture 40 in the same shape, the mold cost can be reduced.
It is possible to prevent an increase in the cost.

The fixture 40 also has a function as an electric wire removing member for removing the electric wire 2 connected to the terminal piece 32.
That is, the lower wall 4 formed integrally with the fixture 40 continuously.
2a is for connecting the wire 2 to the terminal piece 3 if the fixture 40 moves upward.
Push it up like you pull it from 2. The wire removing member does not necessarily have to be used as the lower wall 42a of the fixture 40. As shown in FIG. 17, the lower surface of the fixture 40 is opened and the wire removing plate 48 separate from the fixture 40 is provided. It may be provided. As shown in FIG. 17B, the wire removing plate 48 has an insertion hole 48a through which the guide column 43 of the fixture 40 is inserted.
Equipped with. Therefore, the moving direction of the wire removing plate 48 is regulated by the guide column 43 in the vertical direction, and when removing the wire 2, the wire removing plate 48 may be pushed up by using a tool such as a minus driver.

Another important function of the fixture 40 is as an aligning member for aligning the electric wires 2. That is, the partition wall 4
The separation passages 42 separated by 1 are provided, and each separation passage 4
Since the electric wires 2 are inserted one by one into the electric wires 2, the electric wires 2 can be aligned at the positions corresponding to the terminal pieces 32. Also,
Before connecting the wire 2 to the terminal piece 32, multiple wires (here, 4
Since the electric wire 2 of this) is held in advance in the fixture 40 in a state of being arranged so as to correspond to the terminal piece 32, it is easy to prevent erroneous connection of the electric wire 2. Furthermore, since the fixture 40 can be removed from the insert 20, the fixture 40 can be removed from the insert 2.
Remove the wire 2 from 0 and insert the wire 2 into the fixture 40.
If the surplus portion of the tip end of the wire is cut in accordance with the end of the fixture 40, the lengths of the electric wires 2 do not become uneven, and the increase in the crosstalk amount is suppressed. However, in order to exert these effects, it is desirable to use the fixture 40 including the lower wall 42a.

Since the electric wire 2 is a twisted pair wire, when it is inserted into the fixture 40, the twist must be unwound at the tip. However, if the untwisted dimension is unnecessarily large, the transmission characteristics will change, so the untwisted dimension must be minimized. Further, since there are four pairs of twisted pair wires, if the size of untwisting is different in each pair, the transmission characteristics are affected. Therefore, the gauge 3 may be provided as shown in FIG. 18 in order to keep the untwisted dimension constant. The gauge 3 can be provided at an appropriate portion, and for example, can be provided on any of the lever 50, the insert 20, the fixture 40, and the body 10. In the illustrated example, one lever 5
It is provided on the upper surface of 0 and the length of untwisting the wire 2 and the wire 2
It is easy to understand the correspondence with the insertion length. The gauge 3 is formed in a groove shape at the same time when the lever 50 is formed.

Although the number of levers 50 is two in the above configuration example, the number of levers 50 may be one as shown in FIG. In this structure, the lever 50 is provided with the hole-shaped lock groove 53 ′ that can be engaged with the lock protrusion 29. Lock groove 5
3'is formed so as to penetrate in the thickness direction of the lever 50, and the inside thereof is formed into a shape in which two lock grooves 53 are combined. Further, in the example of FIG.
It is as an individual. The number of levers 50 and the number of fixtures 40 do not necessarily have to match.

[0058]

According to the first aspect of the present invention, there is provided a housing including a connection base having a plug insertion opening into which a modular plug is detachably inserted and a terminal base to which an external circuit is connected,
A plurality of pressure-contact type terminal pieces formed in a fork shape having a pressure-contact slit with an open front edge protruding from the terminal block and elastically contact with the contacts of the modular plug inserted into the housing through the plug insertion opening. A plurality of contacts arranged in the housing and electrically connected to the respective terminal pieces, an aligning member for aligning the electric wires connecting the external circuit with the respective terminal pieces, and holding the electric wires and the housing A fixture that is movable in the protruding direction of the terminal piece with respect to the terminal block and that enables electrical connection between the electric wire and the terminal piece when moving in a direction approaching the terminal block; and a first position that covers the terminal block. The terminal block is pivotally attached to the housing so that it can be raised and lowered between the terminal block and the second position where the terminal block is opened, and when moving from the second position to the first position, the fixture is pressed in a direction to approach the terminal block. And over, the lever first position second
When moving from the first position to the predetermined intermediate position, the fixing device is linked to the movement of the lever by moving from the first position to a predetermined intermediate position, and the fixing device is moved in a direction away from the terminal block. The second position is composed of interlocking means for separating the lever from the fixture, and if the lever is moved to the first position while the wires are aligned by the aligning member, the lever is fixed. The electric wire is pressed against the fixture by pressing so as to approach the terminal block, and the fixture presses the electric wire into the pressure contact slit of the terminal piece, so that the electric wire can be connected to the terminal piece only by operating the lever. There is an advantage that a separate jig or tool is not required to connect the electric wire to the terminal piece. Moreover, since the housing is provided with a lever pivotally attached, it is possible to press the fixture using the principle of leverage.
There is an advantage that it is possible to connect the electric wires with a smaller force than in the case where only the fixing tool is pressed against the terminal block.

Further, in the process of moving the lever from the first position, which is the position where the fixing tool is pressed against the terminal block, to the second position, which opens the terminal block, the interlocking means connects the fixing tool to the lever halfway. By doing so, you can pull the fixture away from the terminal block just by operating the lever, and if you move the lever further, you can further open only the lever while keeping the fixture in the fixed position, the range of movement of the fixture Even when the lever is limited, the lever can be sufficiently opened, and when the lever is fully opened, the positions of the fixture and the electric wires can be easily visually recognized, so that there is an advantage that the electric wires can be easily arranged.

According to a second aspect of the present invention, the housing includes a body having a connection base and a base extending from the connection base, and a part of the housing is inserted into the connection base and the remaining portion is arranged on the base. And the terminal piece and the contact are held by the insert body, and the housing is composed of the body and the insert body. There is an advantage that another member that becomes a conductive portion can be easily incorporated. In addition, generally, when molding a synthetic resin used as a material of a housing, it is sufficient to mold two members having a relatively simple shape and then assemble them, and therefore, there is an advantage that manufacturing is facilitated and productivity is improved.

According to a third aspect of the present invention, the insert body and the connection base are formed in a concavo-convex pattern on both side surfaces of the insertion body that are to be inserted into the connection base and on the portions of the connection base that face the both side surfaces of the insertion body. A coupling means for fixing the insert body to the connection base by engaging is formed, and since the body and the insert body are coupled by the concavo-convex engagement, a separate screw such as a screw or an adhesive is used during the assembly work. There is an advantage that the assembling work is facilitated without the need for connecting means.

According to a fourth aspect of the invention, the interlocking means is provided on the lever so as to detachably engage with the interlocking projection provided on the side surface of the fixture, and the lever is provided with the first lever. And a small protrusion that releases the engagement state with the interlocking protrusion by the required force to move the lever from the position to the second position, and the maximum distance of the fixture from the terminal block is restricted. The small protrusion and the interlocking protrusion engage with each other in the process of moving from the first position to the second position, so that the fixture is separated from the terminal block along with the movement of the lever. Since the maximum distance of the fixture is restricted, when the distance from the terminal block of the fixture reaches the maximum distance, the engagement state between the small protrusion and the interlocking protrusion is released and the lever can move independently of the fixture. It becomes.

According to a fifth aspect of the present invention, a sliding groove is formed on the side surface of the fixing member in the protruding direction of the terminal piece, and the sliding rib protruding from the terminal block meshes with the sliding groove to fix the fixing member. The moving direction is restricted by the protruding direction of the terminal piece, and the moving direction of the fixing tool is restricted by the engagement of the sliding groove provided on the fixing tool with the sliding rib protruding on the terminal block. From
An unnecessary force component does not act when the wire is press-fitted into the terminal piece by the fixture, and the force can be efficiently applied to the wire, and the wire can be pressed into the terminal piece with a relatively small force and the terminal piece There is an advantage that the deformation of can be prevented.

According to the sixth aspect of the present invention, the guide slits formed on the surface of the fixture facing the connection base are engaged with the vertical guide ribs provided on the connection base, so that the movement direction of the fixture is changed. It is regulated in the protruding direction of the terminal piece, and since the guide slit provided on the fixture and the guide rib provided on the connection base mesh with each other, the moving direction of the fixture is regulated. Unnecessary force component does not act when press-fitting into the piece, and the force can be efficiently applied to the wire, and the wire can be press-fitted into the terminal piece with a comparatively small force and deformation of the terminal piece is also prevented. The advantage is that

According to the seventh aspect of the present invention, the lock groove is formed in the lever, and the terminal block is provided with the lock protrusion that engages with the lock groove and holds the lever when the lever is located at the first position. However, there is an advantage that the lever can be held at the first position, and as a result, the fixture can be prevented from floating from the terminal block in the state where the electric wire is connected. As a result, it is possible to prevent the fixture from rising from the terminal block due to an external force applied to the lever or a tension applied to the electric wire, which has an effect of improving the connection reliability of the electric wire.

In the eighth aspect of the invention, the housing is provided with a bearing for pivotally mounting the lever on the rotary shaft, and at least one of the lever and the bearing is provided with a position holding means for locking the lever at the second position. The lever can be locked in the second position, and it can be prevented that the lever falls down when the lever is opened, and the lever can be There is an advantage that the wiring work is easy without disturbing. Moreover, since the lever can be held so as not to fall down regardless of the mounting direction, there is an advantage that the wiring work is facilitated regardless of the mounting direction.

According to a ninth aspect of the present invention, the lever is provided at the second end of the lever at one end on the side opposite to the pivotal attachment portion in the longitudinal direction of the lever.
The surface exerting pushing force from the position when moving to the first position, which press section having a stepped difference is formed, by being provided with a pressing portion thereof with a step on the lever The advantages are that the pushing position is easy to understand, the force from the finger is easily applied to the lever, and the operation of the lever is easy.

According to the tenth aspect of the invention, the terminal piece is provided with a coating removing portion near the opening of the press contact slit, which is thinner than other portions, so that when the electric wire is press-fitted into the terminal piece, insulation of the electric wire is provided. Since the portion where the coating is cut is thin, the insulating coating of the electric wire can be cut with a relatively small force, and as a result, the force required to press the electric wire into the terminal piece is reduced. That is, there is an advantage that the force applied to the lever can be made relatively small and the connection work becomes easier.

[Brief description of drawings]

FIG. 1 is an operation explanatory diagram of an embodiment.

FIG. 2 is an exploded perspective view from the front showing the embodiment.

FIG. 3 is an exploded perspective view from the rear showing the embodiment.

FIG. 4 is a front perspective view showing the embodiment.

FIG. 5 is a rear perspective view showing the embodiment.

6A and 6B show a conductor used in the embodiment, where FIG. 6A is a front perspective view and FIG. 6B is a rear perspective view.

FIG. 7 is an enlarged perspective view of a terminal piece used in the embodiment.

FIG. 8 shows a fixture of the embodiment, (a) is a vertical sectional view,
(B) is a cross-sectional view.

FIG. 9 is an operation explanatory view showing how to remove the fixture in the embodiment.

FIG. 10 shows a fixture used in the embodiment, (a) is a vertical sectional view, (b) is a bottom view, and (c) is a horizontal sectional view.

FIG. 11 is an exploded perspective view showing an example of housing the modular jack of the embodiment in an outer case.

FIG. 12 is an exploded perspective view of essential parts showing another example of the embodiment.

FIG. 13 is an exploded perspective view showing another example of the embodiment.

FIG. 14 is a plan view showing another example of the fixture used in the embodiment.

15A and 15B show a tying member used in the embodiment, wherein FIG. 15A is a perspective view and FIG. 15B is a perspective view of a usage state.

FIG. 16 shows another example of a fixture used in the embodiment,
(A) is a longitudinal sectional view, (b) is a horizontal sectional view.

17A is a vertical cross-sectional view of a fixture and a removing member used in the embodiment, and FIG. 17B is a bottom view of the removing member.

FIG. 18 is a perspective view showing another embodiment.

FIG. 19 is a perspective view showing still another embodiment.

[Explanation of symbols]

2 electric wires 10 body 11 connection stand 11c retaining hole 12 base 13 Plug insertion port 20 Insert 21 Contact support 21c Detent protrusion 22 terminal block 24 bearing 24a holding dowel 25 guide hole 25a retaining protrusion 26 Guide rib 29 Lock protrusion 29a sliding rib 30 conductor 31 contacts 32 terminal strips 32a Pressure contact slit 32b coating removal unit 33 Connection conductor 40 fixture 40a sliding groove 41 partition 42 separation passage 43 Guide column 43a Locking protrusion 45 guide slit 47 Pressing rib 47b Interlocking protrusion 50 lever 50a hook piece 50b small protrusion 50c pushing part 51 rotation axis 52 Arm Piece 53 Lock groove

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 4-329272 (JP, A) Fudokai 4-76263 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 13/33 H01R 4/24 H01R 9/16 102 H01R 43/01

Claims (10)

(57) [Claims] 1. A housing provided with a connection block having a plug insertion port into which a modular plug is detachably inserted and a terminal block to which an external circuit is connected, and a pressure welding slit projectingly provided on the terminal block and having an open front end. And a plurality of pressure contact type terminal pieces formed in a fork shape, and arranged in the housing so as to make elastic contact with the contacts of the modular plug inserted into the housing through the plug insertion ports, and each terminal piece is electrically connected. A plurality of contacts connected to each other, an aligning member for aligning an electric wire for connecting an external circuit to each terminal piece, and an electric wire holding member and movable in a protruding direction of the terminal piece with respect to the housing. A fixture that enables electrical connection between the electric wire and the terminal strip when the terminal block is moved toward the terminal block, a first position that covers the terminal block, and a second position that opens the terminal block. A lever that is pivotally attached to the housing so as to be able to move up and down between the position and a lever that pushes the fixture toward the terminal block when moving from the second position to the first position; and the lever is at the first position. From the first position to the predetermined intermediate position, the fixing device is moved in a direction in which the fixing device is moved away from the terminal block in association with the movement of the lever by moving from the first position to the predetermined intermediate position. A modular jack characterized by comprising interlocking means for separating the lever from the fixture from the intermediate position to the second position. 2. The housing is joined to the body in such a manner that a body having a connection base and a base extending from the connection base, and a part of the housing inserted into the connection base and the rest of the body being arranged on the base. The modular jack according to claim 1, characterized in that the terminal piece and the contact are held by the insert body. 3. An insert body and a connection base are engaged in a concavo-convex manner on both side surfaces of a portion of the insert body to be inserted into the connection base and a portion of the connection base that faces the both side surfaces of the insertion body. 3. The modular jack according to claim 2, wherein a coupling means for fixing the insertion body to the connection base is formed by. 4. The interlocking means is provided on the lever so as to removably engage with the interlocking projection protruding from the side surface of the fixture and the lever from the first position to the second position. Or a small protrusion that releases the engagement state with the interlocking protrusion by a required force to move the fixing member to the position, and the maximum distance of the fixture from the terminal block is restricted. Item 2. The modular jack according to item 2. 5. A fixing groove is formed on a side surface of the fixing member in a protruding direction of the terminal piece, and a sliding rib protruding from the terminal block meshes with the sliding groove so that the moving direction of the fixing member is changed. The modular jack according to claim 1 or 2, wherein the modular jack is restricted in a protruding direction. 6. A guide slit provided on the connection base in a vertical direction engages a guide slit formed on a surface of the fixture that faces the connection base, whereby the movement direction of the fixture is a protruding direction of the terminal piece. The modular jack according to claim 1 or 2, characterized in that the modular jack is regulated by. 7. The lever is formed with a lock groove, and the terminal block is formed with a lock projection that engages with the lock groove and holds the lever when the lever is located at the first position. The modular jack according to claim 1 or 2. 8. The housing is provided with a bearing for pivotally mounting the lever by a rotary shaft, and at least one of the lever and the bearing is provided with position holding means for locking the lever in the second position. The modular jack according to claim 1 or 2, which is characterized. 9. A lever a first end portion opposite to the pivot portion in the longitudinal direction of the lever to the surface for applying a pushing force when moving from the second position to the first position, stage difference The modular jack according to claim 1 or 2, characterized in that a pushing portion having is formed. 10. The modular jack according to claim 1, wherein the terminal piece is provided with a coating removing portion which is thinner than other portions in the vicinity of the opening of the press contact slit.