JPH08273707A - Modular connector - Google Patents

Abstract

PURPOSE: To provide a modular connector having structure capable of widening an arranging space of a twisted pair wire and capable of surely, easily conducting pressure contact connection of a plurality of wires without use of a jig by only one time pressing of a lever. CONSTITUTION: A housing 1 has a plug connecting part 6 arranged in the front, a terminal board 8 integrally formed in the central part, and an end part 12 integrally formed in the rear of the terminal board 8. A U-shaped recess 22 at the front edge of a pressing body 2 is locked in a shaft 23 of the housing 1 so as to be capable of rotating, and an engaging shaft part 24 at the rear edge is engaged with an engaging part 32 on the back surface of a lever 3. A fulcrum 19 at the rear edge of the lever 3 is locked in the housing 1 so as to be capable of rotating, and when the front edge surface is pressed down, the pressing body 2 is pressed down, and a twisted pair wire is pushed in a slit for pressure contact of a connecting terminal piece 7 with a pressing-in piece 21 of the pressing body 2 for pressure contact connection.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a modular connector.

[0002]

2. Description of the Related Art A modular connector comprises a jack type connector (hereinafter referred to as a modular jack) and a plug type connector (hereinafter referred to as a modular connector).
Just connect the modular connector to the modular jack, you can connect. Conventionally, a modular connector for communication that uses twisted pair wires is provided with a connecting part for inserting and connecting a modular plug in the front part of a housing made of an insulating synthetic resin molded product, and the contacted piece on the side of the modular plug is provided in this connecting part. An elastic cantilever type contact piece for electrical connection is provided, and a pressure contact type connection terminal piece (insulation stripping terminal [IDC terminal]) for pressure contact connection of twisted pair wires is placed on the terminal block provided at the rear. The connection terminal piece and the contact piece are connected by a conductive piece. The connecting terminal piece and the contact piece may be formed by punching out integrally from a metal sheet including the conductive piece, or may be separately formed and mounted on the board and connected by the conductive piece on the board. ing.

[0003]

By the way, as a connection method in the case where a pressure contact type connection terminal piece is used in a conventional communication modular connector, a twisted pair wire is untwisted, and then each twisted pair wire is connected in a corresponding manner. Fit the wire onto the wire introduction port at the upper end of the pressure contact slit of the terminal piece, and then push the wire into the slit with a special jig so that the inner edges of both sides of the slit penetrate into the insulation coating of the wire and the inner core wire is electrically connected. The method of connecting them manually is widely adopted, but in this case a special jig was required.

When no special jig is used, each wire of the twisted pair wire is fitted on the wire introducing port of the corresponding connecting terminal piece, and the housing portion in which the connecting terminal piece is provided is covered with a cap. A method of pushing the wire into the slit by inserting a push-in piece corresponding to each connecting terminal piece provided in the cap has also been proposed, but the cap requires a pushing-in force unless it is covered with a general-purpose tool such as pliers. Was not obtained, and the wire could not be securely pressure-welded.

That is, each of the methods requires tools such as jigs and tools, and there is a problem that the wiring work at the construction site is not easy. Also, in the case of connecting multiple pairs of twisted pair wires, in the method of performing the connection work after untwisting the twisted pair wires as described above, it is necessary to untwist the twisted wires, and each wire is disjointed and connected. It is easy to make a mistake, and since the space for performing the wiring work is narrow, it is difficult to perform the wiring work, and there is a possibility that the transmission characteristics may be deteriorated by untwisting.

The present invention has been made in view of the above-mentioned problems, and an object of the invention of claim 1 is a structure in which a space for disposing twisted pair wires can be widened, and a plurality of wires are pressure-welded without a jig. An object of the present invention is to provide a modular connector which can be connected securely and easily by simply pushing down the lever. In addition to the object of the invention of claim 1, the object of the invention of claim 2 is to provide a modular connector in which the force of pushing down the lever is small and the wiring work can be performed easily.

Further, an object of the invention of claim 3 is to provide a modular structure in which each connecting terminal piece can be widely spaced without increasing the lever pressing force, and each wire can be easily arranged and manufactured easily. To provide a connector. An object of the invention of claim 4 is to provide a modular connector capable of separating each wire of a twisted pair wire and guiding it to a connecting terminal piece without untwisting the twisted wire in advance.

The object of the invention of claim 5 is to easily guide each twisted pair wire to a predetermined position.
An object of the present invention is to provide a modular connector in which misalignment of each twisted pair wire is unlikely to occur and the arrangement of the twisted pair wire is easy to understand. The object of the invention of claim 6 is that
It is to provide a modular connector that prevents the twisted pair wires from coming off after the arrangement.

It is an object of the invention of claim 7 to provide a modular connector capable of preventing the twisted pair wires from coming off even if an unexpected external force is applied to the twisted pair wires in a state where the lever is closed after the connection is completed. . The object of the invention of claim 8 is to provide a modular structure in which the lever can be fixed in a closed state after the connection is completed, and the lever can be prevented from being accidentally opened to disconnect the wires of the twisted pair wires. To provide a connector.

[0010]

In order to achieve the above object, in the invention of claim 1, a plurality of contact pieces for electrically connecting to a connector on a connection side and a plurality of twisted pair wires are electrically connected. A plurality of pressure contact type connection terminal pieces for connecting to each other, a conductive member made of a conductive piece for electrically connecting the contact pieces and the connection terminal pieces that correspond to each other in a one-to-one relationship, and the connected connector on the front side. And a plurality of connecting terminal pieces provided on the rear side of the connecting portion for connecting the connecting portion and the connecting terminal pieces with a predetermined gap in the front-rear direction so that both side openings of the press-contact slit are positioned in a direction orthogonal to the front-rear direction. A housing having an upright terminal block, a presser body having a pressing means for pressing a twisted pair wire into a press-contacting slit formed in each connecting terminal piece on the back surface, and a presser foot arranged on the front surface side of the presser body. Leva pushing down the body The presser body has one end side rotatably engaged with the housing in the vertical direction so as to be opposed to the standing surface side of the connection terminal piece of the terminal block, and the lever is a fulcrum portion provided on the other end side. Is mounted on the front surface side of the pressing body by being vertically rotatably locked by the locking means provided on the housing, and the other end side of the pressing body is moved in the front-rear direction to the engaging portion provided on the back surface. It is characterized in that it is freely engaged and the surface on one end side is used as the force point of the pushing operation.

According to the invention of claim 2, in the invention of claim 1, the distance from the fulcrum portion of the lever to the engaging portion of the lever and the pressing body is shorter than the distance from the fulcrum portion of the lever to the force point of the lever. It has been set. The invention of claim 3 is
In the invention of claim 1 or 2, the distance between the adjacent connection terminal pieces in the front-rear direction of the housing is set within a range in which the pressing means of the pressing body can be inserted into the press-contact slit.

According to a fourth aspect of the present invention, in the first to third aspects, the connection terminal pieces are arranged adjacent to each other so as to correspond to each pair of twisted pair wires to be connected, and on the terminal block. Each pair of connecting terminal pieces is provided with a separation guide that is inserted between the paired wires of the twisted pair wire and separates and guides the paired wires toward the corresponding connecting terminal piece. According to a fifth aspect of the present invention, in the first to fourth aspects, the plurality of twisted pair wires introduced from the rear end of the housing onto the terminal block are separated into the standing positions of the pair of connecting terminal pieces corresponding to the respective twisted pair wires. The guide means for guiding is provided on the terminal block.

According to a sixth aspect of the present invention, in the invention of the fourth or fifth aspect, each of the twisted pair wires or the twisted pair wires separated from the separation guide or the separating means moves toward the tip of the separation guide or the separating means and comes out. It is provided with a retaining means for suppressing the above. According to a seventh aspect of the invention, in the first to sixth aspects of the invention, when the lever is pressed down to at least one of the lever and the pressing body and the lever and the pressing body are closed together with the terminal block upright surface of the terminal block, the terminal block is provided. It is provided with a means for pressing and fixing the sheath covering the plurality of twisted pair wires introduced above with the housing.

According to an eighth aspect of the present invention, in addition to the first to seventh aspects of the present invention, the lever is provided with an engaging means, and the lever is engaged with the engaging means to fix the lever when the lever is in a closed state. The engaged means is provided on at least one of the housing and the pressing body.

[0015]

According to the invention of claim 1, a plurality of contact pieces for electrically connecting to the connected side connector and a plurality of pressure contact type connections for electrically connecting the wires of the plurality of twisted pair wires. A conductive member including a contact piece and a conductive piece electrically connecting the contact piece and the connection terminal piece, which correspond to each other in a one-to-one relationship; a connecting portion for connecting the connected side connector to a front portion; A housing provided on the rear side and having a plurality of connection terminal pieces and a terminal block standing upright at predetermined intervals in the front-rear direction such that both side openings of the press-contact slit are positioned in a direction orthogonal to the front-rear direction. And a pressing body having a pressing means for pressing the twisted pair wire into the press-contact slit formed on each connection terminal piece, and a lever arranged on the front surface side of the pressing body to press down the pressing body. Stand on the terminal block The connecting terminal piece is erected in the front-rear direction of the housing, and the presser body is rotatably engaged with the housing at one end side in a vertical direction so as to be opposed to the standing surface side of the connecting terminal piece of the terminal block. Is provided on the front surface side of the presser body with the fulcrum portion provided on the other end side being rotatably hooked vertically to the hooking means provided on the housing, and the other end side of the presser body is provided on the back surface. Since the front end side surface is used as the force point of the pushing operation, the lever is pushed down for the pressure contact connection of each twisted pair wire to the connecting terminal piece arranged in the front-back direction. Only one time, it can be done reliably and easily, no special tools or jigs are required, the connecting terminal pieces are arranged in the front-back direction of the housing, and the opening direction of the press-contact slit is orthogonal to the front-back direction. Since it is on the side where Arrangement is facilitated arrangement space for twisted pair is greater taken by.

According to the invention of claim 2, in the invention of claim 1, the distance from the fulcrum portion of the lever to the engaging portion of the lever and the pressing body is compared with the distance from the fulcrum portion of the lever to the force point of the lever. Since it has been set to a short length, the force to push down the lever is small, and wiring work can be done easily. Further claim 3
According to the invention of claim 1, in the invention of claim 1 or 2, the distance between the adjacent connection terminal pieces in the front-rear direction of the housing is set within a range in which the pressing means of the pressing body can be inserted into the press-contact slit. Since the distance between the connection terminal pieces can be widened without increasing the force of pushing down the lever, the wires can be easily arranged and the manufacturing becomes easy.

According to the invention of claim 4, claims 1 to 3
In the invention, each connecting terminal piece is arranged adjacent to each other so as to correspond to each pair of twisted pair wires to be connected, and each wire is inserted on the terminal block between the wires forming the pair of twisted pair wires. Since a separation guide is provided for each pair of connection terminal pieces that guides them separately in the direction of the corresponding connection terminal piece, each twisted pair wire is separated and guided to the connection terminal piece without untwisting the twisted pair wires in advance. Therefore, the work time for arranging each wire of the twisted pair wire is shortened, the misplacement is reduced, the workability is improved, and the deterioration of the transmission characteristics is small because the twist is not released, and a modular connector with excellent characteristics is provided. Obtainable.

According to the invention of claim 5, claims 1 to 4
In the invention, since the plurality of twisted pair wires introduced onto the terminal block are provided on the terminal block with guide means for separating and guiding the twisted pair wires to the standing position of the pair of connecting terminal pieces corresponding to each twisted pair wire, each twisted pair wire is predetermined. It is easy to guide to the position of the twisted pair wire, misalignment of each twisted pair wire is less likely to occur, and the arrangement of the twisted pair wire is easier to understand, so that the connection work can be improved and the guide means is erected on the terminal block. Therefore, the guide means can be easily formed.

According to the invention of claim 6, claim 4 or 5
In the invention of claim 1, at least one of the separation guide or the separation means is provided with retaining means for preventing each wire of the twisted pair wire introduced separately or the twisted pair wire from moving toward the tip end of the separation guide or separation means and coming off. , It is possible to prevent the twisted pair wire or each wire from coming off after placement, or to prevent the wire from coming off at the time of press contact connection and making a mistake in press contact connection.Moreover, since the twisted pair wire or each wire that has been placed at one end does not come off, it is easy to perform placement work and placement Work time can be shortened.

According to the invention of claim 7, claims 1 to 6
In the invention of claim 1, when the lever is pushed down on at least one of the lever or the pressing body and the pressing body is closed with respect to the connection terminal one-sided surface of the terminal block, a plurality of twisted pair wires introduced on the terminal block are covered. Even if an unexpected external force is applied to the twisted pair wire with the lever closed after the wire is equipped with a means for pressing and fixing the sheath to the housing, it will affect the pressure contact connection area between each wire and the connection terminal piece. Can be prevented, and the pressure contact connection can be prevented from coming off or coming off.

According to the invention of claim 8, claims 1 to 7
In the invention of 1, while providing the lever with the engaging means,
Since at least one of the housing and the pressing body is provided with the engaged means for engaging the engaging means and fixing the lever when the lever is in the closed state, the lever is fixed in the closed state after the connection is completed. It is possible to prevent the lever from accidentally opening and disconnecting each wire of each twisted pair wire.Also, the lever is engaged because the pressing contact connection of each wire to the connection terminal piece was made by the pressing body. Since it can be understood by doing so, reliable pressure contact connection can be performed, so high reliability can be obtained, and the lever can be opened by disengaging, so reconnection can be easily performed.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a modular jack having an eight-pole structure according to an embodiment of the present invention. As shown in the drawing, the present embodiment is mainly composed of a housing 1, a holding body 2, and a lever 3.

The housing 1 is made of a synthetic resin molded product,
As shown in FIG. 12, eight contact pieces are provided which are provided with a connecting hole 4 having an open front surface and a substantially convex cross section, and which are brought into contact with a contacted piece of a modular plug to be inserted into the connecting hole 4 for electrical connection. 5 is provided in the front portion, and the central portion is provided with a width dimension on both sides which is larger than the width dimension on both sides of the plug connection portion 6, and both side portions project outward from both side surfaces of the plug connection portion 6. The terminal block 8 is integrally provided, and at the rear portion of the terminal block 8, the end portions 12 having the same width dimension on both sides as the width dimension on both sides of the plug connecting portion 6 are integrally provided.

The terminal block 8 is provided with four connecting terminal pieces 7 at predetermined intervals on both sides of the upper surface located inside the position of the vertical plane including both side surfaces of the plug connecting portion 6 and both side surfaces of the end portion 12. The end portions 12 are provided so as to be arranged side by side in the front-rear direction, and the end portions 12 are provided with introduction grooves 10 for introducing the twisted pair wires which are opened in the front-rear surface and the upper surface. The connection terminal piece 7 erected on the upper surface of the terminal block 8 has a slit 13 of a certain length, which is open at both side surfaces and has an open upper end, as shown in FIGS.
Are formed downward from the center of the upper end to form a connection terminal called a pressure contact type or insulation peeling connection terminal (IDC terminal). On the upper surface of the terminal block 8 outside the connecting terminal pieces 7 standing on both sides, a standing wall 14 is formed in parallel with the arrangement direction of the connecting terminal pieces 7 between the rear surface of the plug connecting portion 6 and the front surface of the end portion 12. Y-shaped grooves 14a are formed in the upper end portion of the standing wall 14 at a predetermined interval so as to correspond to the slits 13 of the connecting terminal pieces 7 which are integrally projected so as to extend over the standing wall 14 and outside the standing wall 14. The side surfaces are located slightly inside the positions of both side surfaces of the housing 1 and both side surfaces of the end portion 12.

Further, on the upper surface of the terminal block 8 inside the connecting terminal pieces 7 standing upright on both sides, there is a ridge line on the line passing through the center between the pair of connecting terminal pieces 7, 7 and the opposite acute angle shown in FIG. A separation guide 15 having a V-shaped upper end is integrally provided so as to correspond to the pair of connection terminal pieces 7, 7. In addition, the same height as that of the separation guide 15 is provided on the upper surface of the terminal block 8 between the end surface of the separation guide 15 on the connection terminal piece 7 side and the surface of the standing wall 14 facing the separation terminal 15 through the gap between the pair of connection terminal pieces 7. A separation guide 15a having a sharpness and an upper end formed with an acute angle like the separation guide 15 is provided in a protruding manner. These separation guides 15 and 15a push down the twisted pair wire 11 into the gap formed by twisting the respective wires 11a and 11b of the twisted twisted pair wire 11, thereby expanding the gap with a taper at the upper end and paired wires 11a, 11b for separating the separation guide 1
As shown in FIG. 6, the twisted pair wire 11 has the end surface 15c of the base portion 15b inward of the terminal block 8 as the R surface.
One of a and 11b is guided. The ridgeline at the upper end is inclined downward toward the starting end of the R surface of the end face 15c, and the surfaces on both sides of the ridgeline that is inclined downward are also R surfaces. The lower ends of the inclined surfaces on both sides of the ridgeline at the upper end project from the both side surfaces of the base portion 15b to form the eaves portion 15d, and the tip of the eaves portion 15d is within the width of the slit 13 of the corresponding connection terminal piece 7. And the wires 11a, 1 of the twisted pair wire 11 which are separately arranged below.
A means for preventing upward disengagement of 1b is configured.

Guide walls 17a, 17b for separately arranging four sets of twisted pair wires 11 ... Introduced through the introduction groove 10 of the end portion 12 in the front-rear direction of the central portion of the upper surface of the terminal block 8. 17c are erected in parallel in parallel,
The central guide wall 17b is formed to have a length from the position facing the front opening of the introduction groove 10 of the end portion 12 to the rear surface of the plug connecting portion 6, and divides the terminal block 8 into two parts on both sides. The guide walls 17a and 17c have one end continuously connected to partition walls 18a and 18b, which are erected at positions corresponding to the inner two connection terminal pieces 7 of the four side-by-side connection terminal pieces 7 ... The end is arranged at a position facing the front opening of the introduction groove 10, and the guide wall 17b and the guide wall 17a or 17
The twisted pair wire 11 inserted between the guide wire 17c and the guide wall 17a or 17c is guided by the pair of connecting terminal pieces 7 and 7 located on the plug connecting portion 6 side and is inserted along the outer surface of the guide wall 17a or 17c. 11 is guided to the pair of connecting terminal pieces 7, 7 arranged on the end portion 12 side. The partition wall 18
The corners on the front side of a and 18b are made into inclined surfaces to make it easier to guide the twisted pair wire 11 toward the connection terminal pieces 7, 7. That is, the guide wall 17a ... and the partition wall 18a,
18b serves as a guide means for separately arranging the twisted pair wires 11.

Further, as shown in FIG. 7, eaves 16 for preventing the prevention of NA are provided on both sides of the upper ends of the respective guide walls 17a to 17c, like the separation guides 15 and 15a. The end portion 12 is integrally provided with a latching projection 20 for latching a fulcrum portion 19 of the lever 3, which will be described later, at the upper rear ends of both side surfaces. The hooking protrusion 20 is formed by a protrusion having a substantially semicircular cross section formed so that the curved surface faces the terminal block 8 side.

The presser body 2 is arranged above the terminal block 8 and is made of a synthetic resin molded product such as polycarbonate, and has connection terminals provided on the terminal block 8 of the housing 1 on both sides of the lower surface. The push-in piece 21 inserted from the wire introduction port 13a formed by widening upward at the upper end opening of the slit 13 of the piece 7 is integrally projecting downward at a predetermined interval so as to correspond to each connection terminal piece 7. Each side piece 20a has a downwardly extending side piece 20a, and each side piece 20a has a U-shaped recess 22 having an upward opening on a protruding piece 20b protruding forward from the front end of the pressing piece 21. are doing.

The U-shaped recess 22 is provided with a shaft 23 protruding from the rear upper corners of both side surfaces of the plug connecting portion 6 of the housing 1, and the pressing body 20 is rotatable in the vertical direction about the shaft 23. And make up the pivotal branch. Further, an inverted U-shaped concave groove 20c is formed at a position corresponding to the slit 13 of each connection terminal piece 7 on the lower end edge of each side piece 20a.

Further, a substantially cylindrical engagement shaft portion 24 is formed in both sides at the upper end of the rear portion of the pressing body 20, and shafts 25 on both side surfaces of the engagement shaft portion 24 are provided so as to project. Further, a sheath pressing portion 26 for pressing the sheath 9 covering the four twisted pair wires 11 ... Introduced into the introduction groove 10 of the end portion 12 is provided in the lower center of the engaging shaft portion 24.

The lever 3 is made of a synthetic resin molded product such as polycarbonate and is arranged so as to cover the pressing body 20 from above. The side piece 30a hanging from both sides is located outside the side piece 20a of the pressing body 2. The side piece 30a is provided with a guide hole 27 which is a long hole extending from the substantially central portion toward the rear end direction. The guide holes 27 allow the shafts 25 projecting from both sides of the engaging shaft portion 24 of the pressing body 2 to be inserted from the inside so as to be movable and rotatable.

In the center of the back surface, as shown in FIGS. 9 to 11, the shaft 2 of the pressing body 2 inserted into the guide hole 27 of the pressing body 2.
5 is moved to the front end of the guide hole 27, the pressing body 2
Curved surface portion 32 with which the peripheral surface of the engaging shaft portion 24 is rotatably engaged
a is provided at the front end portion, and the sliding surface 32 on which the peripheral surface of the engaging shaft portion 24 slides when the shaft 25 moves in the rear end direction of the guide hole 27.
An engaging portion 32 is formed in which b is provided from the curved surface portion 32a toward the rear end direction of the lever 3. An entry corner surrounded by a fulcrum portion 19 projecting rearward from the lower rear end of the side piece 30a and a rear end surface of the side piece 30a is matched with an R surface of a hooking protrusion 20 provided on the end portion 12 of the housing 2. The concave curved surface portion 30b is formed. Further, the leg pieces 28 are integrally provided so as to project downward from the lower ends of the front portions of the side pieces 30a.
At the lower end of the locking claw 2 which is detachably locked and locked in the recesses 33 formed at the lower ends on both sides of the terminal block 8 of the housing 1.
9 are provided.

Each of the connecting terminal pieces 7 is electrically connected to the corresponding contact piece 5 of the plug connecting portion 6 by a conductive piece 31 embedded in the terminal block 8 as shown in FIG. The relationship between the pin number of the jack and the connection terminal piece 7 is as illustrated. The conductive piece 3 shown in FIG.
Those that intersect with other conductive pieces 30 are electrically crossed in the terminal block 8 so that they are electrically insulated from each other. The contact pieces 5, the conductive pieces 30, and the contact connection pieces 7 are formed by punching out metal pieces. The contact pieces 5, the conductive pieces 30,
The contact connecting piece 7 constitutes a conductive member.

In connecting the twisted pair wires 11 to the modular connector of the present invention, first, the lever 3 is connected.
The shaft 25 of the presser body 2 is inserted into the guide hole 27 of FIG. On the other hand, on the housing 1 side, the twisted pair wires 11 ... Are introduced onto the terminal block 8 through the introduction groove 10 of the end portion 12 and guided by the guide walls 17a ... And the partition walls 18a, 18b as shown in FIG. The respective twisted pair wires 11 ... Are separately arranged in the direction in which the corresponding connection terminal pieces 7 are located, and the wires 11a and 11b forming each twisted pair wire 11 are separated by the separation guides 15.
15a to separate the ends of the respective wires 11a and 11b from the wire introduction port 13a of the connection terminal pieces 7 and the groove 1 of the upright wall 14.
4a so as to cover it. In this arrangement, the separation guide 1 is prevented from being pulled out upward by the wires 11a and 11b.
5 eaves portion 15d prevents each guide wall 17a
The eaves portion 16 of ... Prevents the twisted pair wires 11 from coming off upward.

Next, with the U-shaped recesses 22 provided on both sides at the front end of the presser body 2 assembled in the lever 3, engaged with the shafts 23 on both sides of the plug connecting portion 6 as shown in FIG. As the fulcrum portion 19 provided at the rear end of the lever 3 is rotated together with the lever 3 by utilizing the curved surface of the lower end surface and elasticity, as shown in FIG.
And set it in the set state. In this state, as shown in the drawing, the shaft 25 of the pressing body 2 moves to the front end of the guide hole 25 and the peripheral surface of the engaging shaft portion 24 of the pressing body 2 engages with the engaging portion 3 of the lever 3.
The second curved surface portion 32a is brought into contact with and engaged with the second curved surface portion 32a.

Next, when the upper surface of the front end of the lever 3 (X portion in FIG. 10) is pushed in the direction of the arrow with the finger, the concave curved surface portion 30b of the fulcrum portion 16 of the lever 3 moves along the peripheral surface of the latching protrusion 20. As a result, the lever 3 is rotated to the left in the figure around the fulcrum portion 16, and the engagement shaft portion 24 of the presser body 2 engaged with the engagement portion 32 is pushed down. That is, in the lever 3, the X portion pressed by the finger is the force point, the fulcrum portion 16 is the fulcrum, the engagement point between the push engagement portion 32 and the engagement shaft portion 24 is the action point, and the distance from the fulcrum to the action point is the fulcrum point. Is sufficiently shorter than the distance from the power point to. Therefore, even if the force applied to the lever 3 is small, the pressing body 2 can be pushed down with a sufficient force.

With the rotation of the lever 3, the pressing body 2 uses the shaft 25 of the housing 1 inserted in the recess 22 as a force point at the engagement position between the engagement shaft portion 24 and the engagement portion 32 of the lever 3. If it is a fulcrum, it rotates to the right in the figure. Along with this rotation, a concave groove 20c provided at the lower end of the side piece 20a of the pressing body 2
The wires 11a and 11b of the twisted pair wires 11 ... Which protrude outward from the groove 14 of the standing wall 14 are fitted therein, and the push-in piece 21 is fitted into the wire introduction port 7a of the connection terminal piece 7, and at the recess 21a at the lower end thereof. Slit 1 through wire 11a or 11b
It will be pushed into 3. That is, in the pressing body 2, the lower end of the pushing piece 21 serves as the point of action. Now, the twisted pair wire 11 is pushed into the slide groove 13 by the pushing piece 21.
The line 11a or 11b is such that the inner edges on both sides of the slide groove 13 bite into the coating and come into pressure contact with the core wire. That is line 1
The core wire 1a or 11b is electrically connected to the connection terminal piece 7. When the lever 3 is further pushed down, the engaging claws 29 of the leg pieces 28 on both sides ride on both side surfaces of the terminal block 8 due to the elasticity of the leg pieces 28, and the shaft 25 of the pressing body 2 further moves toward the rear end of the guide groove 27. To do. Then, the engaging claws 29 fall into the recesses 33 at the lower ends of the both sides of the terminal block 8 and the recesses 33 are formed.
Will be engaged. That is, in this state,
2 (or FIG. 4), both side pieces 20 of the pressing body 2
The lower ends of a and 20a come into contact with the upper surfaces of both sides of the terminal block 8, the shaft 25 moves to the rear end of the guide groove 27, and the lower end of the pushing piece 21 of the pressing body 2 causes the twisted pair wire 11 to reach the lower end of the slit 13. The wires 11a and 11b are pushed in. In this state, the leg pieces 2 on both sides of the lever 3 are pushed.
The engaging claws 29, 29 of 8, 28 are recesses 3 on both sides of the terminal block 8.
It is held by engaging the levers 3 and 33 and locking the lever 3 to the housing 1. Therefore, carelessly lever 3
Can be prevented from being opened, and as a result, accidental disconnection between the wires 11a and 11b of the twisted pair wire 11 and the connection terminal pieces 7 and 7 can be prevented. And twisted pair wire 11
Since the sheath 9 covered with ... is pressed between the bottom of the introduction groove 10 of the end portion 12 and the sheath pressing portion 26 of the pressing body 2, an external force in any direction such as a tensile force or a force in the pushing direction is applied to the sheath 9. Even if the force is applied, it does not affect the connection part between each wire 11a or 11b of the twisted pair wire 11 and the connection terminal piece 7, and disconnection due to an external force can be prevented.

In the above embodiment, the separation guides 15 and 15a are used.
, And the guide walls 17a are provided, but only one of them may be provided. A locked portion that locks the locking claw 29 provided on the leg piece 28 of the lever 3 may be provided on the pressing body 2 side.

[0039]

According to the first aspect of the present invention, a plurality of contact pieces for electrically connecting to the connected side connector and a plurality of pressure contact type connections for electrically connecting the wires of the plurality of twisted pair wires. A terminal piece, a conductive member made of a conductive piece that electrically connects the contact piece and the connection terminal piece that correspond to each other in a one-to-one relationship, a connecting portion that joins the connected-side connector to the front portion, and a rear portion of the joining portion. A housing having a terminal block provided on the side thereof and vertically erected at a predetermined interval in the front-rear direction such that the openings on both sides of the press-contact slit are positioned in a direction orthogonal to the front-rear direction. , A pressing body having a pressing means for pressing the twisted pair wire into a press-contact slit formed on each connecting terminal piece on the back surface, and a lever arranged on the front surface side of the pressing body to press down the pressing body. Is one side Is rotatably engaged in the vertical direction with the connection terminal piece of the terminal block facing the standing surface side, and the lever is provided with the fulcrum portion provided on the other end side in the vertical direction to the latching means provided on the housing. It is rotatably hooked and placed on the front surface side of the presser body, and the other end side of the presser body is movably engaged in the front-rear direction with an engaging part provided on the back surface to push the one end side surface. Since it is the power point of, the pressure contact connection of each wire of the twisted pair wire to the connection terminal pieces arranged in the front-rear direction can be performed securely and easily by pressing the lever once, and special tools and jigs can be used. Since the arrangement of the connecting terminal pieces is in the front-rear direction of the housing and the opening direction of the pressure welding slit is on the side orthogonal to the front-rear direction,
There is an effect that the space for disposing the twisted pair wires on the terminal block is large and the disposition is easy.

According to the invention of claim 2, in the invention of claim 1, the distance from the fulcrum portion of the lever to the engaging portion of the lever and the pressing body is shorter than the distance from the fulcrum portion of the lever to the force point of the lever. Since it is set, the force to push down the lever is small, and there is an effect that wiring work can be done easily. Furthermore, the invention of claim 3 is the same as the invention of claim 1 or 2,
Since the distance between the adjacent connecting terminal pieces in the front-rear direction of the housing is set within the range in which the pushing means of the pressing body can be inserted into the press contact slit, the connecting terminal pieces can be connected without increasing the force of pushing down the lever. Since it is possible to widen the intervals, there is an effect that each line can be easily arranged and the manufacturing becomes easy.

According to a fourth aspect of the present invention, in the first to third aspects, the connection terminal pieces are arranged adjacent to each other so as to correspond to each pair of twisted pair wires to be connected, and on the terminal block. Since twisting pair wires are twisted in advance, a separation guide is provided between each pair of twisted pair wires to guide each wire toward the corresponding connecting terminal piece. Without twisting, each wire of the twisted pair wire can be separated and guided to the connecting terminal piece, which shortens the time for arranging each wire of the twisted pair wire, reduces the misplacement, improves the workability, and solves the twist. As a result, there is little deterioration in transmission characteristics, and a modular connector with excellent characteristics can be obtained.

According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, a guide for separating and guiding a plurality of twisted pair wires introduced on the terminal block to the standing position of a pair of connecting terminal pieces corresponding to each twisted pair wire. Since the means is provided on the terminal block, it is easy to guide each twisted pair wire to a predetermined position, misalignment of each twisted pair wire is unlikely to occur, and the arrangement of the twisted pair wire is easy to understand, thus improving the wiring work. In addition, the guide means can be easily formed because the guide means is erected on the terminal block.

According to a sixth aspect of the present invention, in the fourth or fifth aspect of the invention, each of the twisted pair wires or the twisted pair wires separated and introduced into at least one of the separation guide or the separating means moves toward the tip end of the separation guide or the separating means. Since there is a retaining device to prevent the cable from coming off, it is possible to prevent the twisted pair wire or each wire from coming off after placement, or to prevent the wire from coming off at the time of crimping connection and making a mistake in crimping connection. Alternatively, since each line cannot be pulled out, there is an effect that the arrangement work can be facilitated and the arrangement work time can be shortened.

According to a seventh aspect of the present invention, in the first to sixth aspects of the invention, when the lever is pushed down to at least one of the lever and the pressing body and the lever and the pressing body are closed with respect to the connection terminal half-standing surface of the terminal block. , Even if an inadvertent external force is applied to the twisted pair wire with the lever closed after the connection is completed with a means for holding and fixing the sheath covering the multiple twisted pair wires introduced on the terminal block with the housing. ,
There is an effect that it is possible to prevent the pressure-welded connection portion between each wire and the connection terminal piece from being affected, and to prevent the pressure-welded connection from coming off or coming off.

According to an eighth aspect of the present invention, in addition to the first to seventh aspects of the present invention, the lever is provided with an engaging means, and the lever is engaged with the engaging means to fix the lever when the lever is in a closed state. Since the engaged means to be provided is provided on at least one of the housing and the presser body, it is possible to fix the lever in the closed state after the connection is completed, and it is possible to prevent the lever from being opened accidentally and disconnecting each wire of each twisted pair wire. It is possible to prevent it, and it is possible to confirm that the press-fitting connection of each wire to the connection terminal piece has been made by the pressing body, and it can be confirmed by the engagement of the lever that the reliable press-connecting can be performed. Since it is possible to open the lever by disengaging it, there is an effect that reconnection can be easily performed.

[Brief description of drawings]

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

FIG. 2 is a partially cutaway top view of the above.

FIG. 3 is a sectional view taken along line B-B ′ of FIG. 2 above.

FIG. 4 is a sectional view taken along the line A-A ′ of FIG. 2 above.

FIG. 5 is a perspective view in which a part of the standing wall is omitted.

FIG. 6 is a perspective view of the above separation guide.

FIG. 7 is a perspective view of the guide wall of the above.

FIG. 8 is an explanatory view of a wiring relation between the conductive piece and the connection terminal piece in the above.

FIG. 9 is a side view when the lever of the same is opened.

FIG. 10 is a side view showing the same lever set.

FIG. 11 is a side view when the above-mentioned lever is closed.

FIG. 12 is a front view of the above-mentioned lever when the lever is closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Presser body 3 Lever 6 Plug connection part 7 Connection terminal piece 8 Terminal block 12 End part 19 Support point part 20 Latching protrusion 22 U-shaped recess 23 Shaft 24 Engagement shaft part 32 Engagement part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiko Amano 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Hiroo Inoue, 1048, Kadoma, Kadoma City, Osaka

Claims (8)

[Claims] 1. A plurality of contact pieces for electrically connecting to a connected connector, a plurality of pressure contact type connection terminal pieces for electrically connecting each wire of a plurality of twisted pair wires, and one-to-one with each other. With a conductive member made of a conductive piece that electrically connects the corresponding contact piece and the connection terminal piece, a connecting portion for connecting the connected side connector to the front portion, and a plurality of connecting portions provided on the rear side of the connecting portion, Formed on each connection terminal piece and a housing having a terminal block that stands up at a predetermined interval in the front-rear direction such that both sides of the press-contact slit are positioned in a direction orthogonal to the front-rear direction. It consists of a presser body with a pushing means for pushing the twisted pair wire into the pressure contact slit, and a lever arranged on the front side of this presser body to push down the presser body.One end of the presser body is perpendicular to the housing. Rotate in the direction Is engaged with the terminal block and is disposed opposite to the standing surface side of the connection terminal piece of the terminal block, and the lever has a fulcrum portion provided on the other end side that is vertically rotatably engaged with a retaining means provided on the housing. Is placed on the front side of the presser foot,
A modular connector characterized in that the other end side of the presser body is movably engaged in the front-rear direction with an engagement portion provided on the back surface, and the surface on one end side is used as a force point of the pushing operation. 2. The distance from the fulcrum portion of the lever to the engaging portion between the lever and the pressing body is set shorter than the distance from the fulcrum portion of the lever to the force point of the lever. Modular connector. 3. The distance between the connection terminal pieces adjacent to each other in the front-rear direction of the housing is set within a range in which the pushing means of the pressing body can be inserted into the press-contact slit. Modular connector. 4. The connection terminal pieces are arranged adjacent to each other so as to correspond to each pair of twisted pair wires to be connected, and are inserted between the wires to be paired with the twisted pair wires on the terminal block. 4. The modular connector according to claim 1, further comprising: a separation guide provided for each pair of connection terminal pieces for separating and guiding each of the connection terminal pieces in the direction of the corresponding connection terminal piece. 5. A guide means is provided on the terminal block to guide a plurality of twisted pair wires introduced on the terminal block to the standing position of a pair of connecting terminal pieces corresponding to each twisted pair wire. The modular connector according to items 1 to 4. 6. At least one of the separation guide or the separation means is provided with retaining means for preventing each twisted pair wire or the twisted pair wire introduced into the separation guide or the separation means from moving out toward the tip end of the separation guide or the separation means. The modular connector according to claim 4 or 5, characterized in that: 7. A plurality of twisted pair wires introduced onto the terminal block are covered when the lever is pushed down on at least one of the lever or the pressing body and the lever and the pressing body are closed together with the connecting terminal one-sided surface of the terminal block. 7. The modular connector according to claim 1, further comprising means for pressing and fixing the sheath to be fixed to the housing. 8. An engaging means is provided on a lever, and an engaged means for engaging the engaging means and fixing the lever when the lever is closed is provided on at least one of a housing and a pressing body. The modular connector according to claim 1, wherein the modular connector is provided.