JPH08315875A - Branching adapter for covered core wire - Google Patents

Abstract

PURPOSE: To provide a branching adapter in which the number of a constituent part is small and which can be assembled without being connected by solder. CONSTITUTION: A contact member 17 provided with a contact spring 18 connected to the contact of a modular plug 50 and an insertion part 26 connected to the part of a core wire 47 of a covered core wire 45 is assembled into a housing 10. The covered core wire 45 is positioned upon a connection base 23 of the housing 10 and is pressed down by a pushing part 40 of a cover 12, thereby breaking through an insulating cover 46 of the covered core wire 45, so that the insertion part 26 is brought into contact with the core wire 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch adapter for a coated core wire, and more particularly to a branch adapter used for branching connection with a coated core wire.

[0002]

2. Description of the Related Art Coated core wires have been conventionally used for connecting telephones. The coated core wire is formed by coating a conductor wire for transmitting a signal with an insulating coating, and various kinds of core wires are used according to their applications. Modular plugs are connected to both ends of such a core wire for coating, and the modular plugs are inserted into sockets of telephones, repeaters, or distributors for connection to perform telephone wiring.

[0003]

Generally, when branching the wiring of a telephone connected by such a coated core wire, a distributor is used, and a modular plug connected to one end of the coated core wire is connected to the distributor. While connecting to the input side,
The branching is performed by a distributor having two or more sockets.

Although an adapter for distributing by directly conducting to the core wire portion of the coated core wire without using a distributor has been proposed, a conventional adapter of this kind has a very complicated structure and the number of parts for assembly is large. However, it was time-consuming and expensive to assemble.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a coated core wire branching adapter having a simple structure, a small number of parts, and an advantageous cost. To do.

[0006]

SUMMARY OF THE INVENTION According to the present invention, an outer casing of a socket into which a plug is inserted is constituted by a housing, and a connection base for arranging a covered core wire to be connected is continuously provided in the housing, and a plug of a contact member is provided. The one end that contacts the contact of the contact member is arranged in the socket, and the sharp insertion portion formed at the other end of the contact member is arranged so as to face the connection base so as to pierce the covered core wire to cover the housing. When the cover is combined with the housing as described above, the pressing core provided on the cover causes the piercing part of the contact member to break the insulating coating of the coated core wire and come into contact with the core wire. It is designed to be pressed against.

A linear groove is formed in the bottom of the housing, and a portion of the lead connecting the one end of the contact member, which comes into contact with the contact of the plug, and the insertion portion is housed in the linear groove. You may

A base may be attached to the bottom side of the housing so as to protect the contact member housed in the linear groove, and the cover may be attached to the housing from the side opposite to the base.

The contact member may be made of a conductive metal, and the conductive metal may be punched and bent to form the contact member.

Another aspect of the present invention is to provide a first connection base and a second connection base for arranging a first coated core wire and a second coated core wire, which are connected to each other, in a housing, and to provide a contact member. The first insertion portion formed at one end faces the first connection base, and the second insertion portion formed at the other end faces the second connection base, so that the housing First and second pressing portions are provided on the cover that is combined with the housing so as to cover the first contact portion and the second insertion portion of the contact member, respectively. The first coating core wire and the second coating are respectively provided by the first pressing portion and the second pressing portion so as to break the insulating coatings of the first coated core wire and the second coated core wire on the table and connect with the core wire. The core wire and the core wire are pressed.

The first connection base and the second connection base are T
It may be arranged in a letter shape.

[0012]

According to the present invention, when the coated core wire to be connected is arranged on the connection base of the housing and the cover is attached so as to be combined with the housing, the pressing portion of the cover is inserted into the insertion portion of the connection member. And presses the coated core wire, whereby the insulating coating of the coated core wire is broken and the inserted portion of the contact member comes into contact with the core wire. Therefore, by inserting the plug into the socket provided in the housing, the core wire connected to the plug comes to be connected to the core wire on the connection base.

According to another aspect of the present invention, when the coated core wires are respectively arranged on the first connection base and the second connection base provided on the housing and the cover is combined with the housing so as to cover the housing, the cover is formed. The first pressing portion and the second pressing portion, which are provided on the
The first coating core wire and the second coating core wire are ruptured and come into contact with the core wire.

[0014]

1 to 11 show a first embodiment of the present invention. As shown in FIG. 1, the coated core wire branching adapter of this embodiment comprises a housing 10, a base 11, and a cover 12. Each of these is made of a synthetic resin, for example, a molded body of polycarbonate resin.

The housing 10 which constitutes the most important part of the branch adapter will be described with reference to FIGS. 1, 2, and 3. The branch adapter 10 is formed in a substantially rectangular parallelepiped shape, and its front end side is substantially formed. A socket 16 formed of a rectangular opening is formed. A plurality of contact springs 18 (for example, four contact springs) of contact members (see FIG. 6) are arranged in parallel with each other so as to face the bottom of the socket 16.

These contact springs 18 are guided from the lower surface of the socket 16 to a linear groove 19 formed along the opening on the front end side. As shown in FIGS. 2 and 3, the tip end of the contact spring 18 is held by a slit-shaped guide holding portion 20 provided in the inner portion of the socket 16. In addition, a linear groove 21 is formed on the bottom of the housing 10 so as to receive a portion of the contact spring 18 on the base end side.
Are formed.

A connection base 23 is integrally formed on the rear side of the housing 10. The upper surface of the connection base 23 is a concave groove, and a plurality of, for example, four slits 24 are provided so as to face the concave groove.
And is formed as shown in FIG. These slits 24 are adapted to receive the base end portion 25 of the contact point member 17 shown in FIG. 6, and moreover, the insertion portion 26 of the contact point member 17 is projected onto the connection base 23 (see FIG. 8). ).

An engagement groove 29 is formed in a portion of the connection base 23 on the base side of the connection portion. A ridge 30 that is received by the engagement groove 29 is provided on the base 11. The base 11 has a substantially box-like shape with an open top, and covers the bottom side of the housing 10. Further, the front surface side of the base 11 has a notch 31 which is opened widely, and constitutes a connection port of the socket 16.

A locking claw 33 is formed on the outer side of the base 11, and a locking hole 34 is formed in the rear plate. Further, guide protrusions 35 are formed on both sides of the base 11 on the back side, respectively, to guide a coated core wire 45 described later.

Next, the cover 12 mounted on the upper part of the housing 10 will be described. The cover 12 has an open lower end and locking holes 38 on both sides thereof.
Is formed so as to receive the locking claw 33 of the base 11. Further, a locking claw 39 is provided on the back side of the cover 12 (see FIG. 8), and the locking claw 39 is engaged with the locking hole 34 on the back side of the base 11. . A pressing portion 40 is provided inside the cover 12 so as to project downward. The pressing portion 40 is arranged at a position substantially facing the connection base 23 of the housing 10. Further, the cover 12 is formed with a notch 41 for drawing out the coated core wire 45 at a side portion of the cover 12 on the lower end side.

Next, the contact member 17 used in combination with the housing 10 will be described with reference to FIGS. The contact member 17 is formed by punching out a phosphor bronze plate as shown in FIG. 4, and a contact spring 18 is slenderly extended from a base end portion 25 at a lower end portion thereof. Further, a pair of sharp insertion portions 26 are formed on the upper portion of the base end portion 25.

After the contact member 17 is punched out as shown in FIG. 4, the contact spring 18 is bent at a right angle to the base end 25. Then, after this, the contact spring 18 is further assembled in the housing 10 and bent backward by using a dedicated jig in a state where the tip of the contact spring 18 is inclined.

Next, the operation of assembling and connecting the branch adapter having the above structure will be described. As shown in FIG. 5, the contact member 17 in which the contact spring 18 is bent is assembled into the housing 10. At this time, the base end portion 25 of the contact member 17 is connected to the connection base 23 of the housing 10.
While being inserted into the slit 24, the proximal end portion of the contact spring 18 is inserted into the linear groove 21 provided at the bottom of the housing 10. Then, the tip end side portion of the contact spring 18 is curved using a dedicated jig so that it is guided by the linear groove 19 extending from the front surface to the upper surface of the housing 10. As a result, as shown in FIG. 8, the contact member 17 is assembled in the housing 10 and the contact spring 18 is attached to the housing 1.
It comes into the socket 16 of 0.

In such a state, the housing 10 is combined with the base 11. That is, this housing 10
The housing 10 is assembled into the base 11 as shown in FIG. 7 so that the engaging groove 29 of FIG. At this time, the socket 1 of the housing 10 is formed by the notch 31 provided in front of the base 11.
6 comes into contact with the front opening. Base 11
The inner surface of the bottom of the housing is provided with a ridge corresponding to the linear groove 21 formed in the bottom of the housing 10.
The contact member 17 in the linear groove 21 is pressed.

In this state, the coated core wire 45 is arranged on the connection base 23 of the housing 10 as shown in FIG. The coated core wire 45 may have the same number of core wires 47 as the number of the contact members 17 incorporated in the housing 10.

After this, as shown in FIGS. 7 to 9, the cover 12 is attached from above to the housing 10 combined with the base 11. At this time, the covering core wire 45 on the connection base 23 is pressed by the pressing portion 40 provided on the cover 12 so as to project downward. Then the coated core wire 45
A portion of the insulating coating 46 on the outer peripheral side of the contact member 17 is ruptured by the insertion portion 26 of the contact member 17 provided so as to project above the connection base 23 as shown in FIGS.
A core wire 47 made of a twisted wire and penetrating into the covered core wire 45.
Contact with. Therefore, each core wire 47 of the coated core wire 45 is connected to the contact member 17 via the insertion portion 26.

A cover 12 mounted on the housing 10.
The locking hole 38 receives the locking claw 33 of the base 11, and as shown in FIG. 8, the locking claw 39 provided on the back side of the cover 12 engages with the locking hole 38 of the base 11. As a result, the cover 12 is connected to the housing 10 and the base 11. The covered core wire 45 connected to the contact member 17 on the connection table 23 is pulled out to both sides through the notch 41 for pulling out on both sides of the cover 12.

Therefore, as shown in FIG. 10, by inserting a modular plug 50 connected to the tip of another covered core wire 49 into the socket 16 of such a branch adapter, the contacts of this modular plug 50 are inserted. Will be connected to the contact spring 18 of the contact member 17. Therefore, each core wire of such a coated core wire 49 is connected to the core wire 47 of the coated core wire 45 via the contact of the modular plug 50 and the contact spring 18, respectively. Therefore, as shown in FIG. 11, it becomes possible to connect the coated core wire 49 so as to branch from the coated core wire 45 extending in the lateral direction. In this case, the connection is automatically achieved without manually removing the insulating coating of the coated core wire 45.

The adapter of the above embodiment has four core wires 4
However, the number of poles of the core wire 45 and the adapter and the plug 50 connected to the core wire 45 does not necessarily have to be 4 poles, and the number of poles is 1 to 5 poles. The number of poles can be any of the above.

As described above, in the branch adapter according to this embodiment, the branch adapter having the socket 16 into which the modular plug 50 can be inserted is coupled to the middle portion of the coated core wire 45, and the core wire 45 is sandwiched between the modular adapters. It is a structure that allows the addition of jacks. This structure is made possible by the contact member 17 integrally including the contact spring 18 at the connecting portion of the jack portion and the piercing portion 26 electrically connected to the covered core wire 45.

With such a structure, the branch adapter can be constructed with an extremely small number of parts, and it is easy to manufacture without a soldering work, the production cost can be reduced, and the reliability can be improved. A highly versatile branch adapter.

Next, a second embodiment will be described with reference to FIGS. As shown in FIG. 12, this embodiment comprises a housing 55, a base 56, and a cover 57. Therefore, the basic structure is similar to that of the first embodiment.

The housing 55, which is a main component, has a first
The connection base 61 and the second connection base 62 are provided so as to be integrally connected to each other. These pair of connection boards 6
1, 62 are arranged so as to have a T-shape. Then, at the end of the first connection base 61 and the second connection base 62
Engaging grooves 64 are provided on both sides of the connecting portion with the side end of the base 56, and a protrusion 65 for receiving the engaging groove 64 is formed on the base 56.

13 and 14 show a contact member 71 used in such an adapter. Contact member 71
Has a structure in which a pair of base portions 72 and 73 are integrally connected by a lead portion 74. That is, the phosphor bronze plate is punched as shown in FIG. 13, and the lead portion 74 is bent at a right angle at the connecting portion of the base portion 73 to be formed. A first piercing portion 75 and a second piercing portion 76 are formed on the upper ends of these base portions 72 and 73, respectively.

Such a contact member 71 is adapted to be incorporated in the housing 55 shown in FIG. 12, and the first base portion 72 of the contact member 71 is incorporated in the slit of the first connection base 61 and the second The base 73 of the second connection base 6
It is designed to be installed in the slit of 2. The piercing portions 75, 76 provided so as to project from the upper ends of the bases 72, 73 project from the upper ends of the first connecting base 61 and the second connecting base 62, respectively.

A first pressing portion 81 and a second pressing portion 82 are provided inside the cover 57 mounted on the upper part of the housing 10 and on the lower surface thereof, respectively, the first connection base 61 and the second connection base. It is formed corresponding to the table 62. These pressing portions 81 and 82 are similar to the connection bases 61 and 62,
They are arranged in a T shape.

Next, the connecting operation of the adapter having the above configuration will be described. First connection base 61 of housing 55
The tip of the first coated core wire 67 is arranged on the top. Further, the intermediate portion of the second coated core wire 68 is arranged on the second connection base 62. In this state, the base 56 is assembled on the lower side of the housing 10 and the cover 5 is attached on the upper side.
Combine 7

As a result, as shown in FIG. 15, the first pressing core 81 of the cover 57 connects the first coated core wire 67 to the piercing part 75 on the first connection base 61, respectively. The second coated core wire 68 is pressed by the second pressing portion 82 of the cover 57, and the core wire comes into contact with the second piercing portion 76. Therefore, the first coated core wire 67 and the second coated core wire 68 are connected via the corresponding contact members 71.

At this time, the first coated core wire 67 and the second coated core wire 67
As shown in FIG. 16, the coated core wires 68 are arranged in a T-shape. With such a configuration, the branched connection of the coated core wire can be performed without using the modular jack, and the branched connection of the coated core wire with a smaller number of parts can be achieved.

[0040]

As described above, according to the present invention, the outer casing of the socket into which the plug is inserted is composed of the housing, the connection base for arranging the coated core wire to be connected is connected to the housing, and one end of the contact member is connected. It is placed in the socket so as to come into contact with the contact of the plug, and the sharp insertion portion formed at the other end is placed so as to face the connection base so as to pierce the coated core wire and to cover the housing with the housing. A pressing part is provided on the cover to be combined, and the coated core wire on the connection base is pressed against the contact member by the pressing part so that the insertion part of the contact member breaks the insulating coating of the coated core wire and connects with the core wire. The present invention relates to a branched adapter for a coated core wire.

Therefore, according to the present invention, the connection can be achieved only by arranging the covered core wire to be connected on the connection base, mounting the cover on the connection core wire and pressing the cover with the pressing portion. Moreover, such a branch adapter not only has a small number of parts but also requires no soldering work, which makes it possible to provide a branch adapter which is easy to manufacture and has high reliability.

A linear groove is formed in the bottom of the housing, and the lead portion connecting between the one end contacting the contact of the plug of the contact member and the insertion portion is housed in the linear groove. According to this, it becomes possible to reliably hold the contact member assembled in the housing.

According to the construction in which the base is attached to the bottom side of the housing so as to protect the contact member housed in the linear groove, and the cover is attached to the housing from the side opposite to the base. The contact member facing the bottom side of the can be reliably protected by the base.

According to the structure in which the contact member is formed by punching out the conductive metal plate and bending the contact member, the portion of the contact spring connected to the contact of the plug and the piercing portion connected to the coated core wire can be integrally formed. It becomes possible and contributes to the reduction of the number of parts.

Another aspect of the present invention is to provide a housing with a first connection base and a second connection base for arranging the first coated core wire and the second coated core wire, which are connected to each other, respectively, and to one end of the contact member. The formed piercing part is made to face the first connection base, and the second piercing part formed at the other end is made to face the second connection base to cover the housing. The cover to be combined is provided with the first and second pressing portions, and the first piercing portion and the second piercing portion of the contact member are provided with the first coated core wire on the first and second connection bases, respectively. The first cover so as to break the insulating coating of the second coated core wire and come into contact with the core wire
Of the coated core wire and the second coated core wire of the first and second
The pressing portion is used for pressing.

Therefore, according to this structure, the first coated core wire and the second coated core wire connected to each other are arranged on the first connection base and the second connection base of the housing, respectively.
All you have to do is connect the cover from above. As a result, the connection between the first coated core wire and the second coated core wire is achieved without using the modular plug.

The first connection base and the second connection base are connected to each other by T
According to the configuration in which the first covered core wire and the second covered core wire are arranged in the T shape, the connection is performed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a branch adapter according to a first embodiment.

FIG. 2 is a plan view of a housing.

3 is a sectional view taken along line AA in FIG.

FIG. 4 is a plan view of a punched contact member.

FIG. 5 is a perspective view of a contact member in which a root-side portion of a base end portion is bent.

FIG. 6 is an external perspective view of the contact member with the contact spring bent.

FIG. 7 is an exploded perspective view showing a connecting operation.

FIG. 8 is a longitudinal sectional view of the same.

FIG. 9 is a vertical cross-sectional view showing a connection of a contact member by a piercing portion.

FIG. 10 is an external perspective view showing the connection of modular plugs.

FIG. 11 is a plan view of the connected state.

FIG. 12 is an exploded perspective view of a branch adapter according to a second embodiment.

FIG. 13 is a plan view of a contact member used in this branch adapter in a punched state.

FIG. 14 is an external perspective view of a contact member in which a lead portion is bent.

FIG. 15 is an external perspective view showing a connected state.

FIG. 16 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Housing 11 Base 12 Cover 16 Socket 17 Contact member 18 Contact spring 19 Linear groove (top surface, front surface) 20 Guide holding part 21 Linear groove (bottom part) 23 Connection block 24 Slit 25 Base end part 26 Insert part 29 Engagement Grooves 30 Protrusions 31 Cuts 33 Locking claws 34 Locking holes 35 Guide protrusions 38 Locking holes 39 Locking claws 40 Pushing parts 41 Notches for pulling out 45 Coated core wires 46 Insulation coating 47 Core wires 49 Coated core wires 50 Modular plugs 55 Housing 56 Base 57 Cover 61 First Connection Base 62 Second Connection Base 64 Engagement Groove 65 Protrusion 67 First Covered Core Wire 68 Second Covered Core Wire 71 Contact Member 72, 73 Base 74 Lead Part 75 Insertion Part (First) 76 Insertion part (second) 81 First pressing part 82 Second pressing part

Claims (6)

[Claims] 1. A housing which constitutes an outer casing of a socket into which a plug is inserted, a connection base which is connected to the housing and in which a covered core wire to be connected is arranged, and one end of which contacts a contact of the plug. And a contact member facing the connection base so that a sharp insertion portion formed at the other end is inserted into the socket, and the insertion portion of the contact member insulates the coating core wire. A cover having a pressing portion for pressing the coated core wire on the connection base against the contact member so as to break the coating and contact the core wire, and a cover combined with the housing so as to cover the housing, Branch adapter for coated core wire. 2. A linear groove is formed in a bottom portion of the housing, and a portion of a lead connecting between one end of the contact member contacting a contact of a plug and the piercing portion is the linear groove. The branch adapter for the coated core wire according to claim 1, wherein the branch adapter is accommodated in the. 3. A base is attached to a bottom side of the housing so as to protect a contact member housed in the linear groove, and the cover is attached to the housing from a side opposite to the base. The branched adapter of the coated core wire according to claim 2, wherein 4. A branch adapter for a coated core wire according to claim 1, wherein the contact member is formed by punching and bending a conductive metal plate. 5. A housing having a first connection base and a second connection base for arranging a first coated core wire and a second coated core wire, which are connected to each other, respectively, and a first housing formed at one end. A contact member whose insertion part faces the first connection base and a second insertion part formed at the other end faces the second connection base; and a first insertion of the contact member. Coating so that the first portion and the second insertion portion break the insulating coatings of the first coated core wire and the second coated core wire on the first connection base and the second connection base, respectively, and connect with the core wire. A branch adapter for a coated core wire, comprising: a cover having a first pressing portion and a second pressing portion for pressing the core wire and the second coated core wire, the cover being combined with the housing so as to cover the housing. 6. The branch adapter for a coated core wire according to claim 5, wherein the first connection base and the second connection base are arranged in a T shape.