JPH0328023B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a telephone modular jack that is attached to a wiring equipment mounting frame and used as an embedded type or an exposed type.

[Background Art] In this type of telephone modular jack that has been conventionally provided, a modular block 2 and a terminal block 3 are incorporated in a casing 1.
When connecting, as shown in Figure 6,
Lead wire 8 led out from modular block 2
This is done by wiring the terminal 0 inside the casing 1 and soldering it to the terminal block 3. That is, as shown in FIG. 7, a contact pin 5 is provided on the modular block 2 formed of a resin molded product, and one end of a lead wire 80 is connected to the base of the contact pin 5 by crimping and caulking, and this lead wire 80 is attached to the casing. 1
The contact pin 5 of the modular block 2 is electrically connected via the lead wire 80 to the telephone line 82 which is connected to the terminal block 3 by the screw 81. be.
However, in this case, the lead wire 80 is connected to the casing 1.
Since the wiring has to be done inside the terminal block, it takes time and effort to connect the modular block 2 and the terminal block 3, which poses a problem in that it is difficult to automate the assembly.

For this purpose, the inventors have developed a modular block 2.
A part of the block is made up of a wiring board 6, so that the contact pins 5 of the modular block 2 and the terminal block 3 can be electrically connected without the need to wire lead wires inside the casing 1. I devised it. That is, as shown in FIGS. 8 to 10,
A modular block 2 is configured by a wiring board 6 on which a circuit 8 is formed, a contact pin block 7 on which a plurality of contact pins 5 are provided, and an inner frame 18 on which a plug insertion hole 22 is provided, By inserting a connecting piece 19 formed by making a part of the contact pin 5 protrude from the bottom surface of the contact pin block 7 into a through hole 8b formed at one end of the circuit 8 and soldering it, the connecting piece 19 is formed. The contact pin block 7 is directly fixed to the wiring board 6 with each contact pin 5 electrically connected to each circuit 8 via the contact pin block 7, and the inner frame 18 is further inserted into the contact pin block 7.
The modular block 2 is assembled by attaching it to the wiring board 6. After the terminal block 3 formed by the terminal frame 31 and the locking spring 32 is installed in each terminal storage chamber 53 of the body 11 of the casing 1, a modular module is inserted onto the body 11 from above the terminal block 3. Assembling is carried out by arranging the block 2, covering the block 2 with the cover 12 from above, and joining the body 11 and the cover 12. During this assembly, the connection protrusion 38 protruding from the terminal block 3 is inserted into the through hole 8a formed at the other end of the circuit 8 of the wiring board 6, and the connection protrusion 38 is inserted into the through hole 8a. Solder 20 is attached to the piece 38 to connect the two. In this way, the terminal block 3 can be connected to the wiring board 6 without the need for wiring using lead wires, and the contact pins 5 can be electrically connected to the terminal block 3 via the circuit 8 of the wiring board 6. It is.

However, in this case, when assembling the modular block 2 into the body 11 of the casing 1, it is necessary to insert the connecting protrusion 38 of the terminal block 3 into the through hole 8a of the wiring board 6. Positioning accuracy is required, and furthermore, soldering 20 is required between the through hole 8a and the connecting protrusion 38, which also requires time and effort for assembly. In addition, in this device, the contact pin block 7 protrudes from the upper surface of the wiring board 6, and the terminal block 3 protrudes from the lower surface of the wiring board 6, increasing the overall height and allowing them to be housed compactly within the casing 1. There is also the problem of not being able to do so.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its purpose is to facilitate assembly, enable automation of assembly, and also enable compact formation. Our purpose is to provide telephone modular equipment.

[Disclosure of the Invention] The telephone modular jack according to the present invention has a plug insertion opening 4 opened in the casing 1.
A telephone modular jack is constructed by incorporating a modular block 2 and a terminal block 3 into a casing 1 into which a plug inserted through the terminal block 2 is removably connected. The terminal block 3 is attached to the wiring board 6 on the same surface on which the contact pin block 7 is attached, and the contact pin block 7 is attached to the wiring board 6.
A boss portion 10 protrudes from the casing 1 to electrically connect the contact pin 5 provided on the terminal block 3 to the terminal block 3 via the circuit 8 of the wiring board 6, and to fit into the opening of the wiring device mounting frame 9 for installation. The contact pin block 7 of the modular block 2 and the terminal block 3 are arranged inside the terminal block 2, and the terminal block 3 and the contact pin 5 are connected by the wiring board 6. In addition, the contact pin block 7 and the terminal block 3 are made to protrude from the same side of the wiring board 6 so as to be housed in the boss portion 10 of the casing 1. The above objects have been achieved, and the present invention will be described in detail below with reference to Examples.

As shown in FIG. 1, the telephone modular jack includes a casing 1 consisting of a body 11 and a cover 12, a modular block 2 and a terminal block 3 housed within the body 11, and a plug insertion slot 4 of the casing 1. The casing 1 and the door 26 are arranged
6 is made of an insulating material such as synthetic resin, and in particular, the body 11 is made of thermoplastic resin. The external dimensions of the casing 1 are set to those corresponding to one module of a standardized wiring equipment module so that it can be attached to a ready-made wiring equipment mounting frame 9. Outer flange pieces 13 extend from both left and right sides of the body 11, and locking recesses 14 are formed in each outer flange piece 13, respectively. On the other hand, outer flange pieces 17 extend from both left and right ends of the cover 12, and connecting leg pieces 16 each having a hook 15 at the outer end extend from each outer flange piece 17. It has a connecting leg piece 16
The body 11 and the cover 12 can be connected by locking the hook 15 in the locking recess 14. Receiving step portions 51 are formed protruding from both sides of the body 11, which has an open front surface. Also, in the center of the front surface of the cover 12 is a boss portion 1 whose back surface is open.
0 is formed to protrude, and a plug insertion opening 4 is formed in the center of the boss portion 10. A pair of locking pawls 62 are protruded from the distal edges of the left and right outer flange pieces 17 of the cover 12, and a locking hole 63 is formed at the base of the outer flange pieces 17. The plug insertion opening 4 has a substantially rectangular shape, and has a notch 64 formed in a two-step staircase shape.

The modular block 2 is composed of a wiring board 6, a contact pin block 7, and a middle frame 18, and the contact pin block 7 and the middle frame 18 are mainly made of an insulating material such as synthetic resin. A comb blade is provided in the middle frame 18 to separate the contact pins 5, which will be described later. The contact pin block 7 is provided with a plurality of contact pins 5 made of spring wire inserted into the base, and a portion of each contact pin 5 protrudes as a connection piece 19 from the bottom surface of the contact pin block 7. be. Wiring board 6
is formed, for example, as a printed wiring board, and this wiring board 6 is provided with the same number of circuits 8 as the contact pins 5 provided in the contact pin block 7 on its back surface in a pattern that does not cause crosstalk. Through holes 8a and 8b are formed in the wiring board 6 at one end and the other end of each circuit 8, respectively. Then, by inserting the connecting piece 19 into the through hole 8b of each circuit 8 and attaching it with solder 20, the contact pin block is connected with each contact pin 5 electrically connected to each circuit 8 via the connecting piece 19. The modular block 2 can be constructed by directly attaching and fixing the contact pin block 7 to the surface of the wiring board 6 and inserting the inner frame 18 into the contact pin block 7. In other words, the plug insertion hole 2 formed in the inner frame 18
Contact pins 5 are located inside the casing 1, and when the plug is inserted through the plug insertion opening 4 opened on the front surface of the casing 1, each contact pin 5 comes into elastic contact with the corresponding contact of the plug and is electrically connected to each other. It is designed so that it will be done. Although the wiring board 6 is generally formed of a printed wiring board, it may also be formed by inserting a metal plate or the like constituting the circuit 8 into a resin molded board.

The terminal block 3 consists of a U-shaped terminal frame 31 made of conductive material and a locking spring 32 mounted inside the terminal frame 31. As shown in FIG. Slit 33 in one leg piece of
A locking piece 34 is provided in the center of the other leg piece by cutting and raising the terminal frame 3.
A connecting protruding piece 38 is provided on the other leg piece of 1.
On the other hand, the locking spring 32 has a shape in which a pair of locking pieces 36a, 36b are formed by bending a sheet metal, and each locking piece 36a, 36b has a slit 3.
7a and 37b are formed. And terminal frame 3
1, the proximal ends of the slits 37a and 37b are locked by the locking pieces 34, and the locking spring 32 is held in the terminal frame 31 so that it can be made into a block. A frame 31 and a locking spring 32 are configured to form an integrated terminal block 3.

Thus, the terminal block 3 is disposed on the surface of the wiring board 6 at positions on both sides of the contact pin block 7, and the connecting protrusions 38 of the terminal block 3 are inserted into the through holes 8a of the wiring board 6 to apply the solder 2.
By attaching 0, the contact pin 5 is fixed to the surface of the wiring board 6 while connected to the circuit 8, and the contact pin 5 is electrically connected to the terminal block 3 via the circuit 8 of the wiring board 6. can be connected to.
The embodiment shown in FIG. 2 shows a six-pole, six-core telephone modular jack, in which six terminal blocks 3 are attached to a wiring board 6. Then, with the terminal block 3 attached to the wiring board 6 on the same side as the contact pin block 7 and integrated with the modular block 2, the inner frame 18 is placed over the contact pin block 7 and protruded from the wiring board 6. The modular block is inserted into the casing 1 by inserting and housing the contact pin block 7 and the terminal block 3 into the boss portion 10 of the cover 12, and then placing the body 11 on the back side of the cover 12 and joining them. 2 and terminal block 3 can be assembled. Therefore, there is no need to wire lead wires when assembling the modular block 2 and the terminal block 3 into the casing 1, and moreover, the modular block 2 and the terminal block 3 are integrated in advance via the wiring board 6. Because of this structure, the number of components to be assembled into the casing 1 can be reduced, and the contact pins 5 of the modular block 2 and the terminal block 3 are connected to the circuit board 6.
Since they are electrically connected in advance through the casing 1, there is no need for soldering when assembling them into the casing 1, and as a result, the assembly becomes easy and the automated configuration of the assembly becomes easy. Further, by automating the assembly in this way, the assembly method can be made constant, and as a result, the reliability of the connection between the modular block 2 and the terminal block 3 can be increased. Further, since the contact pin block 7 and the terminal block 3 are provided so as to protrude from the same surface of the wiring board 6, the contact pin block 7 and the terminal block 3 are provided so as to protrude from the same surface of the wiring board 6, so that the contact pin block 7 and the terminal block 3 are provided so as to protrude from the same surface of the wiring board 6. Can be packed compactly,
Moreover, this contact pin block 7 and terminal block 3
is a boss portion 10 that protrudes from the casing 1 in order to attach the casing 1 to the wiring device mounting frame 9.
Therefore, the telephone modular jack can be formed compactly without increasing the size of the casing 1.

The body 11 also includes leg pieces of the terminal frame 31 of each terminal block 3 and a locking piece 36, as shown in FIG.
A wire insertion port 57 is provided at a corresponding position between the tip ends of the wires a and 36b, and a release piece 58 is formed integrally with the body 11 adjacent to each wire insertion port 57 in a cut-and-raised shape. ing. The release piece 58 is provided at a position where its tip can come into contact with the lock piece 36b on the rear side of the lock spring 32, and is flexible back and forth with respect to the body 11. A through hole 40 is provided in the wiring board 6 at a position opposite to each wire insertion port 57 and each release piece 58, and the tip of the release piece 58 is inserted into the terminal block 3 side through this through hole 40. Further, an electric wire is inserted into the terminal block 3 side through this through hole 40. When connecting a telephone line, insert the telephone line into the wire insertion slot 57, and the locking pieces 36a, 36
A telephone line is held between the terminal frame 31 and the terminal frame 31, and when disconnecting the telephone line, the release piece 58 is pushed forward, and the tip of one of the release pieces 58 locks the rear side. By bending the piece 36b away from the leg piece of the terminal frame 31, the telephone line can be easily removed. By configuring the terminal block 3 as a quick connection terminal and integrally forming the release piece 58 for disconnecting the wire in the body 11, the screw 81
There is no need to turn the switch to connect or disconnect the telephone line, and there is no need to use an independent release button to disconnect the telephone line, resulting in a reduction in the number of parts.

Incidentally, a door 26 is attached to the plug insertion opening 4 as shown in FIG. 3 in order to prevent dirt and the like from entering the casing 1 from the plug insertion opening 4 when no plug is inserted. As shown in FIGS. 1 and 2, the door 26 is composed of a pair of upper and lower door bodies 41 and 42, and is located between the front surface of the modular block 2 and the rear surface of the opening periphery of the plug insertion slot 4 of the cover 12. It is designed to be installed within the space of. An operating piece 43 projects from the lower door body 42, and the width of the operating piece 43 is set to be approximately equal to the width of the minimum width of the notch 64 of the plug insertion port 4. The protruding dimension of is set to such an extent that it protrudes slightly from the front surface of the cover 12. In this way, the upper door body 41 closes half of the plug insertion opening 4, and the lower door body 42 closes the other half of the plug insertion opening 4. When inserting the plug into the plug insertion opening 4, the plug is brought into contact with the operating piece 43 and the operating piece 43 is pushed.
Move 2 upward. The operation piece 43 is the upper door body 41
When the upper door body 41 comes into contact with the lower edge of the plug, the upper door body 41 also moves upward together with the lower door body 42, the plug insertion opening 4 is opened, and the plug can be inserted into the plug insertion opening 4. Conversely, when the plug is removed from the plug insertion port 4, both the door bodies 41 and 42 fall downward under their own weight, and the plug insertion port 4 is automatically closed. In other words, when inserting a plug, the operation of opening the door 26 and the introduction of the plug into the plug insertion slot 4 are performed in a series of operations, and conversely, when the plug is removed, the door 26 is opened.
is automatically closed.

As shown in FIG. 4, the telephone modular jack constructed as described above can be attached to a ready-made wiring device mounting frame 9 to which a wiring device module can be attached. The wiring device mounting frame 9 is made of synthetic resin and has a size such that, for example, three wiring device modules can be held vertically side by side. As shown in FIGS. 4 and 5, a pair of locking holes 73 are bored in the left vertical frame 72 of the wiring device mounting frame 9 at positions corresponding to the mounting positions of each wiring device module, and The frame 74 has a right vertical frame 74 at a position corresponding to the mounting position of each wiring equipment module.
Side frames 75 are provided spaced apart from each other. A release piece 76 is protruded from the center of each side frame 75, and a holding hole 77 surrounded by the right vertical frame 74, side frame 75, and release piece 76 is formed on both sides of the release piece 76. . Then, the opening 4 of the wiring equipment mounting frame 9
5. Telephone modular jack casing 1
The casing 1 is held in the wiring device mounting frame 9 by fitting the boss portion 10 of the casing 1 and inserting the locking claw pieces 62 protruding from the left and right sides of the casing 1 into the locking hole 73 and the holding hole 77. It is designed so that it will be done. To remove the casing 1 from the wiring device mounting frame 9, use a jig such as the tip of a screwdriver to press the release piece 76 to widen the distance between the right vertical frame 74 and the side frame 75. The engagement with the stopper piece 62 is released. A horizontally elongated mounting hole 78 for mounting to a switchbox and a screw hole 79 for screwing a decorative plate are formed at both upper and lower ends of the wiring fixture mounting frame 9. Wiring equipment mounting frame 9
There are also metal ones available, and in the case of the metal wiring device mounting frame 9, a locking claw that can be inserted into the locking hole 63 provided in the casing 1 is formed on the inner edge of the opening. The casing 1 is held by plastically deforming a portion of the wiring device mounting frame 9 so that the retaining claw is inserted into the retaining hole 63.

[Effects of the Invention] As described above, the present invention includes a modular block including a wiring board and a contact pin block attached to one side of the wiring board, and a terminal block is attached to the wiring board on the same side as the contact pin block. At the same time, since the contact pins provided on the contact pin block and the terminal block are electrically connected through the circuit of the wiring board, the wiring board can be installed with the contact pins and the terminal block electrically connected through the circuit of the wiring board. The modular block and terminal block can be integrated through the casing, and there is no need to wire lead wires or solder when installing the modular block or terminal block inside the casing. The number of members can be reduced, and as a result, assembly is easy and automation of assembly is facilitated. In addition, the contact pin block and terminal block of the modular block attached to the same side of the wiring board are arranged in the boss part protruding from the casing in order to fit into the opening of the wiring equipment mounting frame and install it. The contact pin block and terminal block protrude from the same side of the wiring board and can be assembled compactly, and the contact pin block and terminal block utilize a boss protruding from the casing to attach the casing to the wiring equipment mounting frame. The casing can be housed within the casing, and can be made compact without increasing the size of the casing.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a reduced exploded perspective view of the same as the above, Fig. 3 is a reduced perspective view of the same as the above, and Fig. 4 shows wiring of a telephone modular jack. FIG. 5 is a reduced perspective view showing the wiring device mounting frame used in the above, and FIG. 6 is a sectional view showing a conventional example.
FIG. 7 is a sectional view showing a modular block of the conventional example, and FIG. 8 is a reduced exploded perspective view of another conventional example.
FIG. 9 is a partially cutaway front view of the conventional example, and FIG. 10 is a perspective view of the conventional example. 1 is the casing, 2 is the modular block, 3
4 is a terminal block, 4 is a plug insertion slot, 5 is a contact pin, 6 is a wiring board, 7 is a contact pin block, 8 is a circuit, 9 is a wiring equipment mounting frame, and 10 is a boss portion.

Claims (1)

[Claims] 1 A telephone modular jack constructed by incorporating a modular block and a terminal block into a casing, to which a plug inserted through a plug insertion opening opened in the casing is removably connected, and the modular block is connected to the wiring. The terminal block is formed by a board and a contact pin block attached to the wiring board, and the terminal block is attached to the wiring board on the same surface on which the contact pin block is attached, and the contact pins provided on the contact pin block and the terminal block are connected through the circuit of the wiring board. electrically connect,
1. A telephone modular jack, characterized in that a contact pin block and a terminal block of the modular block are disposed within a boss portion protruding from a casing for fitting and mounting into an opening of a wiring equipment mounting frame.