JPH0339968Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a connection device for a plug-in telephone, and is a connection device for a plug-in telephone that allows connection between fixed connectors to be freely changed without any special operations. Regarding.

[Conventional technology]

A conventional plug-in telephone connection device consists of a plurality of fixed connectors connected to a telephone line and a mobile connector connected to the telephone.The fixed connectors and the mobile connector connect the telephone line and the telephone electrically. It connects to the According to such a connection device for a plug-in telephone, when using the telephone, fixed connectors can be installed in multiple convenient locations, the telephone can be moved to an easily accessible location as needed, and the fixed connector An electrical connection is established between the mobile terminal and the mobile connector, and telephone calls can be made. As described above, according to the plug-in telephone connection device, the telephone can be used at any desired location, so the telephone can be used conveniently.

By the way, in such a connection device for a plug-in telephone, if you try to move the telephone to a place where another fixed connection device is installed during a call, and once the electrical connection between the fixed connection device and the mobile connection device is cut off, A phenomenon occurs in which telephone exchanges become outdated and call lines are disconnected.

In order to avoid such a phenomenon, in the case of the above-mentioned plug-in telephone connection device, at least one other telephone should be installed, and while the telephone in use is off the hook, the other telephone should be connected to the desired telephone. It is necessary to move to a location, use the connector to make an electrical connection, and make a call.

It should be noted that the above-mentioned phenomenon of switching equipment becoming outdated can also be avoided by using other methods. In other words, in the case of a direct-connected parent-child phone,
This can be prevented by taking off the handset of the other telephone before hanging up the handset of the telephone in use. In addition, in the case of a switchable parent-child telephone, this can be prevented by first taking off the receiver of the other telephone before switching to another telephone during a call.

[Problem that the invention attempts to solve]

In the case of the above-mentioned conventional technology, when attempting to move to another location during a call, there is an inconvenience in that two or more telephones are required and the receiver of the other telephone must be disconnected first. Ta. Also, if you use a phone other than the one you are using to make a call,
There was also the problem that the content of the calls could be intercepted.

The present invention was made in order to solve the above-mentioned problems of the prior art, and it connects a plug-in telephone set that uses only one telephone and prevents exchanges from being duplicated even when the fixed connector is being moved. The purpose is to provide equipment.

[Means for solving problems]

A plug-in telephone connection device according to the present invention which solves the above problems is composed of a fixed connector connected to a telephone line and a movable connector connected to the telephone. In a connecting device for a plug-in telephone that electrically connects a telephone line and a telephone, the device is provided with an opening/closing means that disconnects the electrical connection when the movable connector makes the electrical connection and connects the electrical connection when the movable connector breaks the electrical connection. A secondary fixed connector, an opening/closing means that disconnects when an electrical connection is made with the movable connector and connects when an electrical connection is disconnected with the movable connector, and a music box sound to the other party when a predetermined condition is met. a music box for listening to music, and a parent fixed connector equipped with a timing circuit for duplicating an exchange of a telephone line when a specific condition is met, the parent fixed connector and the slave fixed connector being connected to the telephone line. The opening/closing means in each fixed connector are connected in series, forming a circuit in which a DC loop is formed with respect to the exchange when these are connected, and the formation of this DC loop causes a predetermined When the condition is satisfied, a circuit is formed in which the music box operates, and when each of the opening/closing means maintains a connected state for a certain period of time, a specific condition is satisfied, and the timing circuit is activated to disconnect the DC loop. It is characterized by forming a circuit that performs the following steps.

[Effect]

According to the present invention configured as described above, when the electrical connection between the fixed connector and the movable connector is cut off, the opening/closing means in the fixed connector connects, regardless of whether a call is being made or received. This results in a circuit configuration in which a DC loop is formed for the exchange. By forming this DC loop, a predetermined condition is satisfied, so that the music box operates.

Therefore, according to the present invention, during a call, you can freely move to a place where there is a fixed connection other than when you are on a call, and even while you are moving, the exchange does not become outdated, so the call line can be disconnected. There is no need to worry. In addition, since the music box is activated while the phone is being moved, the person on the other end of the call can hear the music box sound, and the phone can be protected from damage if the electrical connection of each connector is accidentally disconnected. It can also be used as a warning sound.

On the other hand, the timing circuit starts operating when a DC loop is formed, and if the DC loop continues to be formed for a certain period of time, that is, when the opening/closing means is in contact, it is determined that a specific condition has been met. Since this is detected and the DC loop is disconnected, it is possible to prevent the exchange from being held invalid.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIGS. 1 and 2 are for the purpose of explaining an embodiment of the present invention.

FIG. 1 is a perspective view showing a connecting device for a plug-in telephone according to the present invention.

The embodiment shown in FIG. 1 is constructed as follows. That is, the telephone lines ₁ and ₂ are connected to a parent jack 1 as a parent fixed connector and a slave jack 2 as a slave fixed connector. A plug 3 as a movable connector is connected to a connection line connected to a telephone (not shown). Parent jack 1 or child jack 2 as each of the above fixed connections
and plug 3 as a mobile connection device to connect the telephone line.
₁ , ₂ and a telephone are electrically connected.

The main jack 1 is provided with a music box speaker 4 on its upper surface as shown in the figure, and when the plug 3 is inserted into the main jack 1 and an electrical connection is established with the plug 3, the plug 3 is disconnected from the main jack 1. A button 6 is provided that operates an opening/closing means (described in detail later) that is connected when the electrical connection is cut with the plug 3 by pulling it out from the plug. Similarly, the slave jack 2 has an upper surface as shown in the figure, and when the plug 3 is inserted into the slave jack 2 and an electrical connection is made with the plug 3, the plug 3 is disconnected.
A button 6 is provided to operate an opening/closing means (to be described in detail later) which is connected when the plug 3 is disconnected from the jack 2 by pulling it out from the slave jack 2. These parent jack 1 and child jack 2 are connected by a wiring 7.

FIG. 2 is a circuit diagram showing an embodiment of the present invention.

In FIG. 2, the main jack 1 includes telephone line contacts J ₁₁ and J ₁₂ , the opening/closing means 10, an electronic music box 11 that allows the other party to hear music etc. when a predetermined condition is met, and a specified a timing circuit 12 for duplicating a telephone line exchange when the following conditions are met; a rectifier circuit 13 consisting of diodes D ₁ , D ₂ , D ₃ , D ₄ ; A DC power supply 14 that supplies power to the music box 11 and the timing circuit 12, and a diode 15
, a resistor 16, and a relay contact r. The timing circuit 12 is a detection operation circuit that starts operating when a DC loop is formed as a specific condition, and excites the excitation coil RL of the relay to disconnect the DC loop when the DC loop continues to be formed for a certain period of time. 120.
The opening/closing means 10 is configured such that when the plug 3 is inserted into the main jack 1, the button 6 is pressed down and the button 6 is turned off, and when the plug 3 is removed from the main jack 1, the button 6 is raised and turned on. It's summery.

The slave jack 2 has telephone line contacts J ₂₁ and J ₂₂
and the opening/closing means 20. The opening/closing means 20 is configured so that the button 6 is connected to the plug 3 by inserting the plug 3 into the slave jack 2.
When the plug 3 is pulled out from the slave jack 2, the button 6 rises and becomes connected.

The telephone line contacts J _{21 and} J 22 of the plug 3 and the telephone line contacts J ₂₁ and J ₂₂ of the slave jack 2 are telephone line contacts.
Connected to ₁ and ₂ . Further, the opening _/ closing means ₂₀ connects the terminals r ₁₁ ,
Connected to _r12 .

In the parent jack 1, one electrode of the opening/closing means 10 is connected to the terminal _r11 . This terminal r ₁₂ is connected to the negative electrode of the DC power supply 14 and also to one terminal of the rectifier circuit 13 . The other electrode of the switching means 10 is a diode 1
5, and is also connected to the + terminal of the rectifier circuit 13 via a relay contact r and a resistor 16. The AC terminals of the rectifier circuit 13 are connected to telephone line contacts J ₁₁ and J ₁₂ .
The + terminal and - terminal of the rectifier circuit 13 are also connected to the electronic music box 11. A timing circuit 12 is connected to this electronic music box 11. One power input terminal of this electronic music box 11 is connected to the anode of the diode 15,
The other power input terminal is connected to the positive pole of the DC power supply 14.

With this circuit configuration, the opening/closing means 1
0. When both switching means 20 are connected, the following DC loop is formed via the AC terminals of the rectifier circuit 13 connected to the telephone lines ₁ and ₂ .
That is, the positive terminal of the rectifier circuit 13, the resistor 16, the relay contact r, the opening/closing means 10, the terminal r ₁₁ , the wiring 7, the terminal r ₂₁ , the opening/closing means 20, the terminal r ₂₂ , the wiring 7,
A closed circuit is formed between the terminal _r12 and the negative terminal of the rectifier circuit 13, so that a DC loop is formed with respect to the exchange. When this DC loop is formed, a predetermined condition is established, and the electronic music box 11 includes the positive electrode of the DC power supply 14, the electronic music box 11, the diode 15, the opening/closing means 10, the terminal _r11 , the wiring 7, and the terminal _r21.・Opening/closing means 20 ・Terminal r ₂₂・Wiring 7 ・Terminal r ₁₂・DC power supply 1
A power supply circuit with the negative pole of 4 is formed, and the circuit configuration is such that the electronic music box 11 operates. Further, when both the opening/closing means 10 and the opening/closing means 20 maintain a closed state for a certain period of time, a specific condition is established, so the detection operation circuit 120 of the timing circuit 12 detects this and activates the relay. Excite the excitation coil RL and connect the relay contact r
The circuit configuration is such that the DC loop is disconnected by opening the circuit.

The operation of the embodiment configured in this way will be explained.

When the plug 3 of the telephone is connected to the parent jack 1 and the phone is moved to the slave jack 2 during a call, when the plug 3 is removed from the parent jack 1, the opening/closing means 10
becomes connected. Then, the following DC loop will be created. That is, the + terminal of the rectifier circuit 13, the resistor 16, the relay contact r, and the opening/closing means 1.
0・Terminal r ₁₁・Wiring 7・Terminal r ₂₁・Opening/closing means 20・
A DC loop is formed including the terminal _r22 , the wiring 7, the terminal _r12 , and the negative terminal of the rectifier circuit 13. Here, even if the polarities of the telephone line contacts J ₁₁ and J ₁₂ are reversed, the DC loop is formed in the same manner as described above by the action of the rectifier circuit 13.

When a DC loop is formed in this way, the positive electrode of the DC power supply 14, the electronic music box 11 (timing circuit 12), the diode 15, the opening/closing means 10, the terminal r ₁₁ , the wiring 7, the terminal r ₂₁ , the opening/closing means 20, the terminal
A power supply circuit consisting of _r22 , wiring 7, terminal _r12 , and the negative pole of the DC power supply 14 is formed, and power is supplied to the electronic music box 11 and the timing circuit 12, respectively. As a result, the electronic music box 11 starts operating, and the music box sound is transmitted to the telephone lines ₁ and ₂ via the rectifier circuit 13.
At the same time, a music box sound is also output from the speaker 4.

Subsequently, when the plug 3 is inserted into the slave jack 2, the opening/closing means 20 is disconnected, and the electronic music box 1 is disconnected.
1 and the timing circuit 12 are cut off, and the operations of the electronic music box 11 and the timing circuit 12 are stopped. At this time, since the plug 3 is inserted into the slave jack 2 while the telephone receiver remains off, the exchange is held by the direct current loop of the telephone even if the opening/closing means 20 is disconnected. Then, when the call ends and you hang up the phone, everything returns to normal. The above behavior is
The same applies when moving from child jack 2 to parent jack 1.

If the plug 3 is accidentally left unplugged from the main jack 1 or the secondary jack 2, the music box sound of the electronic music box 11 will continue and act as a warning sound. Further, when the opening/closing means 10 and the opening/closing means 20 both maintain a closed state for a certain period of time, a specific condition is established, so the detection operation circuit 1 of the timing circuit 12
20 detects this and excites the excitation coil RL of the relay to open the relay contact r. As a result, the + terminal of the rectifier circuit 13, the resistor 16, the relay contact r, the opening/closing means 10, the terminal r ₁₁ , the wiring 7, the terminal r ₂₁ , the opening/closing means 20, the terminal r ₂₂ , the wiring 7, the terminal
The DC loop such as r ₁₂ and the - terminal of the rectifier circuit 13 is disconnected due to the opening of the relay contact r.
This will prevent the exchange from being held invalid.

This will return to normal if you hang up the telephone receiver and insert the plug 3 into either the parent jack 1 or the slave jack 2.

According to the above embodiment, by installing the slave jack 2, etc. in a necessary place, you can freely connect to the slave jack 2, etc. in another location even when a call is in progress (it may be either making or receiving a call). They can be replaced, and there is no need to worry about disconnecting calls as in the past. Further, according to this embodiment, the telephone
Since it only requires a stand, there is no need to worry about wiretapping. In addition, according to this embodiment, the electronic music box 11 is provided with a speaker 4, and when the plug 3 is not inserted into the jack, the music box sound is played through the speaker 4.
In addition, the timing circuit 12 operates to cut off the DC loop, thereby preventing the exchange from being held in an invalid state.
Furthermore, in this embodiment, since a simple device is simply incorporated into the parent jack 1 or the child jack 2,
This can be realized without significantly increasing the number of parts of such a device.

In the above embodiment, for one parent jack 1,
Although the description has been made with one child jack 2, the present invention is not limited to this, and a plurality of child jacks 2 may be provided for the parent jack 1. Further, in the above embodiment, the button 6 is configured to protrude from the surface of the jack, but the present invention is not limited to this, and it is possible to provide a protrusion on the side of the plug 3 and provide the button 6 inside the jack. The button 6 may be pressed by pressing the button 6. Further, in the above embodiment, the opening/closing means 10 or the opening/closing means 20 is mechanically opened/closed, but for example, a magnet may be provided in the plug 3 and the opening/closing means 10 of the parent jack 1 or the opening/closing means 20 of the child jack 2 may be opened and closed mechanically. It may also be configured with a reed switch.

Further, in the above embodiment, the main jack 1 or the child jack 2 and the plug 3 are used, but the present invention is not limited to this and any combination thereof can be used.

[Effect of idea]

As described above, according to the present invention, during a call, you can freely move to a place where there is a fixed connection device other than the one where the call is being made, and even while you are moving, the exchange equipment does not become obsolete. Never runs out. Further, according to the present invention, when the mobile connector is removed from the fixed connector in order to move the telephone during a call, the opening/closing means and the circuitry including the same automatically maintain the DC loop to the exchange and at the same time. Since the music box sound is transmitted, the person on the other end of the call can hear music, etc., and it can also be used as a warning sound on the telephone side in case the electrical connection of each connector is accidentally disconnected. Also,
According to the present invention, the timing circuit starts operating with the formation of a DC loop, and when the DC loop continues to be formed for a certain period of time, it detects this as a specific condition being satisfied and starts the DC loop. This has the effect of preventing the exchange from being held invalid.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a connecting device for a plug-in telephone according to the present invention, and FIG. 2 is a circuit diagram showing the same embodiment. 1... Parent jack, 2... Child jack, 3...
Plug, 4... Speaker, 7... Wiring, 10, 2
0... Opening/closing means, opening/closing means, 11... Electronic music box, 12... Timing circuit, 13... Rectifier circuit, 14... DC power supply, 15... Diode, 1
6...Resistance, r...Relay contact.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a fixed connector connected to a telephone line and a mobile connector connected to a telephone set, the fixed connector and mobile connector connect the telephone line and telephone electrically. In the connection device of the plug-in telephone connected to the
An opening/closing means that connects when the electrical connection is cut by the mobile connector, a music box that allows the other party to hear a music box sound when a predetermined condition is met, and a telephone line exchange that restores the telephone line exchange when a specific condition is met. a parent fixed connection device comprising a timing circuit, the parent fixed connection device and the child fixed connection device are connected to a telephone line, and each of the opening/closing means in each fixed connection device is connected in series. A circuit is formed in which a DC loop is formed with respect to the exchange when these are connected, and a circuit is formed in which the music box operates when a predetermined condition is satisfied by the formation of this DC loop, and each of the above A connection device for a plug-in telephone set, characterized in that a circuit is formed to operate the timing circuit and interrupt the DC loop when a specific condition is satisfied when the opening/closing means maintains a closed state for a certain period of time. (2) Utility Model Registration Scope of Claims The plug-in telephone connection device as set forth in claim 1, characterized in that the plug is comprised of one parent fixed connector and one or more child fixed connectors. Telephone connection device.