JPH0339969Y2 - - 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 in particular to a plug-in telephone that allows the connection of a fixed connector to be freely changed without disconnecting the call during a call. Regarding connection devices.

[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 phone 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connection device and the mobile connection device is cut off, A phenomenon occurs in which telephone exchanges become outdated and call lines are disconnected.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, 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It should be noted that the above-mentioned phenomenon of switching equipment becoming outdated can also be avoided by using other methods.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 conventional technology described above, when attempting to move to another location during a call, there is an inconvenience 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 is a plug-in telephone set that has a single telephone set and prevents the switching equipment from being duplicated even while being moved between fixed connectors. A connecting device, in particular a plug-in telephone connection, which prevents the telephone from being inadvertently removed from the fixed connection, and which maintains the line hold only by the act of removal and prevents the exchange from being duplicated. The purpose is to provide equipment.

[Means for solving problems]

A connecting device for a plug-in telephone according to the present invention which solves the above-mentioned problems is composed of a plurality of fixed connectors connected to a telephone line and a movable connector connected to the telephone. In the connection device for a plug-in telephone that electrically connects a telephone line and a telephone using a connecting device, the fixed connecting device disconnects when an electrical connection is established with the movable connecting device; It is equipped with an opening/closing means that becomes connected when cut, a music box that is activated by rotation of a lever that can be operated from the outside, and an opening/closing contact that is connected in series to the opening/closing means and that enables the telephone line exchange to be re-updated. The opening/closing circuit is interlocked with the music box lever and switches the opening/closing contact from open to closed by rotating the lever, and the lever prevents the movable connector from separating from the fixed connector while switching the movable connector by its rotation. The device doubles as a stopper that allows the movable connector to be attached to and detached from the fixed connector by retreating from the device, and when the opening/closing means is connected, a loop circuit is formed with respect to the exchange, and the music box sound of the music box is transferred to the telephone line. It is characterized by having a circuit configuration in which

[Effect]

According to the present invention configured as described above, the movable connector can be attached and detached by rotating the lever of the music box in advance, regardless of whether the call is being made or received. After making it possible to form a loop circuit to the exchange by connecting the switching contacts of the circuit, when the electrical connection between the fixed connector and the movable connector is cut off, the switching means in the fixed connector becomes connected, thereby A loop circuit is formed for the exchange. Furthermore, since the lever is rotated before the movable connector is removed from the fixed connector, the music box is activated and starts its operation.

Therefore, according to the present invention, the function of the music box lever that also serves as a stopper prevents the movable connector on the telephone side from being inadvertently pulled out from the fixed connector, and also prevents the mobile connector on the telephone side from being pulled out from the fixed connector during a call. You can move freely to a place where your equipment is available, and even while you are moving, the telephone exchange does not become outdated, so your telephone line will never be disconnected. Furthermore, since the circuit is configured so that the music box operates while the telephone is being moved and the music box sound is transferred to the telephone line, the other party on the call can hear the music box sound. Of course, on the telephone side, the sound produced by the music box can also be used as a warning sound to notify that the electrical connection is broken.

On the other hand, in the dual/old circuit, if the opening/closing means remains connected even after a predetermined period of time has elapsed, this is detected as a specific condition being satisfied, and the loop circuit is disconnected. This makes it possible to prevent the exchange from being held invalid.

〔Example〕

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

1 to 4 serve to illustrate the fixed connector and the movable connector that constitute an embodiment of the present invention.

FIG. 1 is an explanatory diagram showing the internal structure of a fixed connector constituting a connecting device for a plug-in telephone according to the present invention;
FIG. 2 is a plan view of the movable connector attached to the fixed connector, FIG. 3 is a side view of the fixed connector with the movable connector attached, and FIG. 4 is the movable connector attached to the fixed connector. FIG. 3 is a perspective view showing a state in which the connector is attached and detached.

In FIGS. 1 to 4, a jack 1 serving as a fixed connector is provided with receiving fittings _1J and _2J , and telephone lines ₁ and ₂ can be connected to these receiving fittings _1J and _2J . This jack 1 as a fixed connector has a plug 2 as a movable connector.
is now being installed. This plug 2
is connected to a telephone (not shown). The telephone lines ₁ , ₂ and the telephone set are electrically connected by the parent jack 1 as each of the above-mentioned fixed connectors and the plug 2 as a movable connector.

The jack 1 is constructed as follows.
That is, the opening/closing means P is disconnected when an electrical connection is established by the plug 2 by inserting the plug 2 into the jack 1, and is connected when the electrical connection is disconnected by the plug 2 by removing the plug 2 from the jack 1. is provided. That is, the opening/closing means P is configured such that when the button 3 is pushed down by the plug 2 and lowered, it is disconnected, and when the plug 2 disappears, it is connected when the button 3 is raised. Further, the case of the jack 1 is provided with a protruding lever L that can be operated from the outside. A music box O that is activated when the lever L is rotated is provided within this case.
This music box O is designed so that when the lever L is turned to the right, the mainspring of the music box O is wound up, and when the lever L is released, the music box O makes a sound. Further, the rotation shaft of the lever L is provided with a disc gear 4. Reference numeral R indicates a contact point constituting the dual circuit, and this contact point R can be connected to the disc gear 4 by turning the lever L to the right.
rotates and becomes tangential, and when the music box O returns to its original position, this disk gear 4 rotates and returns to its original position, thereby becoming tangential. This redundant circuit is configured so that when the music box O returns to its original state, a contact R is opened assuming that a specific condition is met, and the telephone line exchange is redone. Here, r ₁ ,
_R2 is a terminal for communicating between jacks, and T is a transmitter that picks up the music box sound of music box O and lets the other party hear it. Further, as shown in FIGS. 2 and 3, the jack 1 has a structure in which the plug 2 cannot be attached or removed unless the lever L is rotated. Further, one end of the opening/closing means P is electrically connected to an inter-jack communication terminal _r1 via a transmitter T, and when the opening/closing means P is connected, a loop circuit is formed with respect to the exchange. Sometimes, the circuit configuration is such that the music box sound of the music box O can be transmitted over a telephone line. However, as will be described later, the other end of the opening/closing means P is connected to either of the receiving metal fittings ₁ J or ₂ J in order to form a loop circuit with respect to the exchange when the opening/closing means P is connected. I have made it possible. Further, the jack-to-jack communication terminals r ₁ and r ₂ are electrically connected to the contact R, and if the music box O is in operation and the plug 2 is not attached within a certain period of time, the disc gear 4
rotates and returns to its original position, and if the formation state of the loop circuit continues for a certain period of time (assuming that a specific condition is met), the circuit configuration is such that the contact R opens and interrupts the loop circuit. be.

5 and 6 are shown for explaining an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing specific wiring relationships in the same embodiment, and FIG. 6 is a circuit diagram showing the circuit configuration of FIG. 5.

The embodiment shown in FIGS. 5 and 6 is constructed using two jacks 1, and the jacks 1 are hereinafter referred to as J ₁ and J ₂ , and the jack J ₁ is the same as the jack 1 shown in FIGS. 1 to 4. The symbols used in the figures will be used as they are, and jack _J2 will be used by adding a dash to the symbols used in FIGS. 1 to 4.

The receiving fittings _{1J , 2J} of the jack J1 are connected to the telephone lines ₁ , ₂ , and are also connected to _the receiving fittings ' _1J , ' _2J of the jack J2.
The jack-to-jack communication terminal _r1 of the jack _J1 is connected to the jack-to-jack communication terminal _r'2 of the jack J2, and the jack-to-jack communication terminal _r2 of the jack J1 is connected to the jack-to-jack communication terminal _r'2 of the jack _J2 . Connected to inter-jack communication terminal _r'1 of jack _J2 . Further, the other end of the opening/closing means P of the jack _J1 is connected to a receiving fitting _1J . The other end of the opening/closing means P' of the jack _J2 is connected to a receiving fitting ' _2J .

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

Now, when the plug 2 of the telephone is connected to the jack 1 and you want to move it to the jack J ₂ side during a call, first press the lever L of the jack J ₁ .
Turn to the right, then remove plug 2. As a result, the pressing force on the button 3 is released, the opening/closing means P is brought into contact, and the contact point R is brought into a connected state as the disc gear 4 rotates. As a result, for the exchange, telephone line ₁ → receiving metal fitting ₁ J → opening/closing means P →
Transmitter T → Contact R → Jack-to-jack communication terminal r ₂ → Jack-to-jack communication terminal r' ₁ → Transmitter T' → Opening/closing means
P′ → Receiving metal fitting′ ₂ Forms a loop circuit of J → telephone line ₂ and prevents duplication of exchange equipment. At this time, the music box O of the jack _J1 will ring, and the other party on the other end of the call will hear the music box sound through the transmitter T. Next, when the lever L' of the jack J ₂ is turned to the right and the plug 2 is inserted into the jack J ₂ , the button 3' is pressed down, the opening/closing means P' is disconnected, and the loop circuit to the exchange is disconnected from the telephone. You can then switch to the other party and continue the conversation. At this time, when inserting the plug 2 into the jack J ₂ , it is necessary to do so with the telephone receiver off the hook. In addition, the plug ₂ is inserted into the jack J 2 after turning the lever L' of the jack J ₂ to the right, but due to the disconnection of the opening/closing means P', the music box O of the jack J ₁ and the music box of the jack J ₂ are separated. The circuit that sends out O′'s music box sound is disconnected.

This kind of operation is performed by starting the jack from the jack _J2 side.
The same operation occurs when moving to the _J1 side.

If, for some reason, the music box O cannot be inserted into the jack J 2 while moving from the jack J ₁ side to the jack J ₂ side, the music box O will return to its original position after a certain period _of time has passed, and the disc gear 4 will also return to its original position. Since it returns, contact R is disconnected. At this time, since contact R' of jack _J2 is originally disconnected, the loop circuit to the exchange is disconnected, and the exchange is duplicated to prevent invalidation.
The same applies when moving from the jack _J2 side to the jack _J1 side.

FIG. 7 is a circuit diagram showing the circuit configuration when three jacks are provided.

The embodiment shown in FIG. 7 is constructed using three jacks 1, and hereinafter the jacks 1 are denoted by symbols J ₁ , J ₂ , and J ₃ , and the jack J ₁ is shown in FIGS. 1 to 4. Jack J ₂ uses the same symbols used in Figures 1 to 4 with a dash added, and Jack J ₃ uses the symbols used in Figures 1 to 4 with a dash added. It will be used along with the following.

The jack-to-jack communication terminal _r1 of the jack _J1 is
It is connected to the jack-to-jack communication terminal r′ ₂ of jack J ₂ and the jack-to-jack communication terminal r″ ₂ of jack J ₃ , and is connected to the jack-to-jack communication terminal r _{″ 2} of jack J 1.
_r2 is connected to jack-to-jack communication terminal _r'2 of jack _J2 . The other end of the opening/closing means P _of the jack J1 is connected to the receiving fitting _1J . Jack J ₂
The other end of the opening/closing means P _' is connected to the jack-to-jack communication terminal _r''1 of the jack _J3.The other end of the opening/closing means P'' of the jack _J3 is connected to the receiving metal fitting''2J. There is.

With such a configuration, of course, similarly to the above embodiment, each jack J ₁ , jack J ₂ , jack J ₃
This means that you can switch connections by moving between them.

As described above, according to this embodiment, when the electrical connection between the jack 1 and the plug 2 is cut off, the opening/closing means P in the jack 1 becomes connected, regardless of whether a call is being made or received. A loop circuit is thus formed for the exchange. Furthermore, since the lever L is rotated before the plug 2 is removed from the jack 1, the music box O is activated and begins its operation.

According to this embodiment, during a call, the user can freely move to a location other than the location where the jack 1 is located,
What's more, even when the user is on the move, the telephone exchange does not become outdated, so the call line will not be disconnected.
Furthermore, since the circuit is configured so that the music box O is activated while the telephone is being moved and the music box sound is transferred to the telephone line, the other party on the call can hear the music box sound. Of course, on the telephone side, the sound produced by the music box O can also be used as a warning sound to notify that the electrical connection is broken.

On the other hand, in the dual/old circuit, if the opening/closing means P remains in the connected state even after a certain period of time has elapsed, this is detected as a specific condition being satisfied, and the loop circuit is disconnected. This makes it possible to prevent the exchange from being held invalid.

[Effect of idea]

As described above, according to the present invention, the music box lever can prevent the movable connector from detaching from the mobile connector and be inadvertently pulled out from the fixed connector, especially when the phone is not being moved. Since the music box is activated as a hold tone while activating a dual circuit having contacts that are opened and closed by the music, the hold function can be activated with an extremely simple configuration. Also, during a call,
The user can freely move to a location where there are fixed connection devices other than when a call is in progress, and even during the move, the switching equipment does not become outdated, which has the effect of preventing the call line from being disconnected. Furthermore, according to the present invention,
The music box is activated while the phone is moving, and the circuit is configured so that the music box sound is transmitted to the telephone line, so the person on the other end of the call can hear the music box sound, and the phone hears the sound from the music box. It has the advantage that it can also be used as a warning sound to notify that the electrical connection is broken. Furthermore, according to the present invention, if the opening/closing means remains connected even after a certain period of time has elapsed, the dual/old circuit detects this as a condition that a specific condition has been established, and the loop circuit is disconnected. This has the effect of preventing invalid reservations in the exchange.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the internal structure of a fixed connector constituting a connecting device for a plug-in telephone according to the present invention;
FIG. 2 is a plan view of the movable connector attached to the fixed connector, FIG. 3 is a side view of the fixed connector with the movable connector attached, and FIG. 4 is the movable connector attached to the fixed connector. FIG. 5 is an explanatory diagram showing the specific wiring relationship of the same embodiment; FIG. 6 is a circuit diagram showing the circuit configuration of FIG. 5;
FIG. 7 is a circuit diagram showing the circuit configuration when three jacks are provided. 1, J ₁ , J ₂ , J ₃ ... Jack (fixed connection tool),
2...Plug (movable connector), 3, 3', 3''...
Button, L, L'...Lever, O, O'...Music box,
P, P', P''...Opening/closing means, T, T', T''...Telephone, R, R', R''...Contact (old and duplicate circuit).

Claims (1)

[Claims for Utility Model Registration] Consisting 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 to electricity. In a connecting device for a plug-in telephone, the fixed connector has an opening/closing means that disconnects when the movable connector makes an electrical connection and connects when the movable connector breaks the electrical connection, and A music box that is activated when an operable lever is rotated, and an opening/closing contact that is connected in series to the opening/closing means to enable the telephone line exchange to be updated or updated, and linked to the music box lever and opened/closed by rotating the lever. The lever is provided with a dual circuit in which the contact is switched from disconnected to connected, and the lever prevents the movable connector from separating from the fixed connector, and by its rotation, withdraws from the movable connector and connects the movable connector to the fixed connector. It also serves as a stopper that can be attached and detached from the tool,
A connection device for a plug-in telephone set, characterized in that the opening/closing means is configured to form a loop circuit with respect to an exchange when the opening/closing means is connected, so that the music box sound of the music box can be transferred to the telephone line.