JPH0230940Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for connecting a telephone set to a subscriber terminal of a telephone line.

A plurality of such connectors are connected in parallel to the subscriber terminals of the telephone line and are appropriately placed in each room of a house, so that the caller can make a call at his/her convenience.

However, if the caller wants to move the call location during a call, the connector must be temporarily disconnected.
At that time, the direct current loop between the subscriber terminals is broken and the communication path between the sender and the receiver in the exchange is cut off, making it inconvenient to make a call in order to reestablish the communication path.

Therefore, the present invention was devised to solve the above-mentioned inconveniences of conventional telephone connectors.The purpose of this invention is to provide a telephone that can be moved from one place to another even during a call and that can immediately resume a call. The purpose is to provide connectors.

The telephone connector according to the invention includes a jack part on the telephone line side which is preferably connectable and disconnectable to a subscriber terminal of the telephone line, and a socket part for receiving a jack on the telephone side, and a socket part for receiving the jack part on the telephone side side. The subscriber loop is temporarily closed when the telephone is plugged in, and the subscriber loop is held by a self-holding relay when the telephone jack is pulled out.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In Fig. 1, signal lines 1a and 1b are respectively connected to subscriber terminals of a telephone line, and sockets 2 ₁ , 2 ₂ , or 2 _o constituting a telephone connector are connected in parallel to each other on the signal lines 1a and 1b. It is connected. Connectors ₃₁ to _3o according to the present invention are connected _to these sockets 21 to _2o . Each of these connectors has a socket portion, and a plug jack 6 connected to the telephone set 4 via a cord 5 is detachably connected to each socket portion. Sockets 2 ₁ to 2 _o are placed at appropriate locations in the house so that the caller can make a call at a desired location.

In other words, the telephone connector according to the invention is designed to be inserted between a conventional telephone socket and jack.

FIG. 2 shows the circuit configuration of the telephone connector according to the present invention, and shows the jack part J of the connector.
There are relay lines 10a and 10 between the
connected by b. Relay line 10a,
A normally open short-circuit switch 11 is connected between 10b and 10b. Also, one end of the coil of relay RL is connected to relay line 10b, and the other end is connected to light emitting diode LD.
and is connected to the relay line 10a via the make contact RL of the relay RL. Furthermore, a trigger normally open switch 12 is connected in parallel to the make contact rl.

FIG. 3 shows a part of the mechanism of each telephone connector shown in FIG. socket holes 23a for receiving pins 6a, 6b;
23b is formed in the housing 23. A spring 2 is installed inside the socket holes 23a and 23b.
rotatable actuators 26, 27 mechanically biased by 4, 25;
The actuators 26, 27 are usually stoppers 28,
It is at rest in the home position indicated by 29.

Now, pin 6a of jack 6 on the telephone side,
6b is the socket hole 23a, 23b of the connector ₃₁
When the actuator 26 is inserted into the
Temporarily activate the actuator of SW12
The normally open contact 12 (FIG. 2) within is temporarily closed. Next, the actuator 27 is rotated to the position indicated by the broken line, and the SW11 is activated to open the normally open short-circuit switch 11 in the mechanical switch SW11.
(Fig. 2) is temporarily closed. When the insertion jack is fully inserted, the pins 6a and 6b come into contact with the blade members 20 and 21, respectively, and the relay line 1
A telephone call line is connected to 0a and 10b. In this way, you can freely talk on the phone via the connector ₃₁ , but if you want to move the call place during a call, pull out the phone jack 6 from the socket holes 23a and 23b and insert it into the socket of another connector. The telephone jack 6 is inserted into the hole. When the telephone jack 6 is pulled out, the normally open short switch 11 in SW 11 is first temporarily closed, and then the normally open short switch 11 in SW 12 is closed, contrary to when the telephone jack 6 is inserted. The normally open switch 12 of the switch is temporarily closed. At this time, since the pins 6a and 6b connected to the telephone terminal are already separated from the blade members 20 and 21, the relay lines 10a and 10b are not supplied from the exchange. The relay RL is operated by the temporary closing of the normally open switch 12, and the relay RL is self-held by its self-holding contact, and the light emitting diode LD is also turned on. Therefore, the communication path is maintained even when the telephone jack is pulled out. Next, when the telephone jack 6 is inserted into the socket hole of the connector ₃₂ , for example, the normally open switch 12 is closed and the relay RL is self-holding, and then the normally open short switch 11 is closed. By closing the short circuit switch 11 of the connector 3 ₂ , the self-holding relays RL in the connectors 3 ₁ and 3 ₂ are restored. Thus, by using the telephone connector according to the present invention, the telephone can be moved freely even during a call, which is very convenient.

Note that in the above embodiment, the actuator 2
6 and 27 actuate the SW11 and SW12, but the pins 6a and 6b of the jack 6
Various configurations are conceivable in which the contacts 11 and 12 are operated at desired timing when inserted into the socket hole.

Furthermore, in the above embodiment, the relay RL lights up the light emitting diode to indicate when it is self-holding, that is, when the call path is on hold, but the present invention is not limited to this. It is also conceivable to have a configuration. Furthermore, if a notification sound signal is supplied to the relay line while the call path is on hold, for example, with the coil of relay RL having two windings, the notification sound signal can be transmitted to the other party via the two-winding coil. This is preferable because it can give a sense of security to the other party because the message is transmitted and the other party is notified that the call path via the telephone connector is on hold.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram showing how to use the telephone connector according to the present invention, Fig. 2 is a circuit diagram showing the circuit configuration of the telephone connector according to the present invention, and Fig. 3 is a partially enlarged sectional view of the telephone connector according to the present invention. be. Explanation of symbols of main parts, 1a, 1b...Signal line, 2 ₁ to 2 _o ...Socket, 3 ₁ to 3 _o
...Telephone connector according to the present invention, 4...Telephone, 6...Telephone side plug jack, J...Jack part of telephone connector, S...Socket part of telephone connector, RL...Relay, 10a, 10
b...Relay line, 11...Normally open short-circuit switch,
12... Trigger normally open switch, 20, 21... Blade member, 26, 27... Actuator,
SW11, SW12...Mechanical switch.

Claims (1)

[Scope of utility model registration request] A telephone connector that connects a subscriber terminal of a telephone line and a telephone call line, the relay line having one end connected to the subscriber terminal and the other end connected to the call line, and the other end of the relay line. a normally open short-circuit switch that temporarily shorts the relay line during connection and disconnection between the relay line and the communication line; a holding relay having a coil connected between the relay line in series with a self-contact; A switch is connected in parallel to the contact, and when the other end of the relay line is disconnected from the call line, it is temporarily closed prior to the normally open short switch, and the other end of the relay line is connected to the call line. A telephone connector with a call path hold function, characterized in that it comprises a normally open switch that is temporarily closed after the normally open shorting switch when connected.