JPH01264444A - Telephone set - Google Patents

Abstract

PURPOSE:To improve the service life and reliability of the hook switch of a telephone set by disposing a magnet and magnetism detection circuit on the main body of the telephone set at a specific interval and detecting the on-hook and off-hook states of the receiver from the magnetic flux of the magnet. CONSTITUTION:Since a plumb 23 is closely faced to a magnet 11 and magnetism detection circuit 12 when a handset 2 is in an on-hook state, a magnetic circuit is formed which transmits the magnetic flux from the magnet 11 to the detection circuit 12 through the plumb 23. Accordingly, the circuit discriminates the on- hook state by detecting the magnetic flux from the magnet 11 and sets a call circuit 13 to a non-actuated state. When the handset 2 is set to an off-hook state thereafter, the plumb 23 is separated from the magnet 11 and circuit 12 and the magnetic flux of the magnet 11 is scarcely transmitted to the circuit 12. Therefore, the circuit discriminates the off-hook state and sets the circuit 13 to an actuated state.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone set in which a communication circuit is in an inactive state and in an active state when the handset is in an on-hook state or an off-hook state.

BACKGROUND OF THE INVENTION Conventionally, telephones of this type have used hook switches using mechanical contacts, and have been severely limited by mechanical life, structural complexity, reliability, design, etc.

Therefore, a magnetic detection circuit such as a reed switch or a Hall element is installed in the telephone body, a magnet is mounted on the handset, and the magnetic flux from the magnet is detected by the magnetic detection circuit to determine whether the handset is placed on the telephone body. By doing so, attempts have been made to create a contactless system that detects the on-hook state and off-hook state of the handset and turns the communication circuit into an inactive state and an active state.

Problems to be Solved by the Invention However, it is difficult to implement a magnet in the handset of a telephone, and since a thumbtack, needle, etc. are attracted to the handset by the magnet, there is a risk of danger in actual use. There was a problem that it could not be put into practical use.

The present invention solves such conventional problems, and provides an excellent hook inch that can be made contactless, has a long life, improves reliability, and improves the self-uniformity of the design. The purpose is to provide telephones.

Means for Solving the Problems In order to achieve the above object, the present invention comprises (1) arranging a magnet and a magnetic detection circuit in the main body of the phone at a certain interval, and a magnetic sensor that transmits magnetic flux from the magnet to the magnetic detection circuit. The structure is such that on-hook and off-hook states are detected by magnetic flux when a handset with a body is placed in an on-hook state and an off-hook state.

Therefore, according to the present invention, when the handset is placed in the on-hook state, the magnetic flux from the magnet is transmitted to the magnetic detection circuit via the magnetic body, so that the magnetic detection circuit detects the on-hook state. Deactivate the communication circuit.

In addition, when the handset is placed in an off-hook state, the magnetic flux from the magnet becomes difficult to reach the magnetic detection circuit due to the separation of the magnetic bodies, so the magnetic detection circuit detects the off-hook state and activates the call circuit. .

Therefore, the hook switch can be made contactless, and the life and reliability of the hook switch can be improved.

An example diagram of an example of an industrial water invention [II? It shows the success of the project.

In the figure, 1 indicates the main body of the telephone, and in order to maintain balance when holding the handset 2, which will be described later, a weight 23 made of, for example, iron as a magnetic material is placed at a certain interval on the part where the handset 2 is placed in an on-hook state. A magnet 11 spaced apart and a magnetic detection circuit 12 such as a reed switch or a Hall element.
and a communication circuit 13 which is activated or deactivated depending on the output of the magnetic detection circuit 12.

Reference numeral 2 denotes a handset, which is provided with a handset 21, a handset 22, and a weight 23 for maintaining balance when holding the handset 2.

3 indicates a telephone line.

Next, the operation of the above embodiment will be explained.

In the above embodiment, first, when the handset 2 is in an on-hook state placed on the telephone main body 1 as shown in the figure, the weight 23 is attached to the magnet 11. Since it faces the magnetic detection circuit 12 in close proximity, a magnetic circuit is formed in which the magnetic flux from the magnet 11 is transmitted to the magnetic detection circuit 12 via the weight 23.

Therefore, the magnetic detection circuit 12 detects the magnetic flux from the magnet 11, determines the on-hook state, and deactivates the 1-call circuit 13.

Next, when the handset 2 is removed from the phone main body 1 and placed in an off-hook state, the weight 23 is separated from the magnet 11 and the magnetic detection circuit 12 and no longer faces them, so the magnetic flux from the -stone 11 is transferred to the absence of the weight 23. This makes it difficult for the magnetic field to be transmitted to the magnetic detection circuit 12.

Therefore, the magnetic detection circuit 12 is unable to detect the magnetic flux of the magnet 11, so it is determined that the off-hook state is present, and the communication circuit 13 is activated.

As described above, according to the above embodiment, the stone 11, the magnetic detection circuit 12, and the weight 23 cause the handset 20 to be in the on-hook state.
Because off-hook status can be detected.

It is possible to realize a 7-nox contactless system, improving the lifespan and reliability of the hook switch.

Further, since the hook switch can be made smaller with the magnet 11, the magnetic detection circuit 12, and the weight 23, the degree of freedom in designing the telephone is improved.

Furthermore, since the weight 23 is made of a magnetic material, the number of parts can be reduced.

In the above embodiment, the weight 23 is connected to the handset 2 of the handset 2.
Although the example has been described in which the magnet 11 and the magnetic detection circuit 12 are provided on the second side and facing the weight 23, the magnet 11, the magnetic detection circuit 12, and the weight 23 may be provided in other positions. can.

In addition, @stone 11 may be either a permanent magnet or an electromagnet,
The weight 23 may also be made of a magnetic material other than iron.

Further, although the weight 23 is made of a magnetic material, the weight and the magnetic material may be made of different materials.

Effects of the Invention As is clear from the above embodiments, the present invention provides a transmitter that includes a magnet and a magnetic detection circuit disposed at a constant interval in the main body of the telephone, and has a magnetic body that transmits magnetic flux from the magnet to the magnetic detection circuit. Since it is configured to detect on-hook and off-hook by the magnetic flux when the handset is in on-hook and off-hook states, the hook switch can be made contactless, and the life and reliability of the hook switch can be improved.

In addition, since it can be made smaller by using a 7-no-kusuinochite b:m stone, a magnetic detection circuit, and a magnetic material, it has the effect of improving the degree of freedom in the design of the telephone.

[Brief explanation of the drawing]

The figure is a block diagram showing the configuration of a telephone according to an embodiment of the present invention. 1. Telephone body, 2. Handset -3, -' are live wires. 11...Magnet, 12...Magnetic detection circuit, 13...Telephone circuit. 210. Transmitter, 22. ...Telephone receiver, 23...weight.

Claims (1)

[Claims] A telephone main body having a magnet, a magnetic detection circuit disposed at a certain distance from the magnet, and a communication circuit that is activated or deactivated depending on the output of the magnetic detection circuit; A telephone set including a handset and a receiver having a magnetic body that transmits magnetic flux to the magnetic detection circuit.