JPH089008A - Opening/closing device for hook switch in telephone set - Google Patents

Abstract

PURPOSE:To provide the opening/closing device for a hook switch in which a structure without intrusion of dust or water or the like into a telephone set main body from a receiver is adopted without the need for a hooking button and is used in common regardless of the design of the telephone set main body and its handset with a comparatively simple configuration. CONSTITUTION:A couple of permanent magnets 13, 12 for driving and receiving are provided in a repulsing state in relation to a handset 7 and the telephone set main body 1 corresponding to the handset 7 and the passive permanent magnet 12 at the telephone set main body 1 is energized to a tendency easily progressed toward a font side at all times by a spring or the like and only when the handset 7 is placed on a handset cradle 4 of the telephone set main body 1, the hook switch 8 is set to the reception standby state in interlocking with the passive permanent magnet 12 with a repulsive force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook switch opening / closing device for capturing and opening a communication circuit in a telephone, and more specifically, whether or not a handset is mounted on a handset mounting portion of a telephone body. The present invention relates to a hook switch opening / closing device of a type in which a hook switch is opened / closed based on the above.

[0002]

2. Description of the Related Art As a conventional hook switch opening / closing device of this type, a button hole is formed in a handset receiving portion of a handset mounting portion generally formed in a telephone body, and a hooking button is provided in the head of the button hole. The handset is provided with a hook switch that opens and closes in conjunction with the hooking button moving forward and backward while the hook always protrudes upward from the handset receiving part. The hook switch is opened and closed by moving the hooking button forward and backward based on the mounting or removal of the handset.

[0003]

According to the above-mentioned conventional technique, since the button hole is formed, not only dust or water easily enters the main body of the telephone through the button hole, but also static electricity may enter the main body. The internal electronic circuit will be damaged, and the adoption of the hooking button has the drawback that the sliding property will be deteriorated due to stains or wear on the sliding part, which has low durability and is compatible with the design of the other handset and handset. Since it is required to adopt a hooking button as described above, there is a disadvantage that the shape of the hooking button often has to be newly designed due to the change in the design of the telephone body and the handset.

Therefore, an object of the present invention is to provide a hook switch opening / closing device having a structure that prevents dust, water, static electricity, etc. from entering the main body of the telephone from the handset receiving portion based on a simple structure. An object is to provide a hook switch opening / closing device that does not require a hooking button, and yet another object is a hook switch opening / closing device that can be commonly applied regardless of the design of the telephone body and the handset. To provide.

[0005]

In order to achieve the above object, the present invention relates to a handset and a main body of a telephone corresponding to the handset, and a pair of permanent magnets for driving and passive. The passive permanent magnets on the telephone body side are always biased by springs so that they can easily move toward the front side, and the handset is placed on the handset mount section of the telephone body. It is characterized in that the hook switch is operated in the signal receiving state in conjunction with the passive permanent magnet that is retracted by the repulsive force only when the is mounted.

[0006]

The pair of permanent magnets provided on the handset and the telephone body side approach each other by the mounting of the handset, and the passive permanent magnet on the telephone body side retracts inward by the repulsive force. The hook switch operates in conjunction with the backward movement of. When the handset is detached from the telephone body, the passive permanent magnet is released from the repulsive force and advances toward the front part, and the hook switch is restored.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings.

As a telephone set to which the present invention is applied, as shown in, for example, FIGS. 1 and 2, a mount in which a transmitter receiver 2 and a receiver receiver 3 are formed on the top of one side of a telephone body 1. A unit 4 is provided, and a handset 7 having a transmitter 5 and a handset 6 is placed on the mount 4, and the handset 7 is detached from the mount 4 during a call. In addition, a hook switch 8 for capturing and opening a communication circuit is fixedly provided on the printed circuit board 9 inside the handset receiver 3, and a hook lever as a passive unit 10 is provided on the hook switch 8 for mounting. In adopting the model in which the hook switch 8 is opened and closed via the passive unit 10 based on whether the handset 7 is placed on the unit 4
There is no difference in nature from the configuration of a conventional hook switch opening / closing device of this type.

As a special configuration of the present invention with respect to the above type, for example, as shown in FIGS. 1 and 2, a guide 11 that is close to the inner surface of the top wall of the handset receiver 3 and is substantially vertical to the top wall is provided.
And a passive permanent magnet 12 is arranged so that it can slide forward and backward while being guided by the guide 11, and the hook switch 8 is provided at a position near the guide 11 at the end of the passive portion 10. The permanent magnet 12 is placed on the inner surface of the top wall of the handset receiving portion 3 by a biasing means, for example, a return spring (not shown) attached to the passive portion 10, while the portion is arranged corresponding to the lower end of the permanent magnet 12. The handset 6 is biased so as to be easily contacted at all times, and the drive pole permanent magnet 13 is separately provided in the handset 6 in the handset 7 so as to have a repulsive relation while corresponding to the passive permanent magnet 12. They are arranged so as to face each other.

Based on the above construction, the mounting portion 4 as shown in FIG.
When the handset 7 is placed on the handset 6 and the handset 6 is placed on the handset receiver 3, the drive permanent magnet 13 in the handset 6 is used as the passive permanent magnet 1 in the handset receiver 3.
2, the permanent magnet 12 is retracted inward against the urging action by the repulsive force based on the magnetic force of the permanent magnets 12 and 13, and the passive portion 10 is swung inward, whereby the hook switch 8 is received. Hold on hold.

Contrary to this, when the handset 7 is removed from the handset receiver 3 as shown in FIG. 2, the permanent magnet 12 and the passive unit 10 are moved together by the urging action of the return spring attached to the passive unit 10. The hook switch 8 is held in the talking state by advancing and restoring in the front direction.

A drive permanent magnet 13 provided in the handset 7
Regarding the above, as shown in FIGS. 1 and 2, it is preferable to provide not only the handset 6 but also the transmitter 5 so that there is no problem even when the handset 7 is mounted in the reverse direction.

The passive permanent magnet 12 may be fixed to the passive portion 10, in which case the guide 11 can be omitted.

In designing the permanent magnets 12 and 13, the distance between the permanent magnets 12 and 13 in a state in which the handset 7 is placed on the platform 4, and the configuration of the platform 4 and the handset 7. It is important to determine the magnetic forces of the permanent magnets 12 and 13 in consideration of the magnetic permeability of the material, the urging force applied to the permanent magnet 12 and the passive portion 10, and the like.

In the above-mentioned embodiment, the case where the telephone body 1 is placed on the desk almost horizontally is used, but the present invention is also applicable to the wall-mounted type in which the telephone body 1 is used in a nearly vertical state. Of course, it can be applied.

[0016]

As described above, according to the present invention,
A pair of permanent magnets, one for driving and one for passive, are provided in the handset and the telephone body so as to repel each other, and the passive permanent magnet is provided so that it can move back and forth near the inner surface of the top wall of the receiver. Since the hook switch is operated in conjunction with the backward movement due to the repulsive force based on the magnetic force, the handset receiver is compared to the conventional type in which a button hole is formed in the telephone body and the hooking button is put in and out. In addition to preventing water from entering the phone body from the part, it is possible to prevent damage to the electronic circuit due to the ingress of static electricity as well as not considering the intrusion of dust.
In addition, since it can be applied in common regardless of the design of the telephone body and the handset, it can be widely used for various models to reduce the manufacturing cost. Since it is absent or limited, there is an advantage that it can be used for a long period of time without any trouble due to contamination and wear of the sliding portion.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of a telephone to which a hook switch opening / closing device of an embodiment is applied, in a handset mounted state.

FIG. 2 is a vertical sectional side view showing a main part of the telephone of FIG. 1 in a state in which a handset is detached.

[Explanation of symbols]

 1 telephone main body 2 transmitter receiver 3 receiver receiver 4 mounting unit 5 transmitter 6 receiver 7 transmitter / receiver 8 hook switch 10 passive unit 12 permanent magnet 13 permanent magnet

Claims (2)

[Claims] 1. A handset (4) having a handset receiver (3) is formed on a telephone body (1) to mount a handset (7), and at the time of a call, a handset ( 7) should be removed from the mounting part (4), and the receiver part (3)
A hook switch (8) and a passive part (10) for the hook switch (8) are provided inward of the passive switch (8) based on whether the handset (7) is mounted on the mounting part (4). In a telephone of a type in which a hook switch (8) is opened and closed via a (10), a passive permanent magnet (1) is provided at a position near the inner surface of the top wall of the receiver (3).
2) is urged so as to always contact the inner surface of the top wall, and a hook switch (8) is arranged close to the permanent magnet (12) so that the passive portion (10) is connected to the permanent magnet (1).
2) corresponding to the lower end, and a driving permanent magnet (13) is arranged inside the handset (6) of the handset (7) so as to be in a repulsive relationship while corresponding to the permanent magnet (12). A hook switch opening / closing device for a telephone, which is characterized by being installed. 2. The hook switch opening / closing device for a telephone according to claim 1, wherein the transmitter (5) of the handset (3) is provided with a drive permanent magnet (13).