DE2430480B1

DE2430480B1 - Telephone hand switch for inhibiting sound transmission - permits subscriber to allow and inhibit transmission whilst listening using the hand holding the handpiece

Info

Publication number: DE2430480B1
Application number: DE2430480A
Authority: DE
Inventors: Peter Johann 2000 Hamburg Neindorf
Original assignee: Individual
Current assignee: Individual
Priority date: 1974-06-25
Filing date: 1974-06-25
Publication date: 1975-08-14
Also published as: DE2430480A1

Abstract

The simple switch element is for incorporating in the handpiece of a normal telephone, which allows the user to inhibit and permit transmission at will. The switch is so situated and shaped that it can be operated by the hand holding the handpiece, so that the other hand can continue writing. Basically the device consists of a sliding button, which is operated by the user, attached to a small flat insulating plate by means of a rod, all mounted inside the handpiece. The flat plate is pushed between the contacts of a circuit breaker incorporated in the circuit which actuates the microphone. In one position the plate deactivates this circuit, while in the other position normal operation is possible. Two slightly different forms of the actual switching arrangement are presented and mention is also made of the possibility of having a cruciform shaped turning switch to "lock" the device into one mode.

Description

In der Zeichnung ist- der Gegenstand der Erfindung dargestellt, und zwar zeigt In the drawing, the object of the invention is shown, and although shows

F i g. 1 einen Fernsprechhandapparat in einer schaubildlichen Ansicht, Fig.2 das Schaltbild für die Sprechkapsel und die Hörkapsel im Apparategehäuse, F i g. 3 die auf der Kontaktzunge für die Sprechkapsel angeordnete Unterbrecherplatte in einer schaubildlichen Ansicht, F i g.4 einen senkrechten Schnitt gemäß Linie IV-IV in Fig.3und F i g. 5 eine weitere Ausführungsform der Ausbildung und Anordnung der Unterbrecherplatte auf der Kontaktzunge in einem senkrechten Schnitt gemäß Linie V-V in F i g 3. F i g. 1 shows a telephone handset in a perspective view, Fig. 2 the circuit diagram for the speech capsule and the earpiece in the device housing, F i g. 3 the interrupter plate arranged on the contact tongue for the microphone capsule in a diagrammatic view, FIG. 4 shows a vertical section along the line IV-IV in Figure 3 and F i g. 5 shows a further embodiment of the design and arrangement the interrupter plate on the contact tongue in a vertical section according to the line V-V in Fig. 3.

In F i g. ist ein in an sich bekannter Weise ausgebildeter Fernsprechhandapparat dargestellt, dessen Apparategehäuse mit 10 bezeichnet ist. Das etwa hantelförmig ausgebildete Gehäuse weist in seinen Endbereichen eine Sprechkapsel 20 und eine Hörkapsel 30 auf. In Fig. is a telephone handset designed in a manner known per se shown, the apparatus housing is denoted by 10. It's roughly dumbbell-shaped trained housing has a mouthpiece 20 and a mouthpiece in its end regions Earpiece 30 on.

Die Stromzuführung zur Sprechkapsel 20 in dem Apparategehäuse erfolgt über eine in dem Gehäuse 10 angeordnete auskragend ausgebildete Kontaktzunge 21, auf deren freiem Ende 21a die Sprechkapsel 20 mit einem bei 22 angedeuteten Kontaktpunkt zur Anlage kommt. Über die Kontaktzunge 21 wird die Stromverbindung zu der Sprechkapsel 20, wie in F i g. 2 dargestellt, hergestellt.The power supply to the microphone capsule 20 in the apparatus housing takes place via a cantilever contact tongue 21 arranged in the housing 10, on the free end 21a of the microphone capsule 20 with a contact point indicated at 22 comes to the plant. The power connection to the microphone capsule is established via the contact tongue 21 20, as in FIG. 2 shown, manufactured.

Zwischen der Stromzuführungsleitung, d. h. zwischen der Kontaktzunge 21 zur Sprechkapsel 20, ist eine Unterbrechereinrichtung 40 angeordnet. Diese Unterbrechereinrichtung 40 besteht aus einer Kontaktplatte 41 aus isolierendem Werkstoff, die auf dem freien auskragenden Ende der Kontaktzunge 21 in Pfeilrichtung X verschieblich gehalten ist. Um die Verschieblichkeit und gleichzeitige Führung der Unterbrecherplatte 41 zu gewährleisten, kann die Unterbrecherplatte gemäß der in F i g. 3 gezeigten Ausführungsform schuh- oder hüllenartig ausgebildet sein. Between the power supply line, d. H. between the contact tongue 21 to the speaking capsule 20, an interrupter device 40 is arranged. This interrupter device 40 consists of a contact plate 41 made of insulating material on the free cantilevered end of the contact tongue 21 held displaceably in the direction of arrow X. is. In order to ensure the displaceability and simultaneous guidance of the breaker plate 41 to ensure, the interrupter plate according to the in F i g. 3 embodiment shown be designed like a shoe or sleeve.

Diese ausgebildete Unterbrecherplatte ist dann auf das freie Ende der Kontaktzunge 21 aufgeschoben. Im Bereich des Kontaktpunktes 22 der Sprechkapsel 20 weist die Unterbrecherplatte 41 eine Durchbrechung 42 auf, so daß bei einer Stellung der Unterbrecherplatte 41 auf der Kontaktzunge 21, bei der der Kontaktpunkt 22 in der Durchbrechung 42 der Unterbrecherplatte 41 zu liegen kommt, ein Stromfluß durch die Kontaktzun- ge über den Kontaktpunkt 22 zur Sprechkapsel erfolgen kann. Das dem freien Ende der Kontaktzunge 21 abgekehrte Ende der Unterbrecherplatte 41 steht mit einem Stab 43 in Verbindung, der durch eine im Apparategehäuse 10 ausgebildete Durchbrechung 44 einseitig hindurchgeführt ist und mit einem auf der Außenseite des Apparategehäuses 10 geführten Betätigungsschieber 45 verbunden ist. Bei Betätigung des Schiebers 45 wird die Unterbrecherplatte 41 auf der Kontaktzunge 21 in Pfeilrichtung Xverschoben, so daß in einer der Endstellungen des Betätigungsschiebers 45 der Kontakt zwischen der Sprechkapsel 20 und der Kontaktzunge 21 hergestellt wird, während in der anderen Endstellung des Betätigungsschiebers die Unterbrecherplatte 41 zwischen dem Kontaktpunkt 22 und der Kontaktzunge 21 zu liegen kommt, so daß die Stromzufuhr über die Kontaktzunge 21 zur Sprechkapsel unterbrochen ist. This trained breaker plate is then on the free end the contact tongue 21 is pushed. In the area of contact point 22 of the microphone capsule 20, the breaker plate 41 has an opening 42 so that in one position the breaker plate 41 on the contact tongue 21, in which the contact point 22 in the opening 42 of the breaker plate 41 comes to rest, a current flow through the contact ge can be done via the contact point 22 to the microphone capsule. That the Free end of the contact tongue 21 facing away from the end of the breaker plate 41 is with a rod 43 in connection, which is formed by a in the apparatus housing 10 Opening 44 is passed through on one side and with one on the outside of the apparatus housing 10 guided actuating slide 45 is connected. When actuated of the slide 45 is the breaker plate 41 on the contact tongue 21 in the direction of the arrow X shifted so that in one of the end positions of the actuating slide 45 the contact between the speaking capsule 20 and the contact tongue 21 is established, while in the other end position of the operating slide, the interrupter plate 41 between the contact point 22 and the contact tongue 21 comes to rest, so that the power supply is interrupted via the contact tongue 21 to the microphone capsule.

Bei einer weiteren in F i g. 5 gezeigten Ausführungsform sind die Längsränder 21b und 21c der Kontaktzunge 21 so abgewickelt ausgebildet, daß U-förmige Führungsschienen bzw. Halterungen 25, 26 erhalten werden. Auf der Kontaktzunge 21 ist dann eine etwa rechteckförmig ausgebildete Unterbrecherplatte 41a angeordnet, die mit ihren seitlichen Rändern innerhalb der Führungen 25, 26 der Kontaktzunge 21 gehalten und geführt ist. Auch diese Unterbrecherplatte 41a ist mit einer entsprechenden Durchbrechung 42 wie bei der Unterbrecherplatte 41 versehen. Über den Stab 43 ist auch diese Unterbrecherplatte 41a mit dem Betätigungsschieber 45 verbunden. In another in FIG. 5 are the embodiment shown Longitudinal edges 21b and 21c of the contact tongue 21 developed so developed that U-shaped Guide rails or brackets 25, 26 are obtained. On the contact tongue 21 an approximately rectangular interrupter plate 41a is then arranged, with their lateral edges within the guides 25, 26 of the contact tongue 21 is held and performed. This breaker plate 41a is also provided with a corresponding one Opening 42 is provided as in the case of the breaker plate 41. About the rod 43 is This breaker plate 41a is also connected to the actuating slide 45.

Es besteht ferner die Möglichkeit, den Betätigungsschieber an einer anderen Stelle des Apparategehäuses anzubringen, als wie dies in F i g. 1 gezeigt ist. Die Unterbrecherplatte kann auch kreisförrnig und exzentrisch um einen Drehpunkt im Apparategehäuse im Bereich der Sprechkapsel 20 angeordnet sein, so daß durch Verdrehen der Unterbrecherplatte die Stromzufuhr von der Kontaktzunge 21 zur Sprechkapsel 20 unterbrochen werden kann oder nicht. Dadurch, daß die Kontaktzunge 21 bei den an sich bekannten Fernsprechhandapparaten lösbar in dem Apparategehäuse angeordnet ist, besteht die Möglichkeit, mühelos die vorangehend beschriebene Unterbrechereinrichtung anzubringen. There is also the possibility of the operating slide on a to be attached to another point of the apparatus housing than as shown in FIG. 1 shown is. The breaker plate can also be circular and eccentric about a pivot point be arranged in the apparatus housing in the area of the microphone capsule 20, so that through Rotate the breaker plate to supply power from the contact tongue 21 to the speech capsule 20 may or may not be interrupted. The fact that the contact tongue 21 in the telephone handsets known per se are detachably arranged in the apparatus housing is, there is the possibility of effortlessly using the interrupter device described above to attach.

Claims

Claims: 1. Telephone handset with a means of a on the apparatus housing provided actuating device operable interrupter device for switching the speech capsule on and off, characterized in that the between the contact point (22) of the microphone capsule (20) and that arranged in the apparatus housing (10) Contact tongue (21) arranged interrupter device (40) from one on the contact tongue (21) guided breaker plate (41) consists of insulating material, which over a control rod (43) with one arranged on the outside of the apparatus housing (10) Actuating slide (45) is connected.

2. Telephone handset according to claim 1, characterized in that that the interrupter plate (41) is designed like a shoe and on the contact tongue (21) is kept displaceable.

3. Telephone handset according to claim 1 and 2, characterized in that that the breaker plate (41a) between the laterally flanged longitudinal edges (25, 26) of the contact tongue (21) is guided.

The invention relates to a telephone handset with a means an actuating device which can be actuated on the apparatus housing for switching the microphone on and off.

The known telephone handsets are designed in such a way that that a dumbbell-shaped apparatus housing the speaking capsule in both of its end regions and the earpiece picks it up so that it is possible to speak and also to hear at any time. It is often felt to be a disadvantage that the microphone cannot be switched off to to deny that the interlocutor generated in space and often undesirable Hears background noises and, on the other hand, the speaker himself is not able to to interrupt the microphone to the one hand over the handset with the interlocutor to be in contact and on the other hand to give instructions to third parties who should not be overheard by the other party. The latter is in most Cases only possible by covering the microphone capsule by hand, but this is often the case leads to the fact that with this hand no other activity - for example, taking notes, etc. Like. - is possible.

It is known to provide telephone handsets with push-to-talk buttons, when activated, the microphone is connected to the speech circuit. Around To enable this, a portable telephone handset is designed in such a way that that all elements necessary for its operation are arranged in the handset and this handset can be operated without an additional support frame. at this portable telephone in the form of a handset, its housing next to the speech capsule and the earpiece also have all the switching elements required for operation carries and in the handle part two switches are arranged, one of which turn on the circuit of the earpiece and the other to turn on the circuit of the microphone each switch has its own nes control element provided by which the control element influencing the circuit of the microphone in his Actuation of the operating element influencing the circuit of the Hörkapsei mechanically emotional. Because of this structural design, this is not necessary with portable telephones otherwise usual box-shaped support frame for the handset.

In addition, a handset for telephone stations has become known, with which it is possible for the participant, even if he is hard of hearing, in a simpler way Way an adjustment of the volume of an incoming call to his personal Bring about needs. To achieve this, there is a transistor amplifier in the handset built-in, this transistor amplifier including a gain control in the listening part of the handset is housed, with the operating member designed as a knurled wheel of the gain regulator on the outer jacket of the handset part near the cover cap for the The earpiece is arranged so that it is about a to the axis of the cap substantially parallel axis is adjustable. In this known embodiment of a telephone handset is just an adjustment of the volume of an incoming call to the personal one Needs of the speaker possible. Switching the microphone on and off is not possible. The object of the present invention is therefore to provide a telephone handset to create with it using a simple in its construction and can be retrofitted in any commercially available handset is to switch the microphone on or off if necessary.

To solve this problem, a telephone handset is the initially proposed type, designed according to the invention in the manner is that the interrupter means between the contact point and the speech capsule and the interrupter device arranged in the apparatus housing from an interrupter plate made of insulating material and guided on the contact tongue consists of a control rod with a on the outside of the apparatus housing arranged operating slide is connected.

The interrupter plate can be designed like a shoe and on the contact tongue be designed to be displaceable for the speaking capsule. In addition, there is also the Possibility to use a contact tongue for the speech capsule, its longitudinal edges are beaded like a guide, so that the lateral edge portions of the breaker plate are held in these tours.

A telephone handset designed in this way enables this at any time Interrupting the speech capsule during a call for the purpose of transferring it of instructions that the interlocutor should not overhear, and on the other hand to avoid that the interlocutor notices unwanted background noise, the occur in the speaker's space, such as B. od in machine shops.

In that only on the with the microphone in connection standing contact tongue in the apparatus housing a movable breaker plate is stored, a subsequent installation in already existing handsets is without great effort possible.