EP0123207B1 - Pushbutton switch arrangement - Google Patents
Pushbutton switch arrangement Download PDFInfo
- Publication number
- EP0123207B1 EP0123207B1 EP84104030A EP84104030A EP0123207B1 EP 0123207 B1 EP0123207 B1 EP 0123207B1 EP 84104030 A EP84104030 A EP 84104030A EP 84104030 A EP84104030 A EP 84104030A EP 0123207 B1 EP0123207 B1 EP 0123207B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock
- pushbutton switch
- dome
- domes
- trip cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 3
- KJLPSBMDOIVXSN-UHFFFAOYSA-N 4-[4-[2-[4-(3,4-dicarboxyphenoxy)phenyl]propan-2-yl]phenoxy]phthalic acid Chemical compound C=1C=C(OC=2C=C(C(C(O)=O)=CC=2)C(O)=O)C=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(C(O)=O)C(C(O)=O)=C1 KJLPSBMDOIVXSN-UHFFFAOYSA-N 0.000 claims 2
- 239000013013 elastic material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000009420 retrofitting Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/06—Key inserted and then turned to effect operation of the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
Definitions
- the invention relates to a key switch arrangement for telephone sets according to the first part of claim 1.
- Such push button switch arrangements with a printed circuit as a carrier of the fixed contacts and a switching mat as a carrier of the movable contacts are already known, e.g. from DE-A-3033134.
- the switch mat is made of rubber or a rubber-elastic plastic and is provided with domed curvatures that are assigned to the buttons. Inside the arch is the movable contact, which is brought into contact with the corresponding fixed contact on the printed circuit when a button is pressed.
- This lock switch is a separate assembly which consists of a lock cylinder with a removable key, a cam which is rotatable about the cylinder axis and which interacts with contact springs, is connected to the lock cylinder.
- the parts are housed in a cylindrical plastic housing that can be screwed to the chassis of the telephone set or can be joined in a form-fitting manner (DE-U-7528008).
- the invention has for its object to integrate the lock switch in the key switch arrangement. This problem is solved by the measures specified in the characterizing part of claim 1. Further training can be found in the subclaims.
- the design according to the invention achieves the advantage that a separate lock switch assembly is unnecessary. The space required for this and for the wiring can be used for other purposes. Construction and assembly of the telephone set are simpler and cheaper than with the conventional construction. Retrofitting is also easy to carry out since no soldering work is necessary. The wiring is already specified in the printed circuit.
- a switch mat 5 with dome-like arches (dome 6) is arranged above a printed circuit 4 with the fixed contacts 8 and conductor tracks.
- the printed circuit 4 is formed by a circuit board or a conductor foil.
- the switch mat 5 consists of an elastic, rubber-like plastic.
- the movable contacts 7 are attached, which cooperate with the fixed contacts 8 of the printed circuit 4.
- the domes are actuated by push buttons, which are located above them, but are not shown in the figures.
- a lock switch 1 is arranged between the domes 6, the lock cylinder 2 of which has a rotatable switching cam 3 at the lower end.
- the lock cylinder and its switching cam are rotated by means of a key (not shown).
- the switching cam 3 is in a neutral central position between two domes 6 of the switching mat 5. As the double arrow indicates, it can be rotated about its axis on both sides.
- Fig. 2 it is turned to the left and has depressed the left dome 6 so that its contact 7 comes into contact with the contact 8 of the printed circuit.
- the domes 6 assigned to the key switch are provided on the switch mat in addition to the key-operated domes.
- domes can easily be attached around the locking cylinder in such a way that they can be actuated with its switching cam 3. If the lock switch 1 is not required at all, the lock cylinder is simply omitted and the opening in the control panel is closed by a blind plug (not shown). Conversely, the blind plug is replaced by a lock switch when retrofitting.
- the lock switch 1 is mounted coaxially over a dome 6 of the switch mat 5. So only one cathedral can be operated.
- the switching cam 3 of the lock cylinder 2 consists here in a bevel of the lower end of the rotatable part of the lock switch. This switching cam 3 is opposed by the uniformly beveled end of a coaxially arranged pressure piece 9, which is only axially movable. If the switch cam 3 is now rotated from the position shown in FIG. 3 to that shown in FIG. 4, the pressure piece 9 is moved downwards against the dome 6 according to the incline of the cam and pressure piece, and this is pressed in so that contacts 7 and 8 touch. When the lock switch 1 is turned back, the pressure piece 9 returns to its starting position.
Description
Die Erfindung betrifft eine Tastschalteranordnung für Fernsprechapparate nach dem ersten Teil des Anspruchs 1.The invention relates to a key switch arrangement for telephone sets according to the first part of
Derartige Tastschalteranordnungen mit einer gedruckten Schaltung als Träger der festen Kontakte und einer Schaltmatte alsTräger der beweglichen Kontakte sind bereits bekannt, z.B. aus der DE-A-3033134. Die Schaltmatte besteht aus Gummi oder einem gummielastischen Kunststoff und ist mit domartigen Wölbungen versehen, die den Tasten zugeordnet sind. Im Innern der Wölbung befindet sich der bewegliche Kontakt, der bei Tastendruck mit dem entsprechenden festen Kontakt auf der gedruckten Schaltung in Berührung gebracht wird.Such push button switch arrangements with a printed circuit as a carrier of the fixed contacts and a switching mat as a carrier of the movable contacts are already known, e.g. from DE-A-3033134. The switch mat is made of rubber or a rubber-elastic plastic and is provided with domed curvatures that are assigned to the buttons. Inside the arch is the movable contact, which is brought into contact with the corresponding fixed contact on the printed circuit when a button is pressed.
Bei modernen Fernsprechapparaten werden solche Tastschalteranordnungen mit Schaltmatten im zunehmendem Masse als Tastwahlblock eingesetzt. Bei Reihen- und Vorzimmeranlagen ist ausserdem zum Schalten von Betriebszuständen, wie z.B. zum Programmieren von Leistungsmerkmalen oder Sperren der Externleitungsberechtigungen, ein zusätzlicher Schlossschalter erforderlich. Dieser Schlossschalter ist eine separate Baugruppe, die aus einem Schliesszylinder mit abziehbarem Schlüssel besteht, wobei mit dem Schliesszylinder ein um die Zylinderachse rotierbarer Nokken, der mit Kontaktfedern zusammenwirkt, verbunden ist. Die Teile sind in einem zylindrischen Kunststoffgehäuse untergebracht, das am Chassis des Fernsprechapparates angeschraubt oder formschlüssig gefügt werden kann (DE-U-7528008).In modern telephone sets, such key switch arrangements with switch mats are used to an increasing extent as a keypad. In the case of row and anteroom systems, it is also necessary to switch operating states, e.g. an additional lock switch is required to program features or block external line authorizations. This lock switch is a separate assembly which consists of a lock cylinder with a removable key, a cam which is rotatable about the cylinder axis and which interacts with contact springs, is connected to the lock cylinder. The parts are housed in a cylindrical plastic housing that can be screwed to the chassis of the telephone set or can be joined in a form-fitting manner (DE-U-7528008).
Der Erfindung liegt die Aufgabe zugrunde, den Schlossschalter in die Tastschalteranordnung zu integrieren. Gelöst wird diese Aufgabe durch die im Kennzeichen des Anspruchs 1 angegebenen Massnahmen. Weiterbildungen sind den Unteransprüchen zu entnehmen. Durch die erfindungsgemässe Gestaltung wird der Vorteil erreicht, dass eine gesonderte Schlossschalter-Baugruppe überflüssig ist. Der dafür und für die Verdrahtung benötigte Raum kann anderweitig genutzt werden. Aufbau und Montage des Fernsprechapparates sind einfacher und billiger als bei der herkömmlichen Bauweise. Auch das Nachrüsten ist leicht durchführbar, da keine Lötarbeiten nötig sind. Die Verdrahtung ist in der gedruckten Schaltung bereits vorgegeben.The invention has for its object to integrate the lock switch in the key switch arrangement. This problem is solved by the measures specified in the characterizing part of
Die Erfindung wird nachstehend an Ausführungsbeispielen näher beschrieben. In der Zeichnung zeigt:
- Fig. 1 einen erfindungsgemässen Schlossschalter in neutraler Stellung zwischen zwei Schaltmatten-Domen, im Querschnitt;
- Fig. 2 den gleichen Schlossschalter wie in Fig.1, jedoch in Betätigungsstellung über einem Dom der Schaltmatte;
- Fig. 3 eine andere Ausführung des Schlossschalters in unbetätigter Stellung über einem Dom der Schaltmatte und
- Fig. 4 den Schlossschalter nach Fig. 3 in betätigter Stellung.
- Figure 1 shows a lock switch according to the invention in a neutral position between two safety mat domes, in cross section.
- Figure 2 shows the same lock switch as in Figure 1, but in the operating position over a dome of the switch mat.
- Fig. 3 shows another embodiment of the lock switch in the unactuated position over a dome of the switch mat and
- Fig. 4 shows the lock switch of Fig. 3 in the actuated position.
Bei der Tastschalteranordnung nach den Fig. 1 und 2 ist über einer gedruckten Schaltung 4 mit den festen Kontakten 8 und Leiterbahnen eine Schaltmatte 5 mit domartigen Wölbungen (Dome 6) angeordnet. Die gedruckte Schaltung 4 wird von einer Leiterplatte oder einer Leiterfolie gebildet. Die Schaltmatte 5 besteht aus einem elastischen, gummiartigen Kunststoff.1 and 2, a
Im Innern der Dome 6 der Schaltmatte 5 sind die beweglichen Kontakte 7 angebracht, die mit den festen Kontakten 8 der gedruckten Schaltung 4 zusammenwirken. Bei Verwendung der Anordnung in einem Tastwahlblockfür Fernsprechapparate werden die Dome durch Druckknöpfe betätigt, die jeweils über ihnen stehen, in den Figuren aber nicht dargestellt sind.In the interior of the
Zwischen den Domen 6 ist ein Schlossschalter 1 angeordnet, dessen Schliesszylinder 2 am unteren Ende einen drehbaren Schaltnocken 3 besitzt. Die Drehung des Schliesszylinders und seines Schaltnockens erfolgt, wie üblich, mittels eines (nicht gezeigten) Schlüssels. In Fig. 1 steht der Schaltnocken 3 in einer neutralen Mittelstellung zwischen zwei Domen 6 der Schaltmatte 5. Wie der Doppelpfeil andeutet, kann er nach beiden Seiten um seine Achse gedreht werden. In Fig. 2 ist er nach links gedreht und hat dabei den linken Dom 6 niedergedrückt, so dass dessen Kontakt 7 mit dem Kontakt 8 der gedruckten Schaltung in Berührung kommt. Die dem Schaltschloss zugeordneten Dome 6 sind zusätzlich zu den tastenbetätigten Domen auf der Schaltmatte vorgesehen.A
In der Regel reichen zwei, doch können ohne weiteres auch vier Dome so um den Schliesszylinder angebracht sein, dass sie mit seinem Schaltnocken 3 betätigbar sind. Wenn der Schlossschalter 1 überhaupt nicht benötigt wird, so wird lediglich der Schliesszylinder weggelassen und die Öffnung in der Bedienplattedurch einen Blindstopfen verschlossen (nicht dargestellt). Umgekehrt wird beim Nachrüsten der Blindstopfen durch einen Schlossschalter ersetzt.As a rule, two are sufficient, but four domes can easily be attached around the locking cylinder in such a way that they can be actuated with its
Bei der Ausführung nach den Fig. 3 und 4 ist im Gegensatz zur zuvor beschriebenen Ausführung der Schlossschalter 1 koaxial über einem Dom 6 der Schaltmatte 5 angebracht. Es kann also nur ein Dom betätigt werden.In the embodiment according to FIGS. 3 and 4, in contrast to the embodiment described above, the
Der Schaltnocken 3 des Schliesszylinders 2 besteht hier in einer Abschrägung des unteren Endes des drehbaren Teiles des Schlosschalters. Diesem Schaltnocken 3 steht das gleichförmig angeschrägte Ende eines koaxial angeordneten Druckstückes 9 gegenüber, das nur axial bewegbar gelagert ist. Wird nun der Schaltnocken 3 von der in Fig. 3 gezeigten Stellung in die aus Fig. 4 ersichtliche gedreht, so wird das Druckstück 9 gemäss der Steigung der Schrägen an Nocken und Druckstück nach unten gegen den Dom 6 bewegt und dieser dadurch eingedrückt, so dass sich die Kontakte 7 und 8 berühren. Beim Zurückdrehen des Schlossschalters 1 geht das Druckstück 9 in seine Ausgangslage zurück.The
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3314772 | 1983-04-23 | ||
DE19833314772 DE3314772A1 (en) | 1983-04-23 | 1983-04-23 | KEY SWITCH ARRANGEMENT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0123207A1 EP0123207A1 (en) | 1984-10-31 |
EP0123207B1 true EP0123207B1 (en) | 1986-08-06 |
Family
ID=6197185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84104030A Expired EP0123207B1 (en) | 1983-04-23 | 1984-04-11 | Pushbutton switch arrangement |
Country Status (6)
Country | Link |
---|---|
US (1) | US4536628A (en) |
EP (1) | EP0123207B1 (en) |
JP (1) | JPS6035425A (en) |
KR (1) | KR920007746B1 (en) |
DE (2) | DE3314772A1 (en) |
ES (1) | ES278969Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10151053B4 (en) * | 2001-10-16 | 2012-05-10 | Leopold Kostal Gmbh & Co. Kg | circuitry |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU597598B2 (en) * | 1985-10-17 | 1990-06-07 | Bartlem Pty Ltd | Improvements to switch assemblies |
DE3724530C1 (en) * | 1987-07-24 | 1989-01-12 | Triumph Adler Ag | Key switch for electrical or electronic devices |
JPH079460Y2 (en) * | 1987-10-01 | 1995-03-06 | 株式会社ト−キン | Block filter for power line communication equipment |
US4918264A (en) * | 1987-12-26 | 1990-04-17 | Asahi Kogaku Kogyo K.K. | Actuating mechanism and multiposition rubber or membrane switch device |
US5089677A (en) * | 1987-12-26 | 1992-02-18 | Asahi Kogaku Kogyo K.K. | Switching dial and finger rest |
US4970512A (en) * | 1989-04-03 | 1990-11-13 | Wood Lawson A | Printed circuit rotary switch with decoder |
DE4126042A1 (en) * | 1991-08-06 | 1993-02-18 | Ruf Kg Wilhelm | Electrical rotary selector switch for keyboard of e.g. pocket calculator, remote controller - has bridging contact formed on flexible mat that is locally deflected by roller to bridge circuit board contacts |
US6148183A (en) * | 1997-12-31 | 2000-11-14 | Motorola, Inc. | Switch assembly for an electronic device |
US6797907B1 (en) | 2003-11-18 | 2004-09-28 | Emerson Electric Co. | Rotary switch assembly |
EP2149169B8 (en) * | 2007-05-08 | 2017-10-18 | BS&B Innovations Limited | Pressure response membrane |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1712981A (en) * | 1925-12-05 | 1929-05-14 | Continuous Train Control Corp | Railway-train-control system |
FR818829A (en) * | 1936-06-10 | 1937-10-04 | Saintagne | Key switch |
US3243528A (en) * | 1964-05-28 | 1966-03-29 | Gen Electric | Dual action electrical switch |
DE1640578A1 (en) * | 1967-12-30 | 1970-12-17 | Industriebedarf Handelsgmbh | Key operated safety switch |
AU1105170A (en) * | 1969-02-18 | 1971-08-05 | Joseph Lucas (Industries) Limited | Electrical switches |
US3651298A (en) * | 1970-08-27 | 1972-03-21 | Paul H Omohundro | Weather and shock proof switch casing with insertable key switch operating member |
JPS52149375A (en) * | 1976-06-07 | 1977-12-12 | Suwa Seikosha Kk | Keyboard |
US4403315A (en) * | 1979-07-23 | 1983-09-06 | Citizen Watch Co., Ltd. | Electronic timepiece assembly |
JPS5628543U (en) * | 1979-08-07 | 1981-03-17 | ||
DE3104103A1 (en) * | 1981-02-06 | 1982-08-19 | Fa. Albrecht Jung, 5885 Schalksmühle | Waterproof, electrical installation apparatus having a lock cylinder |
US4396812A (en) * | 1981-12-02 | 1983-08-02 | Gould, Inc. | Electric, key-controlled switch lock |
-
1983
- 1983-04-23 DE DE19833314772 patent/DE3314772A1/en not_active Withdrawn
-
1984
- 1984-04-11 DE DE8484104030T patent/DE3460423D1/en not_active Expired
- 1984-04-11 US US06/598,947 patent/US4536628A/en not_active Expired - Fee Related
- 1984-04-11 EP EP84104030A patent/EP0123207B1/en not_active Expired
- 1984-04-20 JP JP59078745A patent/JPS6035425A/en active Pending
- 1984-04-23 KR KR1019840002142A patent/KR920007746B1/en not_active IP Right Cessation
- 1984-04-23 ES ES1984278969U patent/ES278969Y/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10151053B4 (en) * | 2001-10-16 | 2012-05-10 | Leopold Kostal Gmbh & Co. Kg | circuitry |
Also Published As
Publication number | Publication date |
---|---|
KR840008522A (en) | 1984-12-15 |
JPS6035425A (en) | 1985-02-23 |
ES278969Y (en) | 1987-11-16 |
DE3460423D1 (en) | 1986-09-11 |
ES278969U (en) | 1986-05-01 |
US4536628A (en) | 1985-08-20 |
EP0123207A1 (en) | 1984-10-31 |
DE3314772A1 (en) | 1984-10-25 |
KR920007746B1 (en) | 1992-09-16 |
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