EP0544124A2 - Push-button key pad made from synthetic material, in particular for a communication equipment terminal - Google Patents

Push-button key pad made from synthetic material, in particular for a communication equipment terminal Download PDF

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Publication number
EP0544124A2
EP0544124A2 EP19920118755 EP92118755A EP0544124A2 EP 0544124 A2 EP0544124 A2 EP 0544124A2 EP 19920118755 EP19920118755 EP 19920118755 EP 92118755 A EP92118755 A EP 92118755A EP 0544124 A2 EP0544124 A2 EP 0544124A2
Authority
EP
European Patent Office
Prior art keywords
spring arms
push
pushbuttons
pushbutton
adjacent
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.)
Granted
Application number
EP19920118755
Other languages
German (de)
French (fr)
Other versions
EP0544124B1 (en
EP0544124A3 (en
Inventor
Harald Dipl.-Ing. Bader
Reinhold Kiesewetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0544124A2 publication Critical patent/EP0544124A2/en
Publication of EP0544124A3 publication Critical patent/EP0544124A3/en
Application granted granted Critical
Publication of EP0544124B1 publication Critical patent/EP0544124B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/062—Maintenance or repair facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/002—Key modules joined to form button rows
    • H01H2233/004—One molded part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/002—Key modules joined to form button rows
    • H01H2233/004—One molded part
    • H01H2233/006—Separating individual keys after mounting

Definitions

  • the invention relates to a push button panel made of plastic, in particular for communication terminals, with a plurality of interconnected push buttons.
  • Such a push button panel is known for example from DE 30 14 996 A1.
  • the use of complete pushbuttons significantly simplifies assembly compared to assembly with individual buttons.
  • a disadvantage of the known pushbutton fields is that if a part of the pushbutton field breaks in the installed state, functions of individual keys are lost, which results in an exchange of the entire pushbutton field.
  • the object of the present invention is to provide a pushbutton field of the type mentioned, in which the function of the individual keys is maintained in the event of a break in the installed state.
  • the individual keys are connected to one another via the connecting webs in such a way that they form a coherent, easy-to-assemble push-button field. Due to the tapering provided according to the invention when connecting the lower ends of the spring arms to the connecting webs, a predetermined breaking point is created, at which a break occurs when the push buttons are overused. Due to the construction according to the invention, the function of the single key is not impaired by this break, since the function of the spring arm is fully retained. In the assembled state, a preload is achieved via the spring arms, which prevents rattling noises of the individual pushbuttons even under unfavorable operating conditions. Furthermore, the spring arms automatically reset the key bodies independently of built-in switching elements.
  • An embodiment of the invention is characterized in that the spring arms run parallel to the plane of the end faces of the push buttons.
  • This embodiment represents an alternative arrangement of the spring arms to the arrangement of the spring arms according to claim 1.
  • An expedient development of the push-button panel according to the invention is characterized in that the spring arms and the connecting webs form a uniform grid arrangement for each keypad. This results in a simple geometry of the pushbutton field.
  • buttons extend over two or more whole raster units. In this way it is ensured that when using keys of different sizes there is no need to change the arrangement of the spring arms and connecting webs.
  • the invention will be explained in more detail below with the aid of two exemplary pushbutton fields shown in the drawing.
  • FIG. 1 and 2 show the structure according to the invention of a pushbutton field consisting of twelve pushbuttons 1 of the same size.
  • Elastic spring arms 4 are formed on two diagonally opposite lower corners of each push button 1.
  • the spring arms 4 of the individual push buttons 1 are arranged such that directly adjacent spring arms 4 of two push buttons 1 lying next to one another are directed obliquely downwards in the opposite direction. From the two FIGURES it can also be seen that the spring arms 4 of the push buttons 1 are arranged in such a way that the upper and lower ends of the spring arms 4 lie directly opposite each other between adjacent rows of buttons. All lower ends of the elastic spring arms 4 are connected to connecting webs 6 running transversely to the longitudinal direction of the spring arms 4 via tapered portions 12. These tapers 12 can be seen particularly clearly in FIG. 4.
  • FIGS. 1 and 2 show a push button field with eight different push buttons 2 and 3.
  • the structure corresponds in principle to the structure of the push button field shown in FIGS. 1 and 2. It should only be shown here in connection with the first two FIGURES that the spring arms 4 and 5 and the connecting webs 6 and 7 form a uniform grid arrangement, regardless of the size of the pushbutton field or the size of the individual pushbuttons, in order to provide a simple geometry receive. Different sized pushbuttons, e.g. B. 3, are used, these larger push buttons, z. B. 3, each over two or more whole grid units of the grid arrangement.

Landscapes

  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)

Abstract

Obliquely downwardly running spring arms are integrally formed on the individual push-button keys. The lower ends of these spring arms are connected via tapers to connecting webs. As a result of the tapers, the weak point of this arrangement comes to rest such that the operation of the individual keys is maintained in the event of a fracture in the installed state. <IMAGE>

Description

Die Erfindung betrifft ein Drucktastenfeld aus Kunststoff, insbesondere für Kommunikationsendgeräte, mit einer Vielzahl von untereinander verbundenen Drucktasten.The invention relates to a push button panel made of plastic, in particular for communication terminals, with a plurality of interconnected push buttons.

Ein derartiges Drucktastenfeld ist zum Beispiel aus der DE 30 14 996 A1 bekannt. Durch die Verwendung kompletter Drucktastenfelder wird eine wesentliche Montagevereinfachung gegenüber einer Montage mit einzelnen Tasten erreicht. Ein Nachteil der bekannten Drucktastenfelder besteht darin, daß im Falle eines Bruches eines Teils des Drucktastenfeldes in eingebautem Zustand Funktionen von Einzeltasten verloren gehen, was einen Austausch des gesamten Drucktastenfeldes nach sich zieht.Such a push button panel is known for example from DE 30 14 996 A1. The use of complete pushbuttons significantly simplifies assembly compared to assembly with individual buttons. A disadvantage of the known pushbutton fields is that if a part of the pushbutton field breaks in the installed state, functions of individual keys are lost, which results in an exchange of the entire pushbutton field.

Aufgabe der vorliegenden Erfindung ist es, ein Drucktastenfeld der eingangs genannten Art anzugeben, bei dem im Falle eines Bruches in eingebautem Zustand die Funktion der Einzeltasten aufrechterhalten bleibt.The object of the present invention is to provide a pushbutton field of the type mentioned, in which the function of the individual keys is maintained in the event of a break in the installed state.

Diese Aufgabe wird für ein Drucktastenfeld der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß an zwei diagonal gegenüberliegenden unteren Ecken jeder Drucktaste einer Tastenreihe schräg nach unten und parallel zur Ebene der Seitenflächen verlaufende elastische Federarme angeformt sind, wobei jeweils direkt benachbarte Federarme zweier Drucktasten in entgegengesetzter Richtung schräg nach unten gerichtet sind, daß die Federarme der Drucktasten benachbarter Reihen jeweils so angeordnet sind, daß sich jeweils die oberen bzw. die oberen Enden der Federarme direkt gegenüberliegen, und daß jeweils alle benachbarten und alle benachbarten und gegenüberliegenden unteren Enden der Federarme über Verjüngungen mit quer zur Längsrichtung der Federarme liegenden Verbindungsstegen verbunden sind.This object is achieved according to the invention for a pushbutton array of the type mentioned at the outset in that resilient spring arms extending obliquely downward and parallel to the plane of the side surfaces are formed on two diagonally opposite lower corners of each pushbutton in a row of pushbuttons, with directly adjacent spring arms of two pushbuttons in the opposite direction are directed obliquely downwards that the spring arms of the pushbuttons of adjacent rows are each arranged so that the upper and the upper ends of the spring arms are directly opposite each other, and that all neighboring and all neighboring and opposite lower ends of the spring arms are connected via tapering with connecting webs lying transversely to the longitudinal direction of the spring arms.

Über die Verbindungsstege werden die einzelnen Tasten so miteinander verbunden, daß sie ein zusammenhängendes, leicht montierbares Drucktastenfeld bilden. Aufgrund der erfindungsgemäß vorgesehenen Verjüngungen bei der Verbindung der unteren Enden der Federarme mit den Verbindungsstegen wird eine Sollbruchstelle geschaffen, an welcher bei einer Überbeanspruchung der Drucktasten ein Bruch auftritt. Aufgrund der erfindungsgemäßen Konstruktion wird aber durch diesen Bruch die Funktion der Einzeltaste nicht beeinträchtigt, da die Funktion des Federarmes voll erhalten bleibt. Über die Federarme wird in zusammengebautem Zustand eine Vorspannung erreicht, wodurch auch unter ungünstigen Betriebsbedingungen Klappergeräusche der einzelnen Drucktasten vermieden werden. Weiter wird durch die Federarme eine selbsttätige Rückstellung der Tastenkörper unabhängig von untergebauten Schaltelementen erreicht.The individual keys are connected to one another via the connecting webs in such a way that they form a coherent, easy-to-assemble push-button field. Due to the tapering provided according to the invention when connecting the lower ends of the spring arms to the connecting webs, a predetermined breaking point is created, at which a break occurs when the push buttons are overused. Due to the construction according to the invention, the function of the single key is not impaired by this break, since the function of the spring arm is fully retained. In the assembled state, a preload is achieved via the spring arms, which prevents rattling noises of the individual pushbuttons even under unfavorable operating conditions. Furthermore, the spring arms automatically reset the key bodies independently of built-in switching elements.

Eine Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Federarme parallel zur Ebene der Stirnflächen der Drucktasten verlaufen. Diese Ausgestaltung stellt eine alternative Anordnung der Federarme zur Anordnung der Federarme nach Anspruch 1 dar.An embodiment of the invention is characterized in that the spring arms run parallel to the plane of the end faces of the push buttons. This embodiment represents an alternative arrangement of the spring arms to the arrangement of the spring arms according to claim 1.

Eine zweckmäßige Weiterbildung des erfindungsgemäßen Drucktastenfeldes ist dadurch gekennzeichnet, daß die Federarme und die Verbindungsstege für jedes Tastenfeld eine gleichmäßige Rasteranordnung bilden. Dadurch wird eine einfache Geometrie des Drucktastenfeldes erreicht.An expedient development of the push-button panel according to the invention is characterized in that the spring arms and the connecting webs form a uniform grid arrangement for each keypad. This results in a simple geometry of the pushbutton field.

Eine andere zweckmäßige Ausgestaltung des erfindungsgemäßen Drucktastenfeldes ist dadurch gekennzeichnet, daß größere Tasten sich über zwei oder mehrere ganze Rastereinheiten erstrecken. Auf diese Weise wird sichergestellt, daß bei der Verwendung von unterschiedlich großen Tasten keine Änderung der Anordnung der Federarme und Verbindungsstege erfolgen muß. Anhand zweier in der Zeichnung dargestellter beispielhafter Drucktastenfelder soll die Erfindung nachfolgend näher erläutert werden.Another expedient embodiment of the push button field according to the invention is characterized in that larger buttons extend over two or more whole raster units. In this way it is ensured that when using keys of different sizes there is no need to change the arrangement of the spring arms and connecting webs. The invention will be explained in more detail below with the aid of two exemplary pushbutton fields shown in the drawing.

Es zeigen

FIG 1
eine perspektivische Draufsicht eines Drucktastenfeldes mit zwölf gleich großen Drucktasten,
FIG 2
eine perspektivische Ansicht des in FIG 1 dargestellten Drucktastenfeldes von unten,
FIG 3
eine perspektivische Draufsicht eines Drucktastenfeldes mit acht unterschiedlich großen Drucktasten, und
FIG 4
einen Schnitt durch zwei Drucktasten des in FIG 3 dargestellten Drucktastenfeldes.
Show it
FIG. 1
3 shows a perspective top view of a pushbutton field with twelve pushbuttons of the same size,
FIG 2
2 shows a perspective view of the pushbutton field shown in FIG. 1 from below,
FIG 3
a top perspective view of a push button panel with eight different sized push buttons, and
FIG 4
a section through two push buttons of the push button panel shown in Figure 3.

FIG 1 und FIG 2 zeigen den erfindungsgemäßen Aufbau eines aus zwölf gleich großen Drucktasten 1 bestehenden Drucktastenfeldes. An jeweils zwei diagonal gegenüberliegenden unteren Ecken jeder Drucktaste 1 sind elastische Federarme 4 angeformt. Dabei sind die Federarme 4 der einzelnen Drucktasten 1 so angeordnet, daß jeweils direkt benachbarte Federarme 4 zweier nebeneinanderliegender Drucktasten 1 in entgegengesetzter Richtung schräg nach unten gerichtet sind. Aus den beiden FIGUREN ist weiterhin ersichtlich, daß die Federarme 4 der Drucktasten 1 so angeordnet sind, daß sich zwischen benachbarten Tastenreihen jeweils die oberen bzw. die unteren Enden der Federarme 4 direkt gegenüberliegen. Alle unteren Enden der elastischen Federarme 4 sind mit quer zur Längsrichtung der Federarme 4 verlaufenden Verbindungsstegen 6 über Verjüngungen 12 verbunden. Diese Verjüngungen 12 sind besonders deutlich der FIG 4 zu entnehmen.1 and 2 show the structure according to the invention of a pushbutton field consisting of twelve pushbuttons 1 of the same size. Elastic spring arms 4 are formed on two diagonally opposite lower corners of each push button 1. The spring arms 4 of the individual push buttons 1 are arranged such that directly adjacent spring arms 4 of two push buttons 1 lying next to one another are directed obliquely downwards in the opposite direction. From the two FIGURES it can also be seen that the spring arms 4 of the push buttons 1 are arranged in such a way that the upper and lower ends of the spring arms 4 lie directly opposite each other between adjacent rows of buttons. All lower ends of the elastic spring arms 4 are connected to connecting webs 6 running transversely to the longitudinal direction of the spring arms 4 via tapered portions 12. These tapers 12 can be seen particularly clearly in FIG. 4.

Mit Hilfe der Verbindungsstege 6 werden alle Einzeltasten 1 zu einem zusammenhängenden Drucktastenfeld zusammengefügt. Durch die Verjüngungen 12 werden Sollbruchstellen eingerichtet, die bei einer Überbeanspruchung der Drucktasten 1 nachgeben und brechen. Bei einem Bruch der Verjüngung 12 bleibt aber die Funktion der Einzeltaste aufrechterhalten, da die Funktion des Federarms 4 nicht beeinträchtigt wird, welcher mit seinem abgerundeten unteren Ende weiterhin auf der hier nicht dargestellten Grundplatte aufliegt, so daß die Federeigenschaften der Drucktaste 1 erhalten bleiben. Für eine Begrenzung des Tastenhubs sorgen die Abstandshalter 8 und 9.With the help of the connecting webs 6, all the individual keys 1 are combined to form a coherent pushbutton field. By the tapered portions 12 are set up predetermined breaking points which yield and break when the pushbuttons 1 are overused. If the taper 12 breaks, the function of the single button is maintained, since the function of the spring arm 4 is not impaired, which continues to rest with its rounded lower end on the base plate, not shown here, so that the spring properties of the push button 1 are retained. The spacers 8 and 9 limit the key travel.

Die FIG 2 und 3 zeigen ein Drucktastenfeld mit acht unterschiedlichen Drucktasten 2 und 3. Der Aufbau entspricht prinzipiell dem Aufbau des in den FIG 1 und 2 dargestellten Drucktastenfeldes. Es soll hier lediglich in Verbindung mit den beiden ersten FIGUREN dargestellt werden, daß die Federarme 4 und 5 sowie die Verbindungsstege 6 und 7 unabhängig von der Größe des Drucktastenfeldes bzw. von der Größe der einzelnen Drucktasten eine gleichmäßige Rasteranordnung bilden, um eine einfache Geometrie zu erhalten. Sollen unterschiedlich große Drucktasten, z. B. 3, verwendet werden, so erstrecken sich diese größeren Drucktasten, z. B. 3, jeweils über zwei oder auch mehrere ganze Rastereinheiten der Rasteranordnung.2 and 3 show a push button field with eight different push buttons 2 and 3. The structure corresponds in principle to the structure of the push button field shown in FIGS. 1 and 2. It should only be shown here in connection with the first two FIGURES that the spring arms 4 and 5 and the connecting webs 6 and 7 form a uniform grid arrangement, regardless of the size of the pushbutton field or the size of the individual pushbuttons, in order to provide a simple geometry receive. Different sized pushbuttons, e.g. B. 3, are used, these larger push buttons, z. B. 3, each over two or more whole grid units of the grid arrangement.

Aus dem in FIG 4 dargestellten Schnitt durch zwei unterschiedlich große Drucktasten 2 und 3 ergibt sich dies sehr deutlich. Gleichzeitig sind der FIG 4 sehr deutlich die Verjüngungen 12 zu entnehmen.This results very clearly from the section through two different sized pushbuttons 2 and 3 shown in FIG. At the same time, the tapering 12 can be seen very clearly in FIG.

Claims (4)

Drucktastenfeld aus Kunststoff, insbesondere für Kommunikationsendgeräte, mit einer Vielzahl von untereinander verbundenen Drucktasten,
dadurch gekennzeichnet,
daß an zwei diagonal gegenüberliegenden unteren Ecken jeder Drucktaste (1, 2, 3) einer Tastenreihe schräg nach unten und parallel zur Ebene der Seitenflächen verlaufene elastische Federarme (4, 5) angeformt sind, wobei jeweils direkt benachbarte Federarme (4, 5) zweier Drucktasten (1, 2, 3) in entgegengesetzter Richtung schräg nach unten gerichtet sind, daß die Federarme (4, 5) der Drucktasten (1, 2, 3) benachbarter Reihen jeweils so angeordnet sind, daß sich jeweils die oberen bzw. die unteren Enden der Federarme (4, 5) direkt gegenüberliegen, und daß jeweils alle benachbarten und alle benachbarten und gegenüberliegenden unteren Enden der Federarme (4, 5) über Verjüngungen (12) mit quer zur Längsrichtung der Federarme (4, 5) liegenden Verbindungsstegen (6, 7) verbunden sind.Pushbutton panel made of plastic, in particular for communication terminals, with a large number of interconnected pushbuttons,
characterized,
that resilient spring arms (4, 5) are formed on two diagonally opposite lower corners of each pushbutton (1, 2, 3) of a row of buttons obliquely downwards and parallel to the plane of the side surfaces, each directly adjacent spring arms (4, 5) of two pushbuttons (1, 2, 3) are directed obliquely downwards in the opposite direction, that the spring arms (4, 5) of the push buttons (1, 2, 3) of adjacent rows are each arranged in such a way that the upper and the lower ends, respectively of the spring arms (4, 5) lie directly opposite, and that in each case all adjacent and all adjacent and opposite lower ends of the spring arms (4, 5) via tapered portions (12) with connecting webs (6, 6) lying transversely to the longitudinal direction of the spring arms (4, 5) 7) are connected. Drucktastenfeld nach Anspruch 1,
dadurch gekennzeichnet,
daß die Federarme (4, 5) parallel zur Ebene der Stirnflächen der Drucktasten (1, 2, 3) verlaufen.Push-button panel according to claim 1,
characterized,
that the spring arms (4, 5) run parallel to the plane of the end faces of the push buttons (1, 2, 3). Drucktastenfeld nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Federarme (4, 5) und die Verbindungsstege (6, 7) für jedes Tastenfeld eine gleichmäßige Rasteranordnung bilden.Push-button panel according to claim 1 or 2,
characterized,
that the spring arms (4, 5) and the connecting webs (6, 7) form a uniform grid arrangement for each keypad. Drucktastenfeld nach Anspruch 3,
dadurch gekennzeichnet,
daß größere Drucktasten (3) sich über zwei oder mehrere ganze Rastereinheiten erstrecken.Push-button panel according to claim 3,
characterized,
that larger pushbuttons (3) extend over two or more whole raster units.
EP92118755A 1991-11-26 1992-11-02 Push-button key pad made from synthetic material, in particular for a communication equipment terminal Expired - Lifetime EP0544124B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114712U DE9114712U1 (en) 1991-11-26 1991-11-26 Plastic pushbutton panel, especially for communication terminals
DE9114712U 1991-11-26

Publications (3)

Publication Number Publication Date
EP0544124A2 true EP0544124A2 (en) 1993-06-02
EP0544124A3 EP0544124A3 (en) 1993-10-20
EP0544124B1 EP0544124B1 (en) 1997-03-05

Family

ID=6873658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118755A Expired - Lifetime EP0544124B1 (en) 1991-11-26 1992-11-02 Push-button key pad made from synthetic material, in particular for a communication equipment terminal

Country Status (5)

Country Link
EP (1) EP0544124B1 (en)
AT (1) ATE149736T1 (en)
DE (2) DE9114712U1 (en)
DK (1) DK0544124T3 (en)
ES (1) ES2098418T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1596406A1 (en) * 2004-05-15 2005-11-16 Diehl AKO Stiftung &amp; Co. KG Key cap assembly
DE102008038567A1 (en) 2008-08-20 2010-02-25 Leopold Kostal Gmbh & Co. Kg Operating elements arrangement for push-button or pressure switch of electrical or electronic device, has connecting section connected to bar, and support forming swivel bearing for operating elements between bar and connecting section

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9114712U1 (en) * 1991-11-26 1992-03-19 Siemens AG, 8000 München Plastic pushbutton panel, especially for communication terminals
DE10203400C1 (en) * 2002-01-29 2003-06-18 Siemens Ag Keypad arrangement for mobile telephones, comprises two inter-engaging sets of coupled keytops, with three-component switching unit below
DE102007045866B3 (en) * 2007-09-25 2008-10-23 Albrecht Jung Gmbh & Co. Kg Actuating buttons assembly arrangement for cover part of electrical installation device, has locking unit formed on buttons, and another locking unit formed on cover part, where locking units stay in effective connection with each other

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054270A (en) * 1979-06-22 1981-02-11 Citizen Watch Co Ltd Push button assembly
DE2933150A1 (en) * 1979-08-16 1981-02-26 Licentia Gmbh Key pad press button support and operation - has double hinge action with intermediate support frame to site hinges 180 degrees apart
GB2072584A (en) * 1980-03-24 1981-10-07 Int Standard Electric Corp Push button key set
GB2087154A (en) * 1980-11-04 1982-05-19 Standard Telephones Cables Ltd Keypad button
DE9114712U1 (en) * 1991-11-26 1992-03-19 Siemens AG, 8000 München Plastic pushbutton panel, especially for communication terminals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054270A (en) * 1979-06-22 1981-02-11 Citizen Watch Co Ltd Push button assembly
DE2933150A1 (en) * 1979-08-16 1981-02-26 Licentia Gmbh Key pad press button support and operation - has double hinge action with intermediate support frame to site hinges 180 degrees apart
GB2072584A (en) * 1980-03-24 1981-10-07 Int Standard Electric Corp Push button key set
GB2087154A (en) * 1980-11-04 1982-05-19 Standard Telephones Cables Ltd Keypad button
DE9114712U1 (en) * 1991-11-26 1992-03-19 Siemens AG, 8000 München Plastic pushbutton panel, especially for communication terminals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1596406A1 (en) * 2004-05-15 2005-11-16 Diehl AKO Stiftung &amp; Co. KG Key cap assembly
CN100541692C (en) * 2004-05-15 2009-09-16 迪尔阿扣基金两合公司 Key cap assembly
DE102008038567A1 (en) 2008-08-20 2010-02-25 Leopold Kostal Gmbh & Co. Kg Operating elements arrangement for push-button or pressure switch of electrical or electronic device, has connecting section connected to bar, and support forming swivel bearing for operating elements between bar and connecting section
DE102008038567B4 (en) 2008-08-20 2018-08-16 Leopold Kostal Gmbh & Co. Kg Arrangement of interconnected actuators for pushbuttons or pressure switches

Also Published As

Publication number Publication date
ES2098418T3 (en) 1997-05-01
EP0544124B1 (en) 1997-03-05
ATE149736T1 (en) 1997-03-15
EP0544124A3 (en) 1993-10-20
DK0544124T3 (en) 1997-07-21
DE9114712U1 (en) 1992-03-19
DE59208111D1 (en) 1997-04-10

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