EP0072446A1 - Flat switch disposition - Google Patents

Flat switch disposition Download PDF

Info

Publication number
EP0072446A1
EP0072446A1 EP82106458A EP82106458A EP0072446A1 EP 0072446 A1 EP0072446 A1 EP 0072446A1 EP 82106458 A EP82106458 A EP 82106458A EP 82106458 A EP82106458 A EP 82106458A EP 0072446 A1 EP0072446 A1 EP 0072446A1
Authority
EP
European Patent Office
Prior art keywords
wires
conductors
switch arrangement
conductor
layer
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.)
Withdrawn
Application number
EP82106458A
Other languages
German (de)
French (fr)
Inventor
Klaus Dieter Lamm
Dieter Michalski
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.)
TDK Micronas GmbH
Rudolf Schadow GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
Rudolf Schadow GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, Rudolf Schadow GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of EP0072446A1 publication Critical patent/EP0072446A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/785—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 characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • 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
    • H01H13/702—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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/03—Composite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/008—Wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H01H2219/03—Printed information in transparent keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/022—Modular assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/024—Packing between substrate and membrane
    • H01H2229/028—Adhesive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/024—Packing between substrate and membrane
    • H01H2229/03—Laminating

Definitions

  • the invention relates to a flat switch arrangement with matrix-shaped, pressure-actuated switches, in which a first set of mutually parallel conductors and a second set of mutually parallel conductors are arranged on a base of insulating material such that the conductors of the second set perpendicular to those of the first set, a cover sheet of insulating material on the second set of conductors and an elastic layer of insulating material between the two sets of conductors, which has holes at the intersections of the conductors of the first conductor set with those of the second conductor set, so that by pressure the cover film in the area of the crossing points, the crossing conductors can be brought into contact with one another.
  • Such a switch arrangement is known for example from DE-AS 1 640 444.
  • the conductors are plated onto the underlying insulating material layer.
  • the layers of insulating material must be provided with a metal layer, which is then coated with a light-sensitive lacquer, followed by a development process and an etching process, after which the light-sensitive lacquer must finally be removed.
  • the plated conductors still have to be provided with electrical connections.
  • the known embodiment has the further disadvantage that at least one of the insulating material layers coated with conductors must be bent for the purpose of contacting the intersecting conductors. With frequent actuation, there is a risk that the thin conductor tracks become detached from the load-bearing insulating material layer.
  • the object of the invention is to design a switch arrangement of the type mentioned at the outset in such a way that it can be easily and automatically manufactured and at the same time has very robust contacts.
  • the base made of insulating material. This consists either of a plate or a film made of a suitable insulating material, for example plastic.
  • the first set of conductors consists of tensioned elastic wires 2 which run parallel to one another.
  • the second set of conductors also consists of tensioned elastic wires 7, which, however, are arranged at right angles to the wires 2.
  • An elastic insulating material layer 3 is arranged between the wires 2 and 7 and has holes 4 at the crossing points of the conductors 2 and 7.
  • the layer 3 can consist, for example, of a foam plastic layer.
  • the layer 3 is expediently coated on both sides with adhesive layers 5 and 6.
  • the switch arrangement is covered by an insulating film 8.
  • the two sets of wires 2 and 7 are clamped in suitable holders 9, so that they are held taut and parallel to one another in the correct position.
  • the tensioned wires 2 and 7 are embedded in the adhesive layer 6 and 5 on the elastic insulating material layer 3 and at the same time the insulating material parts 1 and 8 are firmly connected to the layer 3.
  • only the wires 2 and 7 have to be cut along the edge of the arrangement. This is advantageously done in such a way that the wires protrude from at least one side of the arrangement and thus serve as connections. This completes the entire switch arrangement.
  • the wires 2 and 7 are provided, at least at the crossing points, with an electrically well-conductive cover.
  • the wires 2 and 7 can be designed as so-called sheathed wires, i.e. Wires with a core made of elastic material and an outer cover made of electrically conductive material.
  • the switch assembly In some cases it is desirable to illuminate the switch assembly. This can be done in a simple manner in that the insulating base 1 is also made of translucent material, so that the entire switch arrangement can be illuminated from the base 1. The individual contact arrangements are then clearly marked through the holes 4 in the elastic insulating material layer 3 and the symbol attached to the cover film 8 is clearly visible. Since the wires 2 and 7 need only be very thin, the passage of light is hardly influenced.
  • both wires can be arranged so close to one another instead of one wire per contact point in at least one set of wires that they are assigned to the same crossing points. In this way, double contacts are obtained when double wires are used in one of the wire sets.
  • both sets of wires can also consist of double wires.
  • Figure 2 shows a perspective view of a switch arrangement according to the invention.
  • the insulating material base 1, the elastic intermediate layer 3 and the transparent cover film 8 are connected to one another by the adhesive layers 5 and 6, the wires 2 and 7 being embedded in the adhesive layers 5 and 6, respectively.
  • the wires protrude at the edge of the arrangement as connections and the crossing points between the wires 2 and 7 are each arranged in the middle of a hole 4 in the elastic intermediate layer 3. By pressing the film 8 in the area of one of the holes 4, an electrical contact is made between the two crossing wires.

Abstract

An electrical flat switch with switch units arranged in the form of a matrix, consisting of a dielectric lower layer (1), a first set of tensioned elastic wires (2), an elastic intermediate layer (3) with holes (4), a second set of tensioned elastic wires (7), which run perpendicularly to the first set and intersect these in the region of the holes in the intermediate layer, and a covering film (8) of dielectric material. If a pressure is applied to the covering film (8) in the region of the holes (4) in the intermediate layer (3), in each case one wire of the first set comes into electrical contact with one wire of the second set. The lower layer (1) and the covering film (8) can consist of translucent material, so that the switch arrangement can be illuminated through from the lower layer. <IMAGE>

Description

Die Erfindung bezieht sich auf eine flache Schalteranordnung mit matrixförmig angeordneten, durch Druck betätigbaren Schaltern, bei der auf einer Unterlage aus Isolierstoff ein erster Satz von zueinander parallelen Leitern und darüber ein zweiter Satz von zueinander parallelen Leitern so angeordnet ist, daß die Leiter des zweiten Satzes senkrecht zu denen des ersten Satzes verlaufen, einer Deckfolie aus Isolierstoff auf dem zweiten Satz von Leitern und einer elastischen Isolierstoffschicht zwischen den beiden Leitersätzen, die an den Kreuzungsstellen der Leiter des ersten Leitersatzes mit denen des zweiten Leitersatzes Löcher hat, so daß durch einen Druck auf die Deckfolie im Bereich der Kreuzungsstellen die sich kreuzenden Leiter miteinander in - Kontakt gebracht werden können.The invention relates to a flat switch arrangement with matrix-shaped, pressure-actuated switches, in which a first set of mutually parallel conductors and a second set of mutually parallel conductors are arranged on a base of insulating material such that the conductors of the second set perpendicular to those of the first set, a cover sheet of insulating material on the second set of conductors and an elastic layer of insulating material between the two sets of conductors, which has holes at the intersections of the conductors of the first conductor set with those of the second conductor set, so that by pressure the cover film in the area of the crossing points, the crossing conductors can be brought into contact with one another.

Eine solche Schalteranordnung ist beispielsweise aus der DE-AS 1 640 444 bekannt. Die Leiter sind bei der bekannten Ausführungsform auf die darunterliegende Isolierstoffschicht aufplattiert. Zu diesem Zweck müssen die Isolierstoffschichten mit einer Metallschicht versehen werden, die dann mit einem lichtempfindlichen Lack beschichtet wird, wonach sich ein Entwicklungsvorgang und ein Ätzvorgang anschließen, nach denen schließlich der lichtempfindliche Lack entfernt werden muß. Außerdem müssen die aufplattierten Leiter noch mit elektrischen Anschlüssen versehen werden.Such a switch arrangement is known for example from DE-AS 1 640 444. In the known embodiment, the conductors are plated onto the underlying insulating material layer. For this purpose, the layers of insulating material must be provided with a metal layer, which is then coated with a light-sensitive lacquer, followed by a development process and an etching process, after which the light-sensitive lacquer must finally be removed. In addition, the plated conductors still have to be provided with electrical connections.

Abgesehen von dem umständlichen Herstellungsverfahren hat die bekannte Ausführungsform noch den weiteren Nachteil, daß zum Zweck der Kontaktierung der sich kreuzenden Leiter mindestens eine der mit Leitern beschichteten Isolierstoffschichten durchgebogen werden muß. Bei oftmaliger Betätigung besteht hierbei die Gefahr, daß sich die dünnen Leiterbahnen von der tragenden Isolierstoffschicht ablösen.Apart from the complicated manufacturing process, the known embodiment has the further disadvantage that at least one of the insulating material layers coated with conductors must be bent for the purpose of contacting the intersecting conductors. With frequent actuation, there is a risk that the thin conductor tracks become detached from the load-bearing insulating material layer.

Schließlich sind zur Herstellung verschieden großer Schalter jeweils verschiedene Ätzmasken erforderlich.Finally, different etching masks are required to manufacture switches of different sizes.

Aufgabe der Erfindung ist es, eine Schalteranordnung der eingangs genannten Art so auszugestalten, daß sie sich sehr einfach automatisch fertigen läßt und gleichzeitig sehr robuste Kontakte besitzt.The object of the invention is to design a switch arrangement of the type mentioned at the outset in such a way that it can be easily and automatically manufactured and at the same time has very robust contacts.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebenen Maßnahmen gelöst.This object is achieved by the measures specified in the characterizing part of claim 1.

Vorteilhafte Weiterbildungen der Erfindung gehen aus den Unteransprüchen hervor.Advantageous developments of the invention emerge from the subclaims.

Die Erfindung soll anhand der Figuren näher erläutert werden.

  • Figur 1 zeigt perspektivisch in Explosionsdarstellung die einzelnen Teile der Schalteranordnung gemäß der Erfindung.
  • Figur 2 zeigt in perspektivischer Anordnung eine Ausführungsform der Schalteranordnung gemäß der Erfindung.
The invention will be explained in more detail with reference to the figures.
  • Figure 1 shows an exploded perspective view of the individual parts of the switch assembly according to the invention.
  • Figure 2 shows a perspective arrangement of an embodiment of the switch arrangement according to the invention.

Die einzelnen Teile der Schalteranordnung können aus der Figur 1 entnommen werden.The individual parts of the switch arrangement can be seen in FIG. 1.

Mit 1 ist eine Unterlage aus Isolierstoff bezeichnet. Diese besteht entweder aus einer Platte oder einer Folie aus einem geeigneten Isolierstoff, beispielsweise Kunststoff. Der erste Satz von Leitern besteht aus gespannten elastischen Drähten 2, die parallel zueinander verlaufen. Der zweite Satz von Leitern besteht ebenfalls aus gespannten elastischen Drähten 7, die jedoch in rechtem Winkel zu den Drähten 2 angeordnet sind. Zwischen den Drähten 2 und 7 ist eine elastische Isolierstoffschicht 3 angeordnet, die an den Kreuzungsstellen der Leiter 2 und 7 Löcher 4 aufweist. Die Schicht 3 kann beispielsweise aus einer Schaumkunststoffschicht bestehen. Zweckmäßig ist die Schicht 3 beiderseits mit Kleberschichten 5 und 6 beschichtet. Auf der Oberseite ist die Schalteranordnung durch eine Isolierstoffolie 8 abgedeckt.With 1 is a base made of insulating material. This consists either of a plate or a film made of a suitable insulating material, for example plastic. The first set of conductors consists of tensioned elastic wires 2 which run parallel to one another. The second set of conductors also consists of tensioned elastic wires 7, which, however, are arranged at right angles to the wires 2. An elastic insulating material layer 3 is arranged between the wires 2 and 7 and has holes 4 at the crossing points of the conductors 2 and 7. The layer 3 can consist, for example, of a foam plastic layer. The layer 3 is expediently coated on both sides with adhesive layers 5 and 6. On the top, the switch arrangement is covered by an insulating film 8.

Zur Herstellung des Schalters sind die beiden Sätze von Drähten 2 und 7 in geeigneten Halterungen 9 eingespannt, so daß sie straff und zueinander parallel in der richtigen Lage gehalten sind. Zwischen die Sätze von gespannten Drähten 2 und 7 wird die gelochte und beiderseits mit einer Kleberschicht versehene Isolierstoffschicht 3 eingebracht, während unterhalb der Drähte 2 die Unterlage 1 und oberhalb der Drähte 7 die Deckfolie 8 angeordnet wird. Dann werden alle Teile zusammengepreßt und gegebenenfalls dabei erwärmt. Dabei werden die gespannten Drähte 2 und 7 in die Kleberschicht 6 bzw. 5 auf der elastischen Isolierstoffschicht 3 eingebettet und gleichzeitig werden die Isolierstoffteile 1 und 8 mit der Schicht 3 fest verbunden. Dann müssen nur noch die Drähte 2 und 7 längs des Randes der Anordnung abgeschnitten werden. Dies geschieht zweckmäßig in der Weise, daß die Drähte an mindestens einer Seite der Anordnung herausstehen und damit als Anschlüsse dienen. Damit ist auch schon die ganze Schalteranordnung fertiggestellt.To manufacture the switch, the two sets of wires 2 and 7 are clamped in suitable holders 9, so that they are held taut and parallel to one another in the correct position. The perforated insulating material layer 3, which is provided on both sides with an adhesive layer, is introduced between the sets of tensioned wires 2 and 7, while the base 1 is underneath the wires 2 and the cover film 8 is arranged above the wires 7. Then all parts are pressed together and heated if necessary. The tensioned wires 2 and 7 are embedded in the adhesive layer 6 and 5 on the elastic insulating material layer 3 and at the same time the insulating material parts 1 and 8 are firmly connected to the layer 3. Then only the wires 2 and 7 have to be cut along the edge of the arrangement. This is advantageously done in such a way that the wires protrude from at least one side of the arrangement and thus serve as connections. This completes the entire switch arrangement.

Es ist leicht ersichtlich, daß durch Variieren des Abstandes der Halterungen 9, der Anzahl der eingelegten Drähte 2 und 7 und durch Ausschneiden einer geeigneten Größe der Isolierstoffteile 1, 3 und 8 Schalter beliebiger Größe und Form in sehr einfacher Weise hergestellt werden können. Die Schalteranordnung ist vollkommen dicht und die Drähte werden durch Einbetten in die Kleberschicht in gespanntem Zustand gehalten. Bei einem Druck auf die Deckfolie 8 wird einer der Drähte 7 durchgebogen und kommt in elektrischen Kontakt mit einem der Drähte 2. Da die Drähte 7 und 2 selbst aus elastischem Material bestehen, kehren sie nach Aufhören des Druckes, auch nach vielfacher Betätigung, zuverlässig in ihre Ausgangslage zurück.It can easily be seen that by varying the distance between the brackets 9, the number of wires 2 and 7 inserted and by cutting out a suitable size of the insulating parts 1, 3 and 8 switches of any size and shape can be produced in a very simple manner. The switch arrangement is completely sealed and the wires are kept in tension by embedding in the adhesive layer. When the cover film 8 is pressed, one of the wires 7 is bent and comes into electrical contact with one of the wires 2. Since the wires 7 and 2 themselves are made of elastic material, they reliably return after the pressure has ceased, even after repeated actuation their starting position back.

Es ist zweckmäßig, auf der Deckfolie 8 die Kreuzungsstellen der Drähte in geeigneter Weise zu kennzeichnen. Vorteilhaft geschieht dies in der Weise, daß als Folie 8 eine lichtdurchlässige Folie verwendet wird, die an der Unterseite, d.h. der Seite, die den Drähten 7 zugewandt ist, mit einem entsprechenden Symbol bedruckt wird. Dieses Symbol ist dann auf der Oberseite der Folie 8 sichtbar, aber kann durch äußere Einflüsse nicht verwischt oder entfernt werden.It is expedient to mark the crossing points of the wires in a suitable manner on the cover film 8. This is advantageously done in such a way that a translucent film is used as film 8, which on the underside, that is, the side facing the wires 7 is printed with a corresponding symbol. This symbol is then visible on the top of the film 8, but cannot be blurred or removed by external influences.

Zur Erzielung eines guten elektrischen Kontaktes werden die Drähte 2 und 7, mindestens an den Kreuzungsstellen, mit einem elektrisch gut leitenden Oberzug versehen. Insbesondere können die Drähte 2 und 7 als sogenannte Manteldrähte ausgebildet sein, d.h. Drähte mit einem Kern aus elastischem Material und einem äußeren Oberzug aus elektrisch gut leitendem Material.To achieve good electrical contact, the wires 2 and 7 are provided, at least at the crossing points, with an electrically well-conductive cover. In particular, the wires 2 and 7 can be designed as so-called sheathed wires, i.e. Wires with a core made of elastic material and an outer cover made of electrically conductive material.

In manchen Fällen ist es erwünscht, die Schalteranordnung zu beleuchten. Dies kann in einfacher Weise dadurch geschehen, daß auch die Isolierstoffunterlage 1 aus lichtdurchlässigem Material hergestellt wird, so daß die ganze Schalteranordnung von der Unterlage 1 her durchleuchtet werden kann. Dabei werden dann durch die Löcher 4 in der elastischen Isolierstoffschicht 3 die einzelnen Kontaktanordnungen deutlich markiert und das auf der Deckfolie 8 angebrachte Symbol ist gut zu erkennen. Da die Drähte 2 und 7 nur sehr dünn sein brauchen, wird der Lichtdurchtritt kaum beeinflußt.In some cases it is desirable to illuminate the switch assembly. This can be done in a simple manner in that the insulating base 1 is also made of translucent material, so that the entire switch arrangement can be illuminated from the base 1. The individual contact arrangements are then clearly marked through the holes 4 in the elastic insulating material layer 3 and the symbol attached to the cover film 8 is clearly visible. Since the wires 2 and 7 need only be very thin, the passage of light is hardly influenced.

Zur Erhöhung der Kontaktsicherheit können bei mindestens einem Satz von Drähten anstelle eines Drahtes pro Kontaktstelle zwei Drähte so dicht nebeneinander angeordnet sein, daß sie den gleichen Kreuzungsstellen zugeordnet sind. Es werden auf die Weise Doppelkontakte erhalten, wenn bei einem der Drahtsätze Doppeldrähte verwendet werden. Es können aber auch beide Sätze von Drähten aus Doppeldrähten bestehen.In order to increase the reliability of the contact, two wires can be arranged so close to one another instead of one wire per contact point in at least one set of wires that they are assigned to the same crossing points. In this way, double contacts are obtained when double wires are used in one of the wire sets. However, both sets of wires can also consist of double wires.

Figur 2 zeigt in perspektivischer Darstellung eine Schalteranordnung gemäß der Erfindung. Die Isolierstoffunterlage 1, die elastische Zwischenschicht 3 und die durchsichtige Deckfolie 8 sind durch die Kleberschichten 5 und 6 zu einer festen Einheit miteinander verbunden, wobei die Drähte 2 und 7 in die Kleberschichten 5 bzw. 6 eingebettet sind. Die Drähte ragen am Rand der Anordnung als Anschlüsse heraus und die Kreuzungsstellen zwischen den Drähten 2 und 7 sind jeweils in der Mitte eines Loches 4 in der elastischen Zwischenschicht 3 angeordnet. Durch einen Druck auf die Folie 8 im Bereich eines der Löcher 4 wird ein elektrischer Kontakt zwischen den beiden sich kreuzenden Drähten hergestellt.Figure 2 shows a perspective view of a switch arrangement according to the invention. The insulating material base 1, the elastic intermediate layer 3 and the transparent cover film 8 are connected to one another by the adhesive layers 5 and 6, the wires 2 and 7 being embedded in the adhesive layers 5 and 6, respectively. The wires protrude at the edge of the arrangement as connections and the crossing points between the wires 2 and 7 are each arranged in the middle of a hole 4 in the elastic intermediate layer 3. By pressing the film 8 in the area of one of the holes 4, an electrical contact is made between the two crossing wires.

Claims (7)

1. Flache Schalteranordnung mit matrixförmig angeordneten, durch Druck betätigbaren Schaltern, bei der auf einer Unterlage aus Isolierstoff ein erster Satz von zueinander parallelen Leitern und darüber ein zweiter Satz von zueinander parallelen Leitern so angeordnet ist, daß die Leiter des ersten Satzes senkrecht zu denen des zweiten Satzes verlaufen, einer Deckfolie aus Isolierstoff auf dem zweiten Satz von Leitern und einer elastischen Isolierstoffschicht zwischen den beiden Leitersätzen, die an den Kreuzungsstellen der Leiter des ersten Leitersatzes mit denen des zweiten Leitersatzes Löcher hat, so daß durch einen Druck auf die Deckfolie im Bereich der Kreuzungsstellen die sich kreuzenden Leiter miteinander in Kontakt gebracht werden können, dadurch gekennzeichnet, daß die Leiter der beiden Leitersätze (2, 7) aus gespannten federnden Drähten bestehen.1. Flat switch arrangement with matrix-shaped, pressure-actuated switches, in which a first set of mutually parallel conductors and a second set of mutually parallel conductors is arranged on a base of insulating material so that the conductors of the first set are perpendicular to those of the second set run, a cover film made of insulating material on the second set of conductors and an elastic layer of insulating material between the two conductor sets, which has holes at the intersection of the conductors of the first conductor set with those of the second conductor set, so that pressure on the cover film in the area the crossing points, the crossing conductors can be brought into contact with one another, characterized in that the conductors of the two conductor sets (2, 7) consist of tensioned resilient wires. 2. Schalteranordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Leiterdrähte (2, 7) mindestens an den Kreuzungsstellen einen Öberzug aus elektrisch gut leitendem Material haben.2. Switch arrangement according to claim 1, characterized in that the conductor wires (2, 7) at least at the crossing points have an overcoat made of electrically highly conductive material. 3. Schalteranordnung nach Anspruch 1 - 2, dadurch gekennzeichnet, daß bei mindestens einem Leitersatz (2 bzw. 7) je zwei Drähte dicht nebeneinander angeordnet sind, so daß sie den gleichen Kreuzungsstellen zugeordnet sind.3. Switch arrangement according to claim 1-2, characterized in that in at least one conductor set (2 or 7) two wires are arranged close to each other so that they are assigned to the same crossing points. 4. Schalteranordnung nach Anspruch 1 - 3, dadurch gekennzeichnet, daß die elastische Isolierstoffschicht (3) beiderseits mit einer Kleberschicht (5, 6) versehen ist, in welche die Leiterdrähte (2, 7) eingebettet sind.4. Switch arrangement according to claims 1-3, characterized in that the elastic insulating layer (3) is provided on both sides with an adhesive layer (5, 6), in which the conductor wires (2, 7) are embedded. 5. Schalteranordnung nach Anspruch 1 - 4, dadurch gekennzeichnet, daß die Deckfolie (8) aus licht, durchlässigem Material besteht und im Bereich der Löcher (4) der elastischen Zwischenschicht (3) auf der der Zwischenschicht (3) zugewandten Seite mit Symbolen bedruckt ist.5. Switch arrangement according to claim 1-4, characterized in that the cover film (8) consists of light, permeable material and in the region of the holes (4) of the elastic intermediate layer (3) on the side facing the intermediate layer (3) with symbols printed is. 6. Schalteranordnung nach Anspruch 5, dadurch gekennzeichnet, daß auch die Isolierstoffunterlage (1) aus lichtdurchlässigem Material besteht und die Anordnung von der Unterlage (1) her beleuchtbar ist.6. Switch arrangement according to claim 5, characterized in that the insulating base (1) consists of translucent material and the arrangement of the base (1) can be illuminated. 7. Schalteranordnung nach Anspruch 1 - 6, dadurch gekennzeichnet, daß die Leiterdrähte (2, 7) an mindestens einer Seite aus der Schichtanordnung als Anschlüsse herausragen.7. Switch arrangement according to claims 1-6, characterized in that the conductor wires (2, 7) protrude on at least one side from the layer arrangement as connections.
EP82106458A 1981-08-05 1982-07-17 Flat switch disposition Withdrawn EP0072446A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813130962 DE3130962A1 (en) 1981-08-05 1981-08-05 FLAT SWITCH ARRANGEMENT
DE3130962 1981-08-05

Publications (1)

Publication Number Publication Date
EP0072446A1 true EP0072446A1 (en) 1983-02-23

Family

ID=6138632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106458A Withdrawn EP0072446A1 (en) 1981-08-05 1982-07-17 Flat switch disposition

Country Status (3)

Country Link
EP (1) EP0072446A1 (en)
JP (1) JPS5828116A (en)
DE (1) DE3130962A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619035A1 (en) * 1985-06-11 1987-01-22 Shinetsu Polymer Co TRANSPARENT TOUCH OPERATING DEVICE TO OPERATE IN CONNECTION WITH A DISPLAY DEVICE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431347A1 (en) * 1984-08-25 1986-03-06 Rolf Dipl.-Ing. 7314 Wernau Beck Pressure sensor
JPS61291133A (en) * 1985-06-20 1986-12-20 Photo Composing Mach Mfg Co Ltd Control system for display position of output unit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308253A (en) * 1965-03-25 1967-03-07 Ibm Diaphragm switch having a diaphragm supported on an incompressible layer and an elastomer overlaying the diaphragm
CH533900A (en) * 1971-11-26 1973-02-15 Holzer Patent Ag Pressure-actuated, electrical switch arrangement in sandwich construction
US3723673A (en) * 1971-10-13 1973-03-27 Addmaster Corp Keyboard switch assembly with wire conductor matrix contact array
US3732389A (en) * 1972-02-14 1973-05-08 Litton Systems Inc Touch entry switch array
DE2339460A1 (en) * 1972-08-04 1974-02-14 Marconi Co Ltd POSITION INDICATOR
US3886335A (en) * 1973-01-26 1975-05-27 Ind Electronics Engineers Inc Collated cable matrix switch
US4078257A (en) * 1976-08-23 1978-03-07 Hewlett-Packard Company Calculator apparatus with electronically alterable key symbols
GB2037079A (en) * 1978-12-05 1980-07-02 Standard Telephones Cables Ltd Modular keyboard
FR2447597A1 (en) * 1979-01-29 1980-08-22 Siemens Ag Touch switch with printed circuit contacts - which have hatched form, mounted on transparent supports to permit passage of light

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308253A (en) * 1965-03-25 1967-03-07 Ibm Diaphragm switch having a diaphragm supported on an incompressible layer and an elastomer overlaying the diaphragm
US3723673A (en) * 1971-10-13 1973-03-27 Addmaster Corp Keyboard switch assembly with wire conductor matrix contact array
CH533900A (en) * 1971-11-26 1973-02-15 Holzer Patent Ag Pressure-actuated, electrical switch arrangement in sandwich construction
US3732389A (en) * 1972-02-14 1973-05-08 Litton Systems Inc Touch entry switch array
DE2339460A1 (en) * 1972-08-04 1974-02-14 Marconi Co Ltd POSITION INDICATOR
US3886335A (en) * 1973-01-26 1975-05-27 Ind Electronics Engineers Inc Collated cable matrix switch
US4078257A (en) * 1976-08-23 1978-03-07 Hewlett-Packard Company Calculator apparatus with electronically alterable key symbols
GB2037079A (en) * 1978-12-05 1980-07-02 Standard Telephones Cables Ltd Modular keyboard
FR2447597A1 (en) * 1979-01-29 1980-08-22 Siemens Ag Touch switch with printed circuit contacts - which have hatched form, mounted on transparent supports to permit passage of light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619035A1 (en) * 1985-06-11 1987-01-22 Shinetsu Polymer Co TRANSPARENT TOUCH OPERATING DEVICE TO OPERATE IN CONNECTION WITH A DISPLAY DEVICE

Also Published As

Publication number Publication date
DE3130962A1 (en) 1983-02-24
JPS5828116A (en) 1983-02-19

Similar Documents

Publication Publication Date Title
DE2805722C2 (en)
DE2559681C2 (en) Actuating device for the selective closing of several electrical circuits
DE2921557A1 (en) FLEXIBLE KEY SWITCH
DE3530354A1 (en) ELECTRICAL FUSE ARRANGEMENT
DE2642842C2 (en) Electronic calculator
DE2319042B2 (en) KEYBOARD
DE3803023A1 (en) METHOD AND DEVICE FOR BACKLIGHTING A KEYPAD
DE1069236B (en)
DE3108183A1 (en) METHOD FOR PRODUCING KEY SWITCHES
DE2530176A1 (en) Push button switch with plate spring - has several support elements round plate spring periphery for contact plate spacing
DE2041498A1 (en) Block keyboard and process for their manufacture
DE1588019C3 (en) Fuse holder
DE3503847C2 (en) Steering wheel plate switch
DE2925736C2 (en) Flexible push button switch
DE3619035C2 (en)
DE3643124C2 (en)
DE3017470A1 (en) MULTIPLE PRINT DATA INPUT
DE60025301T2 (en) Pushbutton Switches
DE3011744A1 (en) MULTI-WIRE CONNECTOR
EP0072446A1 (en) Flat switch disposition
DE3033134A1 (en) Pushbutton bridge contact switch - has synthetic top with collapsing side to make bridge contact over wiring
DE3703903A1 (en) ELECTRICAL ARRANGEMENT WITH A MULTIPLE NUMBER OF SLIDING ELEMENTS
DE3151632A1 (en) INJECTION MOLDING PROCESS AND INJECTION MOLDING PRODUCED BY THIS
EP0992065B1 (en) Film used as a substrate for integrated circuits
DE2926312A1 (en) Foil-type press-button switch - has printed contacts on top foil and baseplate separated by perforated insulation foil

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB LI SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840201

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LAMM, KLAUS DIETER

Inventor name: MICHALSKI, DIETER