DE2928146A1 - Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil - Google Patents

Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil

Info

Publication number
DE2928146A1
DE2928146A1 DE19792928146 DE2928146A DE2928146A1 DE 2928146 A1 DE2928146 A1 DE 2928146A1 DE 19792928146 DE19792928146 DE 19792928146 DE 2928146 A DE2928146 A DE 2928146A DE 2928146 A1 DE2928146 A1 DE 2928146A1
Authority
DE
Germany
Prior art keywords
foil
layer
front plate
front panel
transparent
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.)
Ceased
Application number
DE19792928146
Other languages
German (de)
Inventor
Nichtnennung Beantragt
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.)
Hein & Co KG Geb GmbH
Original Assignee
Hein & Co KG Geb GmbH
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 Hein & Co KG Geb GmbH filed Critical Hein & Co KG Geb GmbH
Priority to DE19792928146 priority Critical patent/DE2928146A1/en
Publication of DE2928146A1 publication Critical patent/DE2928146A1/en
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • H01H13/83Switches 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 legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2213/00Venting
    • H01H2213/01Venting with internal pressure of other switch sites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/028Printed information
    • H01H2219/03Printed information in transparent keyboard
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00Applications
    • H01H2231/05Card, e.g. credit card

Landscapes

  • Push-Button Switches (AREA)

Abstract

Flush keyboard of the front plate in control of electric or electronic equipment has the keys totally protected against ingress of dust or humidity. The keyboard is illuminated through the transparent support (8) while the laminated front plate has the top layer of transparent plastic providing the required text. The similarly transparent diaphragm (3) is attached to the conductive layer (4) with gold plated contacts whereas the spacer foil (5) controls spacing between contacts. The foil exhibits openings for contact forming between diaphragms (4,6).

Description

Frontplatte mit Foliendrucktasten Front panel with membrane pushbuttons

Gegenstand der Erfindung ist eine Frontplatte mit Foliendrucktasten, insbesondere für die Steuerung elektrischer und elektronischer Vorgänge. The invention relates to a front panel with membrane push buttons, especially for the control of electrical and electronic processes.

Die Steuerung und Betätigung elektrischer und/oder elektronischer Vorgänge geschieht im allgemeinen über Druckknöpfe, Drucktasten, Schalter und dergleichen Vorrichtungen, die auf bzw. in einer Frontplatte angeordnet und gegebenenfalls auch noch mit Beleuchtung ausgestattet sind. Die Auslösung des Steuervorgangs durch Knopf- oder Tastendruck erfolgt auf mechanischem Wege durch Hereindrücken des unter Federdruck stehenden Knopfes oder der Taste, wodurch der Kontakt zwischen der Stromquelle und dem zu betätigenden oder zu steuernden Gerät herausgestellt wird. The control and operation of electrical and / or electronic Operations are generally done via push buttons, pushbuttons, switches and the like Devices that are arranged on or in a front panel, and possibly also are still equipped with lighting. The triggering of the control process by button or a button is pressed mechanically by pressing the under spring pressure standing button or button, making contact between the power source and the device to be operated or controlled is emphasized.

Diese Art der Steuerung, die für alle möglichen Zwecke, beispielsweise die Steuerung medizinischer Geräte, Maschinen, Wasserfahrzeuge, zur Bedienung von Kegelbahnen oder KafReautomaten und dergleichen in Betracht kommt hat erhebliche Nachteile, denn die Knöpfe, Tasten oder sonstigen Betätigungselemente stehen über die Oberfläche der Frontplatte hinaus, verstauben leicht, sind nicht dicht gegen Feuchtigkeit, Wasser, Säuren und Laugen, die Reinigung ist umständlich und zeitraubend und schließlich sind die unter den Knöpfen und Tasten liegenden Kontakte oder Kontaktfedern der Oxydation durch das Herantreten von Luft unterworfen. This type of control used for all sorts of purposes, for example the control of medical devices, machines, watercraft, to operate Bowling alleys or coffee machines and the like comes into consideration has considerable Disadvantages, because the buttons, buttons or other operating elements protrude the surface of the faceplate addition, dust easily, are not tight against Moisture, water, acids and alkalis, cleaning is cumbersome and time-consuming and finally, the contacts or contact springs underneath the buttons and keys are subject to oxidation by the ingress of air.

Die Aufgabe der Erfindung besteht darin, eine Frontplatte zu schaffen, be der die Tastenelemente vollständig flächig in der Materialdicke von ca. Zu mm der Frontplatte integriert und somit absolut dicht gegen Staub, Luft und Feuchtigkeit sind und dazu die gesamte Taststelle durchleuchÜoar ist.The object of the invention is to create a front panel, with the key elements completely flat in the material thickness of approx. To mm integrated into the front panel and therefore absolutely impervious to dust, air and moisture and the entire touch point is transparent.

Die lösung dieser Aufgabe wird erlindungsgemäß durch die technische Lehre vermittelt, daß die Frontplatte aus einem mehrschichtigen durchleuchtbaren Plattenkörper gebildet wird, dessen obere Schicht oder Außenschicht aus einer Textplatte aus transparentem Kunststoff mit eingebettetem Druckbild aus mehreren Farbschichten auch für die partielle Durchleuchtung der Taststellen, einer transparenten Zwischenschicht aus Membranmaterial, einer leitenden gerasterten Schicht mit elektrischem Leitsystem und vergoldeten Kontaktstellen, einer Distanzfolie zur Abstandshaltung der Kontaktstellen, einer weiteren Schicht mit elektrischem Leitsystem, einer weiteren Zwischenschicht aus Membranmaterial und einem Stützelement in Form einer Platte oder eines Formteils besteht. An den vorgesehenen Taststellen besitzt die Distenzfolie Durchbrüche, die das Kontaktieren der oberen und unteren Folie mit den elektrischen Leitsystemen ermöglicht. Ferner sind auch Durchbrechungen an den Taststellen in den Leitsystemen der oberen und unteren Folie vorgesehen, um die flächige Durchleuchtung der Taststellen zu ermäglichen; diese Durchbrechungen haben zweckmäßig die Form von Rastern. Die Durchbrüche in der Distanzfolie sind durch Verbindungskanäle verbunde, um den Ausgleich eingeschlossener Luftmengen im Plattenkörper der Frontplatte beim Drücken der Taststellen zur Kontaktfreigabe zu gewährleisten. The solution to this problem is according to the invention by the technical Teaching conveyed that the front panel consists of a multilayer translucent Plate body is formed, the upper layer or outer layer of which consists of a text plate Made of transparent plastic with an embedded print image made up of several layers of color also for the partial illumination of the tactile points, a transparent intermediate layer made of membrane material, a conductive, screened layer with an electrical control system and gold-plated contact points, a spacer film to keep the contact points apart, another layer with an electrical control system, another intermediate layer made of membrane material and a support element in the form of a plate or a molded part consists. At the intended touch points, the spacer foil has openings that the contact of the upper and lower foil with the electrical control systems enables. There are also openings at the touch points in the control systems the upper and lower film are provided in order to illuminate the surface of the tactile points to enable; these openings are expediently in the form of grids. the Openings in the spacer foil are connected by connecting channels to compensate trapped air in the panel body of the front panel when the button is pressed to ensure contact sharing.

Eine Ausführungsform der Erfindung ist anhand der beigefügten Zeichnungen beschrieben. An embodiment of the invention is based on the accompanying drawings described.

Die obere oder Ausenschicht 1 besteht aus einer Textplatte mit eingebettetem, mehrfarbigem, teilweise lichtdurchlässigem Druckbild 2 aus transparentem Kunststoff. Das Membranmaterial welches ebenfalls transparent ist, wird mit einer leitenden Schicht 4 fest verbunden. Um das Licht durchstralllen zu lassen, ist de leitende Schicht gerastert. Die Kontaktstellen sind vergoldet. Zur Abstandshaltung zwischen Schicht 4 und einer weiteren Schicht 6 mit elektrischem Leitsystem liegt die Distanzfolie 5, die Abstände zwischen den Kontakten hält, wobei die Kontaktstellen durch Luftkanäle miteinander verbunden sind, um durch Ausgleich des Druckes eine einwandfreie Kontaktfreigabe zu gewährleisten. Eine weitere Zwischenschicht 7 aus Membranmaterial bildet den Abschluß des Plattenkörpers und verbindet diesen mit dem Stützelement 8 in Form einer Platte oder eines Formteils, zweckmäßig aus transparentem. Kunststoff hergestellt. The upper or outer layer 1 consists of a text plate with embedded, multi-colored, partially translucent print image 2 made of transparent plastic. The membrane material, which is also transparent, is covered with a conductive Layer 4 firmly connected. In order to let the light shine through, de is conductive Layer rasterized. The contact points are gold-plated. To keep the distance between Layer 4 and a further layer 6 with an electrical conduction system is the spacer film 5, which keeps the spacing between the contacts, the contact points through air channels are connected to each other in order to ensure proper contact release by equalizing the pressure to ensure. Another intermediate layer 7 made of membrane material forms the Completion of the plate body and connects it to the support element 8 in the form a plate or a molded part, expediently made of transparent. Made of plastic.

Claims (3)

P A T E N T - A N S P R Ü G H E 1.) Frontplatte mit Foliendrucktasten, insbesondere für die-Steuerung elektrischer oder elektronischer Vorgänge, dadurch gekenr.zeichnet, daß sie aus einem mehrschichtigen, durchleuchtbaren Plattenkörper gebildet ist, dessen obere Schicht (1) aus einer Textplatte mit eingebettem, mehrfarbigem teilweise lichtdurchlässigem Druckbild (2) aus transparentem Kunststoff, einer Schicht aus transparentem Membran-Material (3) verbunden mit einer gerasterten leitenden Schicht (4) mit vergoldeten Kontaktstellen, einer Distanzfolie (5) einer weiteren Schicht (6) mit elektrischem $Leitsystem. P A T E N T - A N S P R Ü G H E 1.) Front panel with membrane push buttons, in particular for the control of electrical or electronic processes, thereby marked that it consists of a multi-layer, translucent plate body is formed, the upper layer (1) of a text plate with embedded, multicolored partially translucent print image (2) made of transparent plastic, one layer made of transparent membrane material (3) connected to a screened conductive Layer (4) with gold-plated contact points, a spacer film (5) another Layer (6) with electrical $ control system. wobei die Distanzfolie (5) die Abstände zwischen den Kontakten hält und die Kontaktstellen durch Luftkanäle verbunden sind, einer Zwischenschicht (7) aus Membran-Material als Abschluß des Plattenkörpers und einem Stützelement (8) in Form einer Platte oder eines Formteils, zweckmäßig aus transparentem Kunststoff, besteht. wherein the spacer film (5) keeps the distances between the contacts and the contact points are connected by air channels, an intermediate layer (7) made of membrane material as a closure of the plate body and a support element (8) in the form of a plate or a molded part, expediently made of transparent plastic, consists. 2.) Frontplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Distanzfolie (5) an den vorgesehenen Taststellen Durchbrüche besitzt, die das Kontaktieren der oberen und unteren Folie (4,6) mit den elektrischen Leitsystemen ermöglicht. 2.) Front panel according to claim 1, characterized in that the Spacer film (5) has openings at the intended touch points that make contact the upper and lower film (4, 6) with the electrical control systems. 3.) Frontplatte nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Taststellen in den Leitsystemen der oberen und unteren Folie (4, 6), um die flächige Durchleuchtung zu ermöglichen, Durchbrechungen, beispielsweise - in Rasterfom enthalten. 3.) Front panel according to claim 1 and 2, characterized in that the touch points in the control systems of the upper and lower film (4, 6) to the To enable two-dimensional fluoroscopy, openings, for example - in grid form contain.
DE19792928146 1979-07-12 1979-07-12 Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil Ceased DE2928146A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792928146 DE2928146A1 (en) 1979-07-12 1979-07-12 Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792928146 DE2928146A1 (en) 1979-07-12 1979-07-12 Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil

Publications (1)

Publication Number Publication Date
DE2928146A1 true DE2928146A1 (en) 1981-01-15

Family

ID=6075524

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792928146 Ceased DE2928146A1 (en) 1979-07-12 1979-07-12 Touch foil keyboard front plate - has transparent layers with diaphragms carrying contacts closing through opening of foil

Country Status (1)

Country Link
DE (1) DE2928146A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236256A1 (en) * 1982-09-30 1984-04-05 Manfred 7307 Aichwald Dörler Film, in particular key membrane for actuation of electric contacts, and process for its production
US4493958A (en) * 1983-09-28 1985-01-15 Stewart-Warner Corporation Illuminated membrane switch
FR2556116A1 (en) * 1983-12-02 1985-06-07 Coca Cola Co DISPLAY PANELS FOR DISTRIBUTOR MACHINES
US4551598A (en) * 1983-09-28 1985-11-05 Stewart-Warner Corporation Illuminated membrane switch
DE3535217A1 (en) * 1984-10-08 1986-04-17 Alps Electric Co., Ltd., Tokio/Tokyo Control display board
EP0463285A1 (en) * 1990-06-26 1992-01-02 Nihon Kaiheiki Industrial Co., Ltd. Push-button switch with liquid-crystal display

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236256A1 (en) * 1982-09-30 1984-04-05 Manfred 7307 Aichwald Dörler Film, in particular key membrane for actuation of electric contacts, and process for its production
US4493958A (en) * 1983-09-28 1985-01-15 Stewart-Warner Corporation Illuminated membrane switch
US4551598A (en) * 1983-09-28 1985-11-05 Stewart-Warner Corporation Illuminated membrane switch
FR2556116A1 (en) * 1983-12-02 1985-06-07 Coca Cola Co DISPLAY PANELS FOR DISTRIBUTOR MACHINES
DE3535217A1 (en) * 1984-10-08 1986-04-17 Alps Electric Co., Ltd., Tokio/Tokyo Control display board
EP0463285A1 (en) * 1990-06-26 1992-01-02 Nihon Kaiheiki Industrial Co., Ltd. Push-button switch with liquid-crystal display

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
8125 Change of the main classification
8131 Rejection