DE4313030A1 - Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board - Google Patents

Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board

Info

Publication number
DE4313030A1
DE4313030A1 DE19934313030 DE4313030A DE4313030A1 DE 4313030 A1 DE4313030 A1 DE 4313030A1 DE 19934313030 DE19934313030 DE 19934313030 DE 4313030 A DE4313030 A DE 4313030A DE 4313030 A1 DE4313030 A1 DE 4313030A1
Authority
DE
Germany
Prior art keywords
key switch
switch according
steering wheel
circuit board
switches
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Withdrawn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
DE19934313030
Other languages
German (de)
Inventor
Hans A Dipl Ing Bock
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.)
BOCK HANS A DIPL ING TU
Original Assignee
BOCK HANS A DIPL ING TU
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
Priority claimed from DE19924213084 external-priority patent/DE4213084A1/en
Application filed by BOCK HANS A DIPL ING TU filed Critical BOCK HANS A DIPL ING TU
Priority to DE19934313030 priority Critical patent/DE4313030A1/en
Publication of DE4313030A1 publication Critical patent/DE4313030A1/en
Withdrawn legal-status Critical Current

Links

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
    • H01H2207/00—Connections
    • H01H2207/032—Surface mounted component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/028—Facilitation of operation; Human engineering on planes with different or alterable inclination, e.g. convex plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/002—Layer thickness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/036—Minimise height
    • 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
    • H01H2229/00—Manufacturing
    • H01H2229/066—Z-axis assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/026—Car

Landscapes

  • Steering Controls (AREA)
  • Switches With Compound Operations (AREA)

Abstract

Push button switch elements are provided on a flexible circuit plate (3) set onto a plastic base (1). Contact elements can be in the form of snap action discs (9) or encapsulated short stroke switches (5). Operation of the switches or contacts is produced by deformation of a flexible `skin' (7) that has inset symbol discs (8). Knobs or rings are formed on the underside of the skin as activation points. ADVANTAGE - Compact.

Description

Tastenschalter auf flexiblen Leiterplatten zur Bedienung durch die "elastische Haut" von Innen­ armaturen z. B. Lenkrädern, Konsolen oder Armlehnen im Automobil.Key switches on flexible printed circuit boards Operation through the "elastic skin" from the inside fittings z. B. steering wheels, consoles or Armrests in the automobile.

Es ist bekannt, einzelne Schalter in Kunststoffteile des Lenkrades z. B. einzubauen und diese mit festen Blenden und den entsprechenden Ausschnitten abzudecken. Die Schalterfunktionen wurden bisher über angelötete oder angesteckte Rundkabel entweder gleich auf den Kabelbaum gegeben oder in einer starren Leiterplatte mit Steckanschluß zusammengefaßt und darauf in den Kabelbaum geführt. Dadurch war es nicht möglich Tastenschalter unmittelbar durch die "elastische Haut" des Lenkrades zu betätigen. Ferner ist durch die Verbindung von Schalteranschlüssen auf die Steuerplatine (Leiterplatte) durch zweimaliges Stecken oder Löten eine fehlerhafte Verbindung sehr viel eher möglich (Kalte Lötstellen, keine Lötung). Diese Probleme und Nachteile werden durch Integration der Schaltfunktionen auf eine flexible Leiterplatte gelötet, die gleichzeitig Träger der Verdrahtung und der Steuerschaltung ist.It is known to switch in individual Plastic parts of the steering wheel z. B. to install and these with fixed bezels and to cover corresponding cutouts. The Switch functions were previously over either soldered or plugged in round cables placed directly on the wiring harness or in one rigid circuit board with plug connection summarized and then in the wiring harness guided. This made it impossible Key switch directly through the "elastic skin" of the steering wheel to operate. Furthermore, by connecting Switch connections on the control board (PCB) by plugging twice or Solder a bad connection a lot rather possible (cold solder joints, no soldering). These problems and disadvantages are solved by Integration of the switching functions on one flexible circuit board soldered that at the same time Carrier of the wiring and the control circuit is.

Der Vorteil dieser flexiblen Leiterplatte ist, daß sie an die Krümmungen der Lenkrad oder Konsolenteile anpaßbar ist und die darauf befindlichen Schaltkontakt-Schnappscheiben oder auch gekapselten Schnappscheiben (Kurzhubtasten) über die "elastische Haut" des Lenkrades (z. B. Polyurethan Schaum) betätigt werden können. Ein weiterer Vorteil ist die Ausbildung aller Bauteile auch die der Beleuchtung (Chip LED′s) in SMD Technik, um geringe Bauhöhe zu erreichen. Eine vorteilhafte Ausgestaltung der Erfindung ist im Patentanspruch angegeben.The advantage of this flexible circuit board is that they stick to the curvatures of the steering wheel or Console parts are customizable and the ones on it located switch contact snap disks or also encapsulated snap disks (Short-stroke keys) over the "elastic skin" of the Steering wheel (e.g. polyurethane foam) operated can be. Another advantage is that Training of all components including the Lighting (chip LED’s) in SMD technology to to achieve low overall height. A  advantageous embodiment of the invention is in Claim specified.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is in the drawing and is shown below described in more detail.

In Fig. 1 liegt die Flexleiterplatte 3 auf dem Kunststoffteil 1. Um sicheren Sitz zu erreichen ist sie mit einer Bohrung mit umsäumten Cu-Ring (Einreißschutz) versehen und wird über den Turm 4 gedrückt. Als Kontakt­ elemente sind Schnappscheibe 9 oder gekapselter Kurzhubtaster 5 möglich. Zur Betätigung dient die "elastische Haut" aus Kunststoff (z. B. Polyurethan) 7 mit eingebrachter Symbolscheibe 8 und darunter befindlicher Chip LED 6. Weitere Kontaktbetätigungen sind im Kunststoff angebrachte Knöpfe, Kappen 10 oder Ringe 11 (Fig. 2 u. 3). Möglich ist auch, eine Einzeltaste 12 am Gehäuse 13 zu befestigen, welches wiederum an das Kunststoffteil des Lenkrades geschraubt ist 1. Das flexible Band läuft hier über eine Aussparung in das Gehäuse.In Fig. 1, the flexible printed circuit board 3 is located on the plastic part 1. In order to achieve a secure fit, it is provided with a hole with an edged Cu ring (tear protection) and is pressed over the tower 4 . Snap elements 9 or encapsulated short-travel keys 5 are possible as contact elements. The "elastic skin" made of plastic (eg polyurethane) 7 with inserted symbol disk 8 and chip LED 6 located underneath serves for actuation. Further contact operations are buttons, caps 10 or rings 11 attached in the plastic ( FIGS. 2 and 3). It is also possible to attach a single button 12 to the housing 13 , which in turn is screwed to the plastic part of the steering wheel 1 . The flexible tape runs here through a recess in the housing.

Claims (12)

1. Tastenschalter unter der "elastischen Haut" von Innenarmaturen im KFZ sitzend (z. B. Armlehne oder Lenkrad) und durch diese bedienbar, dadurch gekennzeichnet, daß die Tastenschalter nicht einzeln aufgebaut sondern auf eine flexible Leiterplatte integriert sind, die in ihrer Funktion Träger der Kabelverbindungen der Schalter und der elektronischen Auswerteschaltung ist, wobei die Leiterplatte mit Bauteilen und Schaltern sich bei entsprechendem Zuschnitt den komplizierten Krümmungen z. B. von Lenkradnaben gut anpassen kann und dem formgebenden Konturenverlauf der Lenkrad Kunstoffteile folgt, in denen sie durch Einklipsen oder Schrauben fest verankert ist.1. key switch under the "elastic skin" of interior fittings in the car sitting (z. B. armrest or steering wheel) and operated by this, characterized in that the key switches are not built individually but integrated on a flexible circuit board, the function of their carrier is the cable connections of the switches and the electronic evaluation circuit, the circuit board with components and switches with the appropriate cutting the complicated curvatures z. B. of steering wheel hubs can adapt well and the shape of the contour of the steering wheel follows plastic parts in which it is firmly anchored by clipping or screws. 2. Tastenschalter nach Anspruch 1, bei denen mittels Kleben oder Einspreizen oder einer andersartigen Verbindungsart Betätigungsübertrageelemente wie Metallscheibenringe in die elastische Haut integriert sind, wobei die Schalter in Kreuzform stehen und so gut Spiegel- oder Sitzverstellung realisiert werden können.2. Key switch according to claim 1, in which by means of gluing or spreading or one different type of connection Actuation transmission elements such as Metal disc rings in the elastic skin are integrated, the switches in Stand cross shape and so good mirror or Seat adjustment can be realized. 3. Tastenschalter nach Anspruch 2, bei denen in die elastische Betätigungshaut Stößel eingebracht sind, die eine Bedienung der Tasten auch in nicht axialer Richtung zulassen.3. Key switch according to claim 2, in which in the elastic actuation skin plunger are introduced, the operation of the buttons allow also in the non-axial direction. 4. Tastenschalter nach Anspruch 3, dadurch gekennzeichnet, daß die elastische Haut an ihrer Innenseite Noppen zur Betätigung der Tasten hat.4. Key switch according to claim 3, characterized characterized in that the elastic skin its inside knobs to operate the Buttons. 5. Tastenschalter nach Anspruch 4, dadurch gekennzeichnet, daß die elastische Haut oder der Stößel transparent ist bzw. eine Streu (Symbol)scheibe eingebaut werden kann zur Beleuchtung der Betätigungsflächen oder/und der geschalteten Zustände, wobei die Chip LED′s oder Glühlampen auf der Flex-Leiterplatte sitzen.5. Key switch according to claim 4, characterized characterized in that the elastic skin or the plunger is transparent or a litter (Symbol) disc can be installed for Illumination of the operating areas and / or the  switched states, the chip LED's or light bulbs on the flex circuit board to sit. 6. Tastenschalter nach Anspruch 5, dadurch gekennzeichnet, daß die Beleuchtung auch durch einen zwischen elastischer Haut und flexibler Leiterplatte befindlichen Lichtleiter erfolgen kann mit zusätzlicher Funktion zur Führung der Tasten.6. Key switch according to claim 5, characterized characterized in that the lighting also by one between elastic skin and more flexible PCB light guide can be used with additional function to guide the Keys. 7. Tastenschalter nach Anspruch 1, dadurch gekennzeichnet daß durch geringe Layoutänderung und Änderung des Schnittwerkzeuges die Schalterkombinationen auf z. B. andere Lenkrad geometrien ausgelegt werden können.7. Key switch according to claim 1, characterized characterized by slight layout changes and changing the cutting tool Switch combinations on z. B. other steering wheel geometries can be designed. 8. Tastenschalter nach Anspruch 7 und 1, dadurch gekennzeichnet, daß durch SMD Bestückung und Verwendung von Schappscheiben als Kontakten die Bauhöhe sehr gering ist.8. Key switch according to claim 7 and 1, characterized characterized that by SMD assembly and Use of washers as contacts Height is very low. 9. Tastenschalter nach Anspruch 1, dadurch gekennzeichnet, daß die Schaltungs- und Schalterverdrahtung auf gespritzten räumlichen Leiterplatten vorgenommen wird (Cu- Heißklebefolie auf Thermoplasten), wobei die Stecker mit integriert werden.9. Key switch according to claim 1, characterized characterized in that the circuit and Switch wiring on molded spatial PCB is made (Cu Hot-melt film on thermoplastics), the Plugs can be integrated. 10. Tastenschalter nach Anspruch 1, dadurch gekennzeichnet, daß sie als Einzelschalter, beinhaltend eine starre Leiterplatte mit Schnapp-Kontaktscheibe und Steckanschluß, mit dem Kunststoffkörper des Lenkrades verschraubt sind und ebenfalls mit an den Enden der flexiblen Kabelverteiler angeschlagenen Buchsen verbunden werden können.10. Key switch according to claim 1, characterized characterized as a single switch, including a rigid circuit board Snap contact disc and plug connection, with screwed to the plastic body of the steering wheel are and also at the ends of the flexible cable distributor struck sockets can be connected. 11. Tastenschalter nach Anspruch 8, dadurch gekennzeichnet, daß geprägte Kontaktfolien mit Silberleitbahnen anstelle der elastischen Haut direkt am Lenkrad betätigt werden können.11. Key switch according to claim 8, characterized characterized that embossed contact foils with Silver traces instead of elastic skin can be operated directly on the steering wheel. 12. Tastenschalter nach Anspruch 1, dadurch gekennzeichnet, daß die kontaktbetätigenden Tasten auf die mit Befestigungsbohrungen versehenen Gehäuse geklipst werden, wobei die flexible Leiterplatte mit Kontaktsystem und an dieser Stelle versteift vorher in das Gehäuse gedrückt wurde.12. Key switch according to claim 1, characterized characterized in that the contact actuators Buttons on the with mounting holes  provided housing are clipped, the flexible circuit board with contact system and on this point stiffens beforehand in the housing was pressed.
DE19934313030 1992-04-21 1993-04-21 Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board Withdrawn DE4313030A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934313030 DE4313030A1 (en) 1992-04-21 1993-04-21 Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924213084 DE4213084A1 (en) 1992-04-21 1992-04-21 Key switch for mounting in vehicle steering wheel, console, or armrest - is operated by plastics elastic skin of upper surface, being formed as SMD, with conductor plate on solder side of cable distributor
DE19934313030 DE4313030A1 (en) 1992-04-21 1993-04-21 Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board

Publications (1)

Publication Number Publication Date
DE4313030A1 true DE4313030A1 (en) 1993-10-28

Family

ID=25914100

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934313030 Withdrawn DE4313030A1 (en) 1992-04-21 1993-04-21 Pushbutton switch for mounting on vehicle steering wheel, console, arm-rest - has actuator regions formed on flexible foil for operation of switches on flexible circuit board

Country Status (1)

Country Link
DE (1) DE4313030A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329120A1 (en) * 1993-08-30 1995-03-02 Petri Ag Steering wheel for motor vehicles
DE19507753A1 (en) * 1995-03-06 1996-09-12 Petri Ag Cover for steering wheel centre esp. with airbag and horn switch
DE19825684A1 (en) * 1998-06-09 1999-12-16 Itt Mfg Enterprises Inc Method of connecting electronic components
DE19853819A1 (en) * 1998-11-21 2000-05-25 Eaton Controls Gmbh Electric switch and/or display element for automobile steering wheel enclosed by elastic cap with outer surface matched to surface contour of steering wheel
WO2001015186A1 (en) 1999-08-24 2001-03-01 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Switch to be mounted on a design element in the passenger room of a motor vehicle
WO2003070539A1 (en) * 2002-02-21 2003-08-28 Autoliv Development Ab Vehicle steering wheel with integrated thin film electronics
US6637770B2 (en) * 2000-09-21 2003-10-28 Trw Automotive Safety Systems Gmbh & Co. Kg Gas bag module with multi-function conductor film
DE10207016A1 (en) * 2002-02-19 2003-11-13 Autoliv Dev Illuminatable pressure-sensitive electric sensor or switch, e.g. for motor vehicle steering wheel, has electroluminescent light source between cover layer and pressure-sensitive sensor layer
US7122915B2 (en) 2002-09-26 2006-10-17 Arvinmeritor Light Vehicle Systems-France Control for a motor vehicle
FR2901010A1 (en) * 2006-05-15 2007-11-16 Faurecia Interieur Ind Snc LUMINOUS SIGNALING DEVICE ON A SOFT SKIN AND METHOD OF MANUFACTURING THE SAME

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329120A1 (en) * 1993-08-30 1995-03-02 Petri Ag Steering wheel for motor vehicles
DE19507753C2 (en) * 1995-03-06 2001-07-19 Petri Ag Cover for the bowl of steering wheels, in particular steering wheels with gas bag impact protection devices
DE19507753A1 (en) * 1995-03-06 1996-09-12 Petri Ag Cover for steering wheel centre esp. with airbag and horn switch
DE19825684A1 (en) * 1998-06-09 1999-12-16 Itt Mfg Enterprises Inc Method of connecting electronic components
DE19853819A1 (en) * 1998-11-21 2000-05-25 Eaton Controls Gmbh Electric switch and/or display element for automobile steering wheel enclosed by elastic cap with outer surface matched to surface contour of steering wheel
DE19853819C2 (en) * 1998-11-21 2001-03-08 Eaton Controls Gmbh Switch and / or display element
DE19940172B4 (en) * 1999-08-24 2004-09-02 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Input unit for arrangement on a design element in the passenger compartment of a motor vehicle
DE19940172A1 (en) * 1999-08-24 2001-11-15 Brose Fahrzeugteile Switches for arrangement on a design element in the passenger compartment of a motor vehicle
US6765159B1 (en) 1999-08-24 2004-07-20 Brose Fahrzeugteile Gmbh &Co. Switch to be mounted on a design element in the passenger compartment of a motor vehicle
WO2001015186A1 (en) 1999-08-24 2001-03-01 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Switch to be mounted on a design element in the passenger room of a motor vehicle
US6637770B2 (en) * 2000-09-21 2003-10-28 Trw Automotive Safety Systems Gmbh & Co. Kg Gas bag module with multi-function conductor film
DE10207016A1 (en) * 2002-02-19 2003-11-13 Autoliv Dev Illuminatable pressure-sensitive electric sensor or switch, e.g. for motor vehicle steering wheel, has electroluminescent light source between cover layer and pressure-sensitive sensor layer
WO2003070539A1 (en) * 2002-02-21 2003-08-28 Autoliv Development Ab Vehicle steering wheel with integrated thin film electronics
US7122915B2 (en) 2002-09-26 2006-10-17 Arvinmeritor Light Vehicle Systems-France Control for a motor vehicle
FR2901010A1 (en) * 2006-05-15 2007-11-16 Faurecia Interieur Ind Snc LUMINOUS SIGNALING DEVICE ON A SOFT SKIN AND METHOD OF MANUFACTURING THE SAME
WO2007132092A1 (en) * 2006-05-15 2007-11-22 Faurecia Interieur Industrie Light indicator device on a skin and method for making same

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