EP0092178A2 - Interrupteur à plusieurs couches - Google Patents

Interrupteur à plusieurs couches Download PDF

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Publication number
EP0092178A2
EP0092178A2 EP83103616A EP83103616A EP0092178A2 EP 0092178 A2 EP0092178 A2 EP 0092178A2 EP 83103616 A EP83103616 A EP 83103616A EP 83103616 A EP83103616 A EP 83103616A EP 0092178 A2 EP0092178 A2 EP 0092178A2
Authority
EP
European Patent Office
Prior art keywords
switch
switch according
pressure member
conductor
film
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Withdrawn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
EP83103616A
Other languages
German (de)
English (en)
Other versions
EP0092178A3 (fr
Inventor
Hans Georg Jost
Klaus Dieter Lamm
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 EP0092178A2 publication Critical patent/EP0092178A2/fr
Publication of EP0092178A3 publication Critical patent/EP0092178A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H01H13/80—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 manner of cooperation of the contacts, e.g. with both contacts movable or with bounceless contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/008—Both contacts movable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/026—Material non precious
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/018—Form of contacts binary coded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/024—Properties of the substrate
    • H01H2209/03—Properties of the substrate elastomeric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/014—Slide selector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/038—Fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/016—Selective etching
    • 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
    • H01H2229/038—Folding of flexible printed circuit

Definitions

  • the invention relates to an electrical switch in film construction, in which a series of individual switch elements which can be actuated by a pressure member is formed in that two elastic insulating films provided on the mutually facing surfaces with conductor surfaces with an intervening insulating intermediate layer in the area of the Switch elements has openings, are glued.
  • Such switches are known, for example, from DE-OS 29 02 769.
  • Such electrical switches have the great advantage of a simple construction and a tight closure of the switch contacts and a very low height.
  • Such foil switches with matrix elements arranged for keyboards of, for example, pocket calculators are used in many cases.
  • the known switches of this type are all pushbutton switches in which a pushbutton is provided for actuating each switch element.
  • the object of the present invention is to provide a slide switch on the basis of the known membrane switches.
  • the switch is particularly suitable for the electrical position indicator on mechanical devices, with a sliding actuator that is mechanically coupled to the pressure element of the switch.
  • a slide switch is constructed in such a way that a foil switch known per se is provided with a row of switch elements arranged one behind the other with a pressure member which extends the length of the Row of shading elements is movable.
  • One of the switch elements arranged in a row is actuated by the movable pressure member. If such a switch still has a special arrangement of conductor surfaces that corresponds to a specific coding, the position of the pressure member can be indicated electrically because different switch contacts are closed when each switch element is actuated.
  • Such a switch can therefore be used to electrically indicate the position of a displaceable element of a mechanical device.
  • Such switches can be installed, for example, in franking machines, the pressure member of the switch being coupled to the slide for setting the pressure rollers. In this way, the set pressure value can be displayed, for example via a 7-segment display.
  • the display device does not have to be located in the device itself, but can be remotely operated via corresponding lines.
  • Fig. 1 the individual parts of the film arrangement of a switch according to the invention are shown in plan view.
  • the switch essentially consists of three insulating foils, namely two insulating foils 1 and 3, on which electrical conductors are applied, and an insulating foil 2, which serves as an intermediate layer.
  • Another plate or foil 4 is advantageously provided as a base.
  • FIG. 1 The parts shown in FIG. 1 are arranged one on top of the other in the sequence shown and in particular the foils 1, 2 and 3 are sealed together.
  • Foils 1, 2 and 3 are arranged one on top of the other in such a way that conductor tracks 11 on foil 1 and 31 on foil 3 face one another and foil 2 lies between them.
  • the foil 2 has openings 21 in which the conductor track pieces of the conductor track 11 on the foil 1 are opposite to the conductor tracks 31 on the foil 3.
  • the foils 1 or 3 are preferred Polyimide foils and the conductor tracks are obtained by the known etching technique, whereby they can consist of copper conductors with a thickness of 35 ⁇ m, the surface of which is provided with a suitable contact metal or a contact alloy. In the simplest case, this consists of a layer of tin.
  • the intermediate layer 2 preferably consists of a polyester film. With the exception of the area of the openings 21 in the intermediate layer 2, the three foils 1, 2 and 3 are sealed together. Polyethylene terephthalate is preferably used as the adhesive. In this way, switch elements which are completely sealed off from the outside are obtained, in which air is enclosed in the area of the openings between foils 1 and 3, which forms a sufficient restoring force for opening the switch element when pressure on a foil ceases.
  • the conductor surfaces on the film 3 are formed by mutually parallel conductor tracks 31 which are provided with electrical connection surfaces or connection rings 33 at least at one end.
  • the conductor surfaces 11 on the foil 1 consist of short conductor track pieces within each switch element, which correspond to the conductor tracks 31 on the foil 3. Between the individual switch elements, the conductor track pieces are connected to one another by conductor tracks running perpendicularly thereto.
  • Connection foils 12 and 32 are additionally provided on foils 1 and 3.
  • the conductor tracks 12 on the foil 1 serve to connect the this foil arranged conductor pattern.
  • the two foils 1 and 3 can consist of a single foil which is folded around a transverse side of the intermediate layer 2 in such a way that the conductor track patterns 11 and 31 shown in FIG. 1 are arranged next to one another on the single foil , then face each other again.
  • FoLie 1 then continues on its left edge as FoLie 3 with its right edge.
  • the connection conductors 12 then merge into the connection conductors 32, so that the connection surfaces 33 for the conductor pattern 11 can also be provided at the left end of this film.
  • the foil 3 can also bend slightly when the foil 1 is actuated until it comes into contact with the foil 3. This results in better contact and easier contact cleaning.
  • an underground 4 is arranged under the foil arrangement of foils 1 to 3, which has 2 openings or depressions 41 in the area of the openings 21 of the intermediate layer, so that the two foils 1 and 3 are located in the area of each Bend shading element when actuated.
  • a foam strip can preferably be arranged under the film arrangement.
  • a further plate or film with openings corresponding to the intermediate layer 2 can be provided on the side of the film arrangement facing the pressure member, as a result of which a periodic increase in resistance is achieved when the pressure member is moved longitudinally, so that there is a type of detent.
  • the edges of the openings arranged transversely to the sliding direction of the pressure member are preferably beveled.
  • the pressure member that can be moved lengthwise of the film arrangement must cover all conductor tracks transversely to the film arrangement.
  • FIG. 2 shows a partially enlarged longitudinal section through the switch according to the invention. From this it can be seen that the foils 1 and 3 with their conductor tracks 11 and 31 face each other and are kept at a defined distance by the intermediate layer 2.
  • the breakthroughs 21 of the intermediate layer 2 each define a switch element.
  • the foam layer 42 is arranged under the film arrangement, which allows the two films 1 and 3 to bend when actuated by the pressure member 52.
  • the individual adhesive layers are not shown in the figure for the sake of clarity.
  • the pressure member has a spring member 52 on the actuation side, which ends in a spring 53.
  • This spring can extend over the entire width of the switch elements or can also consist of individual partial springs, which are each arranged in the region of a conductor track 31.
  • Fig. 3 shows schematically the structure of such a pressure member.
  • the pressure member 5 has a suitable holder 50, on which the spring member 52 is arranged, which has individual springs 53 at its end.
  • These springs are preferably leaf springs bent at the end.
  • these leaf springs can consist of any conductive or insulating material, since they do not make any electrical contacts.
  • spring-loaded rollers or rollers can also be used.
  • the switch according to the invention is particularly suitable for the electrical position display of mechanical devices with a sliding skin member. It has been found that the switch contacts still open perfectly at ambient temperatures of 80 ° C after long operation by the pressure member when moving the pressure member.
  • a displaceable guide 6 is then provided, which is pushed over the switch member, the free end 7 of the switch member being bent over an edge 61 into another plane. In this case, contact is made in the area of the openings 21.

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
EP83103616A 1982-04-20 1983-04-14 Interrupteur à plusieurs couches Withdrawn EP0092178A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214454 1982-04-20
DE19823214454 DE3214454C2 (de) 1982-04-20 1982-04-20 Elektrischer Schalter in Folienbauweise

Publications (2)

Publication Number Publication Date
EP0092178A2 true EP0092178A2 (fr) 1983-10-26
EP0092178A3 EP0092178A3 (fr) 1985-09-25

Family

ID=6161321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103616A Withdrawn EP0092178A3 (fr) 1982-04-20 1983-04-14 Interrupteur à plusieurs couches

Country Status (2)

Country Link
EP (1) EP0092178A3 (fr)
DE (1) DE3214454C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269777A1 (fr) * 1986-09-29 1988-06-08 Tektronix, Inc. Procédé de fabrication d'un élément de contact
FR2643172A1 (fr) * 1989-02-13 1990-08-17 Jaeger Detecteur d'obstacle de faible encombrement
WO1992015109A2 (fr) * 1991-02-15 1992-09-03 Niessen Guenther Agencement d'unites de commutation et son dispositif de commande
EP1464786A1 (fr) * 2003-04-02 2004-10-06 Mayser GmbH & Co. KG Bordure à interrupteur ainsi qu'un procédé et dispositif pour la production de cette bordure à interrupteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034539A1 (de) * 1989-10-30 1991-05-02 Toyoda Gosei Kk Lenkrad mit luftsackvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171972A1 (fr) * 1972-02-17 1973-09-28 Impression Enreg Result Ier
DE2245596A1 (de) * 1972-09-16 1974-03-21 Friedrich Tonne Schiebeschalter zur anwahl von fernsprech- oder foerderzielen
US3854018A (en) * 1973-06-14 1974-12-10 Amp Inc Multiple circuit selector switch assembly having movable contact means adapted to retain itself in closed circuit position
FR2447598A1 (fr) * 1979-01-25 1980-08-22 Itt Commutateur a bouton poussoir
US4322588A (en) * 1980-04-04 1982-03-30 Umc Industries, Inc. Slide selector switch device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647651B2 (fr) * 1974-01-11 1981-11-11
US4246452A (en) * 1979-01-05 1981-01-20 Mattel, Inc. Switch apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171972A1 (fr) * 1972-02-17 1973-09-28 Impression Enreg Result Ier
DE2245596A1 (de) * 1972-09-16 1974-03-21 Friedrich Tonne Schiebeschalter zur anwahl von fernsprech- oder foerderzielen
US3854018A (en) * 1973-06-14 1974-12-10 Amp Inc Multiple circuit selector switch assembly having movable contact means adapted to retain itself in closed circuit position
FR2447598A1 (fr) * 1979-01-25 1980-08-22 Itt Commutateur a bouton poussoir
US4322588A (en) * 1980-04-04 1982-03-30 Umc Industries, Inc. Slide selector switch device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269777A1 (fr) * 1986-09-29 1988-06-08 Tektronix, Inc. Procédé de fabrication d'un élément de contact
FR2643172A1 (fr) * 1989-02-13 1990-08-17 Jaeger Detecteur d'obstacle de faible encombrement
EP0390618A1 (fr) * 1989-02-13 1990-10-03 Jaeger Détecteur d'obstacle
WO1992015109A2 (fr) * 1991-02-15 1992-09-03 Niessen Guenther Agencement d'unites de commutation et son dispositif de commande
WO1992015109A3 (fr) * 1991-02-15 1993-01-07 Guenther Niessen Agencement d'unites de commutation et son dispositif de commande
EP1464786A1 (fr) * 2003-04-02 2004-10-06 Mayser GmbH & Co. KG Bordure à interrupteur ainsi qu'un procédé et dispositif pour la production de cette bordure à interrupteur

Also Published As

Publication number Publication date
DE3214454C2 (de) 1984-08-23
EP0092178A3 (fr) 1985-09-25
DE3214454A1 (de) 1983-10-27

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

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AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19860831

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LAMM, KLAUS DIETER

Inventor name: JOST, HANS GEORG