EP0119603A2 - Installation d'interrupteur à bouton-poussoir - Google Patents

Installation d'interrupteur à bouton-poussoir Download PDF

Info

Publication number
EP0119603A2
EP0119603A2 EP84102871A EP84102871A EP0119603A2 EP 0119603 A2 EP0119603 A2 EP 0119603A2 EP 84102871 A EP84102871 A EP 84102871A EP 84102871 A EP84102871 A EP 84102871A EP 0119603 A2 EP0119603 A2 EP 0119603A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact points
film
bellows
switch device
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Withdrawn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
EP84102871A
Other languages
German (de)
English (en)
Other versions
EP0119603A3 (fr
Inventor
Jürgen Reuschel
Reinhold Dipl.-Ing. Heiss
Rudolf Dr. Ing. Wächtler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0119603A2 publication Critical patent/EP0119603A2/fr
Publication of EP0119603A3 publication Critical patent/EP0119603A3/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Withdrawn legal-status Critical Current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
    • H01H13/807—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 spatial arrangement of the contact sites, e.g. superimposed sites
    • 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
    • H01H2225/00—Switch site location
    • H01H2225/002—Switch site location superimposed
    • 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 a key switch device with a plurality of key switches grouped into a keypad, which acts with their actuating elements on a bellows having elastic properties, mat, each lifting bellows carrying an electrically conductive contact piece in its interior, the contact points arranged on an insulating plate snap when the key is depressed bridged ..
  • Such a device is known for example from DE-GM 81 05 649.
  • the buttons are reset by bellows on a rubber mat.
  • the lifting bellows are each provided with a contact piece in their interior, so that contact points provided on a circuit board are bridged when the button is depressed.
  • buttons act on two contact foils arranged one above the other, separated by an insulating foil and provided with conductor tracks and contact points. In the area of the contact points, the insulating film each has a recess.
  • an attachment formed on the underside of the button acts on the upper contact sequence and thus brings about contact with the contact point underneath.
  • a similar device is also by DE-AS 26 60 067 known, in which the two contact foils are folded for assembly such that the associated contact points are arranged one above the other in the assembled state with the insertion of an intermediate layer.
  • the object of the invention is to present a push-button switching device in which it is possible to increase the number of circuits in a simple manner without too great changes to the device known from DE-GM 81 05 649.
  • the insulating plate is designed as an elastic contact film and is provided on both sides with conductor tracks and contact points, that a further contact film is arranged below this contact film, the one side with Conductor tracks and contact points are provided that the contact foils are kept at a distance from one another by an electrically non-conductive intermediate layer and that the intermediate layer has a recess in the area of the contact points.
  • the concept on which the invention is based therefore achieves the object by a combination of an insulating plate designed as a switching film and a conventional contact mat with lifting bellows.
  • the contact tracks of the first circuit are on the top of the switching foil e.g. applied by screen printing.
  • the switching foil itself takes over the task of the second circuit.
  • a pressure plate is arranged below the lower contact film, which limits the stroke of the keys.
  • the lower and upper contact foils are formed in one piece and are folded laterally or at their end facing away from the electrical connection and / or are glued to one another.
  • the figure shows a key switch device in cross section.
  • the key switch device consisting of a plurality of keys is arranged in a housing 3. It consists of key buttons 1, 2, of which the button 1 is shown in the non-pressed state, the button 2 in the depressed state.
  • the buttons are on bellows 4, 5 a contact mat 6.
  • the lifting bellows are provided on their side facing the contact mat 6 with electrically conductive contact pins 7, 8.
  • Two insulating plates designed as contact foils 9, 10 are arranged below the contact mat.
  • the contact film 9 is provided on both sides with conductor tracks and with contact points 11, 12, 13, 14, the contact film 10 only on one side with the contact points 15, 16. Between the contact films there is an intermediate film 17 made of insulating material, which has recesses 18 in the area of the contact points , 19 has.
  • the contact foils 9, 10 are arranged between the contact mat 6 and a pressure plate 20.

Landscapes

  • Push-Button Switches (AREA)
EP84102871A 1983-03-18 1984-03-15 Installation d'interrupteur à bouton-poussoir Withdrawn EP0119603A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3309816 1983-03-18
DE19833309816 DE3309816A1 (de) 1983-03-18 1983-03-18 Tastschaltvorrichtung

Publications (2)

Publication Number Publication Date
EP0119603A2 true EP0119603A2 (fr) 1984-09-26
EP0119603A3 EP0119603A3 (fr) 1986-10-08

Family

ID=6193915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102871A Withdrawn EP0119603A3 (fr) 1983-03-18 1984-03-15 Installation d'interrupteur à bouton-poussoir

Country Status (4)

Country Link
EP (1) EP0119603A3 (fr)
AU (1) AU545022B2 (fr)
DE (1) DE3309816A1 (fr)
NO (1) NO840708L (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504424A1 (de) * 1985-02-07 1986-08-07 Deutsche Telephonwerk Kabel Schaltfolientastatur
DE3703546A1 (de) * 1987-02-06 1988-08-18 Telefunken Electronic Gmbh Schalter mit einer geschlossenen schaltmatte

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329226B2 (fr) * 1973-08-23 1978-08-19
US4307268A (en) * 1978-11-17 1981-12-22 Rogers Corporation Tactile element and keyboard including the tactile element
DE3041859A1 (de) * 1980-11-06 1982-06-03 Preh Elektro Feinmechanik Tastatur
DE8105649U1 (de) * 1981-02-27 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Tastatur für Fernsprechgeräte

Also Published As

Publication number Publication date
AU545022B2 (en) 1985-06-27
NO840708L (no) 1984-09-19
EP0119603A3 (fr) 1986-10-08
AU2568084A (en) 1984-09-20
DE3309816A1 (de) 1984-09-20

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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

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AK Designated contracting states

Designated state(s): AT BE CH DE IT LI NL

17P Request for examination filed

Effective date: 19841221

PUAL Search report despatched

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AK Designated contracting states

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Designated state(s): AT BE CH DE IT LI NL

17Q First examination report despatched

Effective date: 19870813

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19871209

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WAECHTLER, RUDOLF, DR. ING.

Inventor name: REUSCHEL, JUERGEN

Inventor name: HEISS, REINHOLD, DIPL.-ING.