EP0201572B1 - Clavier pour interrupteurs ou objet similaire - Google Patents

Clavier pour interrupteurs ou objet similaire Download PDF

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Publication number
EP0201572B1
EP0201572B1 EP85905769A EP85905769A EP0201572B1 EP 0201572 B1 EP0201572 B1 EP 0201572B1 EP 85905769 A EP85905769 A EP 85905769A EP 85905769 A EP85905769 A EP 85905769A EP 0201572 B1 EP0201572 B1 EP 0201572B1
Authority
EP
European Patent Office
Prior art keywords
keyboard
keyboard body
switches
housing
conductor paths
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.)
Expired - Lifetime
Application number
EP85905769A
Other languages
German (de)
English (en)
Other versions
EP0201572A1 (fr
Inventor
Wolf Neumann-Henneberg
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.)
Marquardt GmbH
Original Assignee
Marquardt 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 Marquardt GmbH filed Critical Marquardt GmbH
Publication of EP0201572A1 publication Critical patent/EP0201572A1/fr
Application granted granted Critical
Publication of EP0201572B1 publication Critical patent/EP0201572B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/008—Adhesive means; Conductive adhesive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/054—Mounting of key housings on same printed circuit

Definitions

  • the invention relates to a keyboard for side-by-side switches, keys or the like. According to the preamble of claim 1 and is based on WO-A1-84 / 00846.
  • the invention further relates to a method for producing a keyboard.
  • keyboards In the production of keyboards, three different manufacturing processes are known in principle.
  • the most common keyboard arrangement is a sheet metal frame, which is equipped with key modules and which is then mounted on a circuit board.
  • the problem arises that in the case of keyboards with a large number of key modules and decoupling diodes, a large number of soldering pins have to be inserted into the printed circuit board. This goes so far that with a keyboard with approx. 70 keys and 70 decoupling diodes and a few LEDs for display, more than 150 pins have to be inserted into the circuit board at the same time.
  • a keyboard of the generic type has become known from WO-A1-84 / 00 846, in which a housing lower part with recesses which is common to all switches or keys is provided.
  • the purpose of the provided elongated recesses in the keyboard frame is the arbitrary arrangement of the switches in a universal body.
  • the invention has for its object to propose an even more efficient production of electrical keyboards, power strips, but also LEDs and decoupling diodes with fewer components and a method by which a particularly inexpensive and simple rationalized assembly is created.
  • a part of the housing in particular the lower housing part of each key, is thus simultaneously formed as a frame for the keyboard body.
  • the underside of the frame is designed so that a flat surface for receiving a conductor track is created, which is required for the matrix of a keyboard. This saves a separate circuit board.
  • the conventional keyboard frame and the lower housing parts of the switches are therefore replaced by a common base, in particular with a flat base, so that it can be provided with conductor tracks.
  • This combines three functions in one component, namely the keyboard frame, the switch housing and the printed circuit board.
  • the entire keyboard body is formed from an injection molded part, recesses or recesses being provided which form the lower housing part, onto which the individual parts of the switches and the upper housing part are placed.
  • the narrow tolerances necessary in the keyboard z. B. to guide the key plunger are achieved in the upper part of the housing.
  • the injection molded part can be designed with larger tolerances (claim 3).
  • the keyboard 10 shown in Figures 1 and 2 consists of a keyboard frame 11, which is designed as an injection molded part.
  • the keyboard frame 11 or also called the keyboard body 11 contains recesses 12 for receiving the switch 13, consisting of an assembly with an unspecified contact set, return spring, actuating plunger and actuating lever.
  • the recesses 12 therefore serve as switch housing lower parts for receiving the individual keys or individual switches on the keyboard.
  • the underside 16 of the keyboard body 11 is flat. Conductor tracks 17 are applied to them in the screen printing process.
  • the keyboard body 11 thus serves simultaneously as a keyboard frame and as a printed circuit board with conductor tracks, the recesses 12 simultaneously serving as the lower housing part of the switches, keys or the like.
  • the conductor tracks are applied by screen printing after the spraying process.
  • This keyboard injection part can then be further processed in the automatic assembly, the moving contact parts, the return spring and the keyboard plunger 19 are inserted and finally the lid of the switch top 14 is snapped such that all parts are fixed in position. This means that all keys and the keyboard are installed at the same time.
  • the fixed contact points 15 are then introduced and electrically conductively connected by means of conductive adhesive 18.
  • the matrix required for the keyboard is also populated by equipping the keyboard body 11, the separate circuit board being saved.
  • the advantage of automation can still be used in that the connection of the fixed contact parts or other connections such as LED connections or decoupling diodes to the conductor track is made directly by conductive adhesive.
  • the entire keyboard no longer has to be passed over a solder bath, i. H. the assembly machine that assembles the key can also be used as a keyboard machine.
  • the present invention then also allows, contrary to the problems in the manufacture of membrane keys, to continue to use connection techniques that have been customary in the keyboard itself. In this way, connector strips or LEDs, decoupling diodes, etc. can also be installed.

Landscapes

  • Push-Button Switches (AREA)

Abstract

On propose un composant électrique, par exemple un clavier, dans lequel pour rendre sa fabrication plus aisée un élément de clavier sert de partie inférieure du boîtier pour des interrupteurs ou touches individuels et en même temps de plaquette imprimée. A cette fin des dégagements (12) sont prévus dans la partie clavier (11) pour recevoir les interrupteurs individuels (13), alors qu'on imprime du côté inférieur (16) des pistes conductrices par la technique sérigraphique.

Claims (5)

1. Clavier, pour interrupteurs, touches ou analogues disposés les uns à côté des autres, comportant une partie supérieure de boîtier à interrupteurs, à touches, ou analogues (14), en vue de loger les parties individuelles d'interrupteur telles que les parties de contact, les ressorts de rappel, les poussoirs de clavier ou analogues, et comportant un corps de clavier (11) commun à tous les interrupteurs ou analogues, qui constitue, à l'aide de ses évidements (12) les parties inférieures de boîtier des interrupteurs ou analogues, en vue de loger les parties supérieures de boîtier des interrupteurs ou analogue, des broches de raccordement traversant le corps de clavier (11) en direction de la face inférieure plane (16) du corps de clavier (11), et en ce que des broches de contact fixes (15) sont prévues, servant de broche de raccordement d'interrupteur, traversant le corps de clavier (11) et pénétrant les pistes conductrices (17), caractérisé en ce que la face inférieure commune (16) du corps de clavier (11) présente des pistes conductrices (17) imprimées, en ce que les broches de raccordement d'inter- .rupteur (15), traversant le corps de clavier (11) et pénétrant dans les pistes conductrices (17), sont fixées au corps de clavier (11) et à la piste conductrice (17) au moyen d'une colle conductrice (18).
2. Clavier selon la revendication 1, caractérisé en ce que des pistes conductrices sont appliquées sur la face inférieure plane (16) du corps de clavier (11), par un procédé d'impression (impression sérigraphique, impression au tampon).
3. Clavier selon la revendication 1 ou 2, caractérisé en ce que le corps de clavier commun (11) est fabriqué à partir d'une pièce moulée par injection.
4. Clavier selon l'une des revendications 1 à 3, caractérisé en ce que les supports nécessaires au guidage du poussoir de touche (19) sont réalisés, indépendamment du corps de clavier (11).
5. Procédé de fabrication d'un clavier pour interrupteurs, touches ou analogues, caractérisé en ce qu'on fabrique selon un procédé de moulage par injection un corps de clavier (11) avec des évidements constituant des parties inférieures du boitier (12) et destinés à recevoir des touches individuelles (13), on imprime par procédé sérigraphique des pistes conductrices (17) sur sa face inférieure plane, en ce que le corps de clavier (11) présente dans les pistes conductrices (17) des broches de contact fixes (15) pénétrantes qui sont reliées de manière électriquement conductrice au corps de clavier (11) et aux pistes conductrices (17), au moyen d'un adhésif conducteur (18), et en ce que dans une phase opératoire automatique suivante, les parties de contact mobiles telles que les ressorts de rappel, les poussoirs et analogues, ainsi que le couvercle à déclic sont susceptibles d'être montées dans la partie supérieure de boîtier, le montage des interrupteurs et le montage du clavier s'effectuant simultanément.
EP85905769A 1984-11-09 1985-11-07 Clavier pour interrupteurs ou objet similaire Expired - Lifetime EP0201572B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843440979 DE3440979A1 (de) 1984-11-09 1984-11-09 Elektrisches bauelement wie tastatur o.dgl.
DE3440979 1984-11-09

Publications (2)

Publication Number Publication Date
EP0201572A1 EP0201572A1 (fr) 1986-11-20
EP0201572B1 true EP0201572B1 (fr) 1990-03-07

Family

ID=6249911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905769A Expired - Lifetime EP0201572B1 (fr) 1984-11-09 1985-11-07 Clavier pour interrupteurs ou objet similaire

Country Status (3)

Country Link
EP (1) EP0201572B1 (fr)
DE (2) DE3440979A1 (fr)
WO (1) WO1986003053A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647651B2 (fr) * 1974-01-11 1981-11-11
DE2462035C3 (de) * 1974-08-22 1981-10-08 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Tastatur
DE2649944C2 (de) * 1976-10-30 1982-12-09 Rafi Gmbh & Co Elektrotechnische Spezialfabrik, 7981 Berg Wasserdichte Tastatur
DE2713207A1 (de) * 1977-03-25 1978-10-05 Telefonbau & Normalzeit Gmbh Tastatur
DE7924072U1 (de) * 1979-08-24 1981-02-26 Philips Patentverwaltung Gmbh, 2000 Hamburg Drucktaste
DE3100053C2 (de) * 1981-01-02 1986-05-15 Karl 7298 Loßburg Hehl Tastatur zur Bedienung der elektronischen Steuerung einer Kunststoff-Spritzgießmaschine
FR2511941B1 (fr) * 1981-09-01 1988-02-05 Telemecanique Electrique Clavier modulaire, etanche, a effet tactile
FR2531789B1 (fr) * 1982-08-11 1986-11-14 Bourrieres Francis Clavier universel au pas de 19,05 mm pour l'introduction de donnees
DE3305556C1 (de) * 1983-02-18 1984-09-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Tastenschalterfeld für ein elektrisches Gerät
US4460810A (en) * 1983-06-20 1984-07-17 Amp Incorporated Keyboard switch having integral bezel

Also Published As

Publication number Publication date
EP0201572A1 (fr) 1986-11-20
WO1986003053A1 (fr) 1986-05-22
DE3576427D1 (de) 1990-04-12
DE3440979A1 (de) 1986-05-15

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