EP0222106B1 - Interrupteur à bouton-poussoir - Google Patents

Interrupteur à bouton-poussoir Download PDF

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Publication number
EP0222106B1
EP0222106B1 EP86112672A EP86112672A EP0222106B1 EP 0222106 B1 EP0222106 B1 EP 0222106B1 EP 86112672 A EP86112672 A EP 86112672A EP 86112672 A EP86112672 A EP 86112672A EP 0222106 B1 EP0222106 B1 EP 0222106B1
Authority
EP
European Patent Office
Prior art keywords
switch
push button
contacts
button device
inner region
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
EP86112672A
Other languages
German (de)
English (en)
Other versions
EP0222106A2 (fr
EP0222106A3 (en
Inventor
Jürgen Dipl.-Ing. Oelsch
Gerhard Hochgesang
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.)
Preh GmbH
Original Assignee
Preh 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 Preh GmbH filed Critical Preh GmbH
Publication of EP0222106A2 publication Critical patent/EP0222106A2/fr
Publication of EP0222106A3 publication Critical patent/EP0222106A3/de
Application granted granted Critical
Publication of EP0222106B1 publication Critical patent/EP0222106B1/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
    • 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
    • H01H13/705—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 characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/006—Only mechanical function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/006—Switch site location more then one pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/018—Consecutive operations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2237/00—Mechanism between key and laykey
    • H01H2237/004—Cantilever

Definitions

  • the invention relates to a pushbutton switch device with a flat carrier on which switch contacts are arranged, and with a button arrangement with a plurality of resilient switch buttons for actuating the switch contacts, two switch contacts, each consisting of a contact pair, closing when a switch button is actuated.
  • Such a key switch device which corresponds to the preamble of claim 1, is known from DE-A-33 00 186 ( Figure 4).
  • two switch contacts are arranged independently of one another electrically on a flat carrier.
  • An associated switch button which forms the switching contacts by arching a switching chamber, has a separate button part for each switching contact. If the switch button is actuated, its stroke up to the actuation of the one switch contact is greater than its stroke until the other switch contact is actuated.
  • the button parts of the push button are designed as switching knobs which are offset in the stroke direction.
  • Switching chambers are formed on the flat carrier, in which two switching contacts are arranged one above the other.
  • the assigned switch button has a rubber-elastic switch knob for closing the contacts. If the switch knob is actuated, the upper switch contact and then the lower switch contact are closed first because the switch contacts are arranged one above the other.
  • the object of the invention is to propose a pushbutton switch device of the type mentioned in the introduction, in which a successive switching sequence of the switching contacts arranged in a space-saving manner within a switching chamber by a e.g. selectable design of the button arrangement is ensured in the course of the assembly.
  • the above object is achieved in a pushbutton switch device of the type mentioned at the outset in that the respective contact surfaces of the switch contacts to be actuated face each other in that the switch button has a switch knob and a spring-elastic insert which extends over the switch contacts assigned to this switch switch and between the switch knob and the switching contacts are arranged such that the insert part has an inner region, an outer region and an edge region and the inner region is connected to the outer region via a web and the outer region is connected to the edge region via a further web so that the first button part formed on the inner region is acted upon the switching knob first actuates one switching contact and then pulls the second button part in such a way that it subsequently actuates the second switching contact.
  • the expedient design of the pushbutton switch device advantageously make it possible, even while a keyboard is being assembled, to select the position within its key matrix at which a switch pushbutton is to close two switch contacts one after the other when it is actuated.
  • the insert part of the switch button is a simple part, for example made of elastic plastic. The insert only has to be inserted in the case of switch buttons that require the actuation of two switch contacts one after the other.
  • the resilient insert is electrically conductive and acts as a contact element on a switching plane that is directly acted upon.
  • a key switch device has a key arrangement 1, which is provided with a rubber-elastic switching mat 2, on which a plurality of switching knobs 3 are formed.
  • the switch mat 2 is fastened on a dimensionally stable support plate 4, which has 3 recesses 5 under the switch knobs.
  • Conventional keys can be arranged in a frame above the switching knobs 3.
  • a spacer film 6 is glued under the carrier plate 4.
  • This has a recess 7 under the recess 5, which is additionally provided with cutouts 8.
  • An insert 9, which has a circular outline, is inserted into the recess 7 and possibly into the recess 5. For the alignment of the insert 9, this finger 10 has which are in the cutouts 8.
  • a flat carrier 11 with switching contacts 13 and 14 arranged side by side in switching chambers 12 is glued under the spacing film 6.
  • the switching chambers 12 are located under the switching knobs 3. It is not necessary for 12 switching contacts 13 and 14 to be arranged next to one another in all switching chambers.
  • the insert 9 is not necessary via switching chambers with only one switching contact.
  • the flat carrier 11 is formed by a film circuit consisting of a spacer film 15 and conductor films 16 and 17, the conductor tracks of the conductor films 16 and 17 in the switching chamber 12 contact surfaces Form 13 'or 13' 'and contact surfaces 14' or 14 ''.
  • the contact surfaces 13 'and 13' 'or 14' and 14 '' of the two switching contacts 13 and 14 are directly opposite.
  • the insert 9 has an annular edge region 18 which is supported on the carrier 11. Within the edge area 18 there is an annular outer area 19 and a likewise annular, but smaller inner area 20 of the insert 9.
  • the areas 18, 19 and 20 are concentric.
  • the outer region 19 is connected to the edge region 18 with a web 21.
  • the inner region 20 is connected to the outer region 19 by means of a web 22.
  • the insert 9 is formed by a resilient plastic part.
  • the webs 21 and 22 are offset by 180 o with respect to the circumference of the areas 18, 19 and 20, so that there is a staggered deflection of the inner area 20 with respect to the outer area 19 and the outer area 19 with respect to the edge area 18.
  • the inner region 20 forms a button part 23.
  • the inner region 20 forms a button part 24.
  • the button parts 23 and 24 are designed to be spherically raised in relation to their immediate surroundings.
  • the alignment of the insert part 9 by the fingers 10 or the cutouts 8 ensures that the button part 23 in an alignment with the contact surfaces 13 'and 13' 'and the button part 24 in an alignment with the contact surfaces 14' and 14 ' 'stands, with the contact surfaces running parallel to each other. If the contact surfaces 13 ', 13' ', 14' and 14 '' were rings as concentric with the areas 19 and 20, alignment by means of the fingers 10 could be omitted.
  • the switching knob 3 has an integral shape 25 on the inside, which is arranged in such a way that when it is pressed on the switching knob 3 it hits the inside 20, but not the outside 19. Accordingly, the end face 25 'is largely curved.
  • the functioning of the exemplary embodiment described is approximately as follows: If the button (not shown in more detail) is pressed, then the switching knob 3 deforms and its molding 25 presses with the end face 25 'onto the molding 28 of the inner region 20 of the insert part 9. As a result, the button part 23 presses onto the conductor foil 17 such that the contact surfaces Touch 13 'and 13''. As a result, the first switch contact 13 is closed.

Landscapes

  • Push-Button Switches (AREA)

Claims (11)

  1. Dispositif d'interrupteur à touches, comportant un support (11) plat, sur lequel sont disposés des contacts (13, 14) d'interrupteur, et comportant un agencement (1) de touches muni de plusieurs touches (3, 9) destinées à l'actionnement des contacts (13, 14) d'interrupteur, un actionnement d'une touche (3, 9) d'interrupteur provoquant la fermeture de deux contacts d'interrupteur (13, 14), constitués chacun par une paire d'éléments de contact et disposés l'un à côté de l'autre dans une chambre d'interrupteur (2) et qui sont électriquement indépendants, une surface de contact (23, 24) particulière étant associée aux contacts (13, 14) sur la touche (3, 9) et la course de la touche d'interrupteur (3, 9) jusqu'à l'actionnement de l'un des contacts (14) étant plus longue que la course jusqu'à l'actionnement de l'autre contact (13), dispositif caractérisé en ce que,dans les contacts (13, 14) d'interrupteur qui doivent être actionnés, les surfaces de contact (13', 13'' ou 14', 14'') respectives de ceux-ci sont situées les unes en face des autres; en ce que la touche (3, 9) d'interrupteur présente une saillie (3) d'interrupteur et une pièce insérée (9) élastique à effet de ressort, qui s'étend au-dessus des contacts (13, 14) d'interrupteurs associés à cette touche d'interrupteur et qui est disposée entre la saillie (3) d'interrupteur et les contacts (13, 14) d'interrupteurs; en ce que la pièce insérée (9) présente une zone intérieure (20), une zone extérieure (19) et une zone de bord (18); en ce que la zone intérieure (20) est reliée à la zone extérieure (19) par une partie de liaison (22) et en ce que la zone extérieure (19) est reliée à la zone de bord (18) par une autre partie de liaison (21), de façon telle que la première partie (23) de surface de contact formée sur la zone intérieure (20) actionne d'abord, lorsque la saillie (3) d'interrupteur est placée sous contrainte, l'un des contacts (13) d'interrupteur, puis entraîne la deuxième partie (24) de surface de contact de façon telle que celle-ci actionne ensuite le deuxième contact (14) d'interrupteur.
  2. Dispositif d'interrupteur à touches selon la revendication 1, caractérisé en ce que la zone extérieure (19) entoure, en formant un anneau circulaire, la zone intérieure (20).
  3. Dispositif d'interrupteur à touches selon la revendication 1 ou 2, caractérisé en ce que, sur la zone extérieure (19), les parties de liaison (21, 22) sont décalées d'environ 180°.
  4. Dispositif d'interrupteur à touches selon une des revendications 1 à 3, caractérisé en ce que les parties (23, 24) formant des surfaces d'interrupteur sont disposées de façon approximativement diamétrale.
  5. Dispositif d'interrupteur à touches selon une des revendications 1 à 4, caractérisé en ce que, sur la zone intérieure (20), au voisinage de la partie (23) formant surface d'interrupteur, est disposée une partie (28) formée sur celle-ci, qui dépasse en direction de la saillie (3) d'interrupteur et qui réduit la course.
  6. Dispositif d'interrupteur à touches selon une des revendications 1 à 5, caractérisé en ce que la saillie (3) d'interrupteur présente du côté intérieur une partie (25) formée sur cette saillie (3) et qui atteint la zone intérieure (20).
  7. Dispositif d'interrupteur à touches selon la revendication 6, caractérisé en ce que la partie (25), qui a été formée sur la saillie (3) et qui comporte une surface frontale (25') à l'écart de la partie (23) formant surface d'interrupteur, atteint la zone intérieure (20).
  8. Dispositif d'interrupteur à touches selon une des revendications 1 à 7, caractérisé en ce que la pièce insérée (9) est en matière plastique élastique à effet de ressort.
  9. Dispositif d'interrupteur à touches selon une des revendications 1 à 8, caractérisé en ce que la pièce insérée (9) pénètre par des doigts (10) dans des découpes (8) d'une feuille mince (6) de maintien d'écartement.
  10. Dispositif d'interrupteur à touches selon une des revendications 1 à 9, caractérisé en ce que la pièce insérée (9) est un élément électriquement conducteur.
  11. Dispositif d'interrupteur à touches selon une des revendications 1 à 10, caractérisé en ce que l'agencement (1) de touches présente une plaque (4) de support rigide et de forme stable.
EP86112672A 1985-10-12 1986-09-13 Interrupteur à bouton-poussoir Expired - Lifetime EP0222106B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3536539 1985-10-12
DE19853536539 DE3536539A1 (de) 1985-10-12 1985-10-12 Tastschaltereinrichtung

Publications (3)

Publication Number Publication Date
EP0222106A2 EP0222106A2 (fr) 1987-05-20
EP0222106A3 EP0222106A3 (en) 1989-07-12
EP0222106B1 true EP0222106B1 (fr) 1991-12-18

Family

ID=6283499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112672A Expired - Lifetime EP0222106B1 (fr) 1985-10-12 1986-09-13 Interrupteur à bouton-poussoir

Country Status (3)

Country Link
US (1) US4720609A (fr)
EP (1) EP0222106B1 (fr)
DE (1) DE3536539A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63284622A (ja) * 1987-05-18 1988-11-21 Bandai Co キ−ボ−ド
DE3919099A1 (de) * 1989-06-10 1990-12-20 Telefunken Electronic Gmbh Mehrstufiger schalter
JP2557557Y2 (ja) * 1991-02-12 1997-12-10 ミネベア株式会社 キースイッチ
US5145058A (en) * 1991-07-16 1992-09-08 Lee Sam San Notebook computer key
US5199556A (en) * 1991-10-08 1993-04-06 Silitek Corporation Structure of key switch
US5380969A (en) * 1993-04-28 1995-01-10 Sen-Cheng Wang Computer key
NL9301918A (nl) * 1993-11-05 1995-06-01 Chicony Electronics Co Constructie van een toetsschakelaar.
US5559311A (en) * 1994-12-27 1996-09-24 General Motors Corporation Dual detent dome switch assembly
US5510584A (en) * 1995-03-07 1996-04-23 Itt Corporation Sequentially operated snap action membrane switches
US5834714A (en) * 1996-04-30 1998-11-10 Staco Switch, Inc. Double actuator elastomeric switch
JP3820680B2 (ja) * 1997-06-11 2006-09-13 松下電器産業株式会社 プッシュスイッチ及びその組立て方法
USD409151S (en) * 1997-10-21 1999-05-04 Staco Switch, Inc. Elastomeric switch
US6909354B2 (en) * 2001-02-08 2005-06-21 Interlink Electronics, Inc. Electronic pressure sensitive transducer apparatus and method for manufacturing same
US7050045B2 (en) * 2003-01-07 2006-05-23 Interlink Electronics, Inc. Miniature highly manufacturable mouse pointing device
US7097064B2 (en) * 2004-01-28 2006-08-29 Meyer Intellectual Properties Limited Double wall cooking vessel
DE102008006477B3 (de) * 2008-01-29 2009-02-12 Preh Gmbh Mehrstufiger Schalter mit auf Magnetkraft basierender Hebelbetätigungsmechanik

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2230479A1 (de) * 1972-06-22 1974-01-10 Philips Patentverwaltung Drucktaste
US4029916A (en) * 1975-04-18 1977-06-14 Northern Electric Company Limited Multi-contact push-button switch and plural embodiment for keyboard switch assembly
US3996429A (en) * 1975-04-18 1976-12-07 Northern Electric Company Limited Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
US3969600A (en) * 1975-06-11 1976-07-13 Burroughs Corporation Tactile feedback keyboard switch assembly and actuator
DE2902769C2 (de) * 1979-01-25 1982-12-09 Rudolf Schadow Gmbh, 1000 Berlin Drucktastenschalter
DE3041859A1 (de) * 1980-11-06 1982-06-03 Preh Elektro Feinmechanik Tastatur
US4385218A (en) * 1981-04-21 1983-05-24 Matsushita Electric Industrial Co., Ltd. Electric switch
CH658744A5 (de) * 1982-04-30 1986-11-28 Gfeller Ag Druckschalter mit einer laengs einer fuehrung beweglichen taste.
US4567469A (en) * 1983-01-14 1986-01-28 Polytel Corp. Matrix keyboard
DE3329827A1 (de) * 1983-08-18 1985-03-14 Schmidt Kg Schiederwerk G Tastenschalter

Also Published As

Publication number Publication date
DE3536539A1 (de) 1987-04-16
EP0222106A2 (fr) 1987-05-20
EP0222106A3 (en) 1989-07-12
DE3536539C2 (fr) 1988-06-23
US4720609A (en) 1988-01-19

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