EP0446088B1 - Schalter mit Berührungseffekt und diesen Schalter verwendende Tastatur - Google Patents

Schalter mit Berührungseffekt und diesen Schalter verwendende Tastatur Download PDF

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Publication number
EP0446088B1
EP0446088B1 EP91400377A EP91400377A EP0446088B1 EP 0446088 B1 EP0446088 B1 EP 0446088B1 EP 91400377 A EP91400377 A EP 91400377A EP 91400377 A EP91400377 A EP 91400377A EP 0446088 B1 EP0446088 B1 EP 0446088B1
Authority
EP
European Patent Office
Prior art keywords
switch
key
stud
membrane
resiliently deformable
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
EP91400377A
Other languages
English (en)
French (fr)
Other versions
EP0446088A1 (de
Inventor
Claude Bedoya
Alain Cognard
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.)
Thales Avionics SAS
Original Assignee
Thales Avionics SAS
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 Thales Avionics SAS filed Critical Thales Avionics SAS
Publication of EP0446088A1 publication Critical patent/EP0446088A1/de
Application granted granted Critical
Publication of EP0446088B1 publication Critical patent/EP0446088B1/de
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
    • H01H13/7006—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 comprising a separate movable contact element for each switch site, all other elements being integrated in layers
    • 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
    • H01H13/703—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 spacers between contact carrying layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2211/00—Spacers
    • H01H2211/026—Spacers without separate element
    • H01H2211/028—Contacts in depressions of layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/02—After travel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/002—Actuators integral with membrane

Definitions

  • a keyboard with keys of this type is known, the above deformable means of which consist of a flexible membrane common to all the keys and placed above the support plate to protect the cells and ensure the elastic return of the keys to which said membrane is connected by pinching with an element of the switch.
  • the object of the invention is more particularly to remedy these drawbacks and to provide the user with a perfectly waterproof keyboard with tactile effect controlled throughout the duration of the maneuver.
  • the aforesaid membrane, the aforesaid pin as well as possibly the aforesaid key can form a single piece made of an elastically deformable material such as, for example, an elastomer.
  • the pin may have a cylindrical and / or frustoconical shape whose large base, which merges with the membrane, comes to bear on an elastically deformable member of the switch.
  • the desired tactile effect can be obtained by an appropriate choice of the elastic modulus of the elastomer, the shape and the height of the pin, as well as the dimensions and the conformation of the key.
  • the elastically deformable member of the switch may consist of a blade or a snap-action cup which deforms elastically only from a predetermined force threshold.
  • the invention also relates to a keyboard produced using the previously defined key.
  • the aforesaid support may be in the form of a plate, for example a printed circuit plate, provided with a plurality of cells capable of each receiving a switch element.
  • This plate is then covered by the aforementioned membrane which comprises, at each of the cells, an elastically deformable pin actuable by a key.
  • the keyboard portion 1 shown in FIG. 1 comprises a support plate 2 constituted by a printed circuit allowing in particular the electrical connection of said keyboard 1 to an apparatus (not shown).
  • the support plate 2 is provided with a plurality of cells 3 arranged in rows and / or columns. Each of these cells 3 constitutes the housing a switch 4 formed of conductive elements or studs 5, 6, 7 disposed at the bottom of the cell 3 and capable of cooperating by electrical contact with a conductive blade 18 elastically deformable and acting by snapping effect, this in order to establish the connection of pad 6 with pads 5 and 7.
  • the cells 3 are recessed under the upper plane of the support plate 2 or printed circuit on which is arranged a membrane 8 constituting deformable means which, associated with a set 9 push-button-switch, provide the user with a tactile sensation.
  • the membrane 8 is full, that is to say having no opening to allow the passage of one of the elements of the assembly 9. It is made of an elastomeric material and is bristled as much pins 10 that there are switches 4 to control.
  • the pins 10 are axially deformable in compression. They came integrally with said membrane 8 and are capable of interposing, during the mounting of the latter, between a button 11 and the switch 4 to constitute a pusher.
  • each of the pins is fixed to the support plate 2 so that each of the pins is in the axis of a corresponding cell 3.
  • this fixing is ensured by means of an openwork structure 12 having the form of a grid, comprising a plurality of cavities 16 separated by partitions 14, 15, this structure 12 being disposed on the membrane 8 and fixed on the support plate 2 thanks to fixing means such as hot crimping elements 13 or even screws (not shown).
  • each of the cavities 16 is intended to receive a corresponding pin 10 and to ensure the axial guidance of the button 11 associated with this pin 10.
  • the pin 10 or pusher thus consists of a mass of elastomer with a variable frustoconical section, the large base of which merges with the membrane 8.
  • the elastic modulus of this elastomer is chosen to be relatively low.
  • these means for limiting the expansion of the pin 10 are constituted by a lower cavity 19 of the key 11 in which the pin 10 is housed and centered.
  • the dimensions and the shape of the cavity 19 are such that they allow its free expansion in the precourse phase OF corresponding to the crushing ⁇ (measured relative to the reference plane PP ′ of the apex of the pin 10 in the rest position) and to contain said expansion during the overtravel F ′, F ⁇ corresponding to the crushing ⁇ ′ for a predetermined volume of the pin 10 corresponding to that of the cavity 19 whose edges 19 a are in this case chamfered.
  • the button 11 is completely pressed into the cavity 16 of the structure 12.
  • an important advantage of the solution proposed by the present invention consists in that it makes it possible to avoid all the risks of rupture, of seizure of moving parts known in mechanical controls called “pumps” comprising several parts, springs, axes, moving parts, etc., and that, while maintaining the ergonomic contact characteristics throughout the duration of the race.

Landscapes

  • Push-Button Switches (AREA)

Claims (6)

  1. Schalter mit Berührungseffekt, der aufweist :
    - einen Träger mit einer Zelle, die ein Schalterelement (18) aufnehmen kann, welches unter der Wirkung eines eine bestimmte Schwelle überschreitenden Druckes betätigbar ist,
    - eine elastische, mit dem Träger (2) fest verbundene, Membran (8), die eine die Zelle (3) verschliessende Kappe bildet und auf der der Zelle (3) abgekehrten Seite und im wesentlichen koaxial zur Zelle einen elastisch verformbaren Zahn (10) trägt, der als Drücker wirkt,
    - eine dem Drücker zugeordnete Taste (11), auf die ein Druck zur Betätigung des Schalterelementes (18) ausgeübt werden kann,
    dadurch gekennzeichnet, dass der Zahn (10) aus einem elastisch verformbaren Material mit niedrigem Elastizitätsmodul hergestellt ist und die Unterseite der Taste (11) eine Vertiefung (19) aufweist, in die der Zahn (10) eindringt, sodass, wenn die Taste (11) einem Betätigungsdruck unterworfen ist, man nacheinander erhält :
    - eine Etappe vor dem Hub, während derer die von der Taste (11) ausgeübte Widerstandskraft allmählich zunimmt, bis die auf besagte Taste (11) ausgeübte Kraft die Druckschwelle des Schaltelementes erreicht,
    - eine aktive Etappe, während derer der Hub der Taste (11) praktisch null ist, die Betätigung des Schalters durch eine teilweise Ausdehnung des Zahnmaterials verursacht wird und die Widerstandskraft plötzlich abnimmt und ein Gefühl der Freigabe hervorruft,
    - eine Hubüberschreitungsetappe, zu Beginn derer die Widerstandskraft wieder allmählich zunimmt und plötzlich ansteigt, wenn die Ausdehnung des Zahnes (10) die Vertiefung (19) der Taste ausgefüllt hat.
  2. Schalter nach Anspruch 1,
    dadurch gekennzeichnet, dass besagte Membran (8), besagter Zahn (10), sowie eventuell besagtes Teil aus elastisch verformbarem Material hergestellt sind.
  3. Schalter nach einem der Ansprüche 1 und 2,
    dadurch gekennzeichnet, dass der Zahn (10) eine zylindrische Form hat und/oder die Form eines Kegelstumpfes, dessen grosse, mit der Membran (8) verschmolzene, Basis auf einem elastisch verformbaren Element (18) des Schalters (4) zur Auflage kommt.
  4. Schalter nach Anspruch 3,
    dadurch gekennzeichnet, dass das elastisch verformbare Element (18) des Schalters (4) aus einer Zunge oder Kapsel mit Durchschlagseffekt besteht, die erst ab einer bestimmten Druckschwelle verformt wird.
  5. Tastatur, welche die gemäss einem der vorhergehenden Ansprüche hergestellten Schalter verwendet,
    dadurch gekennzeichnet, dass besagter Träger (2) die Form einer Platte mit einer Vielzahl von Zellen (3) hat, die jeweils ein Element eines Schalters (4) aufnehmen können, und besagte Platte dann von einer Membran überdeckt wird, die, in Höhe einer jeden Zelle, einen elastisch verformbaren Zahn aufweist, der von einer Taste betätigbar ist, die so ausgelegt ist, dass sie die Ausdehnung des Zahnmaterials begrenzt.
  6. Tastatur nach Anspruch 5,
    dadurch gekennzeichnet, dass besagte Platte eine gedruckte Leiterplatte ist.
EP91400377A 1990-03-08 1991-02-14 Schalter mit Berührungseffekt und diesen Schalter verwendende Tastatur Expired - Lifetime EP0446088B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002925 1990-03-08
FR9002925A FR2659459B1 (fr) 1990-03-08 1990-03-08 Touche a effet tactile et clavier utilisant cette touche.

Publications (2)

Publication Number Publication Date
EP0446088A1 EP0446088A1 (de) 1991-09-11
EP0446088B1 true EP0446088B1 (de) 1995-01-18

Family

ID=9394505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400377A Expired - Lifetime EP0446088B1 (de) 1990-03-08 1991-02-14 Schalter mit Berührungseffekt und diesen Schalter verwendende Tastatur

Country Status (4)

Country Link
US (1) US5172114A (de)
EP (1) EP0446088B1 (de)
DE (1) DE69106745T2 (de)
FR (1) FR2659459B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3806121B1 (de) * 2018-05-24 2025-07-02 Panasonic Intellectual Property Management Co., Ltd. Druckschalter

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US5231386A (en) * 1990-07-24 1993-07-27 Home Row, Inc. Keyswitch-integrated pointing assembly
US5541622A (en) * 1990-07-24 1996-07-30 Incontrol Solutions, Inc. Miniature isometric joystick
US5431064A (en) * 1992-09-18 1995-07-11 Home Row, Inc. Transducer array
JP3103833B2 (ja) * 1994-08-10 2000-10-30 信越ポリマー株式会社 照光式押釦スイッチ装置
JP2699936B2 (ja) * 1995-06-06 1998-01-19 日本電気株式会社 複合成形体の製造方法
JP3391172B2 (ja) * 1995-11-28 2003-03-31 松下電器産業株式会社 プッシュオンスイッチ
FR2755534B1 (fr) * 1996-11-06 1998-12-11 Apem Element formant bouton-poussoir electrique
JPH1173839A (ja) * 1997-09-01 1999-03-16 Alps Electric Co Ltd 押釦スイッチ
JP2000112626A (ja) * 1998-09-30 2000-04-21 Alps Electric Co Ltd キーボード装置
FR2803084B1 (fr) * 1999-12-27 2002-04-19 Itt Mfg Entpr S Inc Commutateur electrique a effet tactile fixe par emboitement elastique sur une plaque a circuits
US6271487B1 (en) 2000-03-21 2001-08-07 Itt Manufacturing Enterprises, Inc. Normally open extended travel dual tact switch assembly with sequential actuation of individual switches
FR2819111B1 (fr) * 2000-12-28 2003-03-07 Thomson Csf Module d'interconnexion pour fond de boitier d'appareillage electrique
US6967643B2 (en) * 2001-01-31 2005-11-22 Cts Corporation Tactile feedback for cursor control device
US6873316B2 (en) 2001-02-01 2005-03-29 Cts Corporation Suppression of cursor control during tactile feedback operation
US20030066739A1 (en) * 2001-07-02 2003-04-10 Rickenbach Roger D. Controller with tactile feedback
DE10145769A1 (de) * 2001-09-17 2003-04-24 Siemens Ag Tastatur für Kommunikationsendgeräte
JP4039030B2 (ja) * 2001-10-29 2008-01-30 松下電器産業株式会社 プッシュオンスイッチ
JP4359812B2 (ja) * 2002-07-08 2009-11-11 日本電気株式会社 スイッチ一体型筐体およびこれを有する電子機器
JP2004071225A (ja) * 2002-08-02 2004-03-04 Alps Electric Co Ltd 押釦スイッチ構造
US6770824B1 (en) * 2003-10-22 2004-08-03 Hewlett-Packard Development Company, L.P. Buckling key caps and method
US7012208B2 (en) * 2003-12-10 2006-03-14 Zippy Technology Corp. Thin switch
TWM256272U (en) * 2004-01-12 2005-02-01 Ta Ta Office Products Inc Structure for hole punching machine with tooling exchange seat
RU2329558C2 (ru) * 2005-10-11 2008-07-20 Открытое акционерное общество "Научно-производственный комплекс "ЭЛАРА" имени Г.А. Ильенко" (ОАО "ЭЛАРА") Кнопочный переключатель (варианты)
WO2007094483A1 (ja) * 2006-02-13 2007-08-23 Nec Corporation スイッチおよびこれを有する電子機器
US7825899B2 (en) * 2006-07-18 2010-11-02 Research In Motion Limited Piano-style keypad employing a light guide
US20090033521A1 (en) * 2007-08-01 2009-02-05 Ladouceur Norman M Key designs for compact keypad of handheld communication device
US8704648B2 (en) * 2008-02-29 2014-04-22 Blackberry Limited Reconfigurable keyfield on a communication device
FR2937789B1 (fr) * 2008-10-28 2010-12-31 Thales Sa Clavier a longue course de touches et a sensation tactile amelioree
JP4850888B2 (ja) * 2008-11-12 2012-01-11 株式会社沖データ ボタンキー構造、及び電子機器
FR2939215A1 (fr) * 2008-11-28 2010-06-04 Thales Sa Clavier retroeclaire etanche
JP5225179B2 (ja) * 2009-04-06 2013-07-03 東京パーツ工業株式会社 プッシュスイッチ
IT1398690B1 (it) * 2009-07-07 2013-03-08 Eltek Spa Interruttore per veicoli
DE102014219316B4 (de) * 2014-09-24 2026-02-05 Volkswagen Aktiengesellschaft Schalterbedienelement und Schalter
DE102014019248B4 (de) 2014-12-19 2017-05-11 Audi Ag Bedienvorrichtung für ein Fahrzeug, insbesondere einen Personenkraftwagen
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3806121B1 (de) * 2018-05-24 2025-07-02 Panasonic Intellectual Property Management Co., Ltd. Druckschalter

Also Published As

Publication number Publication date
FR2659459B1 (fr) 1993-11-26
DE69106745D1 (de) 1995-03-02
EP0446088A1 (de) 1991-09-11
DE69106745T2 (de) 1995-06-01
FR2659459A1 (fr) 1991-09-13
US5172114A (en) 1992-12-15

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