EP0088365B1 - Clavier - Google Patents

Clavier Download PDF

Info

Publication number
EP0088365B1
EP0088365B1 EP83102067A EP83102067A EP0088365B1 EP 0088365 B1 EP0088365 B1 EP 0088365B1 EP 83102067 A EP83102067 A EP 83102067A EP 83102067 A EP83102067 A EP 83102067A EP 0088365 B1 EP0088365 B1 EP 0088365B1
Authority
EP
European Patent Office
Prior art keywords
key
carrier plate
keyboard according
contact
edges
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
Application number
EP83102067A
Other languages
German (de)
English (en)
Other versions
EP0088365A1 (fr
Inventor
Hans-Joachim Viebrantz
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 EP0088365A1 publication Critical patent/EP0088365A1/fr
Application granted granted Critical
Publication of EP0088365B1 publication Critical patent/EP0088365B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01H3/12—Push-buttons
    • 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
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/01—Off centre actuation

Definitions

  • the invention relates to a keyboard with keys arranged in recesses in a carrier plate and with electrical switching contacts arranged on a contact plate below the keys, wherein tilting axes are provided between the key and the carrier plate and the key rests at an obtuse angle on inner edges of the recess, which lies between the side surfaces of the key head and a stop surface of the key foot projecting under the carrier plate relative to the key head, the side surfaces of the key head opposite the tilt axes being retracted for the tilting movement and the key base being under the action of a resilient return element.
  • Such a keyboard is known from US-A-4029915.
  • the stop surfaces of the key base rest flat on the carrier plate when the key is not actuated. They are not at free acute angles to the level of the carrier plate.
  • the tilt axes are on the outside on the edge of the key foot, but not on the edge of the recess.
  • the button When the button is pressed, it tilts around the edge of its button head, i.e. not around the edge of the recess in the carrier plate. Since, in the known keyboard, the edge of the key base around which the key tilts when actuated, that is to say the tilt axis, does not find a stop in the plane of the carrier plate, there is a tendency for the tilt axis to move. This in turn entails the risk that the button is stuck. This risk of pinching can be eliminated by a correspondingly large return spring. However, this means an additional increase in the restoring force that must be overcome when actuated.
  • the object of the invention is to provide a keyboard with a symmetrical tilting behavior of the keys, in which the tilting axis does not move when the key is pressed and in which the key switches the switch contact assigned to it when the key is pressed as well as when it is pressed off-center.
  • the above object is achieved with a keyboard of the type mentioned in the introduction in that the stop surfaces are at free acute angles to the inner surface of the carrier plate when the key is not actuated, such that the tilting axes are formed by the edges of the recess.
  • the tilting behavior of the button and thus the switching behavior of the contact is the same whether it is pressed more on one side or more on the other side.
  • the key tilts around one tilt axis without the other tilt axis influencing this. Otherwise, the button tilts around the other tilt axis.
  • the design of the tilt axes does not involve any additional restoring forces which would have to be overcome when actuated and which could lead to different actuating forces of the individual keys on the keyboard.
  • the necessary actuation force depends solely on the design of the contact plate. It is ensured that the tilt axis does not move when the button is pressed and that the button is reset regardless of whether the button is pressed more on one side or the other side or in the middle by the restoring force of the contact.
  • the acute angles are preferably dimensioned such that the stop surface adjacent to the respective tilt axis bears on the carrier plate when the button is pressed.
  • FIG. 1 shows a partial view of a keyboard in section.
  • the keyboard has a plurality of similar keys in a common carrier plate 2.
  • the carrier plate 2 is provided with a recess 3 in which the key 1 is seated.
  • the carrier plate 2 has 3 edges 4 and 5 in the recess.
  • a contact plate 6 is arranged below the carrier plate 2.
  • the contact plate 6 has a rubber mat 7 with knobs 8 and a printed circuit board 9 which is fastened below the rubber mat 7.
  • a conductor disk 10 is glued into the knob 8, which connects two electrical conductor tracks 11 and 12 of the printed circuit board 9 when the knob 8 is pressed down.
  • the key 1 sits in the recess 3 and lies on the knob 8 with a central contact attachment point 13 of its foot 14.
  • the foot 14 jumps under the support plate 2. From the attachment point 13, the foot 14 runs in slopes 15 and 16, which are at an angle W1 to the plane of the support plate 2.
  • the foot 14 merges with stop faces 17 and 18 into side faces 19 and 20 of a head 21 of the key 1.
  • the stop surface 17 and the side surface 19 and the stop surface 18 and the side surface 20 form an obtuse angle W2 in their transition region.
  • the transition areas are pressed against the edges 4 and 5 by the spring force of the knob 8.
  • the edges 4 and 5 run in a radius r around a point P.
  • the radius r is substantially larger than that of a fillet at the apex of the angle W2.
  • the key has a contact line Z or K with the edge 4 or 5 both in its stop surface 17 or 18 and in its side surface 19 or 20.
  • the line of contact K of the stop surface 17 or 18 is effective as a tilt axis when the key 1 is pressed.
  • the line of contact Z of the side surface 19 or 20 is effective when the key 1 is reset and improves the centering of the key 1 in its initial position.
  • the stop surfaces 17 and 18 form an acute angle W3 with the plane of the carrier plate 2.
  • the acute angles W1 and W3 are approximately the same size and are, for example, 12 °.
  • the side surfaces 19 and 20 are curved in a radius R around the point P. The radius R is dimensioned such that the side surfaces 19 and 20 do not strike the edge of the recess 3 before the conductor disk 10 connects the conductor tracks 11 and 12.
  • the vertices on both sides can detach from the edges 4 and 5 or the two contact lines Z.
  • the knob 8 is pressed together by the attachment point 13.
  • edges 4 and 5 can be formed with sharp edges in such a way that the lines of contact K and Z practically coincide.
  • the edge 4 or 5 lies directly in the apex of the obtuse angle W2 formed between the stop surface 17 or 18 and the side surface 19 or 20.

Claims (8)

1. Clavier comportant des touches (1) disposées dans des évidements (3) d'une plaque de support (2), ainsi que des contacts électriques d'enclenchement (10, 11, 12) situés sur une plaque de contact (6) au-dessous des touches (1), des axes de basculement (K) étant prévus entre la touche (1) et la plaque de support (2), et cette touche (1) étant appliquée, sur des arêtes internes (4, 5) de l'évidement (3), selon un angle obtus (W2) qui est formé entre les surfaces latérales (19 ou 20) de la tête (21) de la touche et une surface de butée (17 ou 18) de la base (14) de cette touche qui fait saillie au-dessous de la plaque de support (2) par rapport à la tête (21) de ladite touche, les surfaces latérales (19 ou 20) de la tête (21) de la touche opposées aux axes de basculement (K) prenant part au mouvement de basculement, et la base (14) de la touche étant soumise à l'action d'un élément élastique de rappel (8), clavier caractérisé par le fait que, lorsque la touche (1) n'est pas actionnée, les surfaces de butée (17, 18) décrivent nettement des angles aigus (W3) par rapport à la face interne de la plaque de support (2), de telle sorte que les axes de basculement (K) soient formés par les arêtes (4, 5) de l'évidement (3).
2. Clavier selon la revendication 1, caractérisé par le fait que les arêtes internes (4, 5) sont arrondies selon un rayon (r) qui est plus grand que le rayon d'un arrondi du sommet de l'angle obtus (W2) ; et par le fait que les surfaces de butée (17, 18) portent contre les arêtes (4, 5) par une ligne de contact (K) respective, les surfaces latérales (19, 20) portant contre lesdites arêtes par une autre ligne de contact (Z) respective.
3. Clavier selon l'une des revendications précédentes, caractérisé par le fait que les angles aigus (W3) sont dimensionnés de manière que, lorsque la touche est actionnée, la surface de butée (17, 18) voisine de l'axe de basculement considéré soit appliquée contre la plaque de support (2).
4. Clavier selon l'une des revendications précédentes, caractérisé par le fait que les surfaces latérales (19 ou 20) viennent se plaquer contre le bord de l'évidement (3) seulement après que les surfaces de butée (17 ou 18) ont accompli un pivotement selon l'angle aigu (W3).
5. Clavier selon la revendication 4, caractérisé par le fait que la dépouille des surfaces latérales (19, 20) opposées aux arêtes (4, 5) longe la ligne d'un tronçon d'arc de cercle.
6. Clavier selon l'une des revendications précédentes, caractérisé par le fait que la base (14) de la touche présente des rampes (15, 16), qui partent d'un point central (13) de butée de contact et s'étendent en formant un autre angle aigu (W1) avec le plan de la plaque de support (2).
7. Clavier selon la revendication 6, caractérisé par le fait que les premier et second angles aigus (W1, W3) sont égaux.
8. Clavier selon l'une des revendications précédentes, caractérisé par le fait que la plaque de contact (6) comporte un rembourrage en caoutchouc (7) pourvu d'une protubérance (8) douée d'élasticité, contre la face externe de laquelle la base (14) de la touche porte centralement, et sur la paroi interne de laquelle est fixé un disque conducteur (10) formant la pièce mobile d'enclenchement..
EP83102067A 1982-03-10 1983-03-03 Clavier Expired EP0088365B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3208559 1982-03-10
DE3208559A DE3208559C2 (de) 1982-03-10 1982-03-10 Tastatur

Publications (2)

Publication Number Publication Date
EP0088365A1 EP0088365A1 (fr) 1983-09-14
EP0088365B1 true EP0088365B1 (fr) 1986-10-22

Family

ID=6157786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102067A Expired EP0088365B1 (fr) 1982-03-10 1983-03-03 Clavier

Country Status (4)

Country Link
US (1) US4493959A (fr)
EP (1) EP0088365B1 (fr)
JP (1) JPS58169723A (fr)
DE (1) DE3208559C2 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618744A (en) * 1985-04-29 1986-10-21 Advanced Input Devices, Inc. Rocker key elastomer dome keyboard
US4786766A (en) * 1985-08-26 1988-11-22 Canon Kabushiki Kaisha Keyboard apparatus
DE3719793A1 (de) * 1987-06-13 1988-12-22 Standard Elektrik Lorenz Ag Elektrisches geraet mit einer wippentaste
US5144103A (en) * 1990-03-09 1992-09-01 Canon Kabushiki Kaisha Key switch
US5247143A (en) * 1990-03-09 1993-09-21 Canon Kabushiki Kaisha Key switch
JP2878464B2 (ja) * 1991-02-22 1999-04-05 アルプス電気株式会社 押釦スイツチ
JP2638395B2 (ja) * 1992-06-30 1997-08-06 株式会社セガ・エンタープライゼス コントロールキー装置
US5498843A (en) * 1992-06-30 1996-03-12 Sega Enterprises, Ltd. Control key multiple electrical contact switching device
JP2806732B2 (ja) * 1993-03-15 1998-09-30 日本電気株式会社 押釦スイッチ
DE4323083A1 (de) * 1993-07-10 1995-01-19 Vdo Schindling Multifunktionsschalter zur Betätigung einer ersten und zweiten elektrischen Einrichtung
CA2123539C (fr) * 1994-05-13 1998-08-04 Toshinori Date Dispositif a touches de commande
AU668034B2 (en) * 1994-05-17 1996-04-18 Sega Enterprises, Ltd. Control key device
DE69415964T2 (de) * 1994-05-18 1999-06-02 Sega Enterprises Kk Steuerungstasten-Vorrichtung
US5670759A (en) * 1995-07-14 1997-09-23 Acer Peripherals, Inc. Push button switch including complementary housing and actuator polygonal shapes
US5767463A (en) * 1996-10-08 1998-06-16 Dell Usa, L.P. Keyboard with tilted axis key design
WO1998029948A1 (fr) * 1996-12-30 1998-07-09 Himake International Pte Ltd. Commutateur et circuit de commutation
US6390699B1 (en) 1999-11-29 2002-05-21 Associate Technology Limited Keyboard with moveable base plate providing key travel
DE10005027A1 (de) * 2000-02-04 2001-08-09 Abb Patent Gmbh Bedienelement eines elektrischen/elektronischen Installationsgerätes
JP4410961B2 (ja) * 2001-05-11 2010-02-10 日本電気株式会社 キーボタン構造
EP1713108B1 (fr) * 2005-04-14 2011-02-09 Leopold Kostal GmbH & Co. KG Ensemble de touches pour dispositif électrique ou électronique dans une voiture
JP4721120B2 (ja) * 2006-12-29 2011-07-13 株式会社デンソーウェーブ スイッチ構造
DE102010033218A1 (de) * 2010-08-03 2012-02-09 Valeo Schalter Und Sensoren Gmbh Schaltmechanismus für einen Kippschalter, Kippschalter und Bedienfeld
DE102012005964A1 (de) * 2012-03-23 2013-09-26 Johnson Electric Germany GmbH & Co. KG Schalteranordnung für elektrische Ströme, umfassend zumindest zwei kurzzuschließende Kontakte

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1163425B (de) * 1960-06-09 1964-02-20 Berker Geb Elektrischer Druckknopftaster
US3676615A (en) * 1970-07-13 1972-07-11 Ibm Pushbutton keyboard switch array and associated printed circuit logic cards
US3886341A (en) * 1973-05-02 1975-05-27 Bowman Ali Inc Switch operating device for use with an over center diaphragm switch contact assembly with contact ramp camming surface
JPS5329226B2 (fr) * 1973-08-23 1978-08-19
US3860771A (en) * 1973-10-29 1975-01-14 Chomerics Inc Keyboard switch assembly with dome shaped actuator having associated underlying contactor means
AR204336A1 (es) * 1973-12-17 1975-12-22 Texas Instruments Inc Pieza de teclado
JPS5168726A (fr) * 1974-12-12 1976-06-14 Hosiden Electronics Co
US4096364A (en) * 1977-02-22 1978-06-20 Chomerics, Inc. Keyboard switch assembly having flexible contact layer with snap initiator dome
US4218599A (en) * 1977-11-30 1980-08-19 Steelcase Inc. Polymer spring
US4246452A (en) * 1979-01-05 1981-01-20 Mattel, Inc. Switch apparatus
US4255635A (en) * 1979-09-17 1981-03-10 Stackpole Components Company Keyswitch

Also Published As

Publication number Publication date
DE3208559A1 (de) 1983-09-22
US4493959A (en) 1985-01-15
JPS58169723A (ja) 1983-10-06
DE3208559C2 (de) 1985-12-05
EP0088365A1 (fr) 1983-09-14

Similar Documents

Publication Publication Date Title
EP0088365B1 (fr) Clavier
DE3329698C2 (fr)
DE2365083C3 (de) Von Hand zu betätigendes Drucktasten-Schaltelement innerhalb einer Tastenschal tmatrix
DE2644560C2 (de) Vorrichtung zum Ergreifen eines flachen, rechteckigen, elektrischen Bauelements
EP0131304B1 (fr) Interrupteur à curseur
EP0676784B1 (fr) Dispositif d'un interrupteur de sécurité
DE2630356A1 (de) Elektrischer schalter
DE202018104779U1 (de) Kombi-Maus
EP0241906B1 (fr) Clavier à membrane
DE3129210C2 (de) Elektrische Schaltvorrichtung
DE2705756C2 (de) Druckknopfschalter für elektronische Tischrechner o.dgl.
EP0863525B1 (fr) Appareil de commutation électrique
DE2937925C3 (de) Schalter
DE1812021A1 (de) Signalgeber mit piezo-elektrischen Elementen
DE2525467C3 (de) Kontaktanordnung
EP0602462B1 (fr) Appareillage électrique
DE2452944B2 (de) Tastenschaltersystem
DE4210869C2 (de) Handbetätigbarer Schwachstromschalter
DE2804794C2 (de) Elektrischer Schalter
DE539276C (de) Sicherheitseinrichtung fuer elektrische Fahrzeuge
DE1765712B1 (de) Elektrischer schnappschalter
DE2907894C2 (fr)
DE1965581C3 (de) Elektrischer Tastschalter
DE7628641U1 (de) Elektrische Schalteranordnung
DE2805597A1 (de) Drucktastenschalter

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB IT NL

17P Request for examination filed

Effective date: 19831004

ITF It: translation for a ep patent filed

Owner name: DR. ING. A. RACHELI & C.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB IT NL

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890228

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890302

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890331

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901001

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19901130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST