NO780041L - KEYBOARD FOR ENTERING DATA IN AN ELECTRICAL APPLIANCE - Google Patents

KEYBOARD FOR ENTERING DATA IN AN ELECTRICAL APPLIANCE

Info

Publication number
NO780041L
NO780041L NO780041A NO780041A NO780041L NO 780041 L NO780041 L NO 780041L NO 780041 A NO780041 A NO 780041A NO 780041 A NO780041 A NO 780041A NO 780041 L NO780041 L NO 780041L
Authority
NO
Norway
Prior art keywords
keyboard
contact
contact element
specified
domed
Prior art date
Application number
NO780041A
Other languages
Norwegian (no)
Inventor
Rene Clematide
Original Assignee
Europ Handelsges Anst
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 Europ Handelsges Anst filed Critical Europ Handelsges Anst
Publication of NO780041L publication Critical patent/NO780041L/en

Links

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
    • H01H13/785—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 material of the contacts, e.g. conductive polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/10—Arrangements of keyboards, e.g. key button disposition
    • B41J5/105—Constructional details of keyboard frames, e.g. adjusting or fixation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/12—Construction of key 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
    • 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
    • H01H2201/00—Contacts
    • H01H2201/016—Roughened contact surface, e.g. anti-adhering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/054—Form of contacts to solve particular problems for redundancy, e.g. several contact pairs in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/032—Several contacts formed in one plate or layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/032—Several contacts formed in one plate or layer
    • H01H2205/036—Helicoidal cuts
    • 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
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/018—Indication of switch sites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H01H2223/036—Bezel forming chamfered apertures for keys

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

Tastatur for inngivelse av data i et elektrisk apparat.Keyboard for entering data into an electrical appliance.

Description

Foreliggende oppfinnelse vedrorer et tastatur for inngivelseThe present invention relates to a keyboard for input

av data i et elektrisk apparat med flere taster, som hver omfatter et hvelvet, elastisk deformerbart kontaktelement og en motkontakt, med hvilken kontaktelementet kan bringes i bero-rihg ved deformasjon ved tastens betjening. of data in an electrical device with several keys, each of which comprises a domed, elastically deformable contact element and a counter contact, with which the contact element can be brought into contact by deformation when the key is operated.

Det er kjent tastaturer av denne type, hvor hvert kontaktelement er en hvelvet metallskive. Hver metallskive boyer seg ned når det trykkes på tasten og kommer derved i beroring med den faste motkontakt. Når tasten slippes, vil metallskiven på Keyboards of this type are known, where each contact element is a domed metal disc. Each metal disc bends down when the key is pressed and thereby comes into contact with the fixed counter contact. When the key is released, the metal disc will turn on

grunn av sine tilbakefjæringsegenskaper vende tilbake til sin hvelvede hvilestilling. Hver metallskive er enkeltvis lagret slik at den riktignok er fastholdt i sin stilling, men kan vi-ke til siden når den deformeres ved nedtrykking av tasten. Monteringen av en slik mengde av enkelte metallskiver og der-med produksjonen av et slikt tastatur er imidlertid krevende. due to its spring-back properties return to its vaulted resting position. Each metal disk is individually stored so that it is indeed fixed in its position, but can bend to the side when it is deformed by pressing the key. However, the assembly of such a quantity of individual metal discs and with it the production of such a keyboard is demanding.

Foreliggende oppfinnelse går ut på å tilveiebringe et tastatur av innledningsvis nevnte type, som dog ikke har de nevnte ulem-per. The present invention aims to provide a keyboard of the type mentioned at the outset, which does not, however, have the aforementioned disadvantages.

Dette formål oppnås ifolge oppfinnelsen ved at hvert kontaktelement dannes av en hvelving utformet i et plateformet element og er forsynt med spiralformet forlopende innsnitt. This purpose is achieved according to the invention in that each contact element is formed by a vault formed in a plate-like element and is provided with a spirally extending incision.

I det folgende skal et utforelseseksempel av oppfinnelsens gjenstand beskrives nærmere under henvisning til tegningen, hvor In the following, an exemplary embodiment of the object of the invention will be described in more detail with reference to the drawing, where

fig. 1 viser komponentene i et tastatur i en utspilt gjengivel-se, fig. 1 shows the components of a keyboard in an exploded view,

fig. 2 viser det monterte tastaturet i oppriss,fig. 2 shows the mounted keyboard in elevation,

fig. 3 er et snitt etter linjen III-III i fig. 2 ogfig. 3 is a section along the line III-III in fig. 2 and

fig. 4 er et snitt gjennom kohtaktplaten med kontaktelementene etter linjen IV-IV i fig. 1. fig. 4 is a section through the contact plate with the contact elements along the line IV-IV in fig. 1.

Tastaturet som er vist i tegningen omfatter en bæreplate 1 for en trykt kobling, på hvilken det foreligger ledninger 2, som leder fra stasjonære moirkontakter 3 til. tilknytningspunkter 4 for ikke viste koblingstråder. De sirkulære motkontaktene 3 består av elektrisk ledende gummi og er elektrisk forbundet med kontaktflater la på bæreplaten 1. På oppsiden er motkontaktene 3 riflet (fig. 3). På bæreplaten 1 ligger en holdeplate 5 av The keyboard shown in the drawing comprises a carrier plate 1 for a printed connection, on which there are wires 2, which lead from stationary moiré contacts 3 to. connection points 4 for connecting wires not shown. The circular counter contacts 3 consist of electrically conductive rubber and are electrically connected with contact surfaces la on the carrier plate 1. On the upper side, the counter contacts 3 are grooved (fig. 3). A retaining plate 5 is located on the carrier plate 1

isolasjonsmateriale, som er forsynt med sirkulære åpninger 6.insulating material, which is provided with circular openings 6.

I disse åpninger griper motkontaktene 3 inn, når holdeplaten 5 som vist i fig. 3, er i anlegg mot bæreplaten 1. In these openings, the counter contacts 3 engage, when the holding plate 5 as shown in fig. 3, is in contact with the support plate 1.

Over holdeplaten 5 er det anordnet en metallisk kontaktplate 7. Kontaktplaten 7 har flere hvelvinger 8 i form av kulekalotter, som hver danner et elastisk deformerbart kontaktelement. Antal- ' let og anordningen av hvelvingene 8 svarer til antallet og anordningen av motkontakter 3. Ved montert tastatur vil hver hvelving 8 således ligge over en motkontakt 3 (fig. 3). Kontaktplaten 7 er i enlegg mot dekkflaten 5a av holdeplaten 5. Denne dekkflate 5a ligger hoyere enn motkontaktenes 3 overside, slik at det er avstand mellom kontaktplaten 7 og motkontaktene 3. Kontaktplaten 7 er på ikke nærmere vist måte i elektrisk for-bindelse med et koblingspunkt 4 på bæreplaten 1. A metallic contact plate 7 is arranged above the holding plate 5. The contact plate 7 has several domes 8 in the form of spherical caps, each of which forms an elastically deformable contact element. The number and arrangement of the domes 8 corresponds to the number and arrangement of counter contacts 3. When a keyboard is fitted, each dome 8 will thus lie above a counter contact 3 (fig. 3). The contact plate 7 is flush with the cover surface 5a of the holding plate 5. This cover surface 5a is higher than the upper side of the counter contacts 3, so that there is a distance between the contact plate 7 and the counter contacts 3. The contact plate 7 is in an electrical connection with a connection point in a manner not shown 4 on carrier plate 1.

Hvert kalottformede, hvelvede kontaktelement 8 er forsynt med spiralformet forlopende innsnitt 9, som forloper fra midten av hvert kontaktelement 8 mot elementets sirkulære omkrets 8a. Each dome-shaped, vaulted contact element 8 is provided with a spirally extending incision 9, which extends from the center of each contact element 8 towards the circular circumference 8a of the element.

Over kontaktplaten 7 ligger et deksel 10 av elastisk materiale, f.eks. gummi. Dette deksel 10 er på oversiden forsynt med på-formede, fremspringende tastknapper 11. På undersiden av dekslet 10 er det utformet knaster 12, som er i anlegg mot kontaktelementene 8 (fig. 3). Knastene 12 kan også utformes på annen måte, f.eks. ved påklebede knastformede elementer. Dekslet 10 har en nedadragende kant 10a, som ved montert tastatur griper over bæreplaten 1, holdeplaten 5 og kontaktplaten 7 på sidene, som vist i fig. 3. På denne måte beskyttes tastaturet mot inn-trengning av stov og smusspartikler. Above the contact plate 7 is a cover 10 of elastic material, e.g. rubber. This cover 10 is provided on the upper side with shaped, projecting buttons 11. On the underside of the cover 10 there is a designed knob 12, which abuts the contact elements 8 (fig. 3). The knobs 12 can also be designed in another way, e.g. in the case of glued-on knob-shaped elements. The cover 10 has a downward-extending edge 10a, which, when the keyboard is mounted, grips over the support plate 1, the holding plate 5 and the contact plate 7 on the sides, as shown in fig. 3. In this way, the keyboard is protected against the penetration of dust and dirt particles.

De monterte komponenter 1,5,7 og 10 anordnes i et hus 13, som er åpent nedad og som på oversiden har åpninger 14, gjennom hvilke tastknappene 11 rager frem. Huset 13 kan f.eks. med skruer festes på et elektrisk eller elektronisk apparat, f.eks. en regnemaskin eller et siffreringsapparat. The assembled components 1,5,7 and 10 are arranged in a housing 13, which is open downwards and which on the upper side has openings 14, through which the pushbuttons 11 protrude. The house 13 can e.g. with screws attach to an electrical or electronic device, e.g. a calculator or a numbering device.

Når en tast betjenes ved at en trykknapp 11 trykkes inn, vil det hvelvede kontaktelement 8, som befinner seg under den inn-trykte knapp 11,.deformeres elastisk, dvs. boyes ned. Derved When a key is operated by pressing a push button 11, the domed contact element 8, which is located below the pressed button 11, will be elastically deformed, i.e. bent down. Thereby

kommer det i beroring med tilordnede motkontakt 3, slik at det på kjent måte utloses en elektrisk puls. Når trykknappen 11 it comes into contact with the assigned counter contact 3, so that an electrical pulse is triggered in a known manner. When push button 11

slippes, vil kontaktelementet 8 på grunn av sine fjærelastiske egenskaper vende tilbake til sin hvelvede hvilestilling. is released, the contact element 8 will, due to its spring-elastic properties, return to its domed resting position.

Ved nedpressing av de hvelvede kontaktelementer vil de spiral-formede innsnitt 9 bevirke at hvelvingens materialpartier som adskilles av nevnte innsnitt 9 utforer en skrueformet bevegel-se til kontaktplatens 7 plan. På denne måte skjer ingen unnvi-kelse til siden av hvelvingens materiale. Hvelvingens partier bringes således i kontaktplatens 7 plan ved deformasjon av kontaktelementene 8, uten at kontaktelementets 8 grunnflate be-stemt av sirkelen 8a må forstorres. When the domed contact elements are pressed down, the spiral-shaped incisions 9 will cause the material parts of the domed wing which are separated by said incisions 9 to perform a helical movement to the plane of the contact plate 7. In this way, there is no deviation to the side of the material of the vault wing. The parts of the dome wing are thus brought into the plane of the contact plate 7 by deformation of the contact elements 8, without the base surface of the contact element 8 determined by the circle 8a having to be enlarged.

, Bruken av motelektroder 3 av elektrisk ledende gummi har den fordel at det som folge av elastisiteten og rifflingen av motkontakt over f laten oppnås flere berøringspunkter méd det ned-boyde, metalliske kontaktelement 8, slik at en upåklagelig elektrisk kontakt er sikret. , The use of counter electrodes 3 made of electrically conductive rubber has the advantage that, as a result of the elasticity and riffling of the counter contact over the surface, several contact points are achieved with the bent-down, metallic contact element 8, so that an impeccable electrical contact is ensured.

Claims (7)

1. Tastatur for inngivelse av data i. et elektrisk apparat med flere taster, som hver omfatter et hvelvet, elastisk deformerbart kontaktelement og en motkontakt, med hvilken kontaktelementet kan bringes i kontakt ved deformasjon ved betjening av tasten, karakterisert ved at hvert kontaktelement (8) er dannet av en hvelving utformet i et plateformet element (7) og er forsynt med spiralformet forlopende innsnitt (9).1. Keyboard for entering data in. an electrical device with several keys, each of which comprises a domed, elastically deformable contact element and a counter contact, with which the contact element can be brought into contact by deformation when operating the key, characterized in that each contact element (8 ) is formed by a vault formed in a plate-like element (7) and is provided with a spirally extending incision (9). 2. Tastatur som angitt i krav 1, karakterisert ved at hvert kontaktelement (8) er kulekalottformet og at innsnittene (9) strekker seg fra sentrum mot hvelvingens periferi.2. Keyboard as stated in claim 1, characterized in that each contact element (8) is spherical and that the incisions (9) extend from the center towards the periphery of the dome wing. 3. Tastatur som angitt i krav 1, karakterisert ved at motkontaktene (3) er stasjonært fastholdt og består av elektrisk ledende gummi.3. Keyboard as specified in claim 1, characterized in that the counter contacts (3) are stationary and consist of electrically conductive rubber. 4. Tastatur som angitt i krav 1, karakterisert ved at motkontaktene (3) er anordnet på bæreplaten (1) for en trykt kobling.4. Keyboard as specified in claim 1, characterized in that the counter contacts (3) are arranged on the carrier plate (1) for a printed connection. 5. Tastatur som angitt i et av kravene 1-4, karakterisert ved at elementet (7) som er forsynt med de hvelvede kontaktelementer (8) er dekket av et deksel (10) av et elastisk materiale, som bærer tastknapper (11) på oversiden, som ved inntrykking bevirker en deformasjon av det nedenforlig-gende, hvelvede kontaktelement (8).5. Keyboard as specified in one of claims 1-4, characterized in that the element (7) which is provided with the domed contact elements (8) is covered by a cover (10) of an elastic material, which carries key buttons (11) on upper side, which, when impressed, causes a deformation of the underlying, vaulted contact element (8). 6. Tastatur som angitt i krav 5, karakt 'e ri sert ved at det overfor tastknappene (11), på undersiden av dekslet (10) foreligger knastformede elementer (12), som hver er i anlegg mot et hvelvet kontaktelement (8).6. Keyboard as specified in claim 5, characterized in that opposite the key buttons (11), on the underside of the cover (10), there are knob-shaped elements (12), each of which abuts a domed contact element (8). 7. Tastatur som angitt i krav 5, karakterisert ved at dekslet (10) har et rundtlopende kantparti (10a), som omslutter de over hverandre liggende komponentene (1,7) på sidene.7. Keyboard as stated in claim 5, characterized in that the cover (10) has a circumferential edge portion (10a), which encloses the overlapping components (1,7) on the sides.
NO780041A 1977-02-04 1978-01-05 KEYBOARD FOR ENTERING DATA IN AN ELECTRICAL APPLIANCE NO780041L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH140977A CH607854A5 (en) 1977-02-04 1977-02-04 Keyboard for inputting data into an electric device

Publications (1)

Publication Number Publication Date
NO780041L true NO780041L (en) 1978-08-07

Family

ID=4209768

Family Applications (1)

Application Number Title Priority Date Filing Date
NO780041A NO780041L (en) 1977-02-04 1978-01-05 KEYBOARD FOR ENTERING DATA IN AN ELECTRICAL APPLIANCE

Country Status (9)

Country Link
JP (1) JPS53111484A (en)
BE (1) BE863646A (en)
CH (1) CH607854A5 (en)
DE (1) DE2801550A1 (en)
DK (1) DK5478A (en)
FR (1) FR2379379A1 (en)
IT (1) IT1092351B (en)
NO (1) NO780041L (en)
SE (1) SE7800155L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1155482B (en) * 1982-04-02 1987-01-28 Olivetti & Co Spa CONTACT KEYBOARD AND METHOD FOR THE MANUFACTURE OF THE SAME
DE3403034A1 (en) * 1984-01-28 1985-08-01 Schoeller & Co Elektrotechnische Fabrik Gmbh & Co, 6000 Frankfurt KEY SWITCH
AT389398B (en) * 1984-06-20 1989-11-27 Sterner Franz CONTACT MAT
JPH05290669A (en) * 1992-01-22 1993-11-05 Fujikura Ltd Lighting switch
BR112013012001A2 (en) * 2010-11-17 2019-09-24 Koninl Philips Electronics Nv "set for use on a keyboard device, keyboard device and method to manufacture a set for use on a keyboard device"

Also Published As

Publication number Publication date
SE7800155L (en) 1978-08-05
DK5478A (en) 1978-08-05
IT1092351B (en) 1985-07-12
CH607854A5 (en) 1978-11-30
IT7819668A0 (en) 1978-01-26
BE863646A (en) 1978-05-29
FR2379379A1 (en) 1978-09-01
JPS53111484A (en) 1978-09-29
DE2801550A1 (en) 1978-08-10

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