EP0401544B1 - Taste für eine Tastatur - Google Patents

Taste für eine Tastatur Download PDF

Info

Publication number
EP0401544B1
EP0401544B1 EP19900108967 EP90108967A EP0401544B1 EP 0401544 B1 EP0401544 B1 EP 0401544B1 EP 19900108967 EP19900108967 EP 19900108967 EP 90108967 A EP90108967 A EP 90108967A EP 0401544 B1 EP0401544 B1 EP 0401544B1
Authority
EP
European Patent Office
Prior art keywords
key
base
head
keyboard
key base
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
EP19900108967
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0401544A2 (de
EP0401544A3 (de
Inventor
Oskar Zumkeller
Paul Blaser
Hubert Ing. Grad. Bonath
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.)
Digital Kienzle Computersysteme GmbH and Co KG
Original Assignee
Digital Kienzle Computersysteme GmbH and Co KG
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 Digital Kienzle Computersysteme GmbH and Co KG filed Critical Digital Kienzle Computersysteme GmbH and Co KG
Publication of EP0401544A2 publication Critical patent/EP0401544A2/de
Publication of EP0401544A3 publication Critical patent/EP0401544A3/de
Application granted granted Critical
Publication of EP0401544B1 publication Critical patent/EP0401544B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • 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
    • H01H2221/00—Actuators
    • H01H2221/062—Damping vibrations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/024—Miscellaneous with inductive switch

Definitions

  • the invention relates to a key for a keyboard according to the preamble of claim 1 with a key base attachable to a printed circuit board of the keyboard, a key head resiliently guided in the key base and the stops limiting the key travel.
  • Keyboards in particular those which represent autonomous units, so to speak auxiliary components of data processing systems, are expected to be inexpensive, function without a doubt and with a high level of security, can be integrated into existing device configurations and are designed to be user-friendly.
  • a decisive factor in this connection is the level of the operating noise, which, which would be desirable, cannot be reduced by rationalization measures, but rather increases.
  • the reason for this is in particular the fact that the keys of such a keyboard open immediately are attached to a circuit board, which forms a resonance body in connection with the keyboard housing.
  • the keys are only formed in two parts, ie the bell-shaped key head, which strikes the key base when the key is depressed, has no damping effect, but rather represents a resonance body itself.
  • a key for an input keyboard is known, the shaft of which is slotted and has a radially molded nose on a resilient shaft section formed by the slitting.
  • the nose which is provided with surfaces beveled in the axial direction of the shaft, interacts with an annular stop surface formed on the key base.
  • the object of the present invention was to find an effective sound attenuation for keyboards of the type mentioned, which is easy to implement in terms of production technology.
  • the damping means are formed directly on one of the key elements (key head or key base) that are moved against one another when the key is pressed, and thus no additional components or assembly operations required are. It is also worth mentioning that the damping and stop means, with a corresponding structural design, perform an alignment function on the key head by intercepting the key head "over a large area” and offering a large stop surface and thus counteracting the wear of the guide means.
  • the keyboard 1 shown in FIG. 1, for example, is a so-called inductive keyboard, i. H.
  • the signals are generated inductively when the buttons are pressed.
  • the keyboard 1 consists of a trough-shaped bottom part 2 and a front frame 3, which longitudinal and transverse webs - one is designated by 4 - are assigned, by means of which various key fields, depending on use, for example, a function key field , a numeric and a letter keypad, can be delimited.
  • the base part 2 and the front frame 3 are connected to one another by a plurality of alignment and locking elements, of which a locking hook formed on the base part is designated by 5 in FIG.
  • the circuit board 6 is the carrier of the keys 9, the respective plate-shaped key base 10 being latched to the circuit board 6 by means of suitable latching hooks 11 formed on the key base 10.
  • the locking hooks 11 engage behind, as FIGURES 4 and 5 show, the printed circuit board 6.
  • a suitable anti-rotation device is provided.
  • a pin 12 (FIG. 4) formed on the key base 10 engages in an opening 13 in the printed circuit board 6.
  • FIGURE 2 shows a section of the circuit board 6, in which each key 9 is assigned three holes 13, 14 and 15. With 16 intersecting, on both sides of the circuit board 6 attached conductor tracks are designated, which together with the bore 14 form an induction coil.
  • a bore 17 formed in the key base 10 is, when the key base 10 is mounted on the printed circuit board 6, aligned with the bore 14 and serves for the passage of a ferrite core 19 fastened in the key head 18.
  • FIG. 3 also shows an opening 20, the geometric axis of which is also shown the axis of the pin 12 coincides.
  • the opening 20 serves as a guide for a finger 21 formed on the key head 18 and is provided together with the finger 21 as an anti-rotation device for the key head 18.
  • guide sleeve 22 With 22 a molded on the key base 10 guide sleeve is designated, 23 and 24 are 10 saved, resilient arms in the key base.
  • the recesses in the key base are labeled 25 and 26.
  • the guide sleeve 22 serves to guide the key head 18 by means of a shaft 27 integrally formed on the key head 18 and to hold a compression spring 28 which serves to reset the key head 18 after a key has been pressed.
  • the stop position of the key head 18 when the key 9 is not actuated becomes what is not shown. but is also not essential to the invention, of at least one nose formed on the shaft 27, which cooperates with a free countersink fitted in the guide sleeve 22, certainly.
  • the key head 18 is struck either by a collar 29 formed on the key head 18 interacting with the guide sleeve 22 or by the corner regions of the deep-drawn walls of the key head 18 - one wall being designated 30 - on corner regions 31, 32, 33 formed on the key base 10 and 34 hit.
  • the keystroke is distributed over a larger area, on the other hand, the ability of the key head 18 to vibrate is largely reduced.
  • the guidance of the key head 18 is relieved by aligning the key head 18 and canceling the play-related tilting moment, which in turn reduces wear.
  • the intended damping takes effect, i. H. the walls 30 of the key head 18 come into operative connection with the resilient arms 23 and 24 formed on the key base 10, during the deformation of which over a stroke s part of the actuation energy is consumed, before the final stop position is reached.
  • resilient arms for example rotationally symmetrical, can be formed on all four sides of the key base.
  • FIGURES 7 and 8 Another variant of the key base 10 is shown in FIGURES 7 and 8, with resilient arms 36, 37, 38 and 39 being formed in pairs on two sides of a key base 35 by injection molding.
  • the arms 36, 37, 38 and 39 are formed such that they each with their free, resilient end are directed against raised edge regions 40 and 41 of the key base 35.
  • a "large-area” interception of the key head 18 is achieved and it is avoided that the key head hits the end stop in a punctiform manner. This measure further reduces the noise when the keys are struck.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
EP19900108967 1989-06-03 1990-05-12 Taste für eine Tastatur Expired - Lifetime EP0401544B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893918229 DE3918229C1 (enrdf_load_stackoverflow) 1989-06-03 1989-06-03
DE3918229 1989-06-03

Publications (3)

Publication Number Publication Date
EP0401544A2 EP0401544A2 (de) 1990-12-12
EP0401544A3 EP0401544A3 (de) 1992-02-12
EP0401544B1 true EP0401544B1 (de) 1995-04-19

Family

ID=6382054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900108967 Expired - Lifetime EP0401544B1 (de) 1989-06-03 1990-05-12 Taste für eine Tastatur

Country Status (2)

Country Link
EP (1) EP0401544B1 (enrdf_load_stackoverflow)
DE (1) DE3918229C1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205650B1 (en) 1995-06-13 2001-03-27 Mec A/S Method of producing and electrical switch

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478991A3 (en) * 1990-10-01 1992-10-21 Siemens Aktiengesellschaft Holder for keys of a keyboard for electrical apparatus
DE19757907A1 (de) * 1997-12-24 1999-07-01 Marquardt Gmbh Elektrischer Schalter
DE10110646A1 (de) * 2001-03-06 2002-09-12 Valeo Schalter & Sensoren Gmbh Schalter, insbesondere Schalter für Kraftfahrzeuge
DE102012019718B4 (de) 2012-10-08 2015-03-05 Kehrel AG Multifunktions-Bedienvorrichtung zur Bedienung eines Kraftfahrzeugs
GB202319454D0 (en) * 2023-12-18 2024-01-31 Exefix Ltd Load distributing fixing device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729790A1 (de) * 1977-07-01 1979-01-18 Licentia Gmbh Schaltteil mit einem als daempfer wirkenden anschlag
DE8015685U1 (de) * 1980-06-13 1980-10-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Drucktaste
JPS6075929U (ja) * 1983-10-31 1985-05-28 株式会社ジエルコ 押しボタンスイツチ
DE8705193U1 (de) * 1987-04-07 1987-05-27 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Taste für eine Werteingabetastatur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205650B1 (en) 1995-06-13 2001-03-27 Mec A/S Method of producing and electrical switch

Also Published As

Publication number Publication date
EP0401544A2 (de) 1990-12-12
DE3918229C1 (enrdf_load_stackoverflow) 1990-07-26
EP0401544A3 (de) 1992-02-12

Similar Documents

Publication Publication Date Title
EP0295437B1 (de) Drucktasteneinrichtung
EP2979289B1 (de) Tastenstössel für ein tastenmodul einer taste für eine tastatur, tastenmodul einer taste für eine tastatur und verfahren zum herstellen eines tastenmoduls für eine taste für eine tastatur
DE102013006414A1 (de) Vorrichtung zur Bedienung mehrerer Funktionen in einem Kraftfahrzeug
DE69710147T2 (de) Betätigungsgriff zum Öffnen eines Schlosses einer Kraftfahrzeugöffnung
DE102017106406A1 (de) Tastenmodul
EP0401544B1 (de) Taste für eine Tastatur
DE19634051C1 (de) Schalteranordnung mit mindestens einer Drucktaste
DE102014111932A1 (de) Eingabevorrichtung
DE3112328A1 (de) Druckschalter mit einer kappenfoermigen drucktaste
EP0344625B1 (de) Elektrischer Tastschalter
DE4022917C2 (enrdf_load_stackoverflow)
DE19940386C2 (de) Drucktaste
EP0178452A2 (de) Drucktaste
EP0285928B1 (de) Taste für eine Werteingabetastatur
DE102013223843A1 (de) Tastenknopf, Tastenschalter, Tastenrahmen und Leiterplatte für eine Dateneingabevorrichtung, Dateneingabevorrichtung und Verfahren zur Reduzierung eines Schaltweges eines Tastenschalters einer Dateneingabevorrichtung
DE10309516B3 (de) Tastenblock mit Federgeometrie
EP1715497B1 (de) Bedienvorrichtung mit einer Schaltmatte
EP0944104A1 (de) Grosse, mehrere kleine Tastenfelder abdeckende Drucktaste für ein Keyboard
EP1482527B1 (de) Tastenblock
EP0478991A2 (de) Halterung für Tasten einer Tastatur von elektrischen Geräten
DE9010425U1 (de) Einrichtung zum Übertragen einer Linearbewegung mit Hilfe eines Tastelements
DE102020120623B3 (de) Fahrzeugfach mit verriegelbarer beweglicher abdeckung
EP2487699B1 (de) Kurzhubtaster
DE3021857C2 (de) Drucktaste
DE7901037U1 (de) Frontplatte mit wenigstens einem an einen Tastenkörper angepaßten Durchbruch und einem in dem Durchbruch geführten Tastenkörper

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

Kind code of ref document: A2

Designated state(s): CH FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19920728

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DIGITAL-KIENZLE COMPUTERSYSTEME GMBH & CO. KG

17Q First examination report despatched

Effective date: 19940317

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH FR GB IT LI NL SE

ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950510

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19950517

Year of fee payment: 6

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

Ref country code: SE

Payment date: 19950522

Year of fee payment: 6

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950420

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

Ref country code: NL

Payment date: 19950531

Year of fee payment: 6

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950623

Year of fee payment: 6

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

Ref country code: GB

Effective date: 19960512

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

Ref country code: SE

Effective date: 19960513

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

Ref country code: LI

Effective date: 19960531

Ref country code: CH

Effective date: 19960531

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

Ref country code: NL

Effective date: 19961201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960512

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Effective date: 19970131

EUG Se: european patent has lapsed

Ref document number: 90108967.2

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19961201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050512