EP0301385B1 - Touche séparée - Google Patents

Touche séparée Download PDF

Info

Publication number
EP0301385B1
EP0301385B1 EP88111622A EP88111622A EP0301385B1 EP 0301385 B1 EP0301385 B1 EP 0301385B1 EP 88111622 A EP88111622 A EP 88111622A EP 88111622 A EP88111622 A EP 88111622A EP 0301385 B1 EP0301385 B1 EP 0301385B1
Authority
EP
European Patent Office
Prior art keywords
plunger
shaft
axial
guide
diametrically opposite
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
EP88111622A
Other languages
German (de)
English (en)
Other versions
EP0301385A3 (en
EP0301385A2 (fr
Inventor
Bernhard Dipl.-Ing. Gut (Fh)
Dieter Dipl.-Ing. Dubois (Fh)
Franz Dipl.-Ing. Wandinger (Fh)
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf International 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 Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf International GmbH
Priority to AT88111622T priority Critical patent/ATE98397T1/de
Publication of EP0301385A2 publication Critical patent/EP0301385A2/fr
Publication of EP0301385A3 publication Critical patent/EP0301385A3/de
Application granted granted Critical
Publication of EP0301385B1 publication Critical patent/EP0301385B1/fr
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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/07—Cap or button on actuator part
    • H01H2233/074—Snap coupling

Definitions

  • the invention relates to a single key according to the preamble of claim 1.
  • Such a single key is known from EP-0 01 22 128.
  • the key cap shown there has a cylindrical plunger on which two axial guide webs are formed, each of which has a radially projecting hook attachment at the end of the plunger.
  • a shaft-like guide opening which receives the plunger is provided in a housing and has corresponding longitudinal grooves for fixing the guide webs and their hook attachments.
  • the tappet itself is longitudinally divided by a gap, a guide web being assigned to each tappet part. With the help of the gap, which allows a resilient compression of the two plunger parts, the hook attachments perform the function of snap hooks that get caught on ramp bodies located in the longitudinal grooves and prevent the key cap from falling out of the housing.
  • the inner wall of the guide opening must also be used for the plunger guide, since the hook attachments only allow the guide webs to be guided laterally in the longitudinal grooves and the key cap could therefore easily tip over to the end face of a guide web. Due to the friction surfaces thus present, disturbing frictional forces can occur when such a key is pressed.
  • the object of the present invention is to develop a key of the type mentioned in the introduction in such a way that good and smooth key cap guidance is achieved.
  • the key cap is held in each horizontal direction only on the guide webs, which are each positively adapted to the cross-section of the longitudinal grooves and which, since they have no hook attachments, can also be guided on their end faces by the longitudinal grooves.
  • the areas involved in the key cap guide can be kept small, which is why only small friction forces have to be overcome when the key is pressed. In addition, these frictional forces increase only insignificantly when the key is actuated off-center, and jamming of the key by tilting the key cap cannot occur.
  • the plunger as a hollow cylinder, a very light key cap can be realized, which allows quick actuation with low restoring forces in the spring element.
  • the overall weight of a keyboard can also be kept low.
  • the design of the plunger as a hollow cylinder also saves material and enables uncomplicated manufacture of the keycap from plastic, since so-called sink marks, which occur when the adjacent material cools at different speeds, can be prevented in particular with the same wall thicknesses throughout.
  • the key cap is held securely in the housing, but it can also be exchanged with little effort.
  • the wall thickness of the plunger By changing the wall thickness of the plunger, the width of the wall tongues and in particular the length of the wall incisions, this effort can be easily adapted to the respective requirements.
  • the guide webs and the wall tongues form an angle of approximately 45 °.
  • the shaft-like guide opening has four axial longitudinal grooves which are diametrically opposed in pairs and whose diametrical planes are at right angles to one another.
  • Such an embodiment is suitable for being able to turn a keycap horizontally through 90 °, and in particular to insert a labeled keycap into a housing which is installed rotated through 90 °.
  • FIG. 1 shows a key cap TK made of a dimensionally stable plastic, which is composed of a cover part DT and a plunger S.
  • the cover part DT usually consists of a square key hood BP, on which a truncated cone-like key head KO is placed on one side, the top surface DF of which is designed as a recessed grip.
  • the plunger S protruding in the direction perpendicular to the key hood BP is attached.
  • the plunger S is designed as a straight hollow cylinder with a circular cross section.
  • two axial guide webs FST are formed diametrically opposite, each of which has a rectangular profile.
  • the guide webs FST are arranged on the plunger S in such a way that an imaginary diametrical plane running through the two guide webs FST runs at right angles to two opposite side edges of the key hood BP.
  • the plunger S has two diametrically opposite, each of two axial wall incisions at the open plunger end SE WE exposed wall tabs WZ.
  • a radially outwardly protruding snap hook HK is attached to the free end of the wall tongues WZ and forms the wall tongues WZ as snap arms SA. Compared to the length of the plunger S, the wall tongues WZ are shorter.
  • An imaginary diametrical plane running through the two snap arms SA is at an angle of 45 ° to the plane running through the guide webs FST.
  • a housing G shown in FIG. 2 is used to fix the key cap TK, with a shaft-like cylindrical guide opening ZF which is directed towards a spring element FE inside the housing G.
  • the guide opening ZF is provided with four axial longitudinal grooves LN (only two of which are shown), which are diametrically opposed in pairs and whose diametrical planes are at right angles to one another.
  • the plunger S of the key cap TK is inserted into the guide opening ZF during assembly of the key, the longitudinal grooves LN being provided for receiving the guide webs FST and the retaining grooves HN for receiving the snap hooks HK located on the snap arms SA.
  • the snap hooks HK of the snap arms SA which spring back to the middle of the tappet, can slide over the ramp bodies RK easily. With further impressions the TK key cap touches the spring element FE with the plunger end SE and causes it to collapse or collapse. If the key cap TK is released, it is brought into the rest position by the spring element FE. Falling out of the key cap TK from the housing G is prevented by the snap hooks HK on the snap arms SA, which are retained by the ramp bodies RK in the holding grooves HN.

Landscapes

  • Push-Button Switches (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Saccharide Compounds (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (5)

  1. Touche individuelle comportant un boîtier (G), ayant une ouverture de guidage (ZF) qui est en forme de puits qui est munie, sur sa face intérieure, de rainures longitudinales (LN) et de rampes (RK) et dans laquelle est mobile axialement un poussoir (S) cylindrique d'un capuchon (TK) de la touche, dont une extrémité (SE) agit sur un élément élastique (FE) et qui est muni de barrettes de guidage (FST) et de crochets d'encliquetage (HK),
    caractérisée par le fait
    que le poussoir (S) est agencé sous la forme d'un cylindre creux rectiligne, de section transversale circulaire,
    que sur sa face extérieure sont prévues deux barrettes axiales de guidage (FST), qui sont diamétralement opposées et qui sont associées aux rainures longitudinales (LN) ménagées dans la face intérieure de l'ouverture de guidage (ZF) en forme de puits,
    que le poussoir (S) possède, à l'extrémité (SE), deux languettes de paroi (WZ) diamétralement opposées, qui sont dégagées respectivement par deux encoches axiales de paroi (WE), et
    que les languettes de paroi (WZ) sont munies, à leurs extrémités libres, de crochets d'encliquetage respectifs (HK), qui font saillie radialement vers l'extérieur et à chacun desquels est associée, dans la face intérieure de l'ouverture de guidage (ZF) en forme de puits, une rainure axiale de retenue (HZ), munie de l'une rampes (RK).
  2. Touche individuelle suivant la revendication 1, caractérisée par le fait que les plans diamétraux respectifs des barrettes de guidage (SFT) et des languettes de paroi (WZ) font entre eux un angle de 45°.
  3. Touche individuelle suivant l'une des revendications précédentes, caractérisée par le fait que l'ouverture de guidage (ZF) en forme de puits comporte quatre languettes longitudinales (LE) axiales, qui sont diamétralement opposées par couple et dont les plans diamétraux font entre eux un angle droit.
  4. Touche individuelle suivant l'une des revendications précédentes, caractérisée par le fait que l'ouverture de guidage (ZF) en forme de puits comporte quatre rainures de retenue (LN) axiales, qui sont munies de rampes (RK), qui sont diamétralement opposées par couple et dont les plans diamétraux font entre eux un angle droit.
  5. Touche individuelle suivant l'une des revendications précédentes, caractérisée par le fait que les languettes de paroi (WZ) ont une longueur inférieure à celle du poussoir (S).
EP88111622A 1987-07-30 1988-07-19 Touche séparée Expired - Lifetime EP0301385B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111622T ATE98397T1 (de) 1987-07-30 1988-07-19 Einzeltaste.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3725305 1987-07-30
DE3725305 1987-07-30

Publications (3)

Publication Number Publication Date
EP0301385A2 EP0301385A2 (fr) 1989-02-01
EP0301385A3 EP0301385A3 (en) 1990-07-04
EP0301385B1 true EP0301385B1 (fr) 1993-12-08

Family

ID=6332734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111622A Expired - Lifetime EP0301385B1 (fr) 1987-07-30 1988-07-19 Touche séparée

Country Status (4)

Country Link
EP (1) EP0301385B1 (fr)
AT (1) ATE98397T1 (fr)
DE (1) DE3886119D1 (fr)
ES (1) ES2046248T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8929007D0 (en) * 1989-12-22 1990-02-28 Starpoint Electrics Ltd Push button switch mounting
DE19940386C2 (de) * 1999-08-25 2002-08-14 Fujitsu Siemens Computers Gmbh Drucktaste
DE102006012649B4 (de) * 2006-03-20 2008-10-16 Cherry Gmbh Drucktaste mit verbesserter Tastenknopfführung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479040A (en) * 1983-03-07 1984-10-23 Oak Industries Inc. Tactile feel switch with positive switch actuation
JPS60221913A (ja) * 1984-04-19 1985-11-06 オムロン株式会社 キ−スイツチ用コイルスプリング
JPS60221914A (ja) * 1984-04-19 1985-11-06 オムロン株式会社 キ−スイツチ用コイルスプリング
DE3602752A1 (de) * 1986-01-30 1987-08-06 Standard Elektrik Lorenz Ag Tastenschalter
JP2841146B2 (ja) * 1992-10-19 1998-12-24 株式会社巴コーポレーション 構造部材の継手部構造

Also Published As

Publication number Publication date
DE3886119D1 (de) 1994-01-20
ATE98397T1 (de) 1993-12-15
ES2046248T3 (es) 1994-02-01
EP0301385A3 (en) 1990-07-04
EP0301385A2 (fr) 1989-02-01

Similar Documents

Publication Publication Date Title
DE4036980C2 (de) Kulissenmechanismus für ein Objektiv
DE3430737C2 (de) Stativ für eine Kamera oder für ein anderes optisches Gerät
DE4006280A1 (de) Kettenspanner
DE2719325A1 (de) Sicherheitsgurt-verschluss
DE2611558A1 (de) Kupplungsdrucklager
DE2933656A1 (de) Kompaktes sicherheitsmesser
DE3507151A1 (de) Kupplungsglied fuer eine schnell-verbindungs- und trennkupplung
DE2063831A1 (de) Spulenverschluß und Speichergerat
DE3809966A1 (de) Vorrichtung zur verriegelung des abgehobenen wischerarms eines scheibenwischers
EP0301385B1 (fr) Touche séparée
DE3807028C1 (en) Telescopic tube connection
EP0754827A2 (fr) Dispositif pour la fixation amovible et axialement non coulissante d'une poignée sur un élément de palier, notamment pour une poignée de porte ou fenêtre
DE69823897T2 (de) Vorrichtung zum Verbinden das Endstück einen Bowdenzug auf einem Kugelgelenk, und Anwendung zu der Schaltvorrichtung für ein Zahnräderwechselgetriebe
DE2227625A1 (de) Heftvorrichtung fuer schnellhefter
DE4301499C2 (de) Schieber für eine Wandstange
DE2814995A1 (de) Laengenjustierbare verbindung fuer verstellgestaenge
DE3603876C2 (fr)
DE10012322C2 (de) Schnelle Bajonett-Befestigung zum Verbinden von zwei Lenkorganen eines Kraftfahrzeugs
DE3248053A1 (de) Loesbare, auf unterschiedliche tuerdicken einstellbare dornbefestigung fuer tuerhandhaben
DE2641340C3 (de) Drehverbindung als Teil eines Türklinken-Betätigungsmechanismus und einer hierin drehbar angeordneten Metallstange
DE60212129T2 (de) Befestigungsmittel mit Bajonettsicherung
DE19735273C2 (de) Haltevorrichtung für Handbrausen
DE3116331C2 (de) Aufhängevorrichtung für Vorhänge oder dgl.
DE7924574U1 (de) Auftragduese mit ventil
DE2219576A1 (de) Filmspule

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): AT BE CH DE ES 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): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19901009

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

Owner name: SIEMENS NIXDORF INFORMATIONSSYSTEME AG

17Q First examination report despatched

Effective date: 19930224

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS NIXDORF INFORMATIONSSYSTEME AG

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 98397

Country of ref document: AT

Date of ref document: 19931215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3886119

Country of ref document: DE

Date of ref document: 19940120

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2046248

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

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

Effective date: 19940211

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

Ref country code: GB

Payment date: 19940616

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19940622

Year of fee payment: 7

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

Ref country code: ES

Payment date: 19940711

Year of fee payment: 7

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

Ref country code: BE

Payment date: 19940714

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: 19940725

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19940731

Year of fee payment: 7

Ref country code: NL

Payment date: 19940731

Year of fee payment: 7

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

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

Ref country code: CH

Payment date: 19941017

Year of fee payment: 7

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 88111622.2

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

Ref country code: GB

Effective date: 19950719

Ref country code: AT

Effective date: 19950719

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

Ref country code: SE

Effective date: 19950720

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19950720

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

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

Ref country code: BE

Effective date: 19950731

BERE Be: lapsed

Owner name: SIEMENS NIXDORF INFORMATIONSSYSTEME A.G.

Effective date: 19950731

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

Ref country code: NL

Effective date: 19960201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 19950719

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

Effective date: 19960201

EUG Se: european patent has lapsed

Ref document number: 88111622.2

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

Ref country code: FR

Effective date: 19960430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007

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: 20050719

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

Ref country code: DE

Payment date: 20070831

Year of fee payment: 20