EP0490023A1 - Dispositif de bouton-poussoirs - Google Patents

Dispositif de bouton-poussoirs Download PDF

Info

Publication number
EP0490023A1
EP0490023A1 EP91109346A EP91109346A EP0490023A1 EP 0490023 A1 EP0490023 A1 EP 0490023A1 EP 91109346 A EP91109346 A EP 91109346A EP 91109346 A EP91109346 A EP 91109346A EP 0490023 A1 EP0490023 A1 EP 0490023A1
Authority
EP
European Patent Office
Prior art keywords
guide bracket
guide
button
head
clamping
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.)
Granted
Application number
EP91109346A
Other languages
German (de)
English (en)
Other versions
EP0490023B1 (fr
Inventor
Hartmut Kamin
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
Publication of EP0490023A1 publication Critical patent/EP0490023A1/fr
Application granted granted Critical
Publication of EP0490023B1 publication Critical patent/EP0490023B1/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
    • 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
    • H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
    • H01H3/125—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser

Definitions

  • the invention relates to a pushbutton device for actuating a switching contact of a switching device with a button head, which can be depressed from a rest position into a switching position and can be connected to the switching device via guide brackets, the guide bracket with legs in scissor-shaped intersection on the button head and on the switching device to the actuating direction vertical axes are pivotable and are pivotally mounted on the switching device perpendicular to the actuation direction and to the axis direction.
  • a pushbutton device of the type mentioned above is known for example from German Patent 37 19 839.
  • the crossing legs of the guide bracket are connected to each other by a fixed joint, so that the guide bracket together form a pair of scissors.
  • the ends of the legs of the guide bracket are rotatably and horizontally displaceably mounted in slots both in the button head and on the switching device. This device is intended to ensure that the key head always moves parallel to itself and thus cannot tilt even if it is not pressed down in the middle. This is especially necessary for larger keys on a keyboard.
  • the guide bracket is mounted in such a way that one of the legs of a bracket has a hinge pin and the other leg has a bore for receiving such a hinge pin. If the two guide brackets forming a pair of scissors are plugged together, the pin of one bracket engages in the articulated bore of the other bracket. In this position, the pins are secured by securing elements such as snap rings or the like. This process makes the assembly of the guide brackets more cumbersome, time-consuming and expensive, since in addition to the guide brackets, an additional part is required for each joint.
  • the invention has for its object to provide a pushbutton device of the type mentioned, which is cheaper to manufacture and time-saving in assembly.
  • the guide brackets are pivotally pivoted about head-fixed axes and that a driver on each of the crossing legs and on the other leg a cooperating control cam are provided such that the guide bracket always move by the same angle relative to the key top.
  • the joint between the crossing legs of the guide bracket is omitted. Therefore no articulated assembly is required.
  • the securing elements and their assembly can be omitted.
  • the interaction of the driver with the control curves ensures that despite the missing joint joint, the guide arrangement consisting of the two guide brackets behaves exactly as the scissors described in the known patent when the button is depressed.
  • the button moves parallel to itself, even if it is pressed on an edge or corner. Tilting of the button head is prevented.
  • stops for limiting the swivel path of the guide bracket are formed on at least one of the crossing legs of a guide bracket.
  • the mounting of the guide bracket on the button head can be done in a simple manner in that bearing forks are formed on the button head, into each of which an axial section of the guide bracket can be clipped. Such a bearing is also very easy to manufacture when injection-molding the plastic key heads.
  • the known arrangement has latching elements which initially hold the guide bracket in the assembly position, the latches being able to be released or overcome by depressing the button head after the guide bracket has been inserted into the guides of the switching device.
  • the push button device has clamping means to fix the guide bracket in a mounting position of the button head, the mounting position of the button head being outside of its travel range from the rest position to the switching position and the clamping action being able to be canceled by depressing the button head.
  • the frictional engagement between two clamping surfaces is therefore sufficient to hold the guide bracket in a position in which its corresponding ends can be inserted into the guide slots of the switching device.
  • a pressure on the key top that overcomes the clamping force is sufficient to cancel the clamping effect. If the key head is to be dismantled again, it only needs to be lifted so far that the clamping takes effect again. Then the button with the corresponding brackets can be easily removed.
  • control curve is shaped so that when the guide bracket is pivoted into the mounting position of the driver on one leg of one guide bracket against the control curve on the crossing leg of the other guide bracket is tensioned.
  • At least one clamping element is arranged and formed on the crossing legs of the guide bracket in such a way that the clamping elements on the crossing legs come into frictional engagement with one another in the mounting position of the key head.
  • one of the clamping elements can be formed by the driver, which engages in a corresponding clamping recess on the other leg.
  • the one clamping element has a groove tapering towards its bottom, while the other clamping element is a spring which engages in the groove and is complementarily shaped to this.
  • a first clamping surface is arranged on the key head in such a way that it comes into frictional engagement with at least one of the guide brackets in the mounting position of the key head with a second clamping surface.
  • the clamping means do not act between the two guide brackets, but between at least one guide bracket and the key top.
  • bearing pins are arranged on the free ends of the bracket legs remote from the button, which are intended for engagement in undercut guide slots provided on the switching device and at their respective free ends are chamfered at an angle to the pin axis such that they can be clipped into the guide slots while deflecting the free leg ends in the direction of the respective pin axis.
  • the pre-assembled button is placed on the switching device and connected to it by clipping on the bearing journal.
  • the guide bracket can be of identical design in order to reduce the manufacturing costs for the entire guide arrangement.
  • the pushbutton device shown in FIG. 1 comprises a key head, generally designated 10, and two identically designed U-shaped guide brackets 12, each with a first leg 14 and a second leg 16, which are connected at one end to a continuous axis forming the U-crosspiece are.
  • the axes 18 of the two guide brackets 12 are clipped into bearing forks 20 which are arranged on the inside of the top surface 22 of the box-shaped key head 10.
  • the guide bracket 12 are thus pivotally mounted on the key head 10 about fixed axes.
  • the legs 14 and 16 each carry an outwardly directed journal 24, which is each intended for engagement in an open guide slot 26, which is otherwise not closer to one Switching device 28 shown is formed by means of bow-shaped extensions 30.
  • the two guide brackets 12, with their crossing legs 14 and 16, form a kind of scissors, but the crossing legs 14 and 16 are not connected to one another by a fixed joint. Rather, the two legs 14 and 16 perform a rotational and translational movement relative to one another.
  • a peg-shaped driver 32 Arranged on the inside of the leg 16 of the one guide bracket 12 is a peg-shaped driver 32, which is intended to bear against a control cam 34 formed in the central part of the other leg 14.
  • a cam 36 formed on the respective leg 14 slides on a control curve 38 formed on the central section of the respective leg 16. If one of the guide brackets 12 is pivoted when the button head 10 is raised or depressed, it automatically takes over the driver pin 32 on its leg 16 and the cam 36 on its leg 14, the legs 14 and 16 on the other guide bracket 12 so that the key top 10 maintains its orientation and cannot tilt during its upward and downward movement, regardless of the point at which it is actuated. On the other hand, it can be seen that the two guide brackets 12 only have to be inserted one into the other in the manner shown in FIG. A further assembly with the help of additional elements is not necessary.
  • the guide brackets 12 To assemble the arrangement shown in FIG. 1 consisting of the button head 10 and the guide brackets 12 on the switching device 28, the guide brackets 12 must be set up so far that the distance a between the outer tangents of the bearing pins 24 (FIG. 1) is smaller than the distance b between the free ends of the projections 30 on the switching device 28 intended for receiving the bearing pins 24.
  • the guide bracket 12 can be locked in this assembly position. In the solution according to the invention, this is done by clamping means on the guide brackets 12 or on the guide brackets 12 on the one hand and the key top 10.
  • control cams 34 on the legs 14 are shaped such that when the key head 10 is pulled up beyond its rest position, the driver pins 32 come into frictional engagement with the respective control cams 34.
  • the driver pin 32 moves to the left in the direction of arrow B until it jams on the control cam 34.
  • the control cam 34 With a corresponding design of the control cam 34, this takes place precisely when the bearing journals 24 have emerged from the guide slots 26 and the button arrangement can thus be conveniently removed and, conversely, reinserted.
  • the control cam 34 must be designed accordingly. Own clamping elements are not required.
  • a stationary post 40 is arranged on the inside of the top surface 22 of the key top 10 near the intersection of two legs 14 and 16. which has an inclined surface 42 on its side facing the legs 14 and 16.
  • the respective leg 14 On the side facing the post 40, the respective leg 14 has a nose 44 (FIG. 4) which slides upwards on the inclined surface 42 when the guide bracket 12 is set up and rests on the vertical surface 46 of the post 40 when the assembly position is reached, the post 40 is slightly bent out (to the left in FIG. 4), so that a clamping effect is created which holds the guide bracket 12 in the installed position.
  • a spring 52 and a clamping element 56 having a groove 54 are arranged on the mutually facing surfaces 48 and 50 on the legs 14 and 16, respectively. If the guide bracket 12 is set up, as can be seen schematically in FIG. 6, the spring 52 engages in the groove 54 of the clamping element 56 in a clamped manner in order to hold the guide bracket 12 in the assembly position shown.
  • FIG. 5 A further embodiment of the clamping means is indicated in FIG. 5 for the sake of simplicity.
  • a nose 58 is arranged on one of the axles or shafts 18, which according to FIG. 9 interacts with a side wall 60 of the key head 10 when the guide bracket 12 is pivoted such that the respective guide bracket clamps in the relevant position (FIG. 9).
  • FIGS 7 and 8 a last embodiment is shown in Figures 7 and 8, in which on the respective leg 14 of the guide bracket 12, a spring-like extension 62 is formed parallel to the control cam 34 and at a distance therefrom, so that one to the Driver pin 32 is formed on the crossing leg 16 open clamping slot 64. If the guide bracket 12 is pivoted into the mounting position, the driver pin 32 comes into the clamping slot 64, so that the guide bracket 12 is in turn held in its mounting position.
  • FIG. 10 shows a modified embodiment of the pushbutton device described, the same parts being designated with the same reference numerals.
  • the trunnions 24 are chamfered at their free ends to form an instruction surface 25.
  • the bow-shaped extensions 30, which form the undercut guide slots 26, have a complementary oblique instruction surface 31 on their outside.
  • the assembly of the button head 10 connected to the guide brackets 12 on the switching device 28 then takes place in such a way that the button head arrangement with the bearing pins 24 is placed on the bracket 30 and pressed in the direction of arrow B, the free ends of the bracket legs 14, 16 are deflected in the direction of the journal axes by the guide surfaces 25, 31 and then the bearing journals 24 snap into the guide slots 26.
  • a fixation of the guide bracket 12 in an assembly position is in this Embodiment not required.
  • the assembly can take place in any position of the guide bracket 12.

Landscapes

  • Push-Button Switches (AREA)
  • Seats For Vehicles (AREA)
EP91109346A 1990-12-10 1991-06-07 Dispositif de bouton-poussoirs Expired - Lifetime EP0490023B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039379 1990-12-10
DE4039379A DE4039379C1 (fr) 1990-12-10 1990-12-10

Publications (2)

Publication Number Publication Date
EP0490023A1 true EP0490023A1 (fr) 1992-06-17
EP0490023B1 EP0490023B1 (fr) 1994-12-28

Family

ID=6419988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109346A Expired - Lifetime EP0490023B1 (fr) 1990-12-10 1991-06-07 Dispositif de bouton-poussoirs

Country Status (4)

Country Link
EP (1) EP0490023B1 (fr)
DE (2) DE4039379C1 (fr)
ES (1) ES2066271T3 (fr)
HK (1) HK55996A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619588A1 (fr) * 1993-04-05 1994-10-12 Brother Kogyo Kabushiki Kaisha Commutateur à touche
US5504283A (en) * 1992-10-28 1996-04-02 Brother Kogyo Kabushiki Kaisha Key switch device
GB2315162A (en) * 1996-07-08 1998-01-21 Behavior Tech Computer Corp Keyboard switch

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316998A1 (de) * 1993-05-21 1994-11-24 Eaton Controls Gmbh Elektrischer Drucktastenschalter
JP3201102B2 (ja) * 1993-11-05 2001-08-20 ブラザー工業株式会社 キースイッチ装置及びその組立方法
DE4401644C2 (de) * 1994-01-21 1997-02-06 Kammerer Gmbh M Drucktaste zur Betätigung von Regelgliedern, insbesondere Heizungs-, Klima- und Lüftungsreglern in Kraftfahrzeugen
DE9407412U1 (de) * 1994-05-04 1994-09-29 Chen, Pao-Chin, Taipeh/T'ai-pei Tastenschalter für einen Computer
US5813521A (en) * 1995-08-11 1998-09-29 Fujitsu Takamisawa Component Limited Keyswitch having a reduced height and a keyboard using such a keyswitch
TW281743B (en) * 1995-08-11 1996-07-21 Fujitoru Takamisawa Parts Co Ltd Keyswitch having a reduced height and a keyboard using such a keyswitch
US5746308A (en) * 1996-12-02 1998-05-05 Acer Peripherals, Inc. Push button switch having scissors-type arm members
JP2000315434A (ja) * 1999-03-01 2000-11-14 Brother Ind Ltd キースイッチ装置、キースイッチ装置を備えたキーボード及びキーボードを備えた電子機器
JP5241812B2 (ja) * 2010-12-22 2013-07-17 キヤノン株式会社 スイッチ装置
DE102017216824A1 (de) 2017-09-22 2019-03-28 Audi Ag Bedieneinrichtung mit einem Scherengelenkelement, Verfahren zum Betreiben eines Kraftfahrzeugs, Kraftfahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433225A (en) * 1983-02-22 1984-02-21 General Instrument Corporation Keytop levelling mechanism
EP0134509A2 (fr) * 1983-08-17 1985-03-20 Preh-Werke GmbH & Co. KG Bouton-poussoir
DE3719839C1 (de) * 1987-06-13 1988-10-13 Preh Elektro Feinmechanik Drucktasteneinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433225A (en) * 1983-02-22 1984-02-21 General Instrument Corporation Keytop levelling mechanism
EP0134509A2 (fr) * 1983-08-17 1985-03-20 Preh-Werke GmbH & Co. KG Bouton-poussoir
DE3719839C1 (de) * 1987-06-13 1988-10-13 Preh Elektro Feinmechanik Drucktasteneinrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504283A (en) * 1992-10-28 1996-04-02 Brother Kogyo Kabushiki Kaisha Key switch device
EP0619588A1 (fr) * 1993-04-05 1994-10-12 Brother Kogyo Kabushiki Kaisha Commutateur à touche
GB2315162A (en) * 1996-07-08 1998-01-21 Behavior Tech Computer Corp Keyboard switch
GB2315162B (en) * 1996-07-08 1999-05-26 Behavior Tech Computer Corp Keyboard switch

Also Published As

Publication number Publication date
DE59104068D1 (de) 1995-02-09
ES2066271T3 (es) 1995-03-01
DE4039379C1 (fr) 1992-04-30
HK55996A (en) 1996-04-03
EP0490023B1 (fr) 1994-12-28

Similar Documents

Publication Publication Date Title
DE2633972C3 (de) Anordnung zum Verbinden zweier Bauteile
DE3131030C2 (de) Schalterbetätigungsvorrichtung
EP0490023B1 (fr) Dispositif de bouton-poussoirs
EP1709269A1 (fr) Dispositif de clipsage a l'aide de dispositifs ressorts a lames destines au montage rapide de ferrures comme des serrures a levier pivotant, des parties charnieres dans des ouvertures d'une paroi mince
DE202004002321U1 (de) Positioniervorrichtung für eine Mehrsegment-Gleitschieneneinrichtung für Schubladen
EP0422678B1 (fr) Coffre à bagages
WO1990002411A1 (fr) Commutateur electrique, notamment commutateur fixe a la colonne de direction pour vehicules a moteur
EP0263430B1 (fr) Toit pare-soleil
EP1834544A1 (fr) Verrouillage pour tables de ping-pong dotée de demi-panneaux pivotants
DE2140161A1 (de) Schalter, insbesondere tastschalter
DE3137552A1 (de) "schnaepperscharnier"
DE3519486C1 (de) Heftmechanik fuer Loseblatt-Ordner
DE3816838C2 (de) Möbelscharnier mit Aufschnappmechanik
EP1075818A2 (fr) Appareil à essuyer le sol
DE3152329C2 (de) Fensterheber, insbesondere für Kraftfahrzeuge
DE2607186C2 (de) Drucktastenschalter
DE2639446A1 (de) Stangenbefestiger
DE3230312A1 (de) Locher fuer papier- und pappwaren aus im wesentlichen zweistrangpress- bzw. extrusionsprofilen
DE10051625A1 (de) Locher für Papier oder folienförmiges Material
DE9113128U1 (de) Gestell aus mit Verbindungsschlössern verbundenen Profilstangen
DE2741292C2 (de) Tastenschalter
DE29701673U1 (de) Türfeststeller
EP3666120B1 (fr) Dispositif de raccordement de l'avant de tiroir et tiroir
DE7835570U1 (de) Ausstellvorrichtung fuer dreh-kipp- fenster mit feststellraste
WO2024008239A1 (fr) Dispositif de connexion de câble

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: A1

Designated state(s): DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19921215

17Q First examination report despatched

Effective date: 19940303

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT NL SE

REF Corresponds to:

Ref document number: 59104068

Country of ref document: DE

Date of ref document: 19950209

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2066271

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

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

Effective date: 19950303

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: SE

Payment date: 20000425

Year of fee payment: 10

Ref country code: ES

Payment date: 20000425

Year of fee payment: 10

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

Ref country code: NL

Payment date: 20000621

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: SE

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

Effective date: 20010608

Ref country code: ES

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

Effective date: 20010608

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

Ref country code: NL

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

Effective date: 20020101

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

EUG Se: european patent has lapsed

Ref document number: 91109346.6

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

Effective date: 20020101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030303

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050607

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: DE

Payment date: 20080829

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20090618

Year of fee payment: 19

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

Ref country code: GB

Payment date: 20090623

Year of fee payment: 19

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

Ref country code: DE

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

Effective date: 20100101

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

Effective date: 20100607

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

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

Ref country code: FR

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

Effective date: 20100630

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

Ref country code: GB

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

Effective date: 20100607