EP0952597B1 - Clavier pour l'entrée d'instructions de commande - Google Patents

Clavier pour l'entrée d'instructions de commande Download PDF

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Publication number
EP0952597B1
EP0952597B1 EP99107090A EP99107090A EP0952597B1 EP 0952597 B1 EP0952597 B1 EP 0952597B1 EP 99107090 A EP99107090 A EP 99107090A EP 99107090 A EP99107090 A EP 99107090A EP 0952597 B1 EP0952597 B1 EP 0952597B1
Authority
EP
European Patent Office
Prior art keywords
keyboard
keys
switching
keypad
keyboard according
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
EP99107090A
Other languages
German (de)
English (en)
Other versions
EP0952597A1 (fr
Inventor
Meinolph Kaufmann
Ernst Schwarz
Hugo Felder
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP99107090A priority Critical patent/EP0952597B1/fr
Publication of EP0952597A1 publication Critical patent/EP0952597A1/fr
Application granted granted Critical
Publication of EP0952597B1 publication Critical patent/EP0952597B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H13/702—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
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/006—Only mechanical function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/016—Lever; Rocker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/05—Force concentrator; Actuating dimple
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/042—Casings mounted in conventional keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/034—Positioning of layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/062—Maintenance or repair facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/03—Elevator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/002—Key modules joined to form button rows
    • H01H2233/004—One molded part

Definitions

  • the invention relates to a keyboard for the input of control commands, as used in particular for the call input in elevators use.
  • a keyboard for the input of control commands has become known in which a switching mat is equipped with buttons that is placed on a provided with electrical switching contacts and circuits print.
  • the push-buttons feature switch cams equipped with contacts, which act directly on the corresponding contacts of the print at the push of a button and can thus trigger a control command.
  • a similar keyboard is also known from GB 2 068 643 A.
  • the contact is triggered by a direct contact of the contacted switching cam of the probe with the print resp. with the contact area on the print. Due to the open construction of this keyboard, moisture can penetrate between the switching mat and the print provided with printed conductors and switching contacts. This leads to rapid corrosion and / or oxidation of the switching contacts and printed conductors and can consequently lead to short circuits and thus to an unsatisfactorily short service life of the keyboard. Furthermore, the force applied during the operation of the keys is transferred directly to the contact surface of the print and can intentionally or unintentionally lead to the destruction of the keyboard if the force is too great.
  • the invention has for its object to propose a keyboard for the input of control commands of the type mentioned, which does not have the aforementioned disadvantages.
  • the advantages achieved by the invention are essentially to be seen in the fact that the triggering by buttons switching operation takes place in a closed unit in the form of a bearing plate comprising a keyboard mat and a membrane keyboard, wherein the switch contacts are in the moisture-sealed membrane keyboard, respectively.
  • the call recording takes place in the moisture-sealed membrane keypad and the switching cam of the keypad have only trigger function.
  • the closed unit in the form of the bearing plate also represents a considerable ease of assembly, since the keypad and the membrane keypad are already factory pre-assembled in the bearing plate and on site only a keypad must be placed.
  • the measures listed in the dependent claims advantageous refinements and improvements of claim 1 keyboard for entering control commands are possible.
  • the attached to the closed unit keys are combined by means of film hinges to a keypad and are each provided with a stop which acts on the bearing plate, so that even with too much force on the key after contact triggering the key stroke is limited by the stop.
  • FIG. 1 shows a view of a membrane keyboard 1.
  • This membrane keyboard 1 is sealed against the effects of moisture and is provided, for example, with fifteen contacts 2.
  • the number of contacts 2 can be freely selected depending on the size or the desired number of signals to be triggered on the keyboard.
  • the contacts 2 each have two contact surfaces 3, which are separated by an air or gas cushion and form a so-called contact chamber, said air or gas cushion is the switching path. If mechanical pressure is now exerted on a contact 2, the air or gas cushion is pressed together until the two contact surfaces 3 touch and the desired signal is triggered. After completion of the pressure exerted on the contact 2, the air or gas cushion expands back to the starting position and the contact 2 is opened again. In each case several, for example three, contacts 2 resp.
  • Contact chambers are connected via not shown in the figure, connecting channels for the purpose of pressure equalization and thereby improve the switching behavior.
  • This membrane keypad 1 or separated by an air or gas cushion contacts 2 are characterized in particular by the long life (several million switching operations) and the cost-effective production.
  • interconnects are inserted, which are led out from the contacts 2 via a tongue 4 in order to process the signals in an electronic or control unit can.
  • openings 6 are provided. These openings 6 are arranged so that they fit over mounted on the bearing pocket 5 pins and the membrane keyboard 1 is thus fixed.
  • FIG. 2c shows an enlarged section of a switching cam 11 according to FIGS. 2a and 2b.
  • the switching cam 11 consists essentially of a switching element 13 and a dome 14.
  • the dome 14 of the switching cam 11 are each constructed so that a defined switching point for the switching element 13 is given. This means that the dome 14 has a precisely defined sticking point or tipping point, which is overcome at a certain force on the switching cam 11.
  • the switching element 13 is then on the underlying contact 2 resp. pressed the contact surfaces 3 of the membrane keyboard 1 and thus triggers a signal.
  • the switching element 13 can be pressed onto the underlying contact 2 of the membrane keyboard 1.
  • this construction basically differs in that the switching element 13 is not provided with a contact surface or a contact pill, but only the function of the call triggering has.
  • the actual call recording takes place in the sealed membrane keypad 1 by compressing the two contact surfaces 3.
  • FIG. 3a shows a view
  • FIG. 3b shows a side elevation of a bearing plate or bearing pocket 5.
  • This bearing plate 5 has the task of receiving and fixing the membrane keyboard 1 and the keypad mat 10.
  • the bearing plate 5 consists of an upper part 20 and a lower part 21, which are connected to each other via a film hinge 22. Upper part 20 and lower part 21 are in one piece, so that the entire bearing pocket 5 can be produced in one piece in an injection molding tool.
  • the lower part 21 has ribs 28 in the form of webs up to the rear wall, which serves both to stiffen the bearing plate 5 and as a force dissipation in case of excessive pressure on the keys.
  • the upper part 20 contains pins 23 whose spacing grid corresponds to that of the openings 6 of the membrane keypad and the openings 12 of the keypad mat 10. Next 20 openings 24 are provided on the upper part, the spacing grid corresponds to the switching cam 11 of the keypad 10. These Openings 24 serve to establish the connection between the switching cam 11 and the keys of the keypad 16.
  • the bearing plate 5 can be closed.
  • the bearing plate 5 is closed by the lower part 21 is folded over the film hinge 22 on the upper part 20.
  • a closure is provided which allows a one-time closure or it can be used a closure which can be opened again for maintenance.
  • cams 25, with a conical tip, which fit into holes 26 on the lower part 21 can be arranged on the upper part 20, wherein the diameter of the holes 26 is slightly smaller than the largest diameter of the apex of the cam 25.
  • the closed bearing plate or storage bag 5 is a complete, protected and functional unit and also greatly facilitates the assembly, since the keyboard mat 10 and the membrane keyboard 1 are already factory pre-assembled in the bearing plate 5 and on site only one as in the figures 4a and b described keypad 16 must be placed.
  • mounting holes 27 are provided on the upper part 20 and on the lower part 21, which lie one above the other in the closed state of the bearing plate 5.
  • Figure 4a shows a side elevation and Figure 4b is a view of a keypad 16.
  • This keypad 16 as he can be used in particular in an elevator installation, for example, a ten-key with other additional functions such as a disability button, etc., is made in one piece and consists of keys 30 and a frame member 31.
  • Film hinges 32 make the connection of the keys 30 to the frame member 31, for
  • the keypad 16 may be made entirely of plastic, the keys 30 being provided with plastic injection molded symbols and / or numbers.
  • the actual keys 30 may be made of metal, such as zinc die-cast, numbers and symbols with plastic injection molding, the remaining elements, such as the frame member 31 and the film hinge 32 are made of plastic.
  • mounting pins 33 are attached, by means of which the keypad 16 can be snapped onto the closed bearing plate 5 by the mounting pins 33 are pressed into the associated mounting holes 27 of the bearing plate 5.
  • a switching strip 34 on the back of each button 30 provides the connection to the corresponding switching cam 11 of the keypad 10 at a keystroke through which the call triggering finally takes place on the contact 2 of the membrane keypad 1.
  • a stop 35 has the task to limit the switching path to the switching cam 11 and to prevent too much force on the button 30 destruction of the keyboard mat 10 or the membrane keyboard 1 by the stopper 35 acts on the outside of the closed bearing plate 5.
  • FIG. 5 shows a perspective view of the entire keyboard.
  • This closed unit can be pre-assembled and installed in the production in a short time in the terminal, and if necessary be delivered as a spare part directly to the site.
  • time can be saved during assembly and in addition, the membrane keyboard 1 and the keypad 10 are protected by the closed bearing plate 5 against damage.
  • Next also has an advantageous effect that no additional fasteners are needed to assemble the keyboard.
  • only the key block 16 has to be snapped onto the bearing plate 5.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Selective Calling Equipment (AREA)

Claims (10)

  1. Clavier pour l'entrée d'instructions de commande, ce clavier pour l'entrée des instructions de commande se composant de contacts électriques (2), d'un mat de clavier (10) avec des saillies de commutation (11) et de touches (30), et l'actionnement des contacts (2) se faisant par l'intermédiaire des saillies de commutation (11) grâce à une pression sur les touches (30), et les touches (30) étant réunies pour former un bloc de touches (16),
    caractérisé en ce qu'un clavier à membrane (1) qui contient les contacts électriques (2) et le mat de clavier (10) se trouvent dans une unité fermée en forme de plaque de montage (5) et en ce que le bloc de touches (16) est posé sur la plaque de montage (5).
  2. Clavier selon la revendication 1, caractérisé en ce que les contacts (2) qui se trouvent dans le clavier à membrane (1) se composent de deux surfaces de contact (3) séparées par un coussin d'air ou de gaz.
  3. Clavier selon la revendication 1 ou 2, caractérisé en ce que le clavier à membrane (1) est rendu étanche aux influences de l'humidité.
  4. Clavier selon l'une des revendications 1 à 3, caractérisé en ce que les saillies de commutation (11) du mat de clavier (10), composées de préférence de caoutchouc silicone, se composent d'un élément de commutation (13) et d'une calotte (14).
  5. Clavier selon l'une des revendications 1 à 4, caractérisé en ce que la plaque de montage (5) se compose d'une partie supérieure (20) et d'une partie inférieure (21) qui sont reliées par une charnière en forme de film (22).
  6. Clavier selon l'une des revendications 1 à 5, caractérisé en ce que le bloc de touches (16) se compose d'un cadre (31) et des touches (30) qui sont reliés à l'aide de charnières en forme de film (32).
  7. Clavier selon l'une des revendications 1 à 6, caractérisé en ce que les touches (30) se composent de matière plastique ou de métal, avec des chiffres et des symboles injectés par derrière en matière plastique.
  8. Clavier selon l'une des revendications 1 à 7, caractérisé en ce que les touches (30) sont pourvues d'une butée (35).
  9. Clavier selon l'une des revendications 1 à 8, caractérisé en ce que la plaque de montage (5) est verrouillée en position fermée.
  10. Clavier selon l'une des revendications 1 à 9, caractérisé en ce que la partie inférieure (21) de la plaque de montage (5) présente des nervurages (28) en forme de nervures jusqu'à la paroi arrière.
EP99107090A 1998-04-23 1999-04-12 Clavier pour l'entrée d'instructions de commande Expired - Lifetime EP0952597B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99107090A EP0952597B1 (fr) 1998-04-23 1999-04-12 Clavier pour l'entrée d'instructions de commande

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98810360 1998-04-23
EP98810360 1998-04-23
EP99107090A EP0952597B1 (fr) 1998-04-23 1999-04-12 Clavier pour l'entrée d'instructions de commande

Publications (2)

Publication Number Publication Date
EP0952597A1 EP0952597A1 (fr) 1999-10-27
EP0952597B1 true EP0952597B1 (fr) 2006-02-08

Family

ID=8236051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107090A Expired - Lifetime EP0952597B1 (fr) 1998-04-23 1999-04-12 Clavier pour l'entrée d'instructions de commande

Country Status (10)

Country Link
US (1) US6087600A (fr)
EP (1) EP0952597B1 (fr)
JP (1) JP2000112622A (fr)
CN (1) CN1118076C (fr)
AT (1) ATE317588T1 (fr)
CA (1) CA2269391C (fr)
DE (1) DE59913104D1 (fr)
ES (1) ES2258303T3 (fr)
MY (1) MY123279A (fr)
SG (1) SG85634A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6781071B2 (en) * 2000-04-20 2004-08-24 Delphi Technologies, Inc. Electrical switch actuating element
KR100713414B1 (ko) * 2004-11-24 2007-05-04 삼성전자주식회사 업/다운 키들을 구비한 휴대 통신 장치
US7629547B2 (en) * 2006-04-24 2009-12-08 Nokia Corporation Illuminating of an electrical device
JP4749404B2 (ja) * 2007-10-15 2011-08-17 アール・ビー・コントロールズ株式会社 スイッチ基板の保持構造
JP2011510459A (ja) * 2008-01-24 2011-03-31 パナソニック株式会社 キースイッチ及び電子機器
EP3347296B1 (fr) 2015-09-11 2019-11-27 Inventio AG Panneau de fonctionnement pour un ascenseur avec interrupteur à clé protégé contre les projections d'eau
EP3817169B1 (fr) 2019-10-28 2022-02-09 KONE Corporation Station d'inspection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032729A (en) * 1973-12-21 1977-06-28 Rockwell International Corporation Low profile keyboard switch having panel hinged actuators and cantilevered beam snap acting contacts
US4092527A (en) * 1977-01-31 1978-05-30 Texas Instruments Incorporated Calculator with interchangeable keyset
US4323740A (en) * 1980-02-04 1982-04-06 Rogers Corporation Keyboard actuator device and keyboard incorporating the device
JPS58117619A (ja) * 1981-12-29 1983-07-13 キヤノン株式会社 電子機器
KR900002951B1 (ko) * 1985-01-25 1990-05-03 마쯔시다덴기산교 가부시기가이샤 푸시버튼장치
JPS61288258A (ja) * 1985-06-14 1986-12-18 Nippon Texas Instr Kk 電子機器用ケ−ス
US5481074A (en) * 1992-08-18 1996-01-02 Key Tronic Corporation Computer keyboard with cantilever switch and actuator design
DE19627184C2 (de) * 1995-07-07 2000-08-31 Hosiden Corp Tastatur
US5661279A (en) * 1995-10-26 1997-08-26 Sunarrow Co., Ltd. Pushbutton switch
US5734136A (en) * 1996-06-12 1998-03-31 Qualcomm Incorporated Keypad assembly with moisture-excluding seal

Also Published As

Publication number Publication date
SG85634A1 (en) 2002-01-15
DE59913104D1 (de) 2006-04-20
MY123279A (en) 2006-05-31
ATE317588T1 (de) 2006-02-15
CA2269391A1 (fr) 1999-10-23
ES2258303T3 (es) 2006-08-16
HK1022563A1 (en) 2000-08-11
CN1118076C (zh) 2003-08-13
US6087600A (en) 2000-07-11
JP2000112622A (ja) 2000-04-21
CA2269391C (fr) 2007-02-06
CN1233066A (zh) 1999-10-27
EP0952597A1 (fr) 1999-10-27

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