EP0000696B1 - Dispositif à touches pour la génération de signaux au moyen de touches groupées par paires ou de façon quadratique faisant partie d'un circuit ET - Google Patents

Dispositif à touches pour la génération de signaux au moyen de touches groupées par paires ou de façon quadratique faisant partie d'un circuit ET Download PDF

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Publication number
EP0000696B1
EP0000696B1 EP78100242A EP78100242A EP0000696B1 EP 0000696 B1 EP0000696 B1 EP 0000696B1 EP 78100242 A EP78100242 A EP 78100242A EP 78100242 A EP78100242 A EP 78100242A EP 0000696 B1 EP0000696 B1 EP 0000696B1
Authority
EP
European Patent Office
Prior art keywords
keys
key
switching
signals
array 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
Application number
EP78100242A
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German (de)
English (en)
Other versions
EP0000696A1 (fr
Inventor
Kurt Kunz
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.)
Hans Widmaier Fabrik fur Apparate Der Fernmelde- und Feinwerktechnik
Original Assignee
Hans Widmaier Fabrik fur Apparate Der Fernmelde- und Feinwerktechnik
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 Hans Widmaier Fabrik fur Apparate Der Fernmelde- und Feinwerktechnik filed Critical Hans Widmaier Fabrik fur Apparate Der Fernmelde- und Feinwerktechnik
Publication of EP0000696A1 publication Critical patent/EP0000696A1/fr
Application granted granted Critical
Publication of EP0000696B1 publication Critical patent/EP0000696B1/fr
Expired 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
    • H01H13/84—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 ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/036—Plural multifunctional miniature keys for one symbol
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H01H2223/0345—Bezel with keys positioned directly next to each other without an intermediate bezel or frame

Definitions

  • the invention relates to a key arrangement for triggering certain symbols of the key surface respectively assigned switching functions or switching signals.
  • Key arrangements in the form of keypads or rows of keys are generally known, in which, for example, a switch contact is assigned to each individual key, which is closed to implement a switching function when the relevant key is pressed, or which emits a switching signal to a user group as soon as the associated key is depressed.
  • German patent specification 737 039 discloses a key arrangement for triggering switching functions or switching signals which are assigned to specific symbols of the key surface, with a plurality of keys which are each assigned a specific labeling field for a symbol and can be depressed together by a finger, the output actuating movement signals of which form the the switching function or the switching signal mentioned are subjected to an AND operation.
  • the number of keys required to generate a certain number of switching functions or switching signals is reduced in the known arrangement by providing a total of four keys in roughly square groups in pairs on different levels, one of the four keys being designed in such a way that it is different from the one Fingers of an operating hand can not only be operated alone, but also optionally together with one or two of the buttons on the other level.
  • a pair of adjacent keys are assigned to one of the labeling fields in this row of keys, or several keys are assigned to a labeling field in an essentially square grouping in the key field.
  • the output actuator signals from at least two of these grouped keys are ANDed.
  • the object of the invention is to achieve a mechanical key set for triggering switching functions or switching signals assigned to specific symbols of the key surface, with a plurality of keys, each assigned to a specific labeling field for a symbol and which can be depressed together by a finger, and whose output actuating movement signals to form the switching function or the switching signal mentioned are subjected to an AND operation, whereby, despite a restriction on the labeled key surface, the operating finger nevertheless offers a relatively large and in each case the same surface, which exerts a uniform and in each case the same counterpressure on the operating finger .
  • This object is achieved in that progressively from key to key in a row of keys each pair of adjacent keys or in a key field of each group of four square-grouped adjacent keys, of which the output positioning movement signals of at least two diagonally opposite keys of the AND link be subjected to a label field is assigned without individual Keys have independent functional meaning.
  • the output positioning movement signals are preferably used only from every second key of each key row and each key column to derive the switching function or the switching signal.
  • the output actuation movement signals of a key group to be subjected to an AND linkage can be coupled to a mechanical AND switching element, the mechanical AND switching element in each case from a switching pin coupled to the respective output output signals to be linked in the direction of the rest position is formed, by means of which the switching function or the switching signal is generated and which is biased towards the actuating position with a force which is less than a respective force biasing the keys in the rest position, such that the biasing force of the switching pin only in this Actuating position is able to pull when all of the keys of the relevant key group are actuated.
  • a driver pin is provided, with which the keys of a key group delivering the respective output positioning movement signals are coupled in such a way that when the driver pin is also depressed, the keys of the relevant key group are fully depressed.
  • FIG. 1 shows a keypad 1, by means of which only four symbols are to be signaled by pressing keys or switching functions or switching signals assigned to the individual symbols are to be generated.
  • the key field according to FIG. 1 has a total of nine keys, which have a total of four labeling fields b 1 , b on their surface wear z , b 3 and b 4 .
  • Each of these labeling fields takes up part of the key surface of four keys in a square arrangement, which represent a key group.
  • the labeling fields b 1 to b 4 are thus divided crosswise by the column located between the keys of a key group.
  • mechanical transmission means 2 or 3 or 4 or 5 lead to contact sets 6 or 7 or 8 or 9, the individual switching contacts of contact sets 6 to 9 being connected in such a way that the contact sets are connected via the mechanical transmission means 2 to 5 supplied output actuation movement signals of the keys of the keypad 1 are subjected to a certain AND operation.
  • the mechanical transmission means 2 and 4 effect those which are the first key of the second key line and the first key of the second Key columns include that the respective upper contacts of the contact sets 6 and 8 are closed and the respective associated signal line is turned on. If the four keys of the keypad 1, which belong to the labeling field b 2, are depressed, the mechanical transmission means 4 and 5, which are coupled to the first key of the second key column and the last key of the second key row, cause the lower contact of the Contact set 8 and the upper contact of the contact set 9, so that the signal line connected to it creates a lead connection.
  • the mechanical transmission means 2 and 3 cause the lower contact of the contact set 6 and the upper contact of the contact set to close due to the depression of the first key of the second row of keys and the last key of the second key column 7, so that the signal line 3 becomes continuous.
  • Depressing the keys belonging to the labeling field b 4 closing the lower contact of the contact sets 7 and 9 and thus connecting the signal line 4.
  • those keys to which the mechanical transmission means 2 to 5 are connected are also included marked with a dot on the button surface.
  • Figure 2c shows a keypad with sixteen keys in a square arrangement of four rows and four columns.
  • This conventional keypad has symbols 1 to 16 each associated with switching elements, so that a total of sixteen switching elements are required for the output of signals corresponding to the individual symbols.
  • a total of only twelve switching elements are assigned very specific keys, in such a way that only every second key of each row of keys and every second key of each key column serves to actuate such a switching element, the output signal of which a decoder D having twelve inputs and sixteen outputs is input.
  • the decoding device can be designed as an integrated circuit and can be produced in a simple manner. It should also be noted that, as in FIG. 1, those individual keys are marked with a dot in the illustration according to FIG. 2d, which serve to actuate a switching element whose output signal line leads to a specific input of the decoding device D. In the schematic illustration according to FIG.
  • FIGS. 2c and 2d the part of the signal lines running under the keypad is indicated by a broken line.
  • a comparison of FIGS. 2c and 2d shows on the one hand the reduction in the space requirement with the same operating safety and the possible saving of switching elements with the same number of symbols in each case, the additional effort caused by the decoding device not being important, particularly in the case of electronic designs of this part.
  • Each of the switching pins is provided with a head 11 which is received in a recess at the abutment of the keys of a group of keys.
  • the switch pin has a shaft which extends through a bore provided along the butt joint of the keys of a key group.
  • a tension spring 12 engages, which attempts to pull the switching pin 10 downward against the force of compression springs 13, which in turn bias the individual keys upward in the rest position.
  • the tensile force exerted by the spring 12 is less than the compressive force of each of the compression springs 13, so that the switching pin 10 can only be pulled down into the actuating position when all of the keys belonging to a key group or to a labeling field are depressed.
  • the head 11 of the stylus 10 can also be accommodated within the keys in a recess or chamber provided therein, so that the labeling areas are each self-contained except for the column between the individual keys.
  • Pushbutton switches 15 are connected to the individual switching pins 10 via mechanical transmission means or actuating linkages, which switch switches 15 generate or implement the switching functions or switching signals identified by the symbols.
  • FIG. 4 again corresponds essentially to that according to FIG. 1, the switch contacts which establish the connections in the course of the signal lines 1 to 4 being represented by a block symbol and designated by the reference number 16.
  • the mechanical transmission means 2 to 5 lead to the contact sets, which are coupled to those of the keys of the keypad 1 which have a dot to clarify the representation on the key surface.
  • FIG. 4 shows, compared to FIG. 1, an enlarged keypad in the direction of the key columns, which is shown broken away, in order to make it clear that the keys shown here showed thoughts applicable to keypads of any size.
  • driver pins 17 similar to the switching pins 10 of the embodiment according to FIG. 3 between the joints of the keys belonging to a labeling field.
  • the driver pins 17 are biased downwards by small tension springs 18, while the compression springs 13 Preload the individual keys of keypad 1 in the rest position. If the buttons belonging to a labeling field are hit by the tip of the actuating finger in such a way that the head of the driving pin 17 is depressed at the same time, the driving pin has the effect that all buttons of a button group are actuated synchronously and that the contact sets are properly actuated via the button mechanical transmission means 2 to 5 comes.
  • the driver pins 17 are thus effective as synchronization means. It should be pointed out that the embodiments according to FIGS. 3 and 4 offer the essential advantage over known key arrangements with island keys that on the one hand a considerable size of the labeling field is available for each individual symbol and on the other hand the actuating finger is offered a self-contained actuating surface .
  • the person skilled in the art recognizes from the above that the size of the heads of the switching pins 10 or of the driving pins 17, insofar as these heads are exposed on the button surface, is to be kept as small as possible in order to obtain the greatest possible operational safety. From this point of view, the embodiment according to FIG. 1 is to be regarded as preferred.

Landscapes

  • Input From Keyboards Or The Like (AREA)

Claims (8)

1. Dispositif à touches pour déclencher des fonctions de commande ou des signaux de commande associés respectivement à des symboles déterminés des surfaces de touches, comportant plusieurs touches respectivement associées à une zone déterminée d'inscription de symbole, pouvant être enfoncées en commun par un doigt et dont les signaux d'actionnement servant au déclenchement de la fonction de commande ou du signal de commande désiré sont soumis à un traitement logique ET, dispositif caractérisé en ce que, en considérant une progression de touche à touche, une zone d'inscription est associée, dans chaque rangée, à une paire de touches placées côte à côte, ou bien, dans un panneau de touches, à chaque groupe de quatre touches respectivement adjacentes et groupées en carré et dont les signaux d'actionnement d'au moins deux touches placées mutuellement en diagonale sont soumis à un traitement logique ET, sans que les différentes touches aient isolément une importance fonctionnelle.
2. Dispositif à touches selon la revendication 1, caractérisé en ce que, dans un panneau de touches (1), on n'utilise pour le déclenchement des fonctions de commande ou des signaux de commande que les signaux d'actionnement seulement de chaque seconde touche de chaque rangée et de chaque colonne de touches.
3. Dispositif à touches selon la revendication 1 ou 2, caractérisé en ce que les signaux d'actionnement destinés à être soumis à un traitement logique ET sont appliqués à chaque fois à un élément mécanique de commande-ET (10, 11, 12, 13).
4. Dispositif à touches selon la revendication 3, caractérisé en ce que l'élément mécanique de commande-ET est constitué à chaque fois par une tige de commande (10, 11), reliée en direction de la position de repos à des touches destinées à fournir les signaux d'actionnement à traiter logiquement, à l'aide de laquelle la fonction de commande ou le signal de commande peuvent être produits, et qui est soumise en direction de la position d'actionnement à une force de précontrainte (12) qui est respectivement plus faible qu'une force de précontrainte (13) assurant le maintien des touches en position de repos, de sorte que la force de précontrainte de la tige de commande ne puisse ensuite tirer celle-ci que dans la position d'actionnement lorsque toutes les touches du groupe considéré sont actionnées.
5. Dispositif à touches selon la revendication 1 ou 2, caractérisé en ce que les signaux d'actionnement destinés à être soumis à un traitement logique ET sont à chaque fois appliqués à un élément électromécanique de commande-ET, qui fournit à chaque fois un signal de commande constitué par un signal électrique.
6. Dispositif à touches selon la revendication 5, caractérisé en ce qu'il est prévu une tige d'entraînement 17 à l'aide de laquelle les touches fournissant les signaux d'actionnement à traiter logiquement sont accouplées, dans la direction d'actionnement, de telle sorte que, lors de l'abaissement de la tige d'entraînement, le groupe de touches correspondant soit également complètement abaissé.
7. Dispositif à touches selon la revendication 6, caractérisé en ce que le diamètre d'une tête de la tige d'entraînement, s'appliquant librement sur la surface de touches, a une valeur qui est inférieure à 30% de la longueur d'un côté de touche.
8. Tastenanordnung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Tasten einer Tastengruppe jeweils ein gemeinsames, durch die zwischen den Tasten liegende Spalte unterteiltes Beschriftungsfeld (b,. b2. b3. b4,) aufweisen.
EP78100242A 1977-06-28 1978-06-26 Dispositif à touches pour la génération de signaux au moyen de touches groupées par paires ou de façon quadratique faisant partie d'un circuit ET Expired EP0000696B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2729157 1977-06-28
DE2729157A DE2729157C2 (de) 1977-06-28 1977-06-28 Tastenanordnung zur Auslösung bestimmten Symbolen der Tastenoberfläche jeweils zugeordneter Schaltfunktionen oder Schaltsignale

Publications (2)

Publication Number Publication Date
EP0000696A1 EP0000696A1 (fr) 1979-02-21
EP0000696B1 true EP0000696B1 (fr) 1981-11-18

Family

ID=6012583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100242A Expired EP0000696B1 (fr) 1977-06-28 1978-06-26 Dispositif à touches pour la génération de signaux au moyen de touches groupées par paires ou de façon quadratique faisant partie d'un circuit ET

Country Status (8)

Country Link
US (1) US4400593A (fr)
EP (1) EP0000696B1 (fr)
JP (2) JPS5444833A (fr)
AT (1) AT378437B (fr)
AU (1) AU521178B2 (fr)
CA (1) CA1117202A (fr)
DE (1) DE2729157C2 (fr)
YU (1) YU151378A (fr)

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DE3838747A1 (de) * 1988-11-15 1990-03-15 Blanco Gmbh & Co Kg Vorrichtung zur schaltung elektrischer funktionen

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US9086737B2 (en) * 2006-06-15 2015-07-21 Apple Inc. Dynamically controlled keyboard
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US7489302B2 (en) 2006-09-01 2009-02-10 Research In Motion Limited Handheld mobile communication device with flexible keys
EP2020666B1 (fr) 2007-08-01 2013-11-06 BlackBerry Limited Concepts clé pour clavier compact d'un dispositif de communication portable
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Publication number Priority date Publication date Assignee Title
DE3838747A1 (de) * 1988-11-15 1990-03-15 Blanco Gmbh & Co Kg Vorrichtung zur schaltung elektrischer funktionen

Also Published As

Publication number Publication date
JPS632920Y2 (fr) 1988-01-25
AT378437B (de) 1985-08-12
CA1117202A (fr) 1982-01-26
AU3746578A (en) 1980-01-03
AU521178B2 (en) 1982-03-18
US4400593A (en) 1983-08-23
DE2729157C2 (de) 1984-10-18
JPS5444833A (en) 1979-04-09
ATA433778A (de) 1984-12-15
JPS6293235U (fr) 1987-06-15
DE2729157A1 (de) 1979-01-04
YU151378A (en) 1982-06-30
EP0000696A1 (fr) 1979-02-21

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