EP0407754B1 - Keyboard - Google Patents
Keyboard Download PDFInfo
- Publication number
- EP0407754B1 EP0407754B1 EP90111268A EP90111268A EP0407754B1 EP 0407754 B1 EP0407754 B1 EP 0407754B1 EP 90111268 A EP90111268 A EP 90111268A EP 90111268 A EP90111268 A EP 90111268A EP 0407754 B1 EP0407754 B1 EP 0407754B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- key set
- carrier
- disposed
- guide strip
- 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
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
- H01H13/70—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
- H01H2221/036—Return force
- H01H2221/044—Elastic part on actuator or casing
-
- 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 set of buttons for actuating the contact of an electronic device, in particular a video recorder, the set of buttons consisting of a plurality of individual buttons which are made in one piece from plastic and connected to the device housing or to the device chassis by means of a carrier, and the buttons preferably via a contact plunger on individual Apply pressure switches arranged in series on a pressure plate.
- key sets which have a closed structure and are used as a complete key set on a device chassis or in a device housing. Although these key sets are of universal use, they are complex and not sufficiently flexible with regard to the design of the key button shape. Furthermore, key sets are known, the individual parts of which are assembled into a key set only when the device is being assembled. Here, the device housing preferably takes over the leadership of the button.
- a push button arrangement in which several push buttons molded in one piece from plastic are used.
- the individual push buttons consist of a button and a contact plunger extending in the extension of the button.
- the end of the contact plunger presses on contacts which are arranged on a printed circuit board perpendicular to the longitudinal axis of the pushbuttons.
- Each push button is connected by two webs to a connection carrier which has holes for fastening the entire set of buttons to the push button arrangement or the housing.
- a push button When a push button is pressed, it describes a circular path and thus tilts to its longitudinal axis in the unactuated state.
- the pushbuttons must therefore be designed conically, otherwise touching and possible friction with the button guide can occur while they are being pressed down. Due to the conicity of the pushbuttons, the guidance of the buttons when pressed is no longer guaranteed.
- the object of the invention is therefore to provide a simple set of buttons in the device, which consists of a few parts and is to be installed in the device as automatically as possible, the key guidance of the individual key buttons being largely independent of the guidance provided by the key cutout in the housing.
- FIG. 1 The simplified drawing of FIG. 1 essentially shows a button set 1 in section, which is inserted in a housing 2 of an electronic device.
- the key set here consists of several keys arranged in a row, only one key 3 being shown enlarged in the figure shown.
- the individual key itself has a key button 4, which is extended by a contact plunger 5.
- a short guide bar 6 is attached parallel to the contact plunger.
- Each key is connected to a carrier 8 via a web 7 which is inclined at approximately 45 ° -60 ° to the key actuation line - in the example shown approximately 55 °. It is essential here that the web 7 on both connection sides made of plastic with all other key parts integrally molded film hinges 9 and 9 '.
- the key 3 is connected to the housing 2 via the carrier 8.
- a pressure plate 10 is inserted perpendicular to the direction of actuation of the button 3 in the housing 2 and held by this.
- a contact plunger is assigned in series and in each case on the pressure plate, at least one pressure switch 11 is attached and soldered to the pressure plate.
- the button 3 If the button 3 is now pressed, the position of the film hinges 9, 9 'give the button an almost vertical movement in the direction of the pressure switch 11, and the button can move smoothly relative to the cutout provided in the housing 2.
- the individual button to distinguish different device functions that can be operated via the respective button can have a different key width.
- the button is preferably connected to the carrier 8 by two webs 7 arranged in parallel.
Landscapes
- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanisms For Operating Contacts (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Electrophonic Musical Instruments (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
Description
Die Erfindung betrifft einen Tastensatz zur Kontaktbetätigung eines elektronischen Gerätes, insbesondere eines Videorecorders, wobei der Tastensatz aus mehreren Einzeltasten besteht, die einstückig aus Kunststoff gefertigt und über einen Träger verbunden am Gerätegehäuse oder am Gerätechassis befestigt sind, und die Tasten vorzugsweise über einen Kontaktstössel auf einzelne in Reihe auf einer Druckplatte angeordnete Druckschalter einwirken.The invention relates to a set of buttons for actuating the contact of an electronic device, in particular a video recorder, the set of buttons consisting of a plurality of individual buttons which are made in one piece from plastic and connected to the device housing or to the device chassis by means of a carrier, and the buttons preferably via a contact plunger on individual Apply pressure switches arranged in series on a pressure plate.
Es sind zahlreiche Tastensätze bekannt, die einen geschlossenen Aufbau aufweisen und als kompletter Tastensatz auf ein Gerätechassis oder in ein Gerätegehäuse eingesetzt sind. Diese Tastensätze sind zwar von universeller Verwendbarkeit, jedoch aufwendig und bezüglich der Gestaltung der Tastenknopfform nicht ausreichend flexibel. Weiterhin sind Tastensätze bekannt, deren Einzelteile erst während der Gerätemontage zu einem Tastensatz zusammengesetzt werden. Hierbei übernimmt vorzugsweise das Gerätegehäuse die Führung des Tastenknopfes.Numerous key sets are known which have a closed structure and are used as a complete key set on a device chassis or in a device housing. Although these key sets are of universal use, they are complex and not sufficiently flexible with regard to the design of the key button shape. Furthermore, key sets are known, the individual parts of which are assembled into a key set only when the device is being assembled. Here, the device housing preferably takes over the leadership of the button.
Nachteilig ist bei einem derartigen Aufbau eines Tastensatzes, daß die Führung des Tastknopfes aufwendig ist oder die Betätigung der einzelnen Tastenknöpfe eines Tastensatzes einen unterschiedlichen Tastendruck erfordern.It is disadvantageous in such a structure of a key set that the operation of the key button is complex or the actuation of the individual key buttons of a key set require a different key press.
Aus GB-A-2072584 ist eine Drucktastenanordnung bekannt, bei der mehrere einstückig aus Kunststoff gespritzte Drucktasten eingesetzt werden. Die einzelnen Drucktasten bestehen aus einem Tastenknopf und einem in der Verlängerung des Tastenknopfes sich erstreckenden Kontaktstößel. Bei Niederdrücken der Drucktasten drückt das Ende der Kontaktstößel auf Kontakte, die auf einer senkrecht zur Längsachse der Drucktasten liegenden Leiterplatte angeordnet sind. Jede Drucktaste ist durch zwei Stege mit einem Verbindungsträger verbunden, der Löcher zur Befestigung des gesamten Tastensatzes an der Drucktastenanordnung oder dem Gehäuse aufweist. Beim Drücken einer Drucktaste beschreibt diese einen kreisförmigen Weg und neigt sich somit zu ihrer Längsachse im unbetätigten Zustand. Die Drucktasten müssen deshalb konisch ausgeführt werden, da sonst während ihres Niederdrückens eine Berührung und eventuelle Reibung mit der Tastenführung erfolgen kann. Bedingt durch die Konizität der Drucktasten ist die Führung der Tasten im gedrückten Zustand nicht mehr einwandfrei gewährleistet.From GB-A-2072584 a push button arrangement is known, in which several push buttons molded in one piece from plastic are used. The individual push buttons consist of a button and a contact plunger extending in the extension of the button. When the pushbuttons are depressed, the end of the contact plunger presses on contacts which are arranged on a printed circuit board perpendicular to the longitudinal axis of the pushbuttons. Each push button is connected by two webs to a connection carrier which has holes for fastening the entire set of buttons to the push button arrangement or the housing. When a push button is pressed, it describes a circular path and thus tilts to its longitudinal axis in the unactuated state. The pushbuttons must therefore be designed conically, otherwise touching and possible friction with the button guide can occur while they are being pressed down. Due to the conicity of the pushbuttons, the guidance of the buttons when pressed is no longer guaranteed.
Aufgabe der Erfindung ist es daher, einen einfachen im Gerät aufgebauten Tastensatz zu schaffen, der aus wenigen Teilen besteht und möglichst automatisch im Gerät zu montieren ist, wobei die Tastenführung der einzelnen Tastenknöpfe weitgehend unabhängig von der Führung durch den Tastenausschnitt im Gehäuse gewährleistet ist.The object of the invention is therefore to provide a simple set of buttons in the device, which consists of a few parts and is to be installed in the device as automatically as possible, the key guidance of the individual key buttons being largely independent of the guidance provided by the key cutout in the housing.
Zur Lösung der Aufgabe werden erfindungsgemäß die im kennzeichnenden Teil des Ansprüchs 1 angegebenen Maßnahmen vorgeschlagen.To achieve the object, the measures specified in the characterizing part of
Ein Ausführungsbeispiel wird nachfolgend anhand der Zeichnungen näher erläutert.
- Fig. 1
- ist eine Darstellung eines in einem Gerätegehäuse eingesetzten Tastensatzes, wobei nur eine Taste gezeichnet ist,
- Fig. 2
- ist eine Draufsicht auf einen Kunststoffträger eines Tastensatzes, an den die einzelnen Tasten angehängt sind.
- Fig. 1
- is an illustration of a key set used in a device housing, only one key being drawn,
- Fig. 2
- is a plan view of a plastic carrier of a key set to which the individual keys are attached.
Die vereinfacht dargestellte Zeichnung der Fig. 1 zeigt im wesentlichen einen Tastensatz 1 im Schnitt, der in einem Gehäuse 2 eines elektronischen Gerätes eingesetzt ist. Der Tastensatz besteht hierbei aus mehreren aneinander gereihten Tasten, wobei in der dargestellten Figur nur eine Taste 3 vergrößert gezeichnet ist. Die einzelne Taste selbst weist einen Tastenknopf 4 auf, an den sich verlängernd ein Kontaktstössel 5 anschließt. Parallel zum Kontaktstössel ist eine kurze Führungsleiste 6 angebracht. Jede Taste ist über einen unter ca. 45°-60° zur Tastenbetätigungslinie - im dargestellten Beispiel ca. 55° - geneigten Steg 7 mit einem Träger 8 verbunden. Wesentlich ist hierbei, daß der Steg 7 an beiden Anbindungsseiten aus Kunststoff mit allen übrigen Tastenteilen einstückig gespritzte Filmscharniere 9 und 9′ aufweist. Über den Träger 8 ist die Taste 3 mit dem Gehäuse 2 verbunden. Senkrecht zur Betätigungsrichtung der Taste 3 ist im Gehäuse 2 und von diesem gehalten, eine Druckplatte 10 eingesetzt. Auf der Druckplatte ist in Reihe und jeweils einem Kontaktstössel zugeordnet, wenigstens ein Druckschalter 11 aufgesetzt und mit der Druckplatte verlötet.The simplified drawing of FIG. 1 essentially shows a
Wird nun die Taste 3 betätigt, so verleihen die Lage der Filmscharniere 9, 9′ der Taste eine nahezu senkrechte Bewegung in Richtung des Druckschalters 11, und der Tastenknopf kann sich gegenüber dem vorgesehenen Ausschnitt im Gehäuse 2 reibungsfrei bewegen.If the
Aus der Fig. 2 ist ferner zu ersehen, daß der einzelne Tastenknopf zur Unterscheidung verschiedener Gerätefunktionen, die über den jeweiligen Tastenknopf betätigt werden können, eine unterschiedliche Tastenbreite aufweisen kann. Weiterhin ist der Tastenknopf vorzugsweise von zwei parallel angeordneten Stegen 7 mit dem Träger 8 verbunden.From Fig. 2 it can also be seen that the individual button to distinguish different device functions that can be operated via the respective button can have a different key width. Furthermore, the button is preferably connected to the carrier 8 by two
Claims (3)
- Key set for the contact actuation of an electronic appliance, in particular a video recorder, in which the key set comprises a plurality of individual keys (3) which are integrally made of plastic and are connected to the appliance housing (2) or to the appliance chassis by means of a carrier (8), and the keys act on individual pressure switches (11) disposed in a row on a printed circuit board (10) preferably by means of a contact plunger and each key (3) comprises a keytop (4) and a contact plunger (5) extending in line with the keytop, characterized in that a guide strip (6) disposed essentially in parallel with the longitudinal axis of the contact plunger (5) is present and each key is connected via the guide strip to the carrier (8) by at least one bridge (7) disposed at approximately 45° - 60° to the direction of key actuation, and in that the bridge has, at both attachment ends, a film-type hinge (9, 9′) concomitantly moulded from plastic.
- Key set according to Claim 1, characterized in that the thin region of the hinge (9, 9′) at the attachment point extends in longitudinally stretched form to the guide strip between bridge (7) and guide strip (6) and the hinge region is disposed in line with the carrier with respect to the attachment point of the carrier.
- Key set according to Claims 1 and 2, characterized in that two bridges disposed in parallel are responsible for the attachment by means of the film-type hinges between guide strip and carrier.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8908429U | 1989-07-11 | ||
DE8908429U DE8908429U1 (en) | 1989-07-11 | 1989-07-11 | Keyset |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0407754A2 EP0407754A2 (en) | 1991-01-16 |
EP0407754A3 EP0407754A3 (en) | 1991-10-23 |
EP0407754B1 true EP0407754B1 (en) | 1994-09-28 |
Family
ID=6840970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90111268A Expired - Lifetime EP0407754B1 (en) | 1989-07-11 | 1990-06-15 | Keyboard |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0407754B1 (en) |
AT (1) | ATE112412T1 (en) |
DE (2) | DE8908429U1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9011181U1 (en) * | 1990-07-30 | 1990-10-04 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Swing-out control unit |
DE9207290U1 (en) * | 1992-05-29 | 1992-07-16 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Push button unit with snap hook arrangement in the push button opening area |
DE29701148U1 (en) * | 1997-01-23 | 1997-04-17 | Bosch-Siemens Hausgeräte GmbH, 81669 München | Push button |
DE19739575C2 (en) * | 1997-09-10 | 2003-10-16 | Aeg Hausgeraete Gmbh | Function block, in particular key block, for the control surface of a device and control surface of a device with such a function block |
KR19990018549U (en) * | 1997-11-12 | 1999-06-05 | 전주범 | Cushion pad of control panel for car audio |
ATE412969T1 (en) * | 2000-07-05 | 2008-11-15 | Niko | CONTACT ACTUATOR |
DE10349592B4 (en) * | 2003-03-05 | 2009-06-25 | Electrolux Home Products Corp. N.V. | Keypad for insertion into a panel and mounting arrangement of a keypad on a panel |
DE10309516B3 (en) * | 2003-03-05 | 2004-11-25 | Electrolux Home Products Corporation N.V. | Control button block incorporated in operating panel for domestic appliance e.g. cooking hob or baking oven, has return spring for each button cover guided via elastomer frame attached to operating panel |
DE10309515B3 (en) * | 2003-03-05 | 2005-02-03 | Electrolux Home Products Corporation N.V. | Push-button block for glass control panel of domestic cooking appliance, has spring element between each push-button cap and guide frame providing resetting force for push-button cap and operating element |
DE102008038567B4 (en) | 2008-08-20 | 2018-08-16 | Leopold Kostal Gmbh & Co. Kg | Arrangement of interconnected actuators for pushbuttons or pressure switches |
DE102008038568B4 (en) * | 2008-08-20 | 2017-07-20 | Leopold Kostal Gmbh & Co. Kg | Arrangement of several actuators for pushbuttons or pressure switches, as well as device with such an arrangement |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4163883A (en) * | 1977-12-30 | 1979-08-07 | Texas Instruments Incorporated | Keyboard with illuminated keys |
US4315114A (en) * | 1980-03-24 | 1982-02-09 | International Telephone And Telegraph Corporation | Keyboard switch assembly |
DE3041186C2 (en) * | 1980-09-13 | 1984-03-29 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Pushbutton arrangement in an electrical communications engineering device |
DE3607689A1 (en) * | 1986-03-08 | 1987-09-17 | Telefonbau & Normalzeit Gmbh | Push button of relatively large width |
DE8714217U1 (en) * | 1987-10-26 | 1987-12-23 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | Keycap for a keyboard |
-
1989
- 1989-07-11 DE DE8908429U patent/DE8908429U1/en not_active Expired
-
1990
- 1990-06-15 EP EP90111268A patent/EP0407754B1/en not_active Expired - Lifetime
- 1990-06-15 DE DE59007311T patent/DE59007311D1/en not_active Expired - Fee Related
- 1990-06-15 AT AT90111268T patent/ATE112412T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE112412T1 (en) | 1994-10-15 |
DE8908429U1 (en) | 1989-08-24 |
DE59007311D1 (en) | 1994-11-03 |
EP0407754A3 (en) | 1991-10-23 |
EP0407754A2 (en) | 1991-01-16 |
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