EP0572993A1 - Electrical switch - Google Patents
Electrical switch Download PDFInfo
- Publication number
- EP0572993A1 EP0572993A1 EP93108834A EP93108834A EP0572993A1 EP 0572993 A1 EP0572993 A1 EP 0572993A1 EP 93108834 A EP93108834 A EP 93108834A EP 93108834 A EP93108834 A EP 93108834A EP 0572993 A1 EP0572993 A1 EP 0572993A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- switching
- spring
- electrical switching
- electrical
- 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.)
- Withdrawn
Links
- 238000010137 moulding (plastic) Methods 0.000 claims abstract 3
- 239000004033 plastic Substances 0.000 claims description 10
- 239000002313 adhesive film Substances 0.000 claims description 4
- 239000002991 molded plastic Substances 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/30—Energy stored by deformation of elastic members by buckling of disc springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5805—Connections to printed circuits
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/80—User interfaces
- E05Y2400/85—User input means
- E05Y2400/852—Sensors
- E05Y2400/854—Switches
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/80—User interfaces
- E05Y2400/85—User input means
- E05Y2400/856—Actuation thereof
- E05Y2400/858—Actuation thereof by body parts, e.g. by feet
- E05Y2400/86—Actuation thereof by body parts, e.g. by feet by hand
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/55—Windows
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/01—Application power window
Definitions
- the invention relates to an electrical switching device, in particular switches or buttons, which is arranged on a circuit board, with fixed contact pieces and at least one movable contact piece and with a switching spring which cooperates with the at least one movable contact piece and is held on the circuit board.
- a switching device which is designed as a button with snap contact and has a low overall height.
- the snap contact is arranged on a printed circuit board in the correct position and function, and is sealed and fixed airtight on the printed circuit board by means of an adhesive film.
- this arrangement behaves similarly to a bellows, so that dust, moist air and the like are sucked into the switching system with each switching operation, unless all-round good adhesive adhesion of the cover film is guaranteed.
- solder residues and dirt and the like act as adhesion preventers, so that the adhesive bond can be interrupted locally.
- the switching spring is integrally connected to the at least one movable contact piece and that a plastic molded part lying on the printed circuit board is provided, in which the fixed contact pieces are arranged and which receives the switching spring.
- the switching spring serves as a movable contact piece.
- a preferred embodiment of the invention provides that at least two switching springs are provided, which are used for the optional contacting of a common fixed contact piece.
- each switching spring has a triangular shape.
- An arrangement of the switching springs, in which the switching springs point towards one another, has proven to be particularly advantageous when it comes to contacting a common fixed contact piece.
- the switching spring is made of a highly conductive spring material and is designed as a self-resetting snap contact.
- the switching spring is curved or it can have a trough-shaped impression, which gives the switching spring a monostable switching behavior.
- the switching springs In order to improve the contacting with the fixed contact pieces, it may be expedient to provide the switching springs with bulges at the points provided for contacting. These bulges can be formed either by appropriate impressions or by molding.
- the switching device according to the invention with all the configurations described above is designed as a short-stroke switching device with a switching travel ⁇ 2 mm.
- a preferred use of the switching device according to the invention can be installed in a multiple switching device, for. B. window switch for motor vehicles may be provided, each switching spring by an actuator, for. B. rocker is acted upon.
- FIG. 1 shows an electrical switching device 10, which is arranged on a printed circuit board 12 and has two switching springs 14 and a molded plastic part 16 with fixed contact pieces 18, 20, 22 held therein.
- the two switching springs 14 are flat and are arranged at a short distance from the fixed contact pieces 18, 20, 22.
- the switching springs 14 are preferably made of highly conductive spring bronze and serve as a movable contact piece.
- the switching springs 14 When the electrical switching device 10 is actuated by depressing one of the switching springs 14, the fixed contact pieces 18, 20, 22 located below the relevant switching spring 14 are connected to one another and thereby one or more circuits are closed. As can also be seen from the illustration in FIG. 1, the switching springs 14 are each curved slightly upward, ie away from the fixed contact pieces, which enables their function as a snap contact. Due to the material-related stiffness of the switching springs 14, these have namely when they are actuated by pressing down in the direction of the fixed contact piece 18, 20, 22, the endeavor to return to their starting position.
- FIG. 2 shows a top view of the electrical switching device shown and described in FIG. 1, in particular the triangular design of the switching springs 14 and their arrangement on the plastic molded part 16.
- the other features shown are designated by the corresponding reference numerals as in FIG. 1.
- the explanations in this regard accordingly also apply to the representation in FIG. 2.
- the attachment of the switching springs 14 on the plastic molded part 16 can be provided in various ways. Either the switch springs 14 are fixed in accordance with the switches of the known type by means of an adhesive film on the plastic molded part 16, the problem of the reduction in liability which arises in the known switches due to solder residues and contaminants not being concerned here, or the switch springs 14 are shaped and / or or firmly anchored in the plastic part 16, for. B. trapped between lateral boundaries.
- Such lateral boundaries can, for. B. on each of the triangular sides of the switching spring 14 on the plastic part 16.
- the triangular edges of the switch springs are each non-positively supported at the limits not shown here, the elasticity inherent in the plastic being used. As a result, slight changes in distance when the switching spring 14 is actuated are irrelevant.
- Another possibility of holding the switching springs 14 may be that the plastic part 16, for. B. also in the region of the triangle hook-like projections are provided on the plastic part 16, between which the switching springs 14 are guided and are held by the hook-shaped projection of the molding.
- FIG. 3 shows a switching device 24 in which the switching device 10 according to the invention known from FIG. 1 or FIG. It is a so-called window switch for installation in motor vehicles.
- a circuit board 12 is inserted in a housing 26, on which, in addition to the two switching devices 10, different paired connecting contacts 28 resistors 30 and light-emitting diodes 32 can be seen.
- the low overall height of the switching device 10 according to the invention proves to be advantageous, since such switches are often accommodated in the door trim of the motor vehicles, where, due to the design, there are only small installation depths and switches installed there may only have small overall heights.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Tumbler Switches (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Die Erfindung betrifft ein elektrisches Schaltgerät, insbesondere Schalter oder Taster, welches auf einer Leiterplatte angeordnet ist, mit festen Kontaktstücken und wenigstens einem beweglichen Kontaktstück sowie mit einer Schaltfeder, die mit dem wenigstens einen beweglichen Kontaktstück zusammenarbeitet und an der Leiterplatte gehalten ist.The invention relates to an electrical switching device, in particular switches or buttons, which is arranged on a circuit board, with fixed contact pieces and at least one movable contact piece and with a switching spring which cooperates with the at least one movable contact piece and is held on the circuit board.
Es ist ein Schaltgerät vorgeschlagen worden, das als Taster mit Sprungkontakt ausgebildet ist und eine geringe Bauhöhe aufweist. Hierbei ist der Sprungkontakt auf einer Leiterplatte lage- und funktionsgerecht angeordnet und mittels einer Klebefolie luftdicht auf der Leiterplatte abgeklebt und fixiert. Bei Betätigung des Sprungkontaktes verhält sich diese Anordnung ähnlich einem Blasebalg, so daß bei jedem Schaltvorgang Staub, feuchte Luft und ähnliches in das Schaltsystem eingesaugt werden, sofern nicht eine allseits umschließende gute Klebehaftung der Abdeckfolie gewährleistet ist. Hierin liegt das Problem der beschriebenen Anordnung, da die Anbringung des Sprungkontaktes sowie der diesem fixierenden Klebefolie erst nach Fertigmontage der Leiterplatte erfolgen kann. Hierbei wirken Lötrückstände sowie Verschmutzungen und ähnliches als Haftverhinderer, so daß die Klebehaftung örtlich unterbrochen sein kann.A switching device has been proposed which is designed as a button with snap contact and has a low overall height. In this case, the snap contact is arranged on a printed circuit board in the correct position and function, and is sealed and fixed airtight on the printed circuit board by means of an adhesive film. When the snap contact is actuated, this arrangement behaves similarly to a bellows, so that dust, moist air and the like are sucked into the switching system with each switching operation, unless all-round good adhesive adhesion of the cover film is guaranteed. Herein lies the problem of the arrangement described, since the attachment of the Jump contact and the adhesive film that fixes this can only take place after the printed circuit board has been fully assembled. In this case, solder residues and dirt and the like act as adhesion preventers, so that the adhesive bond can be interrupted locally.
Ungünstig ist hierbei auch, daß der Sprungkontakt auf der Kupferschicht der Leiterplatte aufliegt und diese infolge der Schaltbewegung des Sprungkontaktes infolge Reibverschleiß stetig abgetragen wird. Hierdurch entstehen hohe Übergangswiderstände, welche sich nachteilig auf die Schaltleistung des Schaltgerätes auswirken.It is also unfavorable here that the snap contact rests on the copper layer of the printed circuit board and that this is continuously removed due to the switching movement of the snap contact due to frictional wear. This creates high contact resistances, which have a negative impact on the switching capacity of the switching device.
Ausgehend vom vorstehend beschriebenen Stand der Technik ist es daher Aufgabe der Erfindung ein Schaltgerät der eingangs genannten Art zu schaffen, das unter Beibehaltung des Schaltprinzips und der geringen Bauhöhe einfach gestaltet und kostengünstig herstellbar ist und die aufgezeigten Nachteile vermeidet.Starting from the prior art described above, it is therefore an object of the invention to provide a switching device of the type mentioned which is simple in design and inexpensive to manufacture while maintaining the switching principle and the low overall height, and avoids the disadvantages indicated.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Danach ist vorgesehen, daß die Schaltfeder einstückig mit dem wenigstens einen beweglichen Kontaktstück verbunden ist und daß ein auf der Leiterplatte aufliegendes Kunststofformteil vorgesehen ist, in welchem die festen Kontaktstücke angeordnet sind und welches die schaltfeder aufnimmt.This object is achieved by the characterizing features of claim 1. Thereafter, it is provided that the switching spring is integrally connected to the at least one movable contact piece and that a plastic molded part lying on the printed circuit board is provided, in which the fixed contact pieces are arranged and which receives the switching spring.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, daß die Schaltfeder als bewegliches Kontaktstück dient.According to a preferred embodiment of the invention, it is provided that the switching spring serves as a movable contact piece.
Eine bevorzugte Ausführungsform der Erfindung sieht vor, daß wenigstens zwei Schaltfedern vorgesehen sind, die zur wahlweisen Kontaktierung eines gemeinsamen festen Kontaktstückes dienen.A preferred embodiment of the invention provides that at least two switching springs are provided, which are used for the optional contacting of a common fixed contact piece.
Eine zweckmäßige Ausgestaltung der Erfindung-sieht vor, daß jede Schaltfeder Dreieckform aufweist. Dabei erweist sich eine Anordnung der Schaltfedern, bei der die Schaltfedern mit ihren Spitzen aufeinander zu gerichtet sind als besonders günstig, wenn es um die Kontaktierung eines gemeinsamen festen Kontaktstückes geht.An expedient embodiment of the invention provides that each switching spring has a triangular shape. An arrangement of the switching springs, in which the switching springs point towards one another, has proven to be particularly advantageous when it comes to contacting a common fixed contact piece.
Vorteilhafterweise besteht die Schaltfeder gut leitfähigem Federwerkstoff und ist als selbstrückstellender Sprungkontakt ausgebildet. Hierzu ist die Schaltfeder gewölbt oder sie kann eine muldenförmige Einprägung aufweisen, die der Schaltfeder ein monostabiles Schaltverhalten verleiht.Advantageously, the switching spring is made of a highly conductive spring material and is designed as a self-resetting snap contact. For this purpose, the switching spring is curved or it can have a trough-shaped impression, which gives the switching spring a monostable switching behavior.
Um die Kontaktierung mit den festen Kontaktstücken zu verbessern, kann es zweckmäßig sein, die Schaltfedern an den zur Kontaktierung vorgesehenen Stellen mit Auswölbungen zu versehen. Diese Auswölbungen können entweder durch entsprechende Einprägungen oder durch Anformungen gebildet sein.In order to improve the contacting with the fixed contact pieces, it may be expedient to provide the switching springs with bulges at the points provided for contacting. These bulges can be formed either by appropriate impressions or by molding.
Das erfindungsgemäße Schaltgerät mit allen den vorstehend beschriebenen Ausgestaltungen ist als Kurzhub-Schaltgerät mit einem Schaltweg ≦ 2 mm ausgebildet. Eine bevorzugte Verwendung des erfindungsgemäßen Schaltgerätes kann durch Einbau in einem Mehrfachschaltgerät, z. B. Fensterheberschalter für Kraftfahrzeuge, vorgesehen sein, wobei jede Schaltfeder von einem Betätigungselement, z. B. Wippe, beaufschlagbar ist.The switching device according to the invention with all the configurations described above is designed as a short-stroke switching device with a switching travel ≦ 2 mm. A preferred use of the switching device according to the invention can be installed in a multiple switching device, for. B. window switch for motor vehicles may be provided, each switching spring by an actuator, for. B. rocker is acted upon.
Diese und weitere vorteilhafte Ausgestaltungen sind Gegenstände der Unteransprüche.These and other advantageous configurations are the subject of the dependent claims.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles sollen die Erfindung, vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Based on an embodiment shown in the drawing, the invention, advantageous embodiments and improvements of the invention are explained and described in more detail.
Es zeigen:
- Figur 1
- ein erfindungsgemäßes schaltgerät in Seitenansicht,
- Figur 2
- das Schaltgerät nach Figur 1 in Draufsicht,
- Figur 3
- ein Mehrfach-Schaltgerät mit darin integriertem Schaltgerät nach Figur 2.
- Figure 1
- a switching device according to the invention in side view,
- Figure 2
- 1 in top view,
- Figure 3
- a multiple switching device with switching device integrated therein according to Figure 2.
In Figur 1 ist ein elektrisches Schaltgerät 10 gezeigt, welches auf einer Leiterplatte 12 angeordnet ist und zwei Schaltfedern 14 sowie ein Kunststofformteil 16 mit darin gehaltenen festen Kontaktstücken 18, 20, 22 aufweist. Die beiden Schaltfedern 14 sind flächig ausgebildet und in geringem Abstand zu den festen Kontaktstücken 18, 20, 22 angeordnet.1 shows an
Die Schaltfedern 14 bestehen vorzugsweise aus gut leitfähiger Federbronze und dienen als bewegliches Kontaktstück.The switching
Bei Betätigung des elektrischen Schaltgerätes 10 durch Niederdrücken einer der Schaltfedern 14 werden die unterhalb der betreffenden Schaltfeder 14 befindlichen festen Kontaktstücke 18, 20, 22 miteinander verbunden und hierdurch ein oder mehrere Stromkreise geschlossen. Wie der Darstellung in Figur 1 ferner zu entnehmen ist, sind die Schaltfedern 14 jeweils leicht nach oben, d. h. von den festen Kontaktstücken weg, gewölbt, wodurch ihre Funktion als Sprungkontakt ermöglicht ist. Aufgrund der materialbedingten Formsteifigkeit der Schaltfedern 14 haben diese nämlich bei ihrer Betätigung durch Niederdrücken in Richtung der festen Kontaktstück 18, 20, 22 das Bestreben, wieder in ihre Ausgangsstellung zu gelangen.When the
In Figur 2 ist das in Figur 1 darstellte und beschriebene elektrische Schaltgerät in Draufsicht wiedergegeben, wobei insbesondere die dreieckförmige Gestaltung der Schaltfedern 14 sowie ihre Anordnung auf dem Kunststofformteil 16 zu erkennen ist. Die weiteren dargestellten Merkmale sind mit den entsprechenden Bezugsziffern wie in Figur 1 bezeichnet. Die diesbezüglichen Erläuterungen gelten demgemäß auch für die Darstellung in Figur 2. Die Befestigung der Schaltfedern 14 auf dem Kunststofformteil 16 kann auf verschiedene Weise vorgesehen sein. Entweder werden die Schaltfedern 14 entsprechend den Schaltern der bekannten Art mittels einer Klebefolie auf dem Kunststofformteil 16 fixiert, wobei das bei den bekannten Schaltern auftretende Problem der Haftungsminderung infolge von Lötrückständen und Verunreinigungen hier nicht zu besorgen ist, oder die Schaltfedern 14 werden form- und/oder kraftschlüssig in dem Kunststoffteil 16 verankert, z. B. zwischen seitlichen Begrenzungen eingeklemmt. Derartige seitliche Begrenzungen können z. B. an jeder der Dreieckseiten der Schaltfeder 14 am Kunststoffteil 16 angeformt sein. Dabei stützen sich die Dreieckkanten der Schaltfedern jeweils an den hier nicht näher dargestellten Begrenzungen kraftschlüssig ab, wobei die dem Kunststoff innewohnende Elastizität genutzt wird. Hierdurch sind geringfügige Abstandsänderungen bei Betätigung der Schaltfeder 14 unbeachtlich. Eine andere Möglichkeit der Halterung der Schaltfedern 14 kann darin bestehen, daß an dem Kunststoffteil 16, z. B. ebenfalls im Bereich der Dreiecksseiten hakenähnliche Anformungen am Kunststoffteil 16 vorgesehen sind, zwischen denen die Schaltfedern 14 geführt sind und durch den hakenförmigen Vorsprung der Anformung gehalten sind.FIG. 2 shows a top view of the electrical switching device shown and described in FIG. 1, in particular the triangular design of the
In Figur 3 ist ein Schaltgerät 24 gezeigt, in welchem das aus Figur 1 bzw. Figur 2 bekannte erfindungsgemäße Schaltgerät 10 eingebaut ist. Es handelt sich hierbei um einen sog. Fensterheberschalter zum Einbau in Kraftfahrzeugen. In einem Gehäuse 26 ist eine Leiterplatte 12 eingelegt, auf welcher außer den beiden Schaltgeräten 10 verschiedene paarweise angeordnete Anschlußkontakte 28 Widerstände 30 und Leuchtdioden 32 zu erkennen sind.FIG. 3 shows a
Insbesondere bei diesem Anwendungsfall erweist sich die geringe Bauhöhe des erfindungsgemäßen Schaltgerätes 10 als vorteilhaft, da derartige Schalter häufig in der Türverkleidung der Kraftfahrzeuge untergebracht werden, wo konstruktionsbedingt nur geringe Montagetiefen bestehen und dort installierte Schalter nur geringe Bauhöhen aufweisen dürfen.In this application in particular, the low overall height of the
Claims (14)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924218545 DE4218545A1 (en) | 1992-06-05 | 1992-06-05 | Electrical switching device |
| DE4218545 | 1992-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0572993A1 true EP0572993A1 (en) | 1993-12-08 |
Family
ID=6460451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93108834A Withdrawn EP0572993A1 (en) | 1992-06-05 | 1993-06-02 | Electrical switch |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0572993A1 (en) |
| DE (1) | DE4218545A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2515315A1 (en) * | 2011-04-22 | 2012-10-24 | Alps Electric Co., Ltd. | Movable contact member and switch device using movable contact member |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541380A1 (en) * | 1995-11-07 | 1997-05-15 | Teves Gmbh Alfred | Switches with switch modules snapped onto the circuit board |
| DE19713769C1 (en) * | 1997-04-03 | 1998-06-10 | Hermann Kohn | Electric pushbutton switch e.g. for computer keyboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2455522A1 (en) * | 1973-11-27 | 1975-06-05 | Gte Atea N V S A | PRESSURE SWITCHES AND ITS APPLICATION IN A PUSH BUTTON SELECTION SWITCH UNIT FOR TELEVISIONS |
| DE2705756A1 (en) * | 1977-02-11 | 1978-08-17 | Alps Electric Co Ltd | Push button switch for desk computer - has frame with contact bracket attached to holder and centre disc section curved from base |
| DE2931370A1 (en) * | 1979-08-02 | 1981-02-05 | Petrick Gmbh Elektro Mech | Double action multicontact tumbler switch - has first bridging leaf spring depressed onto second springs under first and further pressure |
| US4331851A (en) * | 1980-06-16 | 1982-05-25 | Texas Instruments Incorporated | Printed circuit board having data input devices mounted thereon and input devices therefor |
| GB2229577A (en) * | 1989-03-23 | 1990-09-26 | Well Treasure Ind Ltd | Mounting contact elements on printed circuit boards |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1308692A (en) * | 1970-04-01 | 1973-02-21 | Sumlock Anita Electronics Ltd | Electrical switches |
| DE7130971U (en) * | 1971-08-12 | 1971-11-25 | Sachsse L | Switch assembly for printed circuits |
| DE2848588C2 (en) * | 1978-11-09 | 1982-09-09 | Daut & Rietz KG Fabrik für Elektrofeinmechanik GmbH & Co, 8500 Nürnberg | Touch button |
| DE7837597U1 (en) * | 1978-12-19 | 1979-04-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Keypad with several push buttons |
| DE3520211A1 (en) * | 1985-06-05 | 1986-12-11 | Elektronikus Mérökészülékek Gyára, Budapest | Switching element having three contact points |
| JPH0350585Y2 (en) * | 1985-11-07 | 1991-10-29 | ||
| DE3613704A1 (en) * | 1986-04-23 | 1987-10-29 | Bsg Schalttechnik | Stepping switch |
-
1992
- 1992-06-05 DE DE19924218545 patent/DE4218545A1/en not_active Withdrawn
-
1993
- 1993-06-02 EP EP93108834A patent/EP0572993A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2455522A1 (en) * | 1973-11-27 | 1975-06-05 | Gte Atea N V S A | PRESSURE SWITCHES AND ITS APPLICATION IN A PUSH BUTTON SELECTION SWITCH UNIT FOR TELEVISIONS |
| DE2705756A1 (en) * | 1977-02-11 | 1978-08-17 | Alps Electric Co Ltd | Push button switch for desk computer - has frame with contact bracket attached to holder and centre disc section curved from base |
| DE2931370A1 (en) * | 1979-08-02 | 1981-02-05 | Petrick Gmbh Elektro Mech | Double action multicontact tumbler switch - has first bridging leaf spring depressed onto second springs under first and further pressure |
| US4331851A (en) * | 1980-06-16 | 1982-05-25 | Texas Instruments Incorporated | Printed circuit board having data input devices mounted thereon and input devices therefor |
| GB2229577A (en) * | 1989-03-23 | 1990-09-26 | Well Treasure Ind Ltd | Mounting contact elements on printed circuit boards |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2515315A1 (en) * | 2011-04-22 | 2012-10-24 | Alps Electric Co., Ltd. | Movable contact member and switch device using movable contact member |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4218545A1 (en) | 1993-12-09 |
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