EP0458166B1 - Contact device for a switch - Google Patents
Contact device for a switch Download PDFInfo
- Publication number
- EP0458166B1 EP0458166B1 EP91107758A EP91107758A EP0458166B1 EP 0458166 B1 EP0458166 B1 EP 0458166B1 EP 91107758 A EP91107758 A EP 91107758A EP 91107758 A EP91107758 A EP 91107758A EP 0458166 B1 EP0458166 B1 EP 0458166B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wrap spring
- leg
- spring
- guide wall
- leaf spring
- 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
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
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- 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
- H01H2001/5816—Connections to flexible or curved printed circuit boards
Definitions
- the invention relates to a contact device for a switch which is used in a device for recognizing the input or removal of a flat body, for example a data carrier, is arranged on the opposite side of a wall of the device which guides the flat body and which has a gripping through the guide wall Actuator is assigned.
- the data carriers can be counted in the simplest case or, for example, in order to be able to display the degree of use of a data card, the respective plugs can be stored in its memory, or means of transport can be switched on or off and control and reading - and registration means brought in and out of action.
- An example of this is tachographs, in which the chart disks serving as recording media are entered through a slot on the front and are automatically transported to the registration position, however, the registration organs may only touch the chart disk when the latter is correctly positioned in the device.
- the switch in question has the task of controlling the registration of a suitable marking on the diagram chart in question in the event of repeated removal / input, which is absolutely necessary for driver changes and police checks.
- the generic devices also include self-cashing or money-dispensing devices in which banknotes, coins, credit cards, tokens or other valuables are used.
- ticket issuers and validators, receipt printers and receipts or other devices that process printed matter such as those with memory cartridges for data transport or those in which identity or authorization cards only have a key function.
- the task is to design a galvanic switch in such a way that it meets high requirements for functional reliability and series production capability and can be used universally due to the small space requirement.
- the solution found is by placing the two contact springs forming the switch in one directly on the data carrier leading wall shaped brackets can be used and a solderless connection with a conduction band is provided, production technology optimized and thus can be realized with very little effort.
- the advantage in terms of production technology is particularly given by the fact that the function of the preferably wire-tape contact combination is largely independent of tolerance. The space requirement is also considerably reduced, and several switches or a switch field can be formed in a simple manner.
- the contact springs point to one another when making contact by the wire-shaped leg of the wrap spring cooperating with the angled end of the leaf spring.
- the arrangement of the contact springs is such that when the switch is actuated there is a sliding effect between the contact springs. This ensures that the contact springs are automatically cleaned each time the contact is made.
- a particularly original embodiment which is expedient in particular for less rigid data carriers, also consists in providing a roller as the actuating element and mounting it rotatably directly on the contacting leg of the contact spring of the switch, which is designed as a wrap spring.
- FIG. 1 represents a tachograph, which has a housing 1, a front screen 2, which covers the display means located in a window cutout 3 of the front wall 4 of the housing 1, and input / removal slots 5, 6 accessible from the front is designed as an autonomous device for the diagram disks 7 used by the driver and front passenger as record carriers or data carriers, which allows a modular use and flush-mounted installation in the dashboard of a motor vehicle.
- Numeral 8 in FIG. 1 denotes a dial which covers the window cutout 3 of the housing 1 and in whose cup-shaped recess 9 pointers for the vehicle speed, the engine speed and the time display are arranged in a manner not known per se. Adjustment buttons, one of which is shown in FIGURE 1 and labeled 10, serve for the driver-related selection of different types of working time.
- 11 with a holder is designated, which is combined with 12, 13 and 14, 15 to form a frame forming two shafts 16 and 17 and fastened in the housing 1 of the tachograph. Through openings, not specified, in the guide walls 12, 13 and 14, 15, transport pairs and counterpressure roller pairs 18, 19 and 20, 21 associated therewith engage.
- FIGURE 1 further shows that the input and removal slots 5, 6 are followed by cylindrical rods 22, 23 and 24, 25, which serve as sealing bodies and are radially displaceably mounted in the recesses 26 and 27 provided in the holder 11.
- Each of the shafts 16 and 17 is assigned a switch 28 and 29, which each have an actuator, in this case a roller 30 or 31, in the respective shaft 16 or 17 and thus engages in the path of movement of the diagram disks.
- one contact element of the switch 28 shown in FIGURE 2 is designed as a leaf spring 32, while the other contact element is formed by a wrap spring 33. Both contact elements are held without additional fastening means in scenes formed on the guide wall 12 of the shaft 16, in such a way that a geometric plane perpendicular to the guide wall 12, in which the contacting leg 34 of the wrap spring 33 lies, cuts the leaf spring 32 in the longitudinal direction .
- a pin 35 formed on the guide wall 12 and parallel to the wall is provided for receiving the wrap spring 33 or the wrap spring winding.
- the contacting leg 34 which extends essentially parallel to the guide wall 12, is guided in a slot 36 which is formed in a cheek 37 formed on the guide wall 12.
- the non-contacting leg 38 of the wrap spring 33 which can be seen more clearly from FIG. 3, is formed into a claw 39 and held in a pocket 40 which is formed in a wall projection 41.
- the leaf springs 32 which are suitably shaped for resilient self-retention, are each associated with bearing blocks 42 and 43 molded on the guide wall 12 and a bridge 44.
- a pocket 46 is assigned to an arm 45 formed on the leaf spring 32 in the wall projection 41.
- the arm 45 of the leaf spring 32 is shaped in the same way as the leg 38 of the wrap spring 33 into a claw 47, the ends of the claws 39 and 47 lying essentially in a line in the installed state and engaging in the insertion path of a flexible conduit band 48.
- the conduction band 48 is at least laterally by suitably lowering the wall projection 41 between the guide wall 12 and the wall projection 41 guided and is secured against pulling out by the barb function of the claws 39 and 47, which dig into the conduction band 48 when the conduction band 48 is inserted.
- contact is made between the contact elements of the switch 28, the leaf spring 32 and the wrap spring 33 and conductor tracks 49 and 50, which are embedded in the conduction band 48, the ends of the conductor tracks 49 and 50 being widened for the purpose of reliable contacting.
- the switch 28 is in the non-actuated state, i. H. there is no diagram disk in the shaft 16, and the contacting leg 34 is lifted off the preferably angled end 51 of the leaf spring 32.
- the roller 30 provided in the preferred embodiment as an actuator and supported according to the invention on the contacting leg 34 rests under the action of the wrap spring 33 on the base of a depression 52 in the guide wall 13.
- the roller 30 engages through an opening 53 in the guide wall 12 in the shaft 16 and is guided on the one hand by the cheek 37 and on the other hand by counter bearings 54 and 55. With 56 a molded on the guide wall 12 base is designated.
- the actuator in particular if greater forces and correspondingly rigid data carriers, for example data cards, are used in the device in question, can be wedge-shaped and can be displaceably mounted.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Push-Button Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
- Contacts (AREA)
Description
Die Erfindung betrifft eine Kontakteinrichtung für einen Schalter, welcher in einem Gerät dem Erkennen der Eingabe bzw. der Entnahme eines flachen Körpers, beispielsweise eines Datenträgers dient, auf der Gegenseite einer den flachen Kösper führenden Wand des Gerätes angeordnet ist und welchem ein durch die Führungswand hindurchgreifendes Betätigungsglied zugeordnet ist.The invention relates to a contact device for a switch which is used in a device for recognizing the input or removal of a flat body, for example a data carrier, is arranged on the opposite side of a wall of the device which guides the flat body and which has a gripping through the guide wall Actuator is assigned.
Bei Datenerfassungsgeräten im weitesten Sinne, d. h. bei Datenerfassungsgeräten, bei denen die Dateneingabe und/oder die Datenausgabe mittels mehr oder weniger dicken, jedoch flachen und eine gewisse Steifigkeit aufweisenden Datenträgern erfolgt, sind unter Umständen mehrere, einem Führungsschacht oder einer in der Regel schlitzförmigen Eingabe-/Entnahmeöffnung zugeordnete Schalter vorgesehen, die dem Abtasten und Erkennen einer Eingabe oder einer Ausgabe und Entnahme eines Datenträgers dienen.For data acquisition devices in the broadest sense, i.e. H. In the case of data acquisition devices in which the data input and / or the data output is carried out by means of data carriers which are more or less thick but flat and have a certain rigidity, there may be several switches associated with a guide shaft or a slot-shaped input / removal opening, which serve to scan and recognize an input or an output and removal of a data carrier.
Mit einer solchen Erkennungsfunktion kann im einfachsten Falle ein Zählen der Datenträger bewirkt oder, um beispielsweise den Benutzungsgrad einer Datenkarte anzeigen zu können, in deren Speicher ein Abspeichern der jeweiligen Steckungen vorgenommen werden, oder es werden Transportmittel ein- bzw. ausgeschaltet sowie Kontroll-, Lese- und Registriermittel in und außer Wirklage gebracht. Als Beispiel hierfür seien Fahrtschreiber genannt, bei denen die als Aufzeichnungsträger dienenden Diagrammscheiben durch einen frontseitigen Schlitz eingegeben und selbsttätig in Registrierposition transportiert werden, dabei jedoch erst eine Berührung der Registrierorgane mit der Diagrammscheibe erfolgen darf, wenn letztere in dem Gerät zeitrichtig positioniert ist.
Außerdem hat der betreffende Schalter die Aufgabe, bei wiederholter Entnahme/Eingabe, die bei Fahrerwechsel und Polizeikontrollen zwingend erforderlich ist, das Registrieren einer geeigneten Markierung auf der betreffenden Diagrammscheibe zu steuern.With such a recognition function, the data carriers can be counted in the simplest case or, for example, in order to be able to display the degree of use of a data card, the respective plugs can be stored in its memory, or means of transport can be switched on or off and control and reading - and registration means brought in and out of action. An example of this is tachographs, in which the chart disks serving as recording media are entered through a slot on the front and are automatically transported to the registration position, however, the registration organs may only touch the chart disk when the latter is correctly positioned in the device.
In addition, the switch in question has the task of controlling the registration of a suitable marking on the diagram chart in question in the event of repeated removal / input, which is absolutely necessary for driver changes and police checks.
Unter den gattungsgemäß genannten Geräten sind auch selbstkassierende oder Geld ausgebende Geräte, bei denen Geldscheine, Münzen, Kreditkarten, Wertmarken oder sonstige Wertkörper Anwendung finden, zu verstehen. Ebenso sind Fahrausweisgeber und Entwerter, Quittungsdrucker und Belege oder sonstiges Druckgut verarbeitende Geräte, solche mit Speicherkassetten für den Datentransport oder solche, bei denen Identitäts- bzw. Berechtigungsausweise lediglich eine Schlüsselfunktion aufweisen, zu nennen.The generic devices also include self-cashing or money-dispensing devices in which banknotes, coins, credit cards, tokens or other valuables are used. Likewise, ticket issuers and validators, receipt printers and receipts or other devices that process printed matter, such as those with memory cartridges for data transport or those in which identity or authorization cards only have a key function.
Wesentlich ist, daß derartige, eine Sensorfunktion ausübende Schalter in jedem Milieu, insbesondere auch außerhalb geschlossener Räume, z. B. in Fahrzeugen, in Park-, Telefon- oder Tankautomaten, zuverlässig arbeiten und mit einem geringen Aufwand seriengerecht herstellbar und montierbar sind.It is essential that such a sensor function switches in any milieu, especially outside of closed rooms, for. B. in vehicles, in parking, telephone or fuel dispensers, work reliably and can be produced and assembled in series with little effort.
Der Einsatz von Lichtschranken ist zwar denkbar, aber nicht in allen Fällen angemessen, da Lichtschranken eine relativ teure Handelsware darstellen und, abgesehen von der erforderlichen Dauerbestromung, Funktionsrisiken durch Verschmutzen beinhalten.The use of light barriers is conceivable, but not appropriate in all cases, since light barriers are a relatively expensive commodity and, apart from the required constant current, involve functional risks due to contamination.
Somit ist die Aufgabe gestellt, einen galvanischen Schalter derart auszubilden, daß er hohen Anforderungen an Funktionssicherheit und Serienfertigungsfähigkeit gerecht wird und durch geringen Raumbedarf universell verwendbar ist.Thus, the task is to design a galvanic switch in such a way that it meets high requirements for functional reliability and series production capability and can be used universally due to the small space requirement.
Die Aufgabe wird durch die in Anspruch 1 aufgeführten Merkmale gelöst.The object is achieved by the features listed in claim 1.
Vorteilhafte Ausgestaltungen der Erfindung beschreiben die Unteransprüche.Advantageous embodiments of the invention describe the subclaims.
Die gefundene Lösung ist, indem die beiden den Schalter bildenden Kontaktfedern in unmittelbar an einer den Datenträger führenden Wand ausgeformten Halterungen einsetzbar sind und eine lötfreie Verbindung mit einem Leitungsband vorgesehen ist, fertigungstechnisch optimiert und somit mit einem sehr geringen Aufwand realisierbar. Der fertigungstechnische Vorteil ist insbesondere auch dadurch gegeben, daß die Funktion der vorzugsweise Draht-Band-Kontaktkombination weitgehend toleranzunabhängig ist. Auch der Raumbedarf ist erheblich reduziert, und es können auf einfache Weise mehrere Schalter bzw. ein Schalterfeld ausgebildet werden.The solution found is by placing the two contact springs forming the switch in one directly on the data carrier leading wall shaped brackets can be used and a solderless connection with a conduction band is provided, production technology optimized and thus can be realized with very little effort. The advantage in terms of production technology is particularly given by the fact that the function of the preferably wire-tape contact combination is largely independent of tolerance. The space requirement is also considerably reduced, and several switches or a switch field can be formed in a simple manner.
Vorteilhaft ist ferner, daß, ohne eigentliche Kontakte vorzusehen, die Kontaktfedern bei der Kontaktgabe einander punktförmig berühren, indem der drahtförmige Schenkel der Schlingfeder mit dem angewinkelten Ende der Blattfeder zusammenwirkt. Außerdem ist die Anordnung der Kontaktfedern derart getroffen ist, daß beim Betätigen des Schalters eine Gleitwirkung zwischen den Kontaktfedern erfolgt. Dadurch wird bei jeder Kontaktgabe eine selbsttätige Reinigung der Kontaktfedern erzielt. Eine besonders originelle und insbesondere für weniger steife Datenträger zweckmäßige Ausführungsform besteht ferner darin, als Betätigungsglied eine Rolle vorzusehen und diese unmittelbar auf dem kontaktgebenden Schenkel der als Schlingfeder ausgebildeten Kontaktfeder des Schalters drehbar zu lagern.It is also advantageous that, without providing actual contacts, the contact springs point to one another when making contact by the wire-shaped leg of the wrap spring cooperating with the angled end of the leaf spring. In addition, the arrangement of the contact springs is such that when the switch is actuated there is a sliding effect between the contact springs. This ensures that the contact springs are automatically cleaned each time the contact is made. A particularly original embodiment, which is expedient in particular for less rigid data carriers, also consists in providing a roller as the actuating element and mounting it rotatably directly on the contacting leg of the contact spring of the switch, which is designed as a wrap spring.
Im folgenden sei die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen
- FIGUR 1 eine schematisierte, teilweise Seitenansicht eines Fahrtschreibers mit frontseitigen Eingabe-/Entnahmeschlitzen für die als Aufzeichnungsträger dienenden Diagrammscheiben,
FIGUR 2 einen Ausschnitt eines Diagrammscheiben-Führungsschachtes gemäß der Schnittlinie I in FIGUR 1 mit einer Draufsicht der erfindungsgemäßen Kontakteinrichtung in einem gegenüber FIGUR 1 vergrößerten Maßstab undFIGUR 3 einen Schnitt der Kontakteinrichtung gemäß der Schnittlinie II-II inFIGUR 2, gegenüber FIGUR 2 jedoch in einem nicht betätigten Zustand.
- 1 shows a schematic, partial side view of a tachograph with front-side input / removal slots for the diagram disks serving as recording media,
- FIGURE 2 shows a section of a diagram disk guide shaft according to section line I in FIGURE 1 with a plan view of the contact device according to the invention on a larger scale than FIGURE 1 and
- FIGURE 3 is a section of the contact device according to the Section line II-II in FIGURE 2, but compared to FIGURE 2 in an unactuated state.
Die schematisierte, teilweise Seitenansicht FIGUR 1 stellt einen Fahrtschreiber dar, welcher mit einem Gehäuse 1, mit einer Frontscheibe 2, welche die in einem Fensterausschnitt 3 der Frontwand 4 des Gehäuses 1 befindlichen Anzeigemittel abdeckt, und mit frontseitig zugänglichen Eingabe-/Entnahmeschlitzen 5, 6 für die von Fahrer und Beifahrer als Aufzeichnungsträger bzw. Datenträger verwendeten Diagrammscheiben 7 als autonomes Gerät ausgebildet ist, welches eine bausteinartige Verwendung und einen frontflächenbündigen Einbau im Armaturenbrett eines Kraftfahrzeuges gestattet.The schematic, partial side view of FIG. 1 represents a tachograph, which has a housing 1, a
Mit 8 ist in FIGUR 1 ein Zifferblatt bezeichnet, das den Fensterausschnitt 3 des Gehäuses 1 abdeckt und in dessen topfförmige Vertiefung 9 in an sich bekannter Weise nicht dargestellte Zeiger für die Fahrzeuggeschwindigkeit, die Motordrehzahl und die Zeitanzeige angeordnet sind. Einstellknöpfe, von denen in FIGUR 1 einer dargestellt und mit 10 bezeichnet ist, dienen dem fahrerbezogenen Anwählen verschiedener Arbeitszeitarten. Mit 11 ist ein Halter bezeichnet, der mit 12, 13 und 14, 15 zu einem zwei Schächte 16 und 17 bildenden Gestell zusammengefügt und in dem Gehäuse 1 des Fahrtschreibers befestigt ist. Durch nicht näher bezeichnete Öffnungen in den Führungswänden 12, 13 und 14, 15 greifen Transport- und diesen zugeordnete Gegendruckrollenpaare 18, 19 und 20, 21 ein.Numeral 8 in FIG. 1 denotes a dial which covers the
Ferner zeigt FIGUR 1, daß den Eingabe- bzw. Entnahmeschlitzen 5, 6 zylindrische Stangen 22, 23 und 24, 25 nachgeordnet sind, die als Dichtkörper dienen und in in dem Halter 11 vorgesehenen Freisparungen 26 und 27 radial verschiebbar gelagert sind.FIGURE 1 further shows that the input and
Jedem der Schächte 16 und 17 ist ein Schalter 28 und 29 zugeordnet, welcher mit jeweils einem Betätigungsglied, in diesem Falle einer Rolle 30 bzw. 31, in den jeweiligen Schacht 16 bzw. 17 und somit in die Bewegungsbahn der Diagrammscheiben eingreift.Each of the
Wie die FIGUR 2 zeigt, ist das eine Kontaktelement des in der FIGUR 2 dargestellten Schalters 28 als Blattfeder 32 ausgebildet, während das andere Kontaktelement von einer Schlingfeder 33 gebildet wird. Beide Kontaktelemente sind ohne zusätzliche Befestigungsmittel in an der Führungswand 12 des Schachtes 16 ausgebildeten Kulissen gehaltert, und zwar derart, daß eine senkrecht zur Führungswand 12 stehende, geometrische Ebene, in welcher der kontaktgebende Schenkel 34 der Schlingfeder 33 liegt, die Blattfeder 32 in Längsrichtung schneidet.As FIGURE 2 shows, one contact element of the
Für die Aufnahme der Schlingfeder 33 bzw. der Schlingfederwicklung ist ein an der Führungswand 12 wandparallel angeformter Zapfen 35 vorgesehen. Zusätzlich ist der im wesentlichen parallel zur Führungswand 12 sich erstreckende, kontaktgebende Schenkel 34 in einem Schlitz 36 geführt, welcher in einer an der Führungswand 12 angeformten Wange 37 ausgebildet ist. Der nicht kontaktgebende Schenkel 38 der Schlingfeder 33 ist, was im einzelnen besser aus FIGUR 3 ersichtlich ist, zu einer Kralle 39 geformt und in einer Tasche 40 gehaltert, welche in einem Wandvorsprung 41 ausgebildet ist.A
Der für eine federnde Selbsthaltung in geeigneter Weise geformten Blattfeder 32 sind jeweils an der Führungswand 12 angeformte Lagerböcke 42 und 43 und eine Brücke 44 zugeordnet. Außerdem ist einem an der Blattfeder 32 ausgebildeten Arm 45 in dem Wandvorsprung 41 eine Tasche 46 zugeordnet. Der Arm 45 der Blattfeder 32 ist in gleicher Weise wie der Schenkel 38 der Schlingfeder 33 zu einer Kralle 47 geformt, wobei im eingebauten Zustand die Enden der Krallen 39 und 47 im wesentlichen auf einer Linie liegen und in den Einsteckweg eines flexiblen Leitungsbandes 48 eingreifen. Das Leitungsband 48 ist durch geeignetes Freisenken des Wandvorsprungs 41 zwischen der Führungswand 12 und dem Wandvorsprung 41 wenigstens seitlich geführt und wird durch die Widerhakenfunktion der Krallen 39 und 47, die sich beim Einschieben des Leitungsbandes 48 in das Leitungsband 48 eingraben, gegen Herausziehen gesichert. Dabei erfolgt gleichzeitig eine Kontaktierung zwischen den Kontaktelementen des Schalters 28, der Blattfeder 32 und der Schlingfeder 33 und Leiterbahnen 49 und 50, welche im Leitungsband 48 eingebettet sind, wobei die Enden der Leiterbahnen 49 und 50 zum Zwecke einer sicheren Kontaktgabe verbreitert ausgebildet sind.The
In dem in FIGUR 3 dargestellten Schnitt befindet sich der Schalter 28 im nicht betätigten Zustand, d. h. im Schacht 16 ist keine Diagrammscheibe vorhanden, und der kontaktgebende Schenkel 34 ist von dem vorzugsweise angewinkelten Ende 51 der Blattfeder 32 abgehoben. In diesem Zustand liegt die bei dem bevorzugten Ausführungsbeispiel als Betätigungsglied vorgesehene und erfindungsgemäß auf dem kontaktgebenden Schenkel 34 gelagerte Rolle 30 unter der Wirkung der Schlingfeder 33 am Grund einer Senkung 52 in der Führungswand 13 an. Dabei greift die Rolle 30 durch eine Öffnung 53 in der Führungswand 12 in den Schacht 16 ein und ist einerseits durch die Wange 37, andererseits durch Gegenlager 54 und 55 seitlich geführt. Mit 56 ist ein an der Führungswand 12 angeformter Sockel bezeichnet.In the section shown in FIGURE 3, the
Der Vollständigkleit halber sei noch erwähnt, daß das Betätigungsglied, insbesondere wenn größere Kräfte und entsprechend steife Datenträger, beispielsweise Datenkarten, in dem betreffenden Gerät verwendet werden, keilförmig ausgebildet und verschiebbar gelagert sein kann.For the sake of completeness, it should also be mentioned that the actuator, in particular if greater forces and correspondingly rigid data carriers, for example data cards, are used in the device in question, can be wedge-shaped and can be displaceably mounted.
Claims (5)
- Contact means for a switch (28) which in a device serves to detect the insertion or the removal of a flat body (7), for example a data carrier, is arranged on the opposite side of a wall (12) of the device guiding the flat body (7) and with which an actuating member (30) engaging through the guide wall is associated, characterized in that one contact element of the switch (28) is constructed as a leaf spring (32) and a further contact element is constructed as a wrap spring (33), in that the wrap spring (33) is mounted on a pin (35) integrally formed in wall-parallel manner on the guide wall (12), and in that the contact elements are associated with one another such that a geometric plane determined by the position of the one leg (34) of the wrap spring (33) and perpendicular to the guide wall (12) intersects the leaf spring (32) in the longitudinal direction.
- Contact means according to Claim 1, characterized in that the leg (34) of the wrap spring (33) cooperating with the leaf spring (32) is arranged substantially parallel to the guide wall (12), in that the leg (34) is constructed to be longer than the leaf spring (32), and in that the actuating member acts on the leg (34) of the wrap spring (33).
- Contact means according to Claim 1, characterized in that the actuating member is constructed as a roller (30), and in that the roller (30) is rotatably mounted on the contacting leg (34) of the wrap spring (33).
- Contact means according to Claim 1, characterized in that apart from the pin (35) links are formed on the guide wall (12) for receiving the wrap spring winding for lateral holding of the wrap spring legs (34, 38) and for a resilient self-holding of the leaf spring (32).
- Contact means according to Claim 1, characterized in that for the purpose of contacting the switch (28) with a flexible conduction band (48) the non-contacting leg (38) of the wrap spring (33) and the non-contacting end of the leaf spring (32) are constructed as resilient claws (39 and 47).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4016292A DE4016292A1 (en) | 1990-05-21 | 1990-05-21 | CONTACT DEVICE FOR A SWITCH |
| DE4016292 | 1990-05-21 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0458166A2 EP0458166A2 (en) | 1991-11-27 |
| EP0458166A3 EP0458166A3 (en) | 1993-02-10 |
| EP0458166B1 true EP0458166B1 (en) | 1994-09-14 |
Family
ID=6406862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91107758A Expired - Lifetime EP0458166B1 (en) | 1990-05-21 | 1991-05-14 | Contact device for a switch |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0458166B1 (en) |
| JP (1) | JPH0733310Y2 (en) |
| BR (1) | BR9102065A (en) |
| DE (2) | DE4016292A1 (en) |
| ES (1) | ES2062612T3 (en) |
| IE (1) | IE911703A1 (en) |
| PT (1) | PT97701A (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB381530A (en) * | 1932-02-16 | 1932-10-06 | Charles Gurdjian | Improvements in or relating to burglar and like alarms |
| FI44920C (en) * | 1967-02-24 | 1972-02-10 | Ericsson Telefon Ab L M | Push button switch |
| CA893832A (en) * | 1970-07-13 | 1972-02-22 | Renaud Richard | Safety switch |
| GB1360147A (en) * | 1972-09-22 | 1974-07-17 | Eskofot As | Microswitch feeler device especially for photocopying apparatus |
| US4328402A (en) * | 1979-08-27 | 1982-05-04 | Bell & Howell Company | Sensing switch for detecting a document |
-
1990
- 1990-05-21 DE DE4016292A patent/DE4016292A1/en not_active Withdrawn
-
1991
- 1991-05-14 ES ES91107758T patent/ES2062612T3/en not_active Expired - Lifetime
- 1991-05-14 EP EP91107758A patent/EP0458166B1/en not_active Expired - Lifetime
- 1991-05-14 DE DE59102899T patent/DE59102899D1/en not_active Expired - Fee Related
- 1991-05-17 PT PT97701A patent/PT97701A/en not_active Application Discontinuation
- 1991-05-20 BR BR919102065A patent/BR9102065A/en not_active Application Discontinuation
- 1991-05-20 IE IE170391A patent/IE911703A1/en unknown
- 1991-05-20 JP JP1991035426U patent/JPH0733310Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| IE911703A1 (en) | 1991-12-04 |
| DE4016292A1 (en) | 1991-11-28 |
| BR9102065A (en) | 1991-12-24 |
| EP0458166A2 (en) | 1991-11-27 |
| PT97701A (en) | 1993-06-30 |
| EP0458166A3 (en) | 1993-02-10 |
| ES2062612T3 (en) | 1994-12-16 |
| JPH0733310Y2 (en) | 1995-07-31 |
| DE59102899D1 (en) | 1994-10-20 |
| JPH04102124U (en) | 1992-09-03 |
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