EP0214410B1 - Electrical circuit element operated by a key - Google Patents

Electrical circuit element operated by a key Download PDF

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Publication number
EP0214410B1
EP0214410B1 EP86109812A EP86109812A EP0214410B1 EP 0214410 B1 EP0214410 B1 EP 0214410B1 EP 86109812 A EP86109812 A EP 86109812A EP 86109812 A EP86109812 A EP 86109812A EP 0214410 B1 EP0214410 B1 EP 0214410B1
Authority
EP
European Patent Office
Prior art keywords
key
switching device
switching
casing
magnets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86109812A
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German (de)
French (fr)
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EP0214410A1 (en
Inventor
Werner Haug
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.)
Frama AG
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Frama AG
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Filing date
Publication date
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Priority to AT86109812T priority Critical patent/ATE49450T1/en
Publication of EP0214410A1 publication Critical patent/EP0214410A1/en
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Publication of EP0214410B1 publication Critical patent/EP0214410B1/en
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00722—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with magnetic components, e.g. magnets, magnetic strips, metallic inserts
    • G07C9/0073—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with magnetic components, e.g. magnets, magnetic strips, metallic inserts actuating magnetically controlled switches, e.g. reed relays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7904—Magnetic features

Definitions

  • the invention relates to a key-operated electrical switching device with the features of the preamble of claim 1.
  • a switching device of this type is known from US Pat. No. 4,331,013 and fulfills the task of switching the circuit of the electrical system of a motor vehicle against theft.
  • a number of magnetic switches are arranged at a uniform distance from one another in the housing of the device, of which magnetic switches selected only according to a coded scheme by the electrical switching scheme are to be switched on in order to establish the desired electrical connection, so that permanent magnets invisibly enclosed in the key body at a suitable position must be provided.
  • this connection remains interrupted.
  • the invention has for its object to find a switching device according to the preamble of claim 1, the simple and inexpensive to manufacture and space-saving structure allows a reliable and confusion-free optional switching of different electrical connections by different keys. This object is achieved on the basis of the characterizing features of patent claim 1.
  • the switching device according to the invention is particularly suitable for the optional activation of different counters for the amount of value consumption of an electronically controlled franking machine, so that the individual amount of value consumption of different users, who each have a different key, can be identified.
  • the electrical switching device shown overall in FIG. 1 is fastened to a housing plate 1 of a franking machine (not shown in more detail).
  • a housing plate 1 of a franking machine for this purpose, three smaller recesses or openings 2, 3, 4 for the engagement of extensions 5, 6, 7 of a steel housing 8 of cross section with a U-shaped cross section of the switching device are provided in the housing plate 1, as well as a circular opening 9 through which the one shown in FIG. 6.7 shown, the key guide inner housing 10 is inserted.
  • the switching device is held on the housing plate 1 by a rosette 11 molded onto the inner housing 10 rests along the edge of this opening 9 on the outer surface of the housing plate 1 and an extension 12 is formed on the rear end of the inner housing 10, which with a rear transverse wall 13 of the steel housing 8 is connected.
  • this extension 12 extends through a correspondingly shaped opening 14 and carries a locking pin 15 which engages through a transverse bore 16 of the extension provided behind the transverse wall 13 and thus rests on the outside of this transverse wall. After removing this locking pin, the entire switching device can consequently be lifted off the housing plate 1, and the switching device can be assembled simply and quickly.
  • plate extensions 27, 28 provided on the front and rear ends of this circuit board 20 engage in correspondingly shaped depressions or openings 29, 30 of the housing plate 1 and the transverse wall 13 when the steel housing 8 is mounted on the housing plate 1 in the manner described above by means of the inner housing 10.
  • the key 32 like the inner housing 10 made of plastic or another material not influencing magnetic fields, consists of an elongated plate with flat outer surfaces and closes at least one pin-shaped permanent magnet 41 to 45 and, in the case of a number of five magnetic switches 21, in an invisible manner to 25, a maximum of four permanent magnets 41 to 43 and 45.
  • the key has 32 receiving bores A, B, C, D for the pin-shaped permanent magnets, which extend transversely to the longitudinal direction of the key in the key plane. After certain receiving bores have been filled in accordance with the code scheme shown in FIG. 2, they are tightly closed by a common locking web 47 by welding it to the key body.
  • the flat outer surfaces of the key body can, for example Wear illustrations or characters so that it can also serve as an advertising medium like a key ring.
  • the code scheme reveals that each of eight different keys with the numbers 0 to 7 in hole D, which is located at the rear end of the key 32, has a magnet 45, in accordance with the condition provided in the code signal processor C that the switching device is connected to the counter Z of the franking machine only makes an electrical connection if the rearmost magnetic switch in the key insertion direction is also actuated by the magnet 45.
  • the rearmost magnet 45 is in this end or stop position of the key 32 to the rear most magnetic switch 25 in the shifted switching position, while the remaining magnets 41 to 43 or the mounting holes A, B, C provided for them are the associated Magnetic switches exactly, ie with the shortest distance.
  • the aforementioned offset switching position corresponds to that position of the magnet 45 in which the magnetic switch 25 is just just being reliably switched by the force of the magnetic field of the magnet 45.
  • This shifted switching position results, for example, from the fact that a greater distance is provided between the rear magnetic switches 24 and 25 or also between the magnetic switches 23, 24 than between the three front magnetic switches 21 to 23, while only between the penultimate and last magnets 43 and 45 there is a distance that is twice as large as the distance between the magnets 41 to 43 due to the empty space between them.
  • the distances between the magnets 41 to 43 or their receiving holes and correspondingly the distances between the magnetic switches 21 to 23 are each 7 mm while the distance between the three rear magnetic switches 23 to 25 is 8 mm and the distance between the two rear magnets 43.45 is 14 mm.
  • Securing an exactly predetermined switching position of the key 32 in the key receiving hole 18 is of great importance for a reliable function of the switching device according to the invention due to the sensitive magnetic switches (reed contacts) and the scatter of the magnetic fields of the various magnetic fields, which also influence one another.
  • the magnets In order to prevent with greater certainty that the magnets influence one another via their fields, or to allow a more compact arrangement of the magnets, they can preferably be arranged alternately with opposite polarity, as shown in FIG. 1, the reverse arrangement of the magnet 45.
  • the switching device thus has a steel housing 8 with ferromagnetic properties, which encloses the magnetic switches 21 to 25 on three sides due to its U-shaped cross section.
  • the penultimate position i.e. In front of the rearmost magnetic switch, a magnetic switch 24 serving as a locking switch is provided, when the magnetic signal switch C is closed, a locking signal is emitted.
  • This blocking magnet switch 24 is used to operate the magnet switch 25 during an unauthorized attempt by means of a third-party magnet, the actuation of which is necessary for each main electrical circuit of the device, and the blocking magnet switch 24 is also actuated.
  • the code scheme shown in FIG. 2 for keys with the key numbers 0 to 7 shows the occupation of the receiving holes A, B, C, D provided in the key 32 by magnets and their polarity by specifying the south or north poles S and N, respectively one side of the key 32 is directed.
  • a key with the number 5 in the holes A, C and D has a magnet 41, 43, 45 with the same polarity of the magnets in the holes A and D.
  • certain signal combinations of the magnetic switches 21 to 23 corresponding to the code are and 25 are stored, when they are fed to the code signal processor C due to the switching of a specific combination of magnetic switches 21 to 23 and 25 in accordance with the respective key code, an electrical switching connection to the consumer, ie in the present example for the counter Z of a franking machine.
  • a switching device has many advantageous possible uses due to its simple structure and reliable function, e.g. also as a locking device on doors or container lids that are heavily stressed by the weather, since no impurities or moisture can penetrate to the electrical switching connections via the key receiving hole 18 and these can also be completely encapsulated in a water-protected manner in a simple manner.
  • the switching device is arranged on a region of a housing plate 1 which runs horizontally or inclined so that there is a downward inclined or vertical orientation of the key guide, i.e. of the inner housing 18 results.
  • a housing plate 1 which runs horizontally or inclined so that there is a downward inclined or vertical orientation of the key guide, i.e. of the inner housing 18 results.

Abstract

This invention pertains to a key operated mechanism for producing coded signal combinations for selecting a function of a multifunctional device. The mechanism includes a plurality of magnetically operated switches arranged along a key guide. The key includes magnets specifically positioned for interaction with the magnetically operated switches in accordance with a code diagram. Closing of the switches sends signals to a code signal user, which if the signals are enabling activates an associated machine such as a franking machine.

Description

Die Erfindung betrifft eine schlüsselbetätigte elektrische Schaltvorrichtung mit den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a key-operated electrical switching device with the features of the preamble of claim 1.

Eine Schaltvorrichtung dieser Art ist bekannt durch die US-PS 4 331 013 und erfüllt die Aufgabe, den Stromkreis der elektrischen Anlage eines Motorfahrzeuges diebstahlsicher zu schalten. Hierfür sind im Gehäuse der Vorrichtung eine Anzahl von Magnetschaltern in gleichförmigem Abstand voneinander angeordnet, von denen nur nach einem codierten Schema durch das elektrische Schaltschema ausgewählte Magnetschalter einzuschalten sind, um die gewünschte elektrische Verbindung herzustellen, so dass im Schlüsselkörper unsichtbar eingeschlossene Permanentmagnete an dazu passender Position vorgesehen sein müssen. Bei Betätigung von ebenfalls vorgesehenen Magnetschaltern, die nicht für die Herstellung dieser Verbindung ausgewählt worden sind, bleibt diese Verbindung unterbrochen.A switching device of this type is known from US Pat. No. 4,331,013 and fulfills the task of switching the circuit of the electrical system of a motor vehicle against theft. For this purpose, a number of magnetic switches are arranged at a uniform distance from one another in the housing of the device, of which magnetic switches selected only according to a coded scheme by the electrical switching scheme are to be switched on in order to establish the desired electrical connection, so that permanent magnets invisibly enclosed in the key body at a suitable position must be provided. When actuating also provided magnetic switches that have not been selected for the establishment of this connection, this connection remains interrupted.

Der Erfindung liegt die Aufgabe zugrunde, eine Schaltvorrichtung gemäss dem Oberbegriff des Patentanspruchs 1 zu finden, die bei einfachem, preiswert herstellbarem und raumsparendem Aufbau eine zuverlässige und verwechslungssichere wahlweise Schaltung verschiedener elektrischer Verbindungen durch verschiedene Schlüssel ermöglicht. Die Lösung dieser Aufgabe erfolgt aufgrund der kennzeichnenden Merkmale des Patentanspruchs 1.The invention has for its object to find a switching device according to the preamble of claim 1, the simple and inexpensive to manufacture and space-saving structure allows a reliable and confusion-free optional switching of different electrical connections by different keys. This object is achieved on the basis of the characterizing features of patent claim 1.

Die erfindungsgemässe Schaltvorrichtung eignet sich aufgrund ihrer hohen Zuverlässigkeit inbesondere für die wahlweise Einschaltung verschiedener Zählwerke für den Wertmengenverbrauch einer elektronisch gesteuerten Frankiermaschine, so dass der individuelle Wertmengenverbrauch verschiedener Benutzer, die jeweils einen anderen Schlüssel besitzen, ausgewiesen werden kann.Because of its high reliability, the switching device according to the invention is particularly suitable for the optional activation of different counters for the amount of value consumption of an electronically controlled franking machine, so that the individual amount of value consumption of different users, who each have a different key, can be identified.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Patentansprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Im folgenden wird die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigt:

  • Fig.1 einen parallel zur Ebene des Schlüssellochschlitzes geführten Längsschlitz durch eine erfindungsgemässe Schaltvorrichtung in vergrösserter Darstellung,
  • Fig.2 ein Schema zur Darstellung verschiedener Schlüsselcodes,
  • Fig.3 eine Ansicht eines Teiles einer die Schaltvorrichtung aufnehmenden Gehäuseplatte einer Frankiermaschine,
  • Fig.4 eine Aufsicht auf das Stahlgehäuse der Schaltvorrichtung,
  • Fig.5 eine Vorderansicht des Stahlgehäuses nach Fig. 4,
  • Fig.6 eine Aufsicht auf ein Innengehäuse für die Schlüsselführung,
  • Fig.7 eine Vorderansicht des Innengehäuses nach Fig.6,
  • Fig.8 eine Aufsicht auf eine Magnetschalter tragende Leiterplatte mit schematisch angedeuteten elektronischen Einheiten,
  • Fig.9 eine Aufsicht auf einen für die Schaltvorrichtung vorgesehenen Schlüssel und
  • Fig. 10 eine schmalseitige Ansicht des Schlüssels nach Fig.9.
The invention is explained in more detail below on the basis of an exemplary embodiment shown in the drawings. It shows:
  • 1 shows a longitudinal slot, which runs parallel to the plane of the keyhole slot, through a switching device according to the invention, on an enlarged scale,
  • 2 shows a diagram for representing different key codes,
  • 3 shows a view of a part of a housing plate of a franking machine which receives the switching device,
  • 4 shows a plan view of the steel housing of the switching device,
  • 5 shows a front view of the steel housing according to FIG. 4,
  • 6 shows a top view of an inner housing for the key guide,
  • 7 shows a front view of the inner housing according to FIG. 6,
  • 8 is a plan view of a circuit board carrying a magnetic switch with schematically indicated electronic units,
  • 9 is a plan view of a key provided for the switching device and
  • 10 is a narrow side view of the key according to FIG. 9.

Die in Fig.1 gesamthaft dargestellte elektrische Schaltvorrichtung ist an einer Gehäuseplatte 1 einer nicht näher dargestellten Frankiermaschine befestigt. Hierfür sind in der Gehäuseplatte 1 drei kleinere Vertiefungen oder Oeffnungen 2, 3,4 für den Eingriff von Fortsätzen 5,6,7 eines im Querschnitt u-förmigen Stahlgehäuses 8 der Schaltvorrichtung vorgesehen sowie eine kreisrunde Oeffnung 9, durch die hindurch das in Fig. 6,7 dargestellte, der Schlüsselführung dienende Innengehäuse 10 eingeführt ist. Durch dieses Innengehäuse 10 ist die Schaltvorrichtung an der Gehäuseplatte 1 gehalten, indem eine an das Innengehäuse 10 angeformte Rosette 11 entlang des Randes dieser Oeffnung 9 an der Aussenfläche der Gehäuseplatte 1 anliegt und am hinteren Ende des Innengehäuses 10 ein Fortsatz 12 angeformt ist, der mit einer hinteren Querwand 13 des Stahlgehäuses 8 verbunden ist. Für diese Verbindung erstreckt sich dieser Fortsatz 12 durch eine entsprechend geformte Oeffnung 14 und trägt einen Verriegelungsstift 15, der durch eine hinter der Querwand 13 vorgesehene Querbohrung 16 des Fortsatzes greift und somit an der Aussenseite dieser Querwand anliegt. Nach Entfernen dieses Verriegelungsstiftes lässt sich folglich die gesamte Schaltvorrichtung von der Gehäuseplatte 1 abheben, und es ergibt sich eine einfache und schnelle Montage der Schaltvorrichtung.The electrical switching device shown overall in FIG. 1 is fastened to a housing plate 1 of a franking machine (not shown in more detail). For this purpose, three smaller recesses or openings 2, 3, 4 for the engagement of extensions 5, 6, 7 of a steel housing 8 of cross section with a U-shaped cross section of the switching device are provided in the housing plate 1, as well as a circular opening 9 through which the one shown in FIG. 6.7 shown, the key guide inner housing 10 is inserted. Through this inner housing 10, the switching device is held on the housing plate 1 by a rosette 11 molded onto the inner housing 10 rests along the edge of this opening 9 on the outer surface of the housing plate 1 and an extension 12 is formed on the rear end of the inner housing 10, which with a rear transverse wall 13 of the steel housing 8 is connected. For this connection, this extension 12 extends through a correspondingly shaped opening 14 and carries a locking pin 15 which engages through a transverse bore 16 of the extension provided behind the transverse wall 13 and thus rests on the outside of this transverse wall. After removing this locking pin, the entire switching device can consequently be lifted off the housing plate 1, and the switching device can be assembled simply and quickly.

Für die Halterung einer die Magnetschalter (Reed-Kontakte) 21 bis 25 tragenden elektrischen Leiterplatte 20 zwischen der hinteren Querwand 13 des Stahlgehäuses 8 und der Gehäuseplatte 1 der Frankiermaschine greifen am vorderen und hinteren Ende dieser Leiterplatte 20 vorgesehene Plattenfortsätze 27,28 in entsprechend geformte Vertiefungen oder Oeffnungen 29,30 der Gehäuseplatte 1 und der Querwand 13 ein, wenn das Stahlgehäuse 8 in der zuvor beschriebenen Weise mittels des Innengehäuses 10 an der Gehäuseplatte 1 montiert wird.For holding a magnetic circuit board (reed contacts) 21 to 25 carrying electrical circuit board 20 between the rear transverse wall 13 of the steel housing 8 and the housing plate 1 of the franking machine, plate extensions 27, 28 provided on the front and rear ends of this circuit board 20 engage in correspondingly shaped depressions or openings 29, 30 of the housing plate 1 and the transverse wall 13 when the steel housing 8 is mounted on the housing plate 1 in the manner described above by means of the inner housing 10.

Der wie das Innengehäuse 10 aus Kunststoff, bzw. einem anderen Magnetfelder nicht beeinflussenden Material, bestehende Schlüssel 32 besteht aus einer länglichen Platte mit ebenen Aussenflächen und schliesst auf nicht sichtbare Weise mindestens einen stiftförmigen Permanentmagneten 41 bis 45 und, bei einer Anzahl von fünf Magnetschaltern 21 bis 25, maximal vier Permanentmagnete 41 bis 43 und 45 ein. Hierfür hat der Schlüssel 32 Aufnahmebohrungen A,B,C,D für die stiftförmigen Permanentmagnete, die sich quer zur Schlüssellängsrichtung in der Schlüsselebene erstrecken. Nach Füllen bestimmter Aufnahmebohrungen entsprechend dem in Fig.2 gezeigten Codeschema, werden diese durch einen gemeinsamen Verschlusssteg 47 dicht verschlossen, indem dieser mit dem Schlüsselkörper verschweisst wird. Die ebenen Aussenflächen des Schlüsselkörpers können beispielsweise Abbildungen oder Schriftzeichen tragen, so dass er wie ein Schlüsselanhänger auch als Werbeträger dienen kann.The key 32, like the inner housing 10 made of plastic or another material not influencing magnetic fields, consists of an elongated plate with flat outer surfaces and closes at least one pin-shaped permanent magnet 41 to 45 and, in the case of a number of five magnetic switches 21, in an invisible manner to 25, a maximum of four permanent magnets 41 to 43 and 45. For this purpose, the key has 32 receiving bores A, B, C, D for the pin-shaped permanent magnets, which extend transversely to the longitudinal direction of the key in the key plane. After certain receiving bores have been filled in accordance with the code scheme shown in FIG. 2, they are tightly closed by a common locking web 47 by welding it to the key body. The flat outer surfaces of the key body can, for example Wear illustrations or characters so that it can also serve as an advertising medium like a key ring.

Das Codeschema lässt erkennen, dass jeder von acht verschiedenen Schlüsseln mit den Nummern 0 bis 7 im Loch D, das sich am hinteren Ende des Schlüssels 32 befindet, einen Magneten 45 aufweist, entsprechend der im Codesignalverwerter C vorgesehenen Bedingung, dass die Schaltvorrichtung zu dem Zählwerk Z der Frankiermaschine nur eine elektrische Verbindung herstellt, wenn auch der in Schlüsseleinführungsrichtung hinterste Magnetschalter durch den Magneten 45 betätigt wird.The code scheme reveals that each of eight different keys with the numbers 0 to 7 in hole D, which is located at the rear end of the key 32, has a magnet 45, in accordance with the condition provided in the code signal processor C that the switching device is connected to the counter Z of the franking machine only makes an electrical connection if the rearmost magnetic switch in the key insertion direction is also actuated by the magnet 45.

Um zu erreichen, dass eine elektrische Verbindung nur hergestellt wird oder durch die Anordnung vom Magnetschaltern 21 bis 23 und 25 nur eine verwertbare Signalkombination an den Codesignalverwerter abgegeben wird, wenn der Schlüssel 32 in dem Schlüsselaufnahmeloch 18 eine exakt vorgegebene Endposition entsprechend der Darstellung in Fig.1 eingenommen hat, befindet sich der hinterste Magnet 45 in dieser End- oder Anschlagposition des Schlüssels 32 zu dem hinter sten Magnetschalter 25 in vorversetzter Schaltposition, während die übrigen Magnete 41 bis 43 oder die für sie vorgesehenen Aufnahmebohrungen A,B,C sich den zugehörigen Magnetschaltern genau, d.h. mit kürzestem Abstand, gegenüberbefinden. Die genannte vorversetzte Schaltposition entspricht derjenigen Position des Magnetes 45, in der gerade noch zuverlässig eine Schaltung des Magnetschalters 25 durch die Kraft des Magnetfeldes des Magnetes 45 erfolgt. Diese versetzte Schaltposition ergibt sich beispielsweise dadurch, dass zwischen den hinteren Magnetschaltern 24 und 25 oder auch zwischen den Magnetschaltern 23,24 ein grösserer Abstand vorgesehen ist als zwischen den drei vorderen Magnetschaltern 21 bis 23, während zwischen dem vorletzten und letzten Magneten 43 und 45 nur ein Abstand vorhanden ist, der aufgrund der Leerstelle zwischen ihnen doppelt so gross ist als der Abstand zwischen den Magneten 41 bis 43. Beispielsweise betragen die Abstände zwischen den Magneten 41 bis 43 oder ihren Aufnahmelöchern und entsprechend die Abstände zwischen den Magnetschaltem 21 bis 23 jeweils 7 mm während der Abstand zwischen den drei hinteren Magnetschaltern 23 bis 25 jeweils 8 mm und der Abstand zwischen den beiden hinteren Magneten 43,45 14 mm beträgt.In order to ensure that an electrical connection is only established or that only a usable signal combination is delivered to the code signal processor by the arrangement of the magnetic switches 21 to 23 and 25, if the key 32 in the key receiving hole 18 has a precisely predetermined end position as shown in FIG. 1 has taken, the rearmost magnet 45 is in this end or stop position of the key 32 to the rear most magnetic switch 25 in the shifted switching position, while the remaining magnets 41 to 43 or the mounting holes A, B, C provided for them are the associated Magnetic switches exactly, ie with the shortest distance. The aforementioned offset switching position corresponds to that position of the magnet 45 in which the magnetic switch 25 is just just being reliably switched by the force of the magnetic field of the magnet 45. This shifted switching position results, for example, from the fact that a greater distance is provided between the rear magnetic switches 24 and 25 or also between the magnetic switches 23, 24 than between the three front magnetic switches 21 to 23, while only between the penultimate and last magnets 43 and 45 there is a distance that is twice as large as the distance between the magnets 41 to 43 due to the empty space between them. For example, the distances between the magnets 41 to 43 or their receiving holes and correspondingly the distances between the magnetic switches 21 to 23 are each 7 mm while the distance between the three rear magnetic switches 23 to 25 is 8 mm and the distance between the two rear magnets 43.45 is 14 mm.

Die Sicherung einer exakt vorgegebenen Schaltposition des Schlüssels 32 in dem Schlüsselaufnahmeloch 18 hat aufgrund der sensibel ansprechenden Magnetschalter (Reedkontakte) und der Streuung der Magnetfelder der verschiedenen sich auch gegenseitig beeinflussenden Magnetfelder grosse Bedeutung für eine zuverlässige Funktion der erfindungsgemässen Schaltvorrichtung.Securing an exactly predetermined switching position of the key 32 in the key receiving hole 18 is of great importance for a reliable function of the switching device according to the invention due to the sensitive magnetic switches (reed contacts) and the scatter of the magnetic fields of the various magnetic fields, which also influence one another.

Um mit grösserer Sicherheit zu verhindern, dass die Magnete sich über ihre Felder gegenseitig beeinflussen, bzw. um eine kompaktere Anordnung der Magnete zu ermöglichen, können diese vorzugsweise abwechselnd entgegengesetzt gepolt angeordnet sein, wie in Fig. 1 die umgekehrte Anordnung des Magnetes 45 zeigt.In order to prevent with greater certainty that the magnets influence one another via their fields, or to allow a more compact arrangement of the magnets, they can preferably be arranged alternately with opposite polarity, as shown in FIG. 1, the reverse arrangement of the magnet 45.

Ueberraschend hat sich weiterhin gezeigt, dass eine weitreichende gegenseitige Beeinflussung zwischen den einzelnen Magneten hinsichtlich ihrer örtlich gerichteten Schaltwirkung mit entsprechenden Fehlschaltungen auftritt, wenn nicht die Magnetschalter 21 bis 25 durch ein Stahlgehäuse 8 mindestens 1eilweise umgeben sind. In bevorzugter Ausgestaltung der Erfindung hat somit die Schaltvorrichtung ein Stahlgehäuse 8 mit ferromagnetischen Eigenschaften, das die Magnetschalter 21 bis 25 durch seinen u-förmigen Querschnitt nach drei Seiten hin umschliesst.Surprisingly, it has also been shown that there is a far-reaching mutual influence between the individual magnets with regard to their locally directed switching action with corresponding incorrect switching, if the magnetic switches 21 to 25 are not at least partially surrounded by a steel housing 8. In a preferred embodiment of the invention, the switching device thus has a steel housing 8 with ferromagnetic properties, which encloses the magnetic switches 21 to 25 on three sides due to its U-shaped cross section.

Zur Sicherung gegen eine unbefugte Benutzung der Frankiermaschine, bzw. eine unbefugte elektrische Schaltung mittels der Schaltvorrichtung, ist an vorletzter Position, d.h. vor dem hintersten Magnetschalter ein als Sperrschalter dienender Magnetschalter 24 vorgesehen, bei dessen Schliessen an den Codesignalverwerter C ein Sperrsignal abgegeben wird. Durch diesen Sperrmagnetschalter 24 wird beim unbefugten Versuch mittels eines Fremdmagneten den Magnetschalter 25 zu betätigen, dessen Betätigung für jede elektrische Hauptschaltung der Vorrichtung notwendig ist, auch der Sperrmagnetschalter 24 betätigt.To protect against unauthorized use of the franking machine or an unauthorized electrical circuit by means of the switching device, the penultimate position, i.e. In front of the rearmost magnetic switch, a magnetic switch 24 serving as a locking switch is provided, when the magnetic signal switch C is closed, a locking signal is emitted. This blocking magnet switch 24 is used to operate the magnet switch 25 during an unauthorized attempt by means of a third-party magnet, the actuation of which is necessary for each main electrical circuit of the device, and the blocking magnet switch 24 is also actuated.

Das in Fig. 2 gezeigte Codeschema für Schlüssel mit der Schlüsselnummer 0 bis 7 zeigt die Besetzung der im Schlüssel 32 vorgesehenen Aufnahmelöcher A,B,C,D durch Magnete und deren Polung durch Angabe des Süd- oder Nordpoles S bzw.N, der zu einer Seite des Schlüssels 32 hin gerichtet ist. Beispielsweise hat ein Schlüssel mit der Nr.5 im Loch A,C und D je einen Magneten 41,43,45 mit gleicher Polung der Magnete im Loch A und D. In dem Codesignalverwerter C sind bestimmte dem Code entsprechende Signalkombinationen der Magnetschalter 21 bis 23 und 25 eingespeichert, bei deren Zuführung zu dem Codesignalverwerter C aufgrund der Schaltung einer bestimmten Kombination von Magnetschaltern 21 bis 23 und 25 entsprechend dem jeweiligen Schlüsselcode eine elektrische Schaltverbindung zu dem Verbraucher, d.h. im vorliegenden Beispiel zu dem Zählwerk Z einer Frankiermaschine, freigegeben wird.The code scheme shown in FIG. 2 for keys with the key numbers 0 to 7 shows the occupation of the receiving holes A, B, C, D provided in the key 32 by magnets and their polarity by specifying the south or north poles S and N, respectively one side of the key 32 is directed. For example, a key with the number 5 in the holes A, C and D has a magnet 41, 43, 45 with the same polarity of the magnets in the holes A and D. In the code signal processor C, certain signal combinations of the magnetic switches 21 to 23 corresponding to the code are and 25 are stored, when they are fed to the code signal processor C due to the switching of a specific combination of magnetic switches 21 to 23 and 25 in accordance with the respective key code, an electrical switching connection to the consumer, ie in the present example for the counter Z of a franking machine.

Es versteht sich, dass eine erfindungsgemässe Schaltvorrichtung aufgrund ihres einfachen Aufbaus und ihrer zuverlässigen Funktion viele vorteilhafte Anwendungsmöglichkeiten hat, z.B. auch als Schliessicherung an durch Witterungseinflüsse stark beanspruchten Türen oder Behälterdeckeln, da über das Schlüsselaufnahmeloch 18 keine Verunreinigungen oder Nässe zu den elektrischen Schaltverbindungen vordringen kann und auch diese auf einfache Weise vollständig wassergeschützt abgekapselt werden können.It is understood that a switching device according to the invention has many advantageous possible uses due to its simple structure and reliable function, e.g. also as a locking device on doors or container lids that are heavily stressed by the weather, since no impurities or moisture can penetrate to the electrical switching connections via the key receiving hole 18 and these can also be completely encapsulated in a water-protected manner in a simple manner.

Dadurch, dass das Innengehäuse 18, das der Schlüsselführung dient, ebenso wie die die Magnetschalter tragende Leiterplatte 20, vorn und hinten an jeweils einem gleichen Teil, d.h. der Gehäusequerwand 13 und der vorderen Gehäuseplatte 1, gehalten sind, ist stets ein genau vorgegebener Abstand zwischen dem Schlüssel 32, bzw. seinen Magneten und den Magnetschaltern gewährleistet, der für eine zuverlässige Schaltung grosse Bedeutung hat. Auch seitliche Krafteinwirkungen auf den Schlüssel 32 können folglich diesen Abstand nicht verändern.The fact that the inner housing 18, which serves the key guide, as well as the circuit board 20 carrying the magnetic switch, are each held in front and back on the same part, ie the housing transverse wall 13 and the front housing plate 1, there is always a precisely predetermined distance between the key 32, or its magnets and the magnetic switches, which is of great importance for reliable switching. Also lateral forces on the Keys 32 can therefore not change this distance.

Vorzugsweise wird die Schaltvorrichtung an einem Bereich einer Gehäuseplatte 1 angeordnet, der horizontal oder geneigt verläuft, so dass sich eine abwärts geneigte oder vertikale Ausrichtung der Schlüsselführung, d.h. des Innengehäuses 18 ergibt. Dies hat den Vorteil, dass der Schlüssel unter Schwerkrafteinfluss sicher in seiner hinteren Anschlagposition gehalten wird und Rastmittel überflüssig sind.Preferably, the switching device is arranged on a region of a housing plate 1 which runs horizontally or inclined so that there is a downward inclined or vertical orientation of the key guide, i.e. of the inner housing 18 results. This has the advantage that the key is held securely in its rear stop position under the influence of gravity and locking means are unnecessary.

Claims (9)

1. Key-operated, electrical switching device with magnets (41 to 45) enclosed in series in a key body (32) and a key guide (18) connected to the switching device casing and along which is arranged a row of electrical switching contacts operable by the magnets (41 to 45), it being possible to produce a predetermined electrical main connection (C-Z) through the magnetic operation of at least that contact located in final position in the row in the key insertion direction, whilst in penultimate position in the row is provided a magnetically operable blocking contact (24), characterized in that the switching device is operable by differently coded keys (32, No. 0 to 7) for releasing a corresponding number of different electrical main connections, the electrical contacts (21 to 25) being connected to a code signal user (C), which produces a connection to a consuming means (Zo-7) in accordance with the code of the key used.
2. Switching device according to claim 1, characterized in that the magnets (41 to 45) have a pin-like construction and are enclosed in a flat key (32) at right angles to the longitudinal direction thereof.
3. Switching device according to claim 1 or 2, characterized in that at least that magnet (45) provided at the rear end of the key (32) has an opposite polarity to its adjacent magnet (43).
4. Switching device according to one of the claims 1 to 3, characterized in that with the key (32) in the rear abutment position in the key guide (18), the magnet (45) provided at the rear end of the key is arranged in predisplaced manner with respect to the switching contact to be operated by it, whereas the remaining magnets have the minimum spacing from the switching contacts to be operated by them.
5. Switching device according to one of the claims 1 to 5, characterized in that the casing (8) surrounding the switching contacts (21 to 23) is made from ferromagnetic material.
6. Switching device according to claim 5, characterized in that the casing (8) is made from a U-shaped steel sheet with a downwardly bent partition (13), the casing being held on a device wall (1) by an inner casing (10) enclosing the key guide (18) and extending through said casing (8), in that it is connected by its end (12) to the casing partition (13) and overlaps said device wall (1).
7. Switching device according to claim 6, characterized in that the switching contacts (21 to 25) are arranged on a circuit board {20) secured between the casing partition (13) and the device wall (1).
8. Switching device according to one of the claims 1 to 7, characterized in that the key guide (18) is oriented in a vertical or downwardly sloping manner, so that the key is held in its rear abutment position by gravity.
9. A use of the switching device according to one of the claims 1 to 8 on a franking machine, characterized in that the consuming means (ZO-7) are counters for amounts consumed.
EP86109812A 1985-09-12 1986-07-17 Electrical circuit element operated by a key Expired - Lifetime EP0214410B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109812T ATE49450T1 (en) 1985-09-12 1986-07-17 KEY OPERATED ELECTRICAL SHIFT DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3941/85A CH669426A5 (en) 1985-09-12 1985-09-12
CH3941/85 1985-09-12

Publications (2)

Publication Number Publication Date
EP0214410A1 EP0214410A1 (en) 1987-03-18
EP0214410B1 true EP0214410B1 (en) 1990-01-10

Family

ID=4266775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109812A Expired - Lifetime EP0214410B1 (en) 1985-09-12 1986-07-17 Electrical circuit element operated by a key

Country Status (6)

Country Link
US (1) US4788623A (en)
EP (1) EP0214410B1 (en)
JP (1) JPS6273513A (en)
AT (1) ATE49450T1 (en)
CH (1) CH669426A5 (en)
DE (1) DE3668214D1 (en)

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DE3734399A1 (en) * 1987-01-30 1989-04-20 Schulte Schlagbaum Ag LOCKING DEVICE WITH ADDITIONAL FUNCTIONS
JPH02115481A (en) * 1988-09-28 1990-04-27 Juan Capdevila Key controlling access and related magnetic lock
CH678367A5 (en) * 1989-03-08 1991-08-30 Frama Ag
CH678366A5 (en) * 1989-03-08 1991-08-30 Frama Ag
CH678368A5 (en) * 1989-03-29 1991-08-30 Frama Ag
CH679088A5 (en) * 1989-07-21 1991-12-13 Frama Ag
AT399193B (en) * 1991-03-15 1995-03-27 Evva Werke ELECTRONIC LOCKING DEVICE
JP2549774B2 (en) * 1991-05-22 1996-10-30 株式会社テック Electromagnetic key switch
EP0731425B1 (en) * 1995-03-07 2004-12-22 Frama Ag Postage determination device
DE10001678C1 (en) * 2000-01-12 2001-09-06 Ikon Ag Praez Stechnik Locking cylinder
GB0002534D0 (en) * 2000-02-04 2000-03-29 Vela Intelligent Systems Ltd Switch recognition system
ES2214952B1 (en) * 2002-11-08 2005-12-01 Bolt Gestion Y Patrimonio, S.L. SECURITY CHEST.
US20070284943A1 (en) * 2006-03-20 2007-12-13 John Meeks RF-immobilizer and contactless ignition for a motor vehicle
US9305410B2 (en) * 2011-08-04 2016-04-05 Honda Motor Co., Ltd. Automatic detection of valet mode for smart entry systems
GB2528307B (en) * 2014-07-17 2019-01-30 Squire Henry & Sons A locking device
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Also Published As

Publication number Publication date
US4788623A (en) 1988-11-29
EP0214410A1 (en) 1987-03-18
DE3668214D1 (en) 1990-02-15
ATE49450T1 (en) 1990-01-15
CH669426A5 (en) 1989-03-15
JPS6273513A (en) 1987-04-04

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