EP1720133A2 - Closure device - Google Patents

Closure device Download PDF

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Publication number
EP1720133A2
EP1720133A2 EP06008744A EP06008744A EP1720133A2 EP 1720133 A2 EP1720133 A2 EP 1720133A2 EP 06008744 A EP06008744 A EP 06008744A EP 06008744 A EP06008744 A EP 06008744A EP 1720133 A2 EP1720133 A2 EP 1720133A2
Authority
EP
European Patent Office
Prior art keywords
contact
closure device
contact surface
key
read head
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Withdrawn
Application number
EP06008744A
Other languages
German (de)
French (fr)
Other versions
EP1720133A3 (en
Inventor
Walter Plank
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.)
EVVA Sicherheitstechnologie GmbH
Original Assignee
EVVA Werk Spezialerzeugung von Zylinder und Sicherheitsschloessern GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EVVA Werk Spezialerzeugung von Zylinder und Sicherheitsschloessern GmbH and Co KG filed Critical EVVA Werk Spezialerzeugung von Zylinder und Sicherheitsschloessern GmbH and Co KG
Publication of EP1720133A2 publication Critical patent/EP1720133A2/en
Publication of EP1720133A3 publication Critical patent/EP1720133A3/en
Withdrawn legal-status Critical Current

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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
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • 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
    • G07C9/00944—Details of construction or manufacture
    • 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
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00365—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks in combination with a wake-up circuit
    • G07C2009/00373—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks in combination with a wake-up circuit whereby the wake-up circuit is situated in the lock
    • 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
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00761—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors

Definitions

  • the invention relates to a closure device, the lock side has a read head for reading the locking information of a key, wherein the read head has a first and a second contact surface, which can be brought into contact with associated contact surfaces of the key, whereby in the lock electronics, a switching current for the start of a Wake-up electronics for starting the transmitting and receiving electronics is turned on.
  • closure devices are known for example as an I-button reader and an application is for example in the Austrian patent application A 1518/2004 described.
  • the problem is solved in that the first and / or the second contact surface of the read head is a spring-loaded switching element, which is turned off in the rest position and turned on under the contact pressure of the key for switching the switching current and transmission of the key information.
  • the disadvantages mentioned are avoided in principle by the fact that the two contact surfaces - without a key - have no charge. Only by pressing the key, the conductive connection is established and built the potential difference between the two contact surfaces, so that via the key of the current flow and subsequently the data flow can be made. The wake-up circuit of the electronics is always in operation.
  • FIG. 1 shows an exploded view of a reading head of a closure device according to the invention.
  • Fig. 2 shows a cross section through a read head with associated key.
  • the exploded view shown in Fig. 1 shows only the read head.
  • the first contact surface is formed by the reading ring 5, which can be screwed tightly in the door leaf.
  • Inside the reading ring 5 sits the insulating plate 3, in the central bore of the second contact surface as a central contact pin 6 is slidably seated.
  • This center contact pin 6 is sealed with respect to the insulating plate 3 by means of an O-ring 1 and protrudes under the pressure of the spring 7 on the outer surface of the insulating plate 3.
  • the inner contact pin 9 of the center contact pin 6 is at an insulating distance to the contact pin 8, which is connected to a circuit board 10 leading to the switching electronics.
  • Another contact pin protrudes through the printed circuit board 10 and a further insulating member 4 and communicates with the reading ring 5 in a conductive connection.
  • Fig. 2 shows a cross section through an assembled read head of the closure device according to the invention in the rest position, wherein there is an insulating distance between the contact pin 9 of the center contact pin 6 and the contact pin 8. If you now bring a key in the form of an I-button in the read head, so a pressure in the direction 11 is exerted on the read head, which brings the center contact pin 6 against the pressure of the spring 7 with the contact pin 8 in a conductive connection. About the two connected to the electronics via the circuit board 10 pins 8, the reader ring, the conductive element 12 of the 1-button, and the center pin 6, the circuit is closed, which can discharge, for example, a capacitor of a wake-up and activated the lock electronics. Due to the otherwise mechanical separation between the center pin 6 and pin 8 any moisture may be present between the reading ring 5 and center pin 6, lead to any malfunction of the electronics more.

Abstract

The closure device has reading head whose first and/or second contact surface (5,6) is a spring mounted switch element. The switch element is switched-off in the idle position and is switched-on under the contact pressure of the key (13) for switching of the switching current and transmission of the key information. The first contact surface is a reading ring and the second contact surface is a middle contact pin.

Description

Die Erfindung betrifft eine Verschlussvorrichtung, die schlossseitig einen Lesekopf zum Lesen der Sperrinformation eines Schlüssels aufweist, wobei der Lesekopf eine erste und eine zweite Kontaktfläche aufweist, die mit zugeordneten Kontaktflächen des Schlüssels in Kontakt bringbar sind, wodurch in der Schlosselektronik ein Schaltstrom für den Start einer Aufweckelektronik zum Starten der Sende- und Empfangselektronik eingeschaltet ist.The invention relates to a closure device, the lock side has a read head for reading the locking information of a key, wherein the read head has a first and a second contact surface, which can be brought into contact with associated contact surfaces of the key, whereby in the lock electronics, a switching current for the start of a Wake-up electronics for starting the transmitting and receiving electronics is turned on.

Derartige Verschlussvorrichtungen sind z.B. als I-Button-Reader bekannt und eine Anwendung ist beispielsweise in der österreichischen Patentanmeldung A 1518/2004 beschrieben.Such closure devices are known for example as an I-button reader and an application is for example in the Austrian patent application A 1518/2004 described.

In der Praxis tritt bei derartigen Verschlussvorrichtungen das Problem auf, dass in feuchten Räumen wie z.B. Badeanstalten, Schwimmbädern, Sauna etc. die Feuchtigkeit zu einer Fehlfunktion führt. Beim Einbringen von Feuchtigkeit auf die Kontaktflächen des Lesekopfs führen Kriechströme dazu dass die Schlosselektronik nicht richtig funktioniert. Dies tritt insbesondere dann ein, wenn der Lesekopf mit einer sogenannten Aufweckelektronik verbunden ist, die bewirkt, dass im Ruhezustand das Schloss stromsparend betrieben werden kann, während die stromverbrauchende Sende- und Empfangselektronik erst dann eingeschaltet wird, wenn ein Schlüssel mit dem Lesekopf in Kontakt kommt. Für das Starten der Aufweckelektronik werden z.B. geringe Ströme eines Kondensators verwendet. Dieser Kondensator entlädt sich frühzeitig, wenn Feuchtigkeit zu Kriechströmen führt. Das hier zu lösende Problem ergibt sich also dadurch, dass zwei Kontaktflächen des Lesekopfes an der Oberfläche nahe beieinander liegen und der Feuchtigkeit zugesetzt sind. Zusätzlich zur schleichenden Entladung kommt es auch zu einer erhöhten Korrosion an den Kontaktflächen.In practice, in such closure devices, the problem arises that in damp rooms such as bathing establishments, swimming pools, saunas, etc., the moisture leads to a malfunction. When moisture is introduced onto the contact surfaces of the read head, leakage currents cause the lock electronics to malfunction. This occurs in particular when the reading head is connected to a so-called wake-up electronics, which causes the lock can be operated to save energy while at rest, while the current-consuming transmitting and receiving electronics is only turned on when a key comes into contact with the reading head , For starting the wake-up electronics, for example, low currents of a capacitor are used. This capacitor discharges prematurely when moisture leads to leakage currents. The problem to be solved here thus results from the fact that two contact surfaces of the reading head are close to each other on the surface and are added to the moisture. In addition to the creeping discharge, there is also an increased corrosion at the contact surfaces.

Erfindungsgemäß wird das Problem dadurch gelöst, dass die erste und/oder die zweite Kontaktfläche des Lesekopfes ein gefedertes Schaltelement ist, welches in Ruhestellung ausgeschaltet und unter dem Anpressdruck des Schlüssels zur Schaltung des Schaltstroms und Übertragung der Schlüsselinformation eingeschaltet ist.According to the invention, the problem is solved in that the first and / or the second contact surface of the read head is a spring-loaded switching element, which is turned off in the rest position and turned on under the contact pressure of the key for switching the switching current and transmission of the key information.

Bei dieser erfindungsgemäßen Konstruktion werden die genannten Nachteile prinzipiell dadurch vermieden, dass die beiden Kontaktflächen - ohne Schlüssel - keine Ladung aufweisen. Erst durch Andruck des Schlüssels wird die leitende Verbindung hergestellt und die Potentialdifferenz zwischen beiden Kontaktflächen aufgebaut, sodass über den Schlüssel der Stromfluss und nachfolgend der Datenfluss hergestellt werden kann. Die Aufweckschaltung der Elektronik ist immer in Betrieb.In this construction according to the invention, the disadvantages mentioned are avoided in principle by the fact that the two contact surfaces - without a key - have no charge. Only by pressing the key, the conductive connection is established and built the potential difference between the two contact surfaces, so that via the key of the current flow and subsequently the data flow can be made. The wake-up circuit of the electronics is always in operation.

Weitere Merkmale der Erfindung sind den Ansprüchen, den Zeichnungen und der nachfolgenden Beschreibung zu entnehmen.Further features of the invention can be taken from the claims, the drawings and the following description.

Fig. 1 zeigt eine Explosionsdarstellung eines Lesekopfes einer erfindungsgemäßen Verschlussvorrichtung. Fig. 2 zeigt einen Querschnitt durch einen Lesekopf mit dazugehörigem Schlüssel.1 shows an exploded view of a reading head of a closure device according to the invention. Fig. 2 shows a cross section through a read head with associated key.

Die in Fig. 1 dargestellte Explosionsdarstellung zeigt ausschließlich den Lesekopf. Die erste Kontaktfläche ist durch den Lesering 5 gebildet, der im Türblatt fest verschraubt sein kann. Im Inneren des Leserings 5 sitzt die Isolierplatte 3, in deren Zentralbohrung die zweite Kontaktfläche als Mittelkontaktstift 6 verschiebbar sitzt. Dieser Mittelkontaktstift 6 ist gegenüber der Isolierplatte 3 mittels eines O-Ringes 1 abgedichtet und steht unter dem Druck der Feder 7 über die äußere Oberfläche der Isolierplatte 3 hervor. In Ruhestellung ist der innere Kontaktzapfen 9 des Mittelkontaktstiftes 6 in isolierender Entfernung zu dem Kontaktstift 8, der mit einer zur Schaltelektronik führenden Leiterplatte 10 verbunden ist. Ein weiterer Kontaktstift ragt durch die Leiterplatte 10 und einem weiteren Isolierelement 4 hindurch und steht mit dem Lesering 5 in leitender Verbindung. Zusätzlich befinden sich zwischen den Kontaktstiften 8 und der Leiterplatte 10 jeweils Beilagscheiben 2. In dieser Ruhestellung besteht keine Potentialdifferenz zwischen dem Mittelkontaktstift 6 und dem Lesering, sodass die oben genannten Nachteile nicht auftreten können.The exploded view shown in Fig. 1 shows only the read head. The first contact surface is formed by the reading ring 5, which can be screwed tightly in the door leaf. Inside the reading ring 5 sits the insulating plate 3, in the central bore of the second contact surface as a central contact pin 6 is slidably seated. This center contact pin 6 is sealed with respect to the insulating plate 3 by means of an O-ring 1 and protrudes under the pressure of the spring 7 on the outer surface of the insulating plate 3. In the rest position, the inner contact pin 9 of the center contact pin 6 is at an insulating distance to the contact pin 8, which is connected to a circuit board 10 leading to the switching electronics. Another contact pin protrudes through the printed circuit board 10 and a further insulating member 4 and communicates with the reading ring 5 in a conductive connection. In addition, there are between the contact pins 8 and the circuit board 10 each washers 2. In this rest position, there is no potential difference between the center pin 6 and the reading ring, so that the above-mentioned disadvantages can not occur.

Erst wenn der Schlüssel in Form eines I-Buttons gegen das Mittelkontaktelement und gegen den Druck der Feder 7 in den Lesekopf hineingedrückt wird, kommt es zu einer Kontaktierung zwischen dem Mittelkontaktstift 6 und dem Kontaktstift 8 und damit zur Möglichkeit eines Stromflusses, der letztendlich die beiden Anschlüsse der Elektronik an der Leiterplatte 10 miteinander elektrisch leitend verbindet.Only when the key is pressed in the form of an I-button against the center contact element and against the pressure of the spring 7 in the read head, there is a contact between the center contact pin 6 and the contact pin 8 and thus the possibility of a current flow, which ultimately the two Connections of the electronics to the circuit board 10 electrically conductively connects.

Fig. 2 zeigt einen Querschnitt durch einen zusammengebauten Lesekopf der erfindungsgemäßen Verschlussvorrichtung in Ruhestellung, wobei zwischen Kontaktzapfen 9 des Mittelkontaktstiftes 6 und dem Kontaktstift 8 ein isolierender Abstand besteht. Bringt man nun einen Schlüssel in Form eines I-Buttons in den Lesekopf ein, so wird ein Druck in Richtung 11 auf den Lesekopf ausgeübt, der den Mittelkontaktstift 6 gegen den Druck der Feder 7 mit dem Kontaktstift 8 in leitende Verbindung bringt. Über die beiden mit der Elektronik über die Leiterplatte 10 verbundenen Kontaktstifte 8, den Lesering, dem leitenden Element 12 des 1-Buttons, sowie den Mittelkontaktstift 6, wird der Stromkreis geschlossen, wodurch sich zB ein Kondensator einer Aufweckelektronik entladen kann und die Schlosselektronik aktiviert. Durch die ansonsten mechanische Trennung zwischen Mittelkontaktstift 6 und Kontaktstift 8 kann etwaige Feuchtigkeit die zwischen Lesering 5 und Mittelkontaktstift 6 vorhanden sein kann, zu keinerlei Fehlfunktion der Elektronik mehr führen.Fig. 2 shows a cross section through an assembled read head of the closure device according to the invention in the rest position, wherein there is an insulating distance between the contact pin 9 of the center contact pin 6 and the contact pin 8. If you now bring a key in the form of an I-button in the read head, so a pressure in the direction 11 is exerted on the read head, which brings the center contact pin 6 against the pressure of the spring 7 with the contact pin 8 in a conductive connection. About the two connected to the electronics via the circuit board 10 pins 8, the reader ring, the conductive element 12 of the 1-button, and the center pin 6, the circuit is closed, which can discharge, for example, a capacitor of a wake-up and activated the lock electronics. Due to the otherwise mechanical separation between the center pin 6 and pin 8 any moisture may be present between the reading ring 5 and center pin 6, lead to any malfunction of the electronics more.

Claims (5)

Verschlussvorrichtung, die schlossseitig einen Lesekopf zum Lesen der Sperrinformation eines Schlüssels aufweist, wobei der Lesekopf eine erste und eine zweite außenliegende Kontaktfläche aufweist, die mit zugeordneten Kontaktflächen des Schlüssels in Kontakt bringbar sind, wodurch in der Schlosselektronik ein Schaltstrom, für die Aktivierung einer Aufweckelektronik zum Starten der Sende- und Empfangselektronik, einschaltbar ist, dadurch gekennzeichnet, dass die erste und/oder die zweite Kontaktfläche (5, 6) des Lesekopfes ein gefedertes Schaltelement ist, welches in Ruhestellung ausgeschaltet und unter dem Anpressdruck des Schlüssels (13) zur Schaltung des Schaltstroms und Übertragung der Schlüsselinformation eingeschaltet ist.Closure device, the lock side has a read head for reading the lock information of a key, wherein the read head has a first and a second outer contact surface, which can be brought into contact with associated contact surfaces of the key, whereby in the lock electronics, a switching current for the activation of a wake-up electronics for Starting the transmitting and receiving electronics, can be switched on, characterized in that the first and / or the second contact surface (5, 6) of the read head is a spring-loaded switching element which is turned off in the rest position and under the contact pressure of the key (13) for switching Switching current and transmission of the key information is turned on. Verschlussvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die erste Kontaktfläche (5) ringförmig und die zweite Kontaktfläche (6) in der Mitte des Ringes angeordnet ist.Closure device according to claim 1, characterized in that the first contact surface (5) is annular and the second contact surface (6) is arranged in the middle of the ring. Verschlussvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste und/oder zweite Kontaktfläche (5, 6) jeweils durch mehrere Kontaktflächen gebildet sind.Closure device according to claim 1 or 2, characterized in that the first and / or second contact surface (5, 6) are each formed by a plurality of contact surfaces. Verschlussvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zweite Kontaktfläche durch einen Mittelkontaktstift (6) gebildet ist, der unter Druck der Feder (7) verschiebbar und gegenüber dem Lesering (5) oder der da-zwischen befindlichen Isolierplatte (3) durch eine Dichtung (1) abgedichtet ist.Closure device according to one of claims 1 to 3, characterized in that the second contact surface is formed by a center contact pin (6) displaceable under pressure of the spring (7) and relative to the reading ring (5) or the insulating plate therebetween (3 ) is sealed by a seal (1). Verschlussvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das gefederte Schaltelement aus einem Kontaktstift (8) und einem in Ruhe-stellung durch den Druck einer Feder (7) in einem isolierenden Abstand angeordneten Mittelkontaktstift (6) besteht, wobei sich die Kontaktflächen zwischen Kontaktstift (8) und Mittelkontaktstift (6) im Inneren des Lesekopfs befindet und durch Isolierplatte (3), Isolierelement (4) und/oder die Dichtung (1) gegenüber Umwelteinflüssen abgeschirmt ist.Closure device according to one of claims 1 to 3, characterized in that the sprung switching element consists of a contact pin (8) and an at rest position by the pressure of a spring (7) arranged at an insulating distance center contact pin (6), wherein the Contact surfaces between the contact pin (8) and center contact pin (6) located inside the read head and by insulating plate (3), insulating member (4) and / or the seal (1) is shielded from environmental influences.
EP06008744A 2005-05-03 2006-04-27 Closure device Withdrawn EP1720133A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT7632005 2005-05-03
AT11922005A AT501796B1 (en) 2005-05-03 2005-07-14 CLOSURE DEVICE

Publications (2)

Publication Number Publication Date
EP1720133A2 true EP1720133A2 (en) 2006-11-08
EP1720133A3 EP1720133A3 (en) 2006-12-27

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Application Number Title Priority Date Filing Date
EP06008744A Withdrawn EP1720133A3 (en) 2005-05-03 2006-04-27 Closure device

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AT (1) AT501796B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557637A1 (en) * 1975-12-20 1977-07-07 Kreft Hans Diedrich Electronic lock with finter ring key - has element contg. electronic operating information moulded in hard insulating material
US5322992A (en) * 1992-06-22 1994-06-21 Lynx Systems, Inc. Implement for controlling an electronic lock mechanism
DE19749081A1 (en) * 1997-11-06 1999-05-20 Sicherheit Und Service Inh Kla Electronic-mechanical lock system
US6000609A (en) * 1997-12-22 1999-12-14 Security People, Inc. Mechanical/electronic lock and key therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756341B4 (en) * 1997-12-18 2007-08-23 Marquardt Gmbh Locking system, in particular for motor vehicles
EP1201532A1 (en) * 2000-10-25 2002-05-02 BkTech AG Locking device, utility object comprising such a device, and method for time-limited release of a utility object
AT7270U1 (en) * 2004-05-05 2004-12-27 Sitech Sicherheitstechnik Gmbh BATHBOX LOCK WITH MOTORIZED LOCK

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557637A1 (en) * 1975-12-20 1977-07-07 Kreft Hans Diedrich Electronic lock with finter ring key - has element contg. electronic operating information moulded in hard insulating material
US5322992A (en) * 1992-06-22 1994-06-21 Lynx Systems, Inc. Implement for controlling an electronic lock mechanism
DE19749081A1 (en) * 1997-11-06 1999-05-20 Sicherheit Und Service Inh Kla Electronic-mechanical lock system
US6000609A (en) * 1997-12-22 1999-12-14 Security People, Inc. Mechanical/electronic lock and key therefor

Also Published As

Publication number Publication date
AT501796A1 (en) 2006-11-15
EP1720133A3 (en) 2006-12-27
AT501796B1 (en) 2007-10-15

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