EP1516983B1 - Lock cylinder - Google Patents

Lock cylinder Download PDF

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Publication number
EP1516983B1
EP1516983B1 EP04103192A EP04103192A EP1516983B1 EP 1516983 B1 EP1516983 B1 EP 1516983B1 EP 04103192 A EP04103192 A EP 04103192A EP 04103192 A EP04103192 A EP 04103192A EP 1516983 B1 EP1516983 B1 EP 1516983B1
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EP
European Patent Office
Prior art keywords
lock cylinder
drive device
catch bar
cylinder according
contact surface
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.)
Active
Application number
EP04103192A
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German (de)
French (fr)
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EP1516983A1 (en
Inventor
Gernot Hartmann
Peter Dr. Bickert
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Aug Winkhaus GmbH and Co KG
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Aug Winkhaus GmbH and Co KG
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Publication of EP1516983A1 publication Critical patent/EP1516983A1/en
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Publication of EP1516983B1 publication Critical patent/EP1516983B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0011—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with piezoelectric actuators

Definitions

  • the invention relates to a lock cylinder with a movable core in a housing and a connectable to the core cam, with a locking bar having locking mechanism for selectively locking or unlocking the lock cylinder and with a drive means for moving the locking bolt of a first, the lock cylinder locking position in a second, the lock cylinder unlocking position.
  • a lock cylinder in which the locking mechanism controls the movement of the core relative to the housing is known, for example, from DE 100 20 038 A1.
  • the drive device has an electromagnet for holding the locking bolt in the movement of the core releasing position.
  • the electromagnet is activated when there is an electrical signal corresponding to a release authorization of the lock cylinder. If the signal is not present, a spring element presses the locking bar into the position blocking the movement of the core relative to the housing.
  • a disadvantage of the known lock cylinder that the electromagnet has a very high power consumption, since it must be energized during the entire closing process to keep the locking bolt against the spring force.
  • lock cylinders have become known in practice in which the locking mechanism controls the connection of the core with the cam.
  • lock authorization of the lock cylinder will be the connection made between core and cam and omitted in the absence of locking authorization.
  • the use of an electromagnet leads to a very high energy requirement.
  • the invention is based on the problem of designing a lock cylinder of the type mentioned above so that it has the lowest possible power consumption.
  • the drive device comprises a piezoelectric element, that the piezoelectric element is designed to move a contact surface and that the contact surface engages the locking bolt.
  • the drive device in the simplest case requires only a single piezoelectric element to be connected with two electrical contacts, which drives the locking bolt.
  • the engagement of the contact surface on the locking bar generates a friction which is able to hold the locking bolt in its end positions.
  • the contact surface can be driven by a corresponding control of the piezoelectric element in both directions. This makes it possible to avoid the use of a locking element biasing the spring element and an energization of the piezoelectric element during the opening process.
  • the contact surface can optionally be arranged directly on the piezoelectric element or on a lever connected to the piezoelectric element.
  • the locking cylinder according to the invention therefore requires a particularly low power consumption and is also simple.
  • Drive devices in which a piezoelectric element moves a contact surface for driving a further component are described, for example, in DE 101 41 820 A1 and DE 101 46 703 A1 described in detail, so that reference is made to further disclosure of these documents.
  • Unlocking of the lock cylinder according to the invention by vibrations can be further improved if the direction of force of the spring element points in the first, the lock cylinder locking position.
  • an unlocking of the lock cylinder according to the invention can be avoided simply by the locking bar in the intended installation position of the lock cylinder in the lower position in the core locking position.
  • a drive of the locking bar requires according to another advantageous embodiment of the invention, a particularly low design effort, if the drive device is designed as an elongated, attached to one end rod and carries on the other end of the contact surface and when the piezoelectric element between the two ends of the rod is.
  • the contact surface can be moved over the blocking bolt in an arcuate path when the piezoelement is energized.
  • a power consumption in the holder of the locking bolt in the intended position can be particularly low according to another advantageous embodiment of the invention hold when the contact surface is biased in at least one of the positions in the de-energized state of the piezoelectric element against the locking bar.
  • the locking bolt is held by the drive device in at least one of the positions.
  • Clamping the drive device can be easily avoided according to another advantageous embodiment of the invention, when the rod-shaped drive device is inclined relative to the direction of movement of the locking bolt.
  • Blocking the movement of the blocking element by abutting one end of the rod-shaped drive device can be easily avoided according to another advantageous development of the invention, when the rod-shaped drive means engages around the locking bar laterally.
  • the contact surface facing away from the end of the rod-shaped drive means comprises a spring element and when the spring element is fixed to the housing. Furthermore, the spring element allows a provided bias of the contact surface against the locking bolt and a tolerance compensation between the components of the drive device and the locking mechanism.
  • the assembly of the lock cylinder according to the invention is particularly simple if the housing has a pocket for receiving the drive device.
  • all components of the drive device can be and arrange the locking device within the housing of the lock cylinder according to the invention.
  • FIG. 1 shows a sectional view through a double-profile lock cylinder provided for a mortise lock.
  • the lock cylinder has a housing 1 with two housing parts 2, 3 connected to one another.
  • the housing parts 2, 3 each serve to receive a rotatable by means of a key, not shown, core 4, 5.
  • the cores 4, 5 can be rotatably coupled with a cam 6 and blocked by a locking mechanism 7.
  • the locking mechanism 7 is controlled in response to a locking authorization of the key via a drive device 8 and has a sliding in a guide 9 of the housing 1 locking bolt 10.
  • the locking bar 10 penetrates in the position shown in a recess 11 of the cores 4 a. This indicates the locked position. Furthermore, the locking bar 10 is held by the drive device 8 in its illustrated position.
  • the housing 1 has a pocket 13 for receiving the drive device 8.
  • the drive device 8 is rod-shaped
  • the contact surface 14 pivots, displacing the locking bar 10 into or out of the recess 11 of the core 4.
  • the trajectory of the contact surface 14 is shown in phantom in the drawing for clarity.
  • the movement of the contact surface 14 extends approximately in an elliptical path. By several such movements, the locking bar 10 can be gradually moved over a long distance. Friction prevents the locking bolt 10 from falling back.
  • FIG. 2 shows a further embodiment of the lock cylinder, in which a drive device 16 is connected to the housing 1 via a spring element 17.
  • the drive device 16 has a piezoelectric element 18 which holds a displaceably guided locking bar 19 of a locking device 20 in the position shown. In the illustrated position, the locking bar 19 is located outside the recess 11 of the core 4. The lock cylinder is therefore in the unlocked position.
  • the locking bolt 19 Upon energization of the piezoelectric element 18, the locking bolt 19 is displaced into the recess 11 of the core 4 and thus establishes a positive connection between the housing 1 and the core 4.
  • the trajectory of a deflected by the piezoelectric element 18 contact surface 21 is shown in phantom.
  • a spring element 12 supporting the locking bolt 19 has a spring force corresponding exclusively to the weight of the locking bolt 19 and prevents the locking bolt 19 from coming out of the recess 11 of the core 4 due to vibrations.

Abstract

The lock has a housing (1) and key operated cylinders (4,5) whose rotation is inhibited by a bolt (10) normally engaging a recess (11) in the cylinder. A piezoelectric element (15) in a cavity (13) causes the bolt to withdraw when electrically activated.

Description

Die Erfindung betrifft einen Schließzylinder mit einem in einem Gehäuse bewegbaren Kern und einem mit dem Kern verbindbaren Schließbart, mit einem einen Sperrriegel aufweisenden Sperrmechanismus zur wahlweisen Verriegelung oder Entriegelung des Schließzylinders und mit einer Antriebseinrichtung zur Bewegung des Sperrriegels von einer ersten, den Schließzylinder verriegelnden Stellung in eine zweite, den Schließzylinder entriegelnden Stellung.The invention relates to a lock cylinder with a movable core in a housing and a connectable to the core cam, with a locking bar having locking mechanism for selectively locking or unlocking the lock cylinder and with a drive means for moving the locking bolt of a first, the lock cylinder locking position in a second, the lock cylinder unlocking position.

Ein Schließzylinder, bei dem der Sperrmechanismus die Bewegung des Kerns gegenüber dem Gehäuse steuert, ist beispielsweise aus der DE 100 20 038 A1 bekannt. Hierbei hat die Antriebseinrichtung einen Elektromagneten zur Halterung des Sperrriegels in der die Bewegung des Kerns freigebenden Stellung. Der Elektromagnet wird angesteuert, wenn ein eine Freigabeberechtigung des Schließzylinders entsprechendes elektrisches Signal vorliegt. Unterbleibt das Signal, drückt ein Federelement den Sperrriegel in die die Bewegung des Kerns gegenüber dem Gehäuse blockierende Stellung vor. Nachteilig bei dem bekannten Schließzylinder ist, dass der Elektromagnet einen sehr hohen Strombedarf hat, da er während des gesamten Schließvorganges bestromt werden muss, um den Sperrriegel gegen die Federkraft zu halten.A lock cylinder in which the locking mechanism controls the movement of the core relative to the housing is known, for example, from DE 100 20 038 A1. Here, the drive device has an electromagnet for holding the locking bolt in the movement of the core releasing position. The electromagnet is activated when there is an electrical signal corresponding to a release authorization of the lock cylinder. If the signal is not present, a spring element presses the locking bar into the position blocking the movement of the core relative to the housing. A disadvantage of the known lock cylinder that the electromagnet has a very high power consumption, since it must be energized during the entire closing process to keep the locking bolt against the spring force.

Weiterhin sind aus der Praxis Schließzylinder bekannt geworden, bei denen der Sperrmechanismus die Verbindung des Kerns mit dem Schließbart steuert. Bei einer gegebenen Schließberechtigung des Schließzylinders wird die Verbindung zwischen Kern und Schließbart hergestellt und unterbleibt bei fehlender Schließberechtigung. Auch bei diesem Schließzylinder führt der Einsatz eines Elektromagneten zu einem sehr hohen Energiebedarf.Furthermore, lock cylinders have become known in practice in which the locking mechanism controls the connection of the core with the cam. For a given lock authorization of the lock cylinder will be the connection made between core and cam and omitted in the absence of locking authorization. Even with this lock cylinder, the use of an electromagnet leads to a very high energy requirement.

Der Erfindung liegt das Problem zugrunde, einen Schließzylinder der eingangs genannten Art so zu gestalten, dass er einen möglichst geringen Strombedarf hat.The invention is based on the problem of designing a lock cylinder of the type mentioned above so that it has the lowest possible power consumption.

Dieses Problem wird erfindungsgemäß dadurch gelöst, dass die Antriebseinrichtung ein Piezoelement aufweist, dass das Piezoelement zur Bewegung einer Kontaktfläche ausgebildet ist und dass die Kontaktfläche an dem Sperrriegel angreift.This problem is inventively solved in that the drive device comprises a piezoelectric element, that the piezoelectric element is designed to move a contact surface and that the contact surface engages the locking bolt.

Durch diese Gestaltung benötigt die Antriebseinrichtung im einfachsten Fall nur ein einzelnes, mit zwei elektrischen Kontakten zu verbindendes Piezoelement, welches den Sperrriegel antreibt. Das Angreifen der Kontaktfläche an dem Sperrriegel erzeugt eine Reibung, die den Sperrriegel in seinen Endstellungen zu halten vermag. Weiterhin kann die Kontaktfläche durch eine entsprechende Ansteuerung des Piezoelementes in beide Richtungen angetrieben werden. Damit lässt sich der Einsatz eines den Sperrriegel vorspannenden Federelementes und eine Bestromung des Piezoelementes während des Öffnungsvorganges vermeiden. Die Kontaktfläche kann dabei wahlweise unmittelbar auf dem Piezoelement oder auf einem mit dem Piezoelement verbundenen Hebel angeordnet sein. Der erfindungsgemäße Schließzylinder erfordert daher einen besonders geringen Strombedarf und ist zudem einfach aufgebaut. Antriebseinrichtungen, bei denen ein Piezoelement eine Kontaktfläche zum Antrieb eines weiteren Bauteils bewegt, sind beispielsweise in der DE 101 41 820 A1 und der DE 101 46 703 A1 ausführlich beschrieben, so dass zur weiteren Offenbarung auf diese Schriften verwiesen wird.Due to this design, the drive device in the simplest case requires only a single piezoelectric element to be connected with two electrical contacts, which drives the locking bolt. The engagement of the contact surface on the locking bar generates a friction which is able to hold the locking bolt in its end positions. Furthermore, the contact surface can be driven by a corresponding control of the piezoelectric element in both directions. This makes it possible to avoid the use of a locking element biasing the spring element and an energization of the piezoelectric element during the opening process. The contact surface can optionally be arranged directly on the piezoelectric element or on a lever connected to the piezoelectric element. The locking cylinder according to the invention therefore requires a particularly low power consumption and is also simple. Drive devices in which a piezoelectric element moves a contact surface for driving a further component are described, for example, in DE 101 41 820 A1 and DE 101 46 703 A1 described in detail, so that reference is made to further disclosure of these documents.

Kräfte zur Bewegung des Sperrriegels lassen sich gemäß einer vorteilhaften Weiterbildung der Erfindung besonders gering halten, wenn ein Federelement zur Vorspannung des Sperrriegels in einer der Stellungen eine ausschließlich zum Ausgleich der Gewichtskraft des Sperrriegels bemessene Federkraft hat.Forces of movement of the locking bolt can be kept particularly low according to an advantageous embodiment of the invention, when a spring element for biasing the locking bolt in one of the positions has an exclusively designed to compensate for the weight of the locking bolt spring force.

Ein Entriegeln des erfindungsgemäßen Schließzylinders durch Erschütterungen lässt sich weiter verbessern, wenn die Kraftrichtung des Federelementes in die erste, den Schließzylinder verriegelnde Stellung weist.Unlocking of the lock cylinder according to the invention by vibrations can be further improved if the direction of force of the spring element points in the first, the lock cylinder locking position.

Weiterhin lässt sich ein Entriegeln des erfindungsgemäßen Schließzylinders einfach dadurch vermeiden, wenn sich der Sperrriegel in der vorgesehenen Einbaulage des Schließzylinders in unterer Position in der den Kern verriegelnden Stellung befindet.Furthermore, an unlocking of the lock cylinder according to the invention can be avoided simply by the locking bar in the intended installation position of the lock cylinder in the lower position in the core locking position.

Ein Antrieb des Sperrriegels erfordert gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einen besonders geringen konstruktiven Aufwand, wenn die Antriebseinrichtung als langgestreckter, mit einem Ende befestigter Stab ausgebildet ist und auf dem anderen Ende die Kontaktfläche trägt und wenn das Piezoelement zwischen den beiden Enden des Stabes angeordnet ist. Durch diese Gestaltung lässt sich die Kontaktfläche bei einer Bestromung des Piezoelements über den Sperrriegel in einer bogenförmigen Bahn bewegen.A drive of the locking bar requires according to another advantageous embodiment of the invention, a particularly low design effort, if the drive device is designed as an elongated, attached to one end rod and carries on the other end of the contact surface and when the piezoelectric element between the two ends of the rod is. As a result of this design, the contact surface can be moved over the blocking bolt in an arcuate path when the piezoelement is energized.

Ein Stromverbrauch bei der Halterung des Sperrriegels in der vorgesehenen Stellung lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung besonders gering halten, wenn die Kontaktfläche in zumindest einer der Stellungen im unbestromten Zustand des Piezoelements gegen den Sperrriegel vorgespannt ist. Durch diese Gestaltung wird der Sperrriegel von der Antriebseinrichtung in zumindest einer der Stellungen festgehalten.A power consumption in the holder of the locking bolt in the intended position can be particularly low according to another advantageous embodiment of the invention hold when the contact surface is biased in at least one of the positions in the de-energized state of the piezoelectric element against the locking bar. By this design, the locking bolt is held by the drive device in at least one of the positions.

Ein Klemmen der Antriebseinrichtung lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach vermeiden, wenn die stabförmige Antriebseinrichtung gegenüber der Bewegungsrichtung des Sperrriegels geneigt ist.Clamping the drive device can be easily avoided according to another advantageous embodiment of the invention, when the rod-shaped drive device is inclined relative to the direction of movement of the locking bolt.

Eine Blockierung der Bewegung des Sperrelementes durch ein Anstoßen eines Endes der stabförmigen Antriebseinrichtung lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach vermeiden, wenn die stabförmige Antriebseinrichtung den Sperrriegel seitlich umgreift.Blocking the movement of the blocking element by abutting one end of the rod-shaped drive device can be easily avoided according to another advantageous development of the invention, when the rod-shaped drive means engages around the locking bar laterally.

Zur weiteren Verringerung der Gefahr eines Verklemmens der Antriebseinrichtung trägt es gemäß einer anderen vorteilhaften Weiterbildung der Erfindung bei, wenn das der Kontaktfläche abgewandte Ende der stabförmigen Antriebseinrichtung ein Federelement aufweist und wenn das Federelement an dem Gehäuse befestigt ist. Weiterhin ermöglicht das Federelement eine vorgesehene Vorspannung der Kontaktfläche gegen den Sperrriegel und einen Toleranzausgleich zwischen den Bauteilen der Antriebseinrichtung und des Sperrmechanismus.To further reduce the risk of jamming of the drive device, it contributes according to another advantageous embodiment of the invention, when the contact surface facing away from the end of the rod-shaped drive means comprises a spring element and when the spring element is fixed to the housing. Furthermore, the spring element allows a provided bias of the contact surface against the locking bolt and a tolerance compensation between the components of the drive device and the locking mechanism.

Die Montage des erfindungsgemäßen Schließzylinders gestaltet sich besonders einfach, wenn das Gehäuse eine Tasche zur Aufnahme der Antriebseinrichtung hat. Durch diese Gestaltung lassen sich sämtliche Bauteile der Antriebseinrichtung und der Sperreinrichtung innerhalb des Gehäuses des erfindungsgemäßen Schließzylinders anordnen.The assembly of the lock cylinder according to the invention is particularly simple if the housing has a pocket for receiving the drive device. By this design, all components of the drive device can be and arrange the locking device within the housing of the lock cylinder according to the invention.

Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind zwei davon in der Zeichnung dargestellt und werden nachfolgend beschrieben. Diese zeigt in

Fig.1
einen Schnittdarstellung durch einen erfindungsgemäßen Schließzylinder,
Fig.2
eine Schnittdarstellung durch eine weitere Ausführungsform des erfindungsgemäßen Schließzylinders.
The invention allows numerous embodiments. To further clarify its basic principle, two of them are shown in the drawing and will be described below. This shows in
Fig.1
a sectional view through a lock cylinder according to the invention,
Fig.2
a sectional view through a further embodiment of the lock cylinder according to the invention.

Figur 1 zeigt eine Schnittdarstellung durch einen für ein Einsteckschloss vorgesehenen Doppelprofil-Schließzylinder. Der Schließzylinder weist ein Gehäuse 1 mit zwei miteinander verbundenen Gehäuseteile 2, 3 auf. Die Gehäuseteile 2, 3 dienen jeweils zur Aufnahme eines mittels eines nicht dargestellten Schlüssels drehbaren Kerns 4, 5. Die Kerne 4, 5 lassen sich mit einem Schließbart 6 drehfest kuppeln und von einem Sperrmechanismus 7 blockieren. Der Sperrmechanismus 7 wird in Abhängigkeit einer Schließberechtigung des Schlüssels über eine Antriebseinrichtung 8 angesteuert und hat einen in einer Führung 9 des Gehäuses 1 verschiebbaren Sperrriegel 10. Der Sperrriegel 10 dringt in der eingezeichneten Stellung in eine Ausnehmung 11 eines der Kerne 4 ein. Dies kennzeichnet die verriegelte Stellung. Weiterhin wird der Sperrriegel 10 von der Antriebseinrichtung 8 in seiner dargestellten Lage gehalten.FIG. 1 shows a sectional view through a double-profile lock cylinder provided for a mortise lock. The lock cylinder has a housing 1 with two housing parts 2, 3 connected to one another. The housing parts 2, 3 each serve to receive a rotatable by means of a key, not shown, core 4, 5. The cores 4, 5 can be rotatably coupled with a cam 6 and blocked by a locking mechanism 7. The locking mechanism 7 is controlled in response to a locking authorization of the key via a drive device 8 and has a sliding in a guide 9 of the housing 1 locking bolt 10. The locking bar 10 penetrates in the position shown in a recess 11 of the cores 4 a. This indicates the locked position. Furthermore, the locking bar 10 is held by the drive device 8 in its illustrated position.

Das Gehäuse 1 hat eine Tasche 13 zur Aufnahme der Antriebseinrichtung 8. Die Antriebseinrichtung 8 ist stabförmig gestaltet und hat ein eine an den Sperrriegel 10 angreifende Kontaktfläche 14 bewegendes Piezoelement 15. Bei einer Bestromung des Piezoelements 15 verschwenkt die Kontaktfläche 14 und verschiebt dabei den Sperrriegel 10 in die Ausnehmung 11 des Kerns 4 oder aus dieser heraus. Die Bewegungsbahn der Kontaktfläche 14 ist zur Verdeutlichung in der Zeichnung strichpunktiert dargestellt. Die Bewegung der Kontaktfläche 14 verläuft etwa in einer elliptischen Bahn. Durch mehrere solcher Bewegungen kann der Sperrriegel 10 schrittweise über einen großen Weg verschoben werden. Reibung verhindert ein Zurückfallen des Sperrriegels 10.The housing 1 has a pocket 13 for receiving the drive device 8. The drive device 8 is rod-shaped When the piezoelectric element 15 is energized, the contact surface 14 pivots, displacing the locking bar 10 into or out of the recess 11 of the core 4. The trajectory of the contact surface 14 is shown in phantom in the drawing for clarity. The movement of the contact surface 14 extends approximately in an elliptical path. By several such movements, the locking bar 10 can be gradually moved over a long distance. Friction prevents the locking bolt 10 from falling back.

Figur 2 zeigt eine weitere Ausführungsform des Schließzylinders, bei dem eine Antriebseinrichtung 16 über ein Federelement 17 mit dem Gehäuse 1 verbunden ist. Die Antriebseinrichtung 16 hat ein Piezoelement 18 welches einen verschieblich geführten Sperrriegel 19 einer Sperreinrichtung 20 in der dargestellten Lage hält. In der dargestellten Lage befindet sich der Sperrriegel 19 außerhalb der Ausnehmung 11 des Kerns 4. Der Schließzylinder befindet sich daher in der entriegelten Stellung. Bei einer Bestromung des Piezoelements 18 wird der Sperrriegel 19 in die Ausnehmung 11 des Kerns 4 verschoben und stellt damit einen Formschluss zwischen dem Gehäuse 1 und dem Kern 4 her. Zur Verdeutlichung ist die Bewegungsbahn einer von dem Piezoelement 18 ausgelenkten Kontaktfläche 21 strichpunktiert dargestellt. Ein den Sperrriegel 19 abstützendes Federelement 12 hat eine ausschließlich der Gewichtskraft des Sperrriegels 19 entsprechende Federkraft und verhindert, dass der Sperrriegel 19 durch Erschütterungen aus der Ausnehmung 11 des Kerns 4 heraus gelangt.FIG. 2 shows a further embodiment of the lock cylinder, in which a drive device 16 is connected to the housing 1 via a spring element 17. The drive device 16 has a piezoelectric element 18 which holds a displaceably guided locking bar 19 of a locking device 20 in the position shown. In the illustrated position, the locking bar 19 is located outside the recess 11 of the core 4. The lock cylinder is therefore in the unlocked position. Upon energization of the piezoelectric element 18, the locking bolt 19 is displaced into the recess 11 of the core 4 and thus establishes a positive connection between the housing 1 and the core 4. For clarification, the trajectory of a deflected by the piezoelectric element 18 contact surface 21 is shown in phantom. A spring element 12 supporting the locking bolt 19 has a spring force corresponding exclusively to the weight of the locking bolt 19 and prevents the locking bolt 19 from coming out of the recess 11 of the core 4 due to vibrations.

Claims (12)

  1. Lock cylinder comprising a core which may be moved in a housing and a locking bit which may be connected to the core, comprising a catch mechanism having a catch bar for selectively engaging or disengaging the lock cylinder, and comprising a drive device for moving the catch bar from a first position, engaging the lock cylinder, into a second position, disengaging the lock cylinder, characterised in that the drive device (8, 16) comprises a piezo element (15, 18), in that the piezo element (15, 18) is configured for moving a contact surface (14, 21), and in that the contact surface (14, 21) acts on the catch bar (10, 19).
  2. Lock cylinder according to Claim 1, characterised in that the drive device (8, 16) is configured as a rod or bender mounted at both ends and comprising the contact surface between the bearing parts preferably in the central region.
  3. Lock cylinder according to Claim 1, characterised in that a spring element (12) for biasing the catch bar (10) in one of the positions has a force determined exclusively for compensating the weight of the catch bar (10).
  4. Lock cylinder according to either Claim 1 or Claim 2, characterised in that the direction of force of the spring element (12) points into the first position engaging the lock cylinder.
  5. Lock cylinder according to at least one of the preceding claims, characterised in that, in the provided fitting position of the lock cylinder (the upper position), the catch bar (10) is in the position engaging the core.
  6. Lock cylinder according to at least one of the preceding claims, characterised in that the drive device (8, 16) is configured as an elongate rod or bender fastened at one end and, on the other end, carries the contact surface (14, 21), and in that the piezo element (15, 18) is arranged between the two ends of the rod.
  7. Lock cylinder according to at least one of the preceding claims, characterised in that, in at least one of the positions, the contact surface (14, 21) is biased with respect to the catch bar (10, 19) in the unpowered state of the piezo element (15, 18).
  8. Lock cylinder according to at least one of the preceding claims, characterised in that the rod-shaped drive device (8, 16) is inclined toward the direction of movement of the catch bar (10, 19).
  9. Lock cylinder according to at least one of the preceding claims, characterised in that the rod-shaped drive device (8, 16) laterally encompasses the catch bar (10, 19).
  10. Lock cylinder according to at least one of the preceding claims, characterised in that the end of the rod-shaped drive device (16) that is remote from the contact surface (21) comprises a spring element (17), and in that the spring element (17) is fastened to the housing (1).
  11. Lock cylinder according to at least one of the preceding claims, characterised in that the housing (1) has a pocket (13) for receiving the drive device (8, 16) and/or the catch bar (10, 19).
  12. Lock cylinder according to at least one of the preceding claims, characterised in that the drive device (8, 16) and the catch bar (10, 19) form a module.
EP04103192A 2003-09-18 2004-07-06 Lock cylinder Active EP1516983B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343109 2003-09-18
DE10343109A DE10343109A1 (en) 2003-09-18 2003-09-18 lock cylinder

Publications (2)

Publication Number Publication Date
EP1516983A1 EP1516983A1 (en) 2005-03-23
EP1516983B1 true EP1516983B1 (en) 2006-06-21

Family

ID=34177804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04103192A Active EP1516983B1 (en) 2003-09-18 2004-07-06 Lock cylinder

Country Status (4)

Country Link
EP (1) EP1516983B1 (en)
AT (1) ATE331105T1 (en)
DE (2) DE10343109A1 (en)
ES (1) ES2266993T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2287424A2 (en) 2009-08-17 2011-02-23 Aug. Winkhaus GmbH & Co. KG Locking cylinder

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DE102006004629B4 (en) * 2006-01-31 2007-12-06 Faurecia Innenraum Systeme Gmbh storage compartment
DE102006031233B4 (en) * 2006-07-06 2012-02-16 Deutsches Zentrum für Luft- und Raumfahrt e.V. Actuator with a series connection of a linear actuator and a spring
CH699726B1 (en) * 2006-11-16 2010-04-30 Kaba Ag Closing device.
DE102007011554B4 (en) * 2007-03-09 2009-02-12 Meister, Klaus, Dr. Coupling unit for electronic locking systems
AT504333B8 (en) * 2007-06-19 2008-09-15 Evva Werke DEVICE FOR LOCKING A LOCK
AT507583B1 (en) * 2008-12-05 2010-12-15 Evva Sicherheitstechnologie LOCKS
FR3025236B1 (en) * 2014-09-02 2017-12-15 Cogelec LOCK CYLINDER
CN105545095B (en) * 2016-01-29 2017-12-01 广西大学 A kind of theftproof lock of the fixation rotation cam with electromagnet
DE102018108116B4 (en) 2018-04-05 2023-04-27 J.D. Geck Gmbh Shopping cart deposit lock

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Publication number Priority date Publication date Assignee Title
DE3208818C2 (en) * 1982-03-11 1985-11-07 Fa. Aug. Winkhaus, 4404 Telgte Electrically unlockable lock with local power supply and piezoelectric locking bolt
JPH0673930A (en) * 1992-08-11 1994-03-15 Kokusai Gijutsu Kaihatsu Kk Cylinder lock
DE4234323A1 (en) * 1992-10-12 1994-04-14 Schreiber Hans Electronically controlled lock operating system - has active key transmitting EEPROM programmed code via fibre-optic conductors for motorised latch release and manual unlocking
DE19907654A1 (en) * 1999-02-23 2000-08-24 Wilka Schliestechnik Gmbh Lock cylinder with electromagnetically actuated locking pin
DE10020038A1 (en) * 2000-04-22 2001-10-25 Winkhaus Fa August Electromagnetically activatable locking mechanism
DE10141820A1 (en) * 2001-08-27 2003-03-20 Elliptec Resonant Actuator Ag Piezomotor with copper electrodes
DE10146703A1 (en) * 2001-09-21 2003-04-10 Elliptec Resonant Actuator Ag Piezomotor with guide
DE10230953A1 (en) * 2002-07-10 2004-01-22 Aug. Winkhaus Gmbh & Co. Kg Locking mechanism, especially for a lock cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2287424A2 (en) 2009-08-17 2011-02-23 Aug. Winkhaus GmbH & Co. KG Locking cylinder
DE102009028599A1 (en) 2009-08-17 2011-02-24 Aug. Winkhaus Gmbh & Co. Kg lock cylinder

Also Published As

Publication number Publication date
ATE331105T1 (en) 2006-07-15
DE10343109A1 (en) 2005-04-21
EP1516983A1 (en) 2005-03-23
ES2266993T3 (en) 2007-03-01
DE502004000812D1 (en) 2006-08-03

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