EP3045619A1 - Magnet assembly for use in a lock and key system - Google Patents
Magnet assembly for use in a lock and key system Download PDFInfo
- Publication number
- EP3045619A1 EP3045619A1 EP16150842.9A EP16150842A EP3045619A1 EP 3045619 A1 EP3045619 A1 EP 3045619A1 EP 16150842 A EP16150842 A EP 16150842A EP 3045619 A1 EP3045619 A1 EP 3045619A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnet
- key
- adhesive
- arrangement according
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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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
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
- E05B47/0045—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets keys with permanent magnets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/16—Use of special materials for parts of locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/26—Use of special materials for keys
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/16—Use of special materials for parts of locks
- E05B15/1607—Adhesive
Definitions
- the invention relates to a magnet arrangement for use in a lock - key system, wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuating or locking member or a permanent magnet in the key acts on magnetizable actuating or locking member to release a locking operation or lock.
- the object of the invention is to provide a magnet assembly that excludes this type of preparation of a key copy.
- a magnet arrangement for use in a lock-key system wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuating or locking member or a permanent magnet in the key acts on magnetizable actuating or locking member to release or block a closing operation, characterized, in that the permanent magnet is fastened in a recess in the key shank by means of an adhesive and consists of a material which is subject to mechanical or temperature-induced damage prior to the mechanical or temperature-induced cancellation of the holding force of the adhesive.
- the properties of the adhesive are chosen so that it secures the magnet in its recess in or on the key shank in the hardened or hardened state so that a separation or expression is not possible.
- holding force is meant the material strength, which has an effect on shearing or the adhesive force.
- the safety can be further increased if an undercut is provided in the case of a magnet inserted into a recess in the key shaft by an undercut on the magnet and the peripheral wall of the recess.
- the gluing of the permanent magnet can take place in such a way that it is glued to its side surfaces and / or its bottom surface in the recess of the key shank.
- a magnet of NdFeB (neodymium-iron-boron) may be mentioned whose destruction temperature is for example between 80-120 ° C.
- NdFeB neodymium-iron-boron
- the edge layers of a surface-coated magnet may have a lower holding force on the core material of the magnet than that of the adhesive on the edge layer or recess . This leads to the fact that when trying to push the magnet out of the recess, the edge layer from the rest separates the magnet and thus the magnet is destroyed altogether.
- FIGS. 1 to 3 only schematically key only with the features of the invention.
- FIG. 1 In the execution after FIG. 1 is in the key shank 2 of the key 1, a through hole provided in which a magnet 3 is glued.
- the adhesive connection is indicated by 4 and is located on the outer circumference of the magnet. Deviating from that, in the case of FIG. 2 illustrated embodiment only provided a blind bore, in which then the magnet 3 - as indicated by 4 - is glued.
- a through hole in the shaft 2 is provided, but in addition has an undercut 5.
- the adhesive connection is also denoted by 4.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Die Erfindung betrifft eine Magnetanordnung zur Anwendung in einem Schloss-Schlüssel-System, wobei ein Permanent-Magnet im Schlüssel mit einem zugeordneten zweiten Magneten oder Ferromagneten im Zylinderkern zusammenwirkt, der seinerseits auf ein Stell- oder Sperrglied einwirkt oder ein Permanent-Magnet im Schlüssel auf magnetisierbares Stell- oder Sperrglied einwirkt, um einen Schließvorgang freizugeben oder zu sperren, dass der Permanent-Magnet in einer Ausnehmung im Schlüsselschaft mittels eines Klebers befestigt ist und aus einem Material besteht, das mechanisch oder temperaturbedingt vor der mechanisch oder temperaturbedingten Aufhebung der Haltekraft des Klebers einer Zerstörung unterliegt.The invention relates to a magnet assembly for use in a lock-key system, wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuating or locking member or a permanent magnet in the key magnetizable actuator or locking member acts to release or lock a closing operation, that the permanent magnet is secured in a recess in the key shank by means of an adhesive and consists of a material that mechanically or temperature before the mechanical or temperature-related cancellation of the holding force of the adhesive subject to destruction.
Description
Die Erfindung betrifft eine Magnetanordnung zur Anwendung in einem Schloss - Schlüssel - System,
wobei ein Permanent - Magnet im Schlüssel mit einem zugeordneten zweiten Magneten oder Ferromagneten im Zylinderkern zusammenwirkt, der seinerseits auf ein Stell- oder Sperrglied einwirkt oder ein Permanent - Magnet im Schlüssel auf magnetisierbares Stell- oder Sperrglied einwirkt, um einen Schließvorgang freizugeben oder zu sperren.The invention relates to a magnet arrangement for use in a lock - key system,
wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuating or locking member or a permanent magnet in the key acts on magnetizable actuating or locking member to release a locking operation or lock.
Schließsysteme, bei denen Magneten im Schlüssel zu Einsatz kommen sind aus der Patentliteratur in vielfältiger Ausführung bekannt.Locking systems in which magnets are used in the key are known from the patent literature in a variety of designs.
So beschreibt beispielsweise die
In der Praxis bereitet die Anfertigung von Nachschlüsseln, wenn sie illegal erfolgt, große Probleme.
Im Einzelfall ist es aber bei Magnetschlüsseln nicht oder nur unter großen Mühen möglich, die Codierung eines Magneten zu kopieren, also einen Magneten herzustellen, dessen Magnetisierung dem Original entspricht.In practice, making duplicate keys, if done illegally, creates big problems.
In individual cases, it is not possible or only with great effort to copy the code of a magnet, ie to produce a magnet whose magnetization corresponds to the original, with magnetic keys.
Da die Magneten im Allgemeinen nur in den Schlüsselschaft eingepresst sind, kann man natürlich diesen Herausdrücken und in einen nachgemachten Schlüssel einsetzen. Die Methode wird auch als "Transplantation" bezeichnet.Since the magnets are generally only pressed into the key shank, you can of course use this pushing out and into a counterfeit key. The method is also called "transplantation".
Aufgabe der Erfindung ist es, eine Magnetanordnung bereitzustellen, die diese Art der Anfertigung einer Schlüsselkopie ausschließt.The object of the invention is to provide a magnet assembly that excludes this type of preparation of a key copy.
Gelöst wird diese Aufgabe erfindungsgemäß mit einer Magnetanordnung zur Anwendung in einem Schloss - Schlüssel - System,
wobei ein Permanent - Magnet im Schlüssel mit einem zugeordneten zweiten Magneten oder Ferromagneten im Zylinderkern zusammenwirkt der seinerseits auf ein Stell- oder Sperrglied einwirkt oder ein Permanent - Magnet im Schlüssel auf magnetisierbares Stell- oder Sperrglied einwirkt, um einen Schließvorgang freizugeben oder zu sperren,
dadurch gekennzeichnet,
dass der Permanent- Magnet in einer Ausnehmung im Schlüsselschaft mittels eines Klebers befestigt ist und aus einem Material besteht, dass mechanisch oder temperaturbedingt vor der mechanisch oder temperaturbedingten Aufhebung der Haltekraft des Klebers einer Zerstörung unterliegt.This object is achieved according to the invention with a magnet arrangement for use in a lock-key system,
wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuating or locking member or a permanent magnet in the key acts on magnetizable actuating or locking member to release or block a closing operation,
characterized,
in that the permanent magnet is fastened in a recess in the key shank by means of an adhesive and consists of a material which is subject to mechanical or temperature-induced damage prior to the mechanical or temperature-induced cancellation of the holding force of the adhesive.
Die Eigenschaften des Klebstoffes sind so gewählt, dass er im ausgehärteten oder abgebundenen Zustand den Magneten in seiner Ausnehmung im oder am Schlüsselschaft so sichert, dass ein Abtrennen oder Ausdrücken nicht möglich ist.The properties of the adhesive are chosen so that it secures the magnet in its recess in or on the key shank in the hardened or hardened state so that a separation or expression is not possible.
An sich kann jede Klebeverbindung durch hohe Temperaturen zerstört werden.By itself, any adhesive bond can be destroyed by high temperatures.
Wird dies aber bei der erfindungsgemäßen Lösung versucht, dann führt dies zu einer Zerstörung des Magnetmaterials, weil der Erweichungspunkt oder- bereich und damit die Aufhebung seiner Haltekraft so auf das Magnetmaterial abgestimmt ist, dass die Zerstörung des Magnetmaterials einsetzt bevor der Kleber seine Haltekraft verliert und ein Abtrennen oder Ausdrücken des Magneten möglich ist.However, if this is attempted in the inventive solution, then this leads to destruction of the magnetic material, because the softening point or area and thus the cancellation of its holding power is tuned to the magnetic material that the destruction of the magnetic material begins before the adhesive loses its holding power and a separation or expressions of the magnet is possible.
Unter "Haltekraft" wird dabei die Materialfestigkeit verstanden, die auf ein Abscheren bzw. die Haftkraft Einfluss hat.By "holding force" is meant the material strength, which has an effect on shearing or the adhesive force.
Die Sicherheit kann im Übrigen noch erhöht werden, wenn bei einem in eine Ausnehmung im Schlüsselschaft eingesetzten Magneten durch eine Hinterschneidung am Magneten und der Umfangswand der Ausnehmung eine Hinterschneidung vorgesehen ist.Incidentally, the safety can be further increased if an undercut is provided in the case of a magnet inserted into a recess in the key shaft by an undercut on the magnet and the peripheral wall of the recess.
Das Verkleben des Permanent - Magneten kann so erfolgen, dass er an seinen Seitenflächen und/oder seiner Bodenfläche in der Ausnehmung des Schlüsselschaftes verklebt ist.The gluing of the permanent magnet can take place in such a way that it is glued to its side surfaces and / or its bottom surface in the recess of the key shank.
Als Beispiel für eine verwendbare Werkstoffkombination, kann ein Magnet aus NdFeB (Neodym-Eisen-Bor) genannt werden, dessen Zerstörungstemperatur z.B. zwischen 80-120 °C liegt.
In diesem Fall würde man einen Kleber einsetzen, dessen Erweichungspunkt erst bei 150-200°C liegt.As an example of a usable material combination, a magnet of NdFeB (neodymium-iron-boron) may be mentioned whose destruction temperature is for example between 80-120 ° C.
In this case, one would use an adhesive whose softening point is only at 150-200 ° C.
Damit würde bei einem Versuch, den Magneten bei erhöhter Temperatur aus dem Schlüsselschaft herauszulösen, zuerst der Magnet unbrauchbar werdenThus, in an attempt to release the magnet at elevated temperature from the key shaft, the magnet would first become unusable
Nach einer Ausgestaltung der Erfindung können auch die Randschichten eines oberflächenbeschichteten Magneten eine geringere Haltekraft am Kernmaterial des Magneten aufweisen als die des Klebers an der Randschicht oder Ausnehmung.. Dies führt dazu, dass beim Versuch den Magneten aus der Ausnehmung herauszudrücken, die Randschicht sich vom Rest des Magneten abtrennt und damit der Magnet insgesamt zerstört wird.According to one embodiment of the invention, the edge layers of a surface-coated magnet may have a lower holding force on the core material of the magnet than that of the adhesive on the edge layer or recess .. This leads to the fact that when trying to push the magnet out of the recess, the edge layer from the rest separates the magnet and thus the magnet is destroyed altogether.
Beispiele für erfindungsgemäße Ausführungen sind in den Zeichnungen dargestellt. Dabei zeigen die
Bei der Ausführung nach
Abweichend davon, ist bei der in
Deviating from that, in the case of
Bei der in den
Claims (8)
dadurch gekennzeichnet,
dass der Permanent- Magnet in einer Ausnehmung im Schlüsselschaft mittels eines Klebers befestigt ist und aus einem Material besteht, dass mechanisch oder temperaturbedingt vor der mechanisch oder temperaturbedingten Aufhebung der Haltekraft des Klebers einer Zerstörung unterliegt.Magnetic arrangement for use in a lock - key system, wherein a permanent magnet in the key cooperates with an associated second magnet or ferromagnet in the cylinder core, which in turn acts on an actuator or locking member or a permanent magnet in the key on magnetizable actuator or locking member acts to release or lock a lock,
characterized,
in that the permanent magnet is fastened in a recess in the key shank by means of an adhesive and consists of a material which is subject to mechanical or temperature-induced damage prior to the mechanical or temperature-induced cancellation of the holding force of the adhesive.
dadurch gekennzeichnet,
dass der Kleber eine Erweichungstemperatur aufweist, die deutlich über der Zerstörungstemperatur des Magnetmaterials liegt.Magnet arrangement according to claim 1,
characterized,
that the adhesive has a softening temperature which is significantly above the destruction temperature of the magnetic material.
dadurch gekennzeichnet,
dass der Magnet aus einem Sintermaterial besteht.Magnet arrangement according to claim 1,
characterized,
that the magnet consists of a sintered material.
dadurch gekennzeichnet,
dass der Magnet aus NdFeB besteht.Magnet arrangement according to claim 3,
characterized,
that the magnet consists of NdFeB.
dadurch gekennzeichnet,
dass der Magnet aus SmCo besteht.Magnet arrangement according to claim 3,
characterized,
that the magnet consists of SmCo.
dadurch gekennzeichnet,
dass der Magnet zusätzlich mit einer Hinterschneidung in der Ausnehmung des Schlüsselschaftes angeordnet ist.Magnet arrangement according to one of the preceding claims,
characterized,
that the magnet is additionally arranged with an undercut in the recess of the key shank.
dadurch gekennzeichnet,
dass der Permanent - Magnet an seinen Seitenflächen und/oder seiner Bodenfläche in der Ausnehmung des Schlüsselschaftes verklebt ist.Magnet arrangement according to one of the preceding claims,
characterized,
that the permanent magnet is glued to its side surfaces and / or its bottom surface in the recess of the key shank.
dadurch gekennzeichnet,
dass die Randschichten eines oberflächenbeschichteten Magneten eine geringere Haltekraft am Kernmaterial des Magneten aufweisen als die des Klebers an der Randschicht oder Ausnehmung.Magnet arrangement according to one of the preceding claims,
characterized,
that the surface layers of a surface-coated magnet a reduced holding force to the core material of the magnet comprise than that of the adhesive to the surface layer or recess.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015000534 | 2015-01-15 | ||
DE102015007117.3A DE102015007117A1 (en) | 2015-01-15 | 2015-06-01 | Magnet arrangement for use in a lock and key system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3045619A1 true EP3045619A1 (en) | 2016-07-20 |
Family
ID=55077469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16150842.9A Withdrawn EP3045619A1 (en) | 2015-01-15 | 2016-01-12 | Magnet assembly for use in a lock and key system |
Country Status (1)
Country | Link |
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EP (1) | EP3045619A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT526389A1 (en) * | 2022-07-20 | 2024-02-15 | Evva Sicherheitstechnologie | Key for a cylinder lock and cylinder lock |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2032943A1 (en) * | 1970-07-03 | 1972-01-13 | Lücke, Herbert, Dipl. Ing., 8520 Erlangen | Door lock with magnetic security |
AT365712B (en) * | 1980-09-25 | 1982-02-10 | Evva Werke | MAGNETIC KEY |
DE3343581A1 (en) | 1983-07-06 | 1985-01-17 | Elzett Müvek, Budapest | MAGNETIC KEY ACTUATED KEY CYLINDER |
WO2010128367A2 (en) * | 2009-05-07 | 2010-11-11 | Schweiger, Martin Rainer Gabriel | Magnetic lock, magnetic key and combination thereof |
EP2388413A2 (en) * | 2010-05-20 | 2011-11-23 | BKS GmbH | Profile cylinder key |
EP2803464A2 (en) * | 2013-05-14 | 2014-11-19 | EVVA Sicherheitstechnologie GmbH | Method for manufacturing a key and device for performing the method |
-
2016
- 2016-01-12 EP EP16150842.9A patent/EP3045619A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2032943A1 (en) * | 1970-07-03 | 1972-01-13 | Lücke, Herbert, Dipl. Ing., 8520 Erlangen | Door lock with magnetic security |
AT365712B (en) * | 1980-09-25 | 1982-02-10 | Evva Werke | MAGNETIC KEY |
DE3343581A1 (en) | 1983-07-06 | 1985-01-17 | Elzett Müvek, Budapest | MAGNETIC KEY ACTUATED KEY CYLINDER |
WO2010128367A2 (en) * | 2009-05-07 | 2010-11-11 | Schweiger, Martin Rainer Gabriel | Magnetic lock, magnetic key and combination thereof |
EP2388413A2 (en) * | 2010-05-20 | 2011-11-23 | BKS GmbH | Profile cylinder key |
EP2803464A2 (en) * | 2013-05-14 | 2014-11-19 | EVVA Sicherheitstechnologie GmbH | Method for manufacturing a key and device for performing the method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT526389A1 (en) * | 2022-07-20 | 2024-02-15 | Evva Sicherheitstechnologie | Key for a cylinder lock and cylinder lock |
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