EP1760229B1 - Lock cylinder, especially a profile cylinder, for a locking device such as a door lock - Google Patents

Lock cylinder, especially a profile cylinder, for a locking device such as a door lock Download PDF

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Publication number
EP1760229B1
EP1760229B1 EP06016299A EP06016299A EP1760229B1 EP 1760229 B1 EP1760229 B1 EP 1760229B1 EP 06016299 A EP06016299 A EP 06016299A EP 06016299 A EP06016299 A EP 06016299A EP 1760229 B1 EP1760229 B1 EP 1760229B1
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EP
European Patent Office
Prior art keywords
pin
core
sleeve
pin portion
housing
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Not-in-force
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EP06016299A
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German (de)
French (fr)
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EP1760229A2 (en
EP1760229A3 (en
Inventor
Klaus Noch
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iploit AG
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iploit AG
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Publication of EP1760229A2 publication Critical patent/EP1760229A2/en
Publication of EP1760229A3 publication Critical patent/EP1760229A3/en
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Publication of EP1760229B1 publication Critical patent/EP1760229B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0003—Details
    • E05B27/0017—Tumblers or pins
    • E05B27/0021—Tumblers or pins having movable parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
    • E05B27/0071—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance by means preventing opening by using the bump-technique

Definitions

  • the invention relates to a lock cylinder, which is in particular a profile cylinder.
  • a lock cylinder is for example for a closing device such. a door lock provided.
  • Lock cylinder have a housing in which a cylindrical receiving space is formed for receiving a cylinder core.
  • the cylinder core is rotatably mounted in the receiving space of the housing. Axially through the cylinder core extends through a closing channel for the key. Starting from this closing channel also extend substantially radially through the cylinder core a plurality of first receiving bores in which core pins are arranged. In the housing are also receiving bores in which housing pins are arranged. In a certain rotational position of the cylinder core whose mounting holes are aligned with those of the housing.
  • the housing pins which are spring-loaded in the direction of the cylinder core in the receiving bores of the housing, extending into the receiving holes of the core or core pins into the receiving bores of the housing, so that the cylinder core is secured against rotation. Only when the contact surfaces of all pairs of housing and core pins with the outer surface of the core are aligned after the introduction of the appropriate key, the cylinder core can be rotated.
  • Lock cylinder of the aforementioned type are made DE-C-199 34 883 .
  • US-A-2002/0189309 US-A-5,966,971 and CH-A-669 632 known.
  • the known lock cylinder are generally considered quite burglar proof, but unfortunately are not always protected from all types of manipulation. Thus, it is possible, for example, with the help of manipulation tools to move all pairs of housing and core pins such that the contact surfaces are aligned with the outer surface of the cylinder.
  • Lock cylinder are already known, which have a multi-part core pin, which ensures in case of manipulation for the locking of the core. Examples of this can be found in CH-A-669 632 and US-A-5,966,971 , However, these known lock cylinder with multi-part core pin are constructed quite expensive, as far as the core pins, which is why the known lock cylinder are quite expensive.
  • the invention is based on the object to provide a lock cylinder with multi-part core pin, the core pin is still easy to assemble with a simple structure.
  • Essential feature of the invention is that at least one of the core pins of the lock cylinder extends in the event of a manipulation in its length and thus in the rest position, i. when not inserted key extends into the core receiving bore opposite housing receiving bore.
  • the at least one multi-part core pin which has its length adapted to the key during assembly of the lock cylinder, is triggered according to the invention by the manipulation on the closing channel facing or located in the closing channel end, which is generally formed substantially spherical, a pressing force is applied. This can be done by an electric pick tool, a prepared impact wrench or manually by another tool.
  • the at least one core pin of the lock cylinder according to the invention has a sleeve as the first pin part and a second pin part, which is arranged in the sleeve. Between the two pin parts acts a compression spring which is supported on the one hand in the sleeve and on the other hand on the second pin part. The inner second pin part is secured in or on the sleeve, against the force of the compression spring. In this state, the multi-part core pin can be handled as a unit like a normal one-piece core pin.
  • the inner second pin part To change the length of the inner second pin part must be removed from the sleeve.
  • the inner second pin part on a (pin) extension which extends through an opening in the bottom of the sleeve closed on one side.
  • This extension extends through an opening in the bottom of the sleeve and terminates with the outside of the sleeve bottom, so aligned with this.
  • the multi-part core pin is arranged in its core receiving bore such that the sleeve bottom faces the closing channel. If a force is now exerted on the end of the core pin located in the closing channel or facing it, the projection of the second pin part is thereby released from the holder within the sleeve, thereby releasing the second pin part as a result of the compression spring is moved out of the sleeve. This leads to a change in length of the core pin, which locks the lock permanently. It should also be noted that the spring in the sleeve is stronger than the spring with which the multi-part core pin assigned and presses against the core pin in the closed position of the lock cylinder to this fitting housing pin.
  • the outside of the sleeve bottom is curved or rounded, that is formed substantially spherical.
  • substantially spherical in the sense of this invention also means a slightly parabolic shape.
  • the rounding of the outer surface of the sleeve bottom has, as is known, advantageous in the introduction of the key, on the inclined surfaces in this way the linear movement of the key is converted into a transverse movement of the core pins.
  • the second pin part of the core pin is secured by clamping in or on the sleeve of the first pin part.
  • the second pin part can advantageously be designed as a shaft with widened head end, on which the clamping takes place by, for example, deformation of the sleeve wall.
  • the non-positive connection which may only be so large that it is overcome in the event of a force on the extension of the first pin part, as expected in the case of manipulation, can also by a pure friction or adhesion between the second pin part and the sleeve done.
  • the clamping can also take place exclusively or additionally by a frictional engagement between the extension of the second pin part and the opening in the sleeve bottom.
  • Conventional lock cylinders have a variety of core and housing pins. According to the invention it is sufficient if at least one of the core pins is formed in several parts, as provided by the invention.
  • Fig. 1 an embodiment of a profile cylinder 10 is shown.
  • the profile cylinder 10 has a housing 12 and a cylinder core 14, which is rotatably arranged in a receiving space 16 of the housing 12.
  • the cylinder core 14 is provided with an off-center axial locking channel 18, in which the key 20 can be inserted.
  • In the cylinder core 14 there are several core pins 22, 24 (in the exemplary embodiment, five core pins in a row) arranged one behind the other in the axial extent of the cylinder core 14, which are located in (first) receiving bores 26 of the cylinder core 14. These receiving bores 26 extend radially through the cylinder core 14 between its closing channel 18 and the outside 28th
  • the housing 12 In the housing 12 are also several (second) receiving holes 30, the number and arrangement of the number and arrangement of the first mounting holes 26 are the same.
  • the second receiving bores 30 extend radially with respect to the receiving space 16 of the housing 12 and are in accordance with the rotational position of the cylinder core 14 Fig. 1 arranged in alignment with the first receiving bores 26. While, as already mentioned above, in the first mounting holes 26, the core pins 22,24, which may be different lengths are arranged, 30 housing pins 32,34 are arranged in the second mounting holes, which are biased by helical compression springs 36 against the core pins 22,24 are.
  • the helical compression springs 36 press on the housing pins 32,34 the core pins 22,24 against the located in the closing channel 18 ends of the first mounting holes 26 (see Fig. 1 ).
  • the housing pins 32, 34 extend both within the first and second receiving bores 26, 30, so that rotation of the cylinder core 14 by the housing pins 32, 34 is prevented.
  • the core pins 22,24 are moved radially outwardly, by the key 20.
  • the vote of the width of the key 20 along the length thereof is so matched to the length of the core pins 22,24 that this with inserted key 20 with the outside 28 of the cylinder core 14 are aligned.
  • the housing pins 32,34 are completely moved back into the second mounting holes 30, so that the cylinder core 14 can now rotate.
  • first core pin 22 has a multi-part construction, namely a first pin member 38 having a sleeve 40 which at its in the closing channel 18th protruding end has a bottom 42 and at its opposite axial end 44 is open.
  • the core pin 22 is further provided with an inner second pin member 46 having a shank 48 with a widened head end 50.
  • a helical compression spring 51 which is stronger than the spring 36 in the housing receiving bore 30.
  • a backup / support of the second pin member 46 within the sleeve 40 of the first pin member 38th Dies takes place by a clamping, which is formed as a result of a material deformation of the sleeve wall at the open end 44 of the sleeve 40.
  • this clamping force must be removed, so that due to the helical compression spring 51, the two pin members 38 and 46 are moved apart to increase the axial length of the core pin 22. Since the helical compression spring 51 of the core pin 22 is stronger than the helical compression spring 36, with the associated housing pin 32 abuts the multi-part core pin 22, this change in length succeeds even if the multi-part core pin 22 associated housing pin 32 presses against the core pin 22.
  • FIGS. 2 and 3 show the situations in which the multipart core pin 22 exists as a unit, according to Fig. 2 no key is in the closing channel 18, while this in the illustration Fig. 3 the case is.
  • the multi-part, still present as a unit core pin 22 behaves exactly as well as the known one-piece core pins.
  • the inner second pin part 46 at its widened head end 50 opposite end a tapered pin-shaped extension 52 which is disposed from an opening 54 in the sleeve bottom 42 and closes with the outer surface 56 of the sleeve bottom 42 and . flees.
  • the end face of the extension 52 is thus in the outer surface 56 of the sleeve bottom 42.

Abstract

The cylinder lock, e.g. for a door, has a core pin (22) in two parts (38,46) with a spring (51) between them. The first part (38) has a sleeve (40) with a base (42) to take the second part. The base is towards the key channel (18) and the other end (44) is open. The second part (46) has a projection (52) through an opening in the base of the first part.

Description

Die Erfindung betrifft einen Schließzylinder, bei dem es sich insbesondere um einen Profilzylinder handelt. Ein derartiger Schließzylinder ist beispielsweise für eine Schließvorrichtung wie z.B. ein Türschloss vorgesehen.The invention relates to a lock cylinder, which is in particular a profile cylinder. Such a lock cylinder is for example for a closing device such. a door lock provided.

Schließzylinder weisen ein Gehäuse auf, in dem ein zylindrischer Aufnahmeraum zur Aufnahme eines Zylinderkerns ausgebildet ist. Der Zylinderkern ist dabei drehbar in dem Aufnahmeraum des Gehäuses gelagert. Axial durch den Zylinderkern hindurch erstreckt sich ein Schließkanal für den Schlüssel. Ausgehend von diesem Schließkanal erstrecken sich ferner im wesentlichen radial durch den Zylinderkern mehrere erste Aufnahmebohrungen, in denen Kernstifte angeordnet sind. Im Gehäuse befinden sich ebenfalls Aufnahmebohrungen, in denen Gehäusestifte angeordnet sind. In einer bestimmten Drehstellung des Zylinderkerns fluchten dessen Aufnahmebohrungen mit denen des Gehäuses. Sofern sich in dieser Drehstellung des Zylinderkerns kein Schlüssel bzw. ein nicht passender Schlüssel im Schließkanal befindet, erstrecken sich die Gehäusestifte, die in Richtung auf den Zylinderkern federbelastet in den Aufnahmebohrungen des Gehäuses angeordnet sind, bis in die Aufnahmebohrungen des Kerns bzw. Kernstifte bis in die Aufnahmebohrungen des Gehäuses hinein, so dass der Zylinderkern gegen eine Verdrehung gesichert ist. Erst wenn nach Einführung des passenden Schlüssels die Berührungsflächen sämtlicher Paare aus Gehäuse- und Kernstiften mit der Außenfläche des Kerns fluchten, lässt sich der Zylinderkern drehen.Lock cylinder have a housing in which a cylindrical receiving space is formed for receiving a cylinder core. The cylinder core is rotatably mounted in the receiving space of the housing. Axially through the cylinder core extends through a closing channel for the key. Starting from this closing channel also extend substantially radially through the cylinder core a plurality of first receiving bores in which core pins are arranged. In the housing are also receiving bores in which housing pins are arranged. In a certain rotational position of the cylinder core whose mounting holes are aligned with those of the housing. Provided that in this rotational position of the cylinder core no key or a non-matching key is in the closing channel, the housing pins which are spring-loaded in the direction of the cylinder core in the receiving bores of the housing, extending into the receiving holes of the core or core pins into the receiving bores of the housing, so that the cylinder core is secured against rotation. Only when the contact surfaces of all pairs of housing and core pins with the outer surface of the core are aligned after the introduction of the appropriate key, the cylinder core can be rotated.

Schließzylinder der vorstehend genannten Art sind aus DE-C-199 34 883 , US-A-2002/0189309 , US-A-5 966 971 und CH-A-669 632 bekannt.Lock cylinder of the aforementioned type are made DE-C-199 34 883 . US-A-2002/0189309 . US-A-5,966,971 and CH-A-669 632 known.

Die bekannten Schließzylinder gelten im allgemeinen als recht einbruchsicher, sind aber leider vor sämtlichen Arten von Manipulationen nicht immer geschützt. So ist es beispielsweise möglich, mit Hilfe von Manipulationswerkzeugen sämtliche Paare aus Gehäuse- und Kernstiften derart zu bewegen, dass die Berührungsflächen mit der Außenfläche des Zylinders fluchten.The known lock cylinder are generally considered quite burglar proof, but unfortunately are not always protected from all types of manipulation. Thus, it is possible, for example, with the help of manipulation tools to move all pairs of housing and core pins such that the contact surfaces are aligned with the outer surface of the cylinder.

In jüngster Zeit sind Einbrüche bzw. Einbruchsversuche bekannt geworden, bei denen die sogenannte Schlagtechnik zum Einsatz kam. Hierbei wird ein präparierter Schlüssel, dessen Schlüsselbartprofil gleich dem Profil des Schließkanals ist, mit einem Schlagwerkzeug ruckartig in den Kern getrieben. Durch den Bewegungsimpuls auf den Schlüssel erhalten auch sämtliche Gehäuse- und Kernstifte einen Bewegungsimpuls. Bei geschickter Handhabung der Schlagtechnik ist es möglich, dass die dem Schlüsselbart abgewandten Enden sämtlicher Kernstifte mit der Außenseite des Kerns fluchten, so dass dieser gedreht werden kann. Bei geübter Anwendung der Schlagtechnik hinterlässt diese keinerlei Manipulationsversuchsspuren an dem Schließzylinder, so dass die oben geschilderte Situation bezüglich der Beweislast gegeben ist.In recent times, burglary or burglary attempts have become known in which the so-called striking technique was used. Here, a prepared key whose key bit profile is equal to the profile of the closing channel, driven with a percussion tool jerkily into the core. The movement impulse on the key also gives all housing and core pins a movement impulse. With skillful handling of the striking technique, it is possible that the ends of the key bit facing away from all the core pins are aligned with the outside of the core, so that it can be rotated. With skilled use of the striking technique leaves this no signs of manipulation on the lock cylinder, so that the above-described situation regarding the burden of proof is given.

Deshalb ist bereits in DE-B-103 49 349 und DE-U-20 2004 008 507 ein Schließzylinder beschrieben, der über einen mehrteiligen Gehäusestift verfügt. Der mehrteilige Gehäusestift weist zwei über eine Feder gekoppelte Stiftteile auf, die sich im Falle einer Manipulation derart unkontrolliert bewegen, dass ein Fluchten des Kernstiftes, der an diesem zweiteiligen Gehäusestift anliegt, mit der Außenseite des Kerns nahezu unmöglich ist.That is why it is already in DE-B-103 49 349 and DE-U-20 2004 008 507 a lock cylinder described which has a multi-part housing pin. The multi-part housing pin has two pen parts coupled via a spring, which move in such a way uncontrolled in the event of manipulation that an alignment of the core pin, which bears against this two-part housing pin, with the outside of the core is almost impossible.

Es sind bereits auch schon Schließzylinder bekannt, die über einen mehrteiligen Kernstift verfügen, der im Falle einer Manipulation für die Verriegelung des Kerns sorgt. Beispiele hierfür finden sich in CH-A-669 632 und US-A-5 966 971 . Diese bekannten Schließzylinder mit mehrteiligem Kernstift sind jedoch recht aufwendig konstruiert, was die Kernstifte anbelangt, weshalb die bekannten Schließzylinder recht kostenintensiv sind.Lock cylinder are already known, which have a multi-part core pin, which ensures in case of manipulation for the locking of the core. Examples of this can be found in CH-A-669 632 and US-A-5,966,971 , However, these known lock cylinder with multi-part core pin are constructed quite expensive, as far as the core pins, which is why the known lock cylinder are quite expensive.

Der Erfindung liegt die Aufgabe zu Grunde, einen Schließzylinder mit mehrteiligem Kernstift zu schaffen, wobei der Kernstift bei einfachem Aufbau dennoch montagefreundlich ist.The invention is based on the object to provide a lock cylinder with multi-part core pin, the core pin is still easy to assemble with a simple structure.

Zur Lösung dieser Aufgabe wird mit der Erfindung ein Schließzylinder, insbesondere Profilzylinder, für eine Schließvorrichtung wie z.B. ein Türschloss, vorgeschlagen, der versehen ist mit

  • einem Gehäuse, das einen Aufnahmeraum und mindestens eine in den Aufnahmeraum mündende Aufnahmebohrung aufweist, in weicher ein mit einer ersten Feder in Richtung auf den Aufnahmeraum vorgespannter Gehäusestift angeordnet ist, und
  • einem Kern, der drehbar in dem Aufnahmeraum angeordnet ist und einen Schließkanal für einen Schlüssel und mindestens eine Aufnahmebohrung für einen Kernstift aufweist, welche sich zwischen dem Schließkanal und der Außenseite des Kerns erstreckt und in einer vorgegebenen Drehstellung des Kerns mit der mindestens einen Aufnahmebohrung des Gehäuses fluchtet.
To solve this problem, a lock cylinder, in particular profile cylinder, proposed for a locking device such as a door lock, which is provided with the invention
  • a housing, which has a receiving space and at least one receiving bore opening into the receiving space, into which a housing spring pretensioned with a first spring in the direction of the receiving space is arranged, and
  • a core which is rotatably arranged in the receiving space and has a closing channel for a key and at least one receiving bore for a core pin, which extends between the closing channel and the outer side of the core and in a predetermined rotational position of the core with the at least one receiving bore of the housing flees.

Dieser Schließzylinder ist erfindungsgemäß dadurch gekennzeichnet,

  • dass der Kernstift einen ersten Stiftteil und einen zweiten Stiftteil aufweist, zwischen denen eine zweite Feder wirkt,
  • dass der erste Stiftteil eine mit einem Boden versehene Hülse aufweist, die den zweiten Stiftteil aufnimmt und die mit ihrem Boden zum Schließkanal weist sowie an ihrem anderen Ende offen ist,
  • dass das dem Boden der Hülse des ersten Stiftteils abgewandte Ende des zweiten Stiftteils dem Schließkanal abgewandt ist und die den zweiten Stiftteil in zum Schließkanal entgegen gesetzter Richtung vorspannende zweite Feder von der Hülse aufgenommen ist,
  • dass der zweite Stiftteil gegen ein unbeabsichtigtes Herausbewegen aus der Hülse an/in dieser gesichert ist und an seinem dem Schließkanal zugewandten Ende einen Stiftfortsatz aufweist,
  • dass der Boden der Hülse eine Öffnung aufweist, durch die sich der Fortsatz des zweiten Stiftteils hindurch erstreckt und bei Sicherung des zweiten Stiftteils an/in der Hülse außen mit dem Boden abschließt, und
  • dass im Falle eines auf Grund einer Manipulation erfolgenden, auf den Fortsatz des zweiten Stiftteils des Kernstiftes einwirkenden Impulse die Sicherung des zweiten Stiftteils an/in der Hülse aufhebbar ist.
This lock cylinder is characterized according to the invention by
  • that the core pin has a first pin part and a second pin part, between which acts a second spring,
  • the first pin part has a bottomed sleeve which receives the second pin part and which has its bottom facing the closing channel and is open at its other end,
  • in that the end of the second pin part facing away from the bottom of the sleeve of the first pin part is remote from the closing channel and the second pin spring is biased by the second pin part in the opposite direction to the closing channel,
  • that the second pin part is secured against inadvertent movement out of the sleeve on / in this and has a pin extension at its end facing the closing channel,
  • that the bottom of the sleeve has an opening through which the extension of the second pin part extends and terminates on securing the second pin part on / in the sleeve on the outside with the bottom, and
  • in the case of a manipulation acting on the extension of the second pin part of the core pin, the securing of the second pin part on / in the sleeve can be canceled.

Wesensmerkmal der Erfindung ist es, dass mindestens einer der Kernstifte des Schließzylinders sich im Falle einer Manipulation in seiner Länge verlängert und damit auch in der Ruhestellung, d.h. bei nicht eingeführtem Schlüssel bis in die der Kern-Aufnahmebohrung gegenüberliegenden Gehäuse-Aufnahmebohrung erstreckt. Der mindestens eine mehrteilige Kernstift, der bei der Montage des Schließzylinders seine auf den Schlüssel angepasste Länge aufweist, wird erfindungsgemäß ausgelöst, indem bei der Manipulation auf das dem Schließkanal zugewandte bzw. sich im Schließkanal befindliche Ende, das im Regelfall im wesentlichen sphärisch ausgebildet ist, eine Andrückkraft ausgeübt wird. Diese kann durch ein Elektro-Pick-Werkzeug, einen präparierten Schlagschlüssel oder manuell durch ein anderes Werkzeug ausgeübt werden.Essential feature of the invention is that at least one of the core pins of the lock cylinder extends in the event of a manipulation in its length and thus in the rest position, i. when not inserted key extends into the core receiving bore opposite housing receiving bore. The at least one multi-part core pin, which has its length adapted to the key during assembly of the lock cylinder, is triggered according to the invention by the manipulation on the closing channel facing or located in the closing channel end, which is generally formed substantially spherical, a pressing force is applied. This can be done by an electric pick tool, a prepared impact wrench or manually by another tool.

Der mindestens eine Kernstift des erfindungsgemäßen Schließzylinders weist eine Hülse als ersten Stiftteil und einen zweiten Stiftteil auf, der in der Hülse angeordnet ist. Zwischen beiden Stiftteilen wirkt eine Druckfeder, die sich einerseits in der Hülse und andererseits an dem zweiten Stiftteil abstützt. Der innere zweite Stiftteil ist in bzw. an der Hülse gesichert, und zwar gegen die Kraft der Druckfeder. In diesem Zustand lässt sich der mehrteilige Kernstift als Einheit wie ein normaler einteiliger Kernstift handhaben.The at least one core pin of the lock cylinder according to the invention has a sleeve as the first pin part and a second pin part, which is arranged in the sleeve. Between the two pin parts acts a compression spring which is supported on the one hand in the sleeve and on the other hand on the second pin part. The inner second pin part is secured in or on the sleeve, against the force of the compression spring. In this state, the multi-part core pin can be handled as a unit like a normal one-piece core pin.

Zur Längenveränderung muss der innere zweite Stiftteil aus der Hülse herausgelöst werden. Hierfür weist der innere zweite Stiftteil einen (Stift-)Fortsatz auf, der sich durch eine Öffnung in dem Boden der einseitig geschlossenen Hülse erstreckt. Dieser Fortsatz erstreckt sich durch einen Öffnung in dem Hülsenboden und schließt mit der Außenseite des Hülsenbodens ab, fluchtet also mit dieser.To change the length of the inner second pin part must be removed from the sleeve. For this purpose, the inner second pin part on a (pin) extension which extends through an opening in the bottom of the sleeve closed on one side. This extension extends through an opening in the bottom of the sleeve and terminates with the outside of the sleeve bottom, so aligned with this.

Der mehrteilige Kernstift ist derart in seiner Kern-Aufnahmebohrung angeordnet, dass der Hülsenboden dem Schließkanal zugewandt ist. Wird nun auf das im Schließkanal befindliche bzw. diesem zugewandte Ende des Kernstiftes eine Kraft ausgeübt, so wird dadurch der Fortsatz des zweiten Stiftteils in die Hülse und dadurch der zweite Stiftteils aus seiner Halterung innerhalb der Hülse herausgelöst, so dass der zweite Stiftteil infolge der Druckfeder aus der Hülse heraus bewegt wird. Dadurch kommt es zu einer Längenveränderung des Kernstiftes, die das Schloss dauerhaft blockiert. Dabei ist noch anzumerken, dass die Feder in der Hülse stärker ist als die Feder, mit der der dem mehrteiligen Kernstift zugeordnete und bei Schließstellung des Schließzylinders an diesem anliegende Gehäusestift gegen den Kernstift drückt.The multi-part core pin is arranged in its core receiving bore such that the sleeve bottom faces the closing channel. If a force is now exerted on the end of the core pin located in the closing channel or facing it, the projection of the second pin part is thereby released from the holder within the sleeve, thereby releasing the second pin part as a result of the compression spring is moved out of the sleeve. This leads to a change in length of the core pin, which locks the lock permanently. It should also be noted that the spring in the sleeve is stronger than the spring with which the multi-part core pin assigned and presses against the core pin in the closed position of the lock cylinder to this fitting housing pin.

In vorteilhafter Weiterbildung der Erfindung ist die Außenseite des Hülsenbodens gewölbt oder gerundet, also im wesentlichen sphärisch ausgebildet. Unter "im wesentlichen sphärisch" wird im Sinne dieser Erfindung auch eine leicht parabolische Form verstanden. Die Rundung der Außenfläche des Hülsenbodens wirkt sich, wie an sich bekannt, vorteilhaft bei der Einführung des Schlüssels aus, über dessen Schrägflächen auf diese Weise die Linearbewegung des Schlüssels in eine dazu quer verlaufende Bewegung der Kernstifte umgesetzt wird.In an advantageous embodiment of the invention, the outside of the sleeve bottom is curved or rounded, that is formed substantially spherical. "Substantially spherical" in the sense of this invention also means a slightly parabolic shape. The rounding of the outer surface of the sleeve bottom has, as is known, advantageous in the introduction of the key, on the inclined surfaces in this way the linear movement of the key is converted into a transverse movement of the core pins.

In vorteilhafter Weiterbildung der Erfindung ist ferner vorgesehen, dass der zweite Stiftteil des Kernstiftes klemmend in bzw. an der Hülse des ersten Stiftteils gesichert ist. Der zweite Stiftteil kann vorteilhafterweise als Schaft mit verbreitertem Kopfende ausgebildet sein, an dem die Klemmung durch beispielsweise Verformung der Hülsenwandung erfolgt. Die kraftschlüssige Verbindung, die lediglich so groß sein darf, dass sie im Falle einer Krafteinwirkung auf den Fortsatz des ersten Stiftteils, wie sie im Falle einer Manipulation zu erwarten ist, überwunden wird, kann auch durch einen reinen Reib- oder Kraftschluss zwischen dem zweiten Stiftteil und der Hülse erfolgen. Die Klemmung kann auch ausschließlich oder zusätzlich durch einen Reibschluss zwischen dem Fortsatz des zweiten Stiftteils und der Öffnung in dem Hülsenboden erfolgen.In an advantageous embodiment of the invention is further provided that the second pin part of the core pin is secured by clamping in or on the sleeve of the first pin part. The second pin part can advantageously be designed as a shaft with widened head end, on which the clamping takes place by, for example, deformation of the sleeve wall. The non-positive connection, which may only be so large that it is overcome in the event of a force on the extension of the first pin part, as expected in the case of manipulation, can also by a pure friction or adhesion between the second pin part and the sleeve done. The clamping can also take place exclusively or additionally by a frictional engagement between the extension of the second pin part and the opening in the sleeve bottom.

Herkömmliche Schließzylinder weisen eine Vielzahl von Kern- und Gehäusestiften auf. Erfindungsgemäß ausreichend ist es, wenn mindestens einer der Kernstifte mehrteilig ausgebildet ist, wie es die Erfindung vorsieht.Conventional lock cylinders have a variety of core and housing pins. According to the invention it is sufficient if at least one of the core pins is formed in several parts, as provided by the invention.

Die Erfindung wird nachfolgend anhand der Figuren und unter Bezugnahme auf ein Ausführungsbeispiels näher erläutert. Im einzelnen zeigen:

Fig. 1
eine Darstellung eines Schließ- bzw. Profilzylinders im Längsschnitt im Verriegelungszustand ohne eingeführten Schlüssel,
Fig. 2
eine Darstellung des Bereichs II der Fig. 1 in vergrößertem Maßstab zur Verdeutlichung des mehrteiligen Kernstiftes,
Fig. 3
die Position des mehrteiligen Kernstiftes, wenn dieser bei eingeführtem Schlüssel noch als Einheit vorliegt, also noch nicht ausgelöst hat, und
Fig. 4
die Situation ähnlich der gemäß Fig. 2 jedoch bei auf Grund eines Manipulationsversuches ausgelöstem und in seiner Länge dadurch verlängertem Kernstift, der für eine dauerhafte Blockade des Kerns im Gehäuse sorgt.
The invention will be explained in more detail with reference to the figures and with reference to an embodiment. In detail show:
Fig. 1
a representation of a lock or profile cylinder in longitudinal section in the locked state without inserted key,
Fig. 2
a representation of area II of Fig. 1 on an enlarged scale to illustrate the multi-part core pin,
Fig. 3
the position of the multi-part core pin, if this is still present as a unit with imported key, so not yet triggered, and
Fig. 4
the situation similar to that according to Fig. 2 however, due to a manipulation attempt triggered and in its length thereby extended core pin, which ensures a permanent blockage of the core in the housing.

In Fig. 1 ist ein Ausführungsbeispiel eines Profilzylinders 10 gezeigt. Der Profilzylinder 10 weist ein Gehäuse 12 und einen Zylinderkern 14 auf, der in einem Aufnahmeraum 16 des Gehäuses 12 drehbar angeordnet ist. Der Zylinderkern 14 ist mit einem außermittigen axialen Schließkanal 18 versehen, in den der Schlüssel 20 einsteckbar ist. In dem Zylinderkern 14 befinden sich mehrere in axialer Erstreckung des Zylinderkerns 14 hintereinander angeordnete Kernstifte 22,24 (im Ausführungsbeispiel fünf Kernstifte in einer Reihe), die sich in (ersten) Aufnahmebohrungen 26 des Zylinderkerns 14 befinden. Diese Aufnahmebohrungen 26 erstrecken sich radial durch den Zylinderkern 14 zwischen dessen Schließkanal 18 und der Außenseite 28.In Fig. 1 an embodiment of a profile cylinder 10 is shown. The profile cylinder 10 has a housing 12 and a cylinder core 14, which is rotatably arranged in a receiving space 16 of the housing 12. The cylinder core 14 is provided with an off-center axial locking channel 18, in which the key 20 can be inserted. In the cylinder core 14 there are several core pins 22, 24 (in the exemplary embodiment, five core pins in a row) arranged one behind the other in the axial extent of the cylinder core 14, which are located in (first) receiving bores 26 of the cylinder core 14. These receiving bores 26 extend radially through the cylinder core 14 between its closing channel 18 and the outside 28th

Im Gehäuse 12 befinden sich ebenfalls mehrere (zweite) Aufnahmebohrungen 30, deren Anzahl und Anordnung der Anzahl und Anordnung der ersten Aufnahmebohrungen 26 gleichen. Die zweiten Aufnahmebohrungen 30 erstrecken sich bezogen auf den Aufnahmeraum 16 des Gehäuses 12 radial und sind in der Drehposition des Zylinderkerns 14 gemäß Fig. 1 in Flucht mit den ersten Aufnahmebohrungen 26 angeordnet. Während, wie oben bereits erwähnt, in den ersten Aufnahmebohrungen 26 die Kernstifte 22,24, die unterschiedlich lang sein können, angeordnet sind, sind in den zweiten Aufnahmebohrungen 30 Gehäusestifte 32,34 angeordnet, die mittels Schraubendruckfedern 36 gegen die Kernstifte 22,24 vorgespannt sind. Die Schraubendruckfedern 36 drücken über die Gehäusestifte 32,34 die Kernstifte 22,24 gegen die im Schließkanal 18 befindlichen Enden der ersten Aufnahmebohrungen 26 (siehe Fig. 1). In dieser Situation erstrecken sich die Gehäusestifte 32,34 sowohl innerhalb der ersten als auch der zweiten Aufnahmebohrungen 26,30, so dass eine Verdrehung des Zylinderkerns 14 durch die Gehäusestifte 32,34 verhindert wird. Bei eingeführtem Schlüssel 20 sind die Kernstifte 22,24 radial auswärts bewegt, und zwar durch den Schlüssel 20. Die Abstimmung der Breite des Schlüssels 20 längs dessen Länge ist derart auf die Länge der Kernstifte 22,24 abgestimmt, dass diese bei eingeführtem Schlüssel 20 mit der Außenseite 28 des Zylinderkerns 14 fluchten. In dieser Situation sind die Gehäusestifte 32,34 vollständig in die zweiten Aufnahmebohrungen 30 zurückbewegt, so dass sich der Zylinderkern 14 nunmehr drehen lässt.In the housing 12 are also several (second) receiving holes 30, the number and arrangement of the number and arrangement of the first mounting holes 26 are the same. The second receiving bores 30 extend radially with respect to the receiving space 16 of the housing 12 and are in accordance with the rotational position of the cylinder core 14 Fig. 1 arranged in alignment with the first receiving bores 26. While, as already mentioned above, in the first mounting holes 26, the core pins 22,24, which may be different lengths are arranged, 30 housing pins 32,34 are arranged in the second mounting holes, which are biased by helical compression springs 36 against the core pins 22,24 are. The helical compression springs 36 press on the housing pins 32,34 the core pins 22,24 against the located in the closing channel 18 ends of the first mounting holes 26 (see Fig. 1 ). In this situation, the housing pins 32, 34 extend both within the first and second receiving bores 26, 30, so that rotation of the cylinder core 14 by the housing pins 32, 34 is prevented. When inserted key 20, the core pins 22,24 are moved radially outwardly, by the key 20. The vote of the width of the key 20 along the length thereof is so matched to the length of the core pins 22,24 that this with inserted key 20 with the outside 28 of the cylinder core 14 are aligned. In this situation, the housing pins 32,34 are completely moved back into the second mounting holes 30, so that the cylinder core 14 can now rotate.

Die Besonderheit des Profil- bzw. Schließzylinders 10 dieses Ausführungsbeispiels wird nachfolgend anhand der Fign. 2 bis 4 erläutert. Wie anhand von Fig. 2 zu erkennen ist, weist der bei Betrachtung des Profil- bzw. Schließzylinders 10 von vorne, d.h. vom Schließkanaleingang, erste Kernstift 22 einen mehrteiligen Aufbau auf, und zwar einen ersten Stiftteil 38, der eine Hülse 40 aufweist, die an ihrem in den Schließkanal 18 hinein ragenden Ende einen Boden 42 aufweist und an ihrem gegenüberliegenden axialen Ende 44 offen ist. Der Kernstift 22 ist ferner mit einem inneren zweiten Stiftteil 46 versehen, der einen Schaft 48 mit verbreitertem Kopfende 50 auf. Zwischen dem Boden 42 der Hülse 40 und dem Kopfende 50 des zweiten Stiftteils 46 befindet sich eine Schraubendruckfeder 51, die stärker ist als die Feder 36 in der Gehäuse-Aufnahmebohrung 30. Damit diese mehrteilige Anordnung des Kernstiftes 22 als eine Baueinheit handhabbar ist, bedarf es einer Sicherung/Halterung des zweiten Stiftteils 46 innerhalb der Hülse 40 des ersten Stiftteils 38. Dies erfolgt durch eine Klemmung, die infolge einer Materialverformung der Hülsenwandung am offenen Ende 44 der Hülse 40 ausgebildet ist. Im Bedarfsfalle, nämlich bei einem Manipulationsversuch, muss diese Klemmkraft aufgehoben werden, so dass auf Grund der Schraubendruckfeder 51 die beiden Stiftteile 38 und 46 zur Vergrößerung der axialen Länge des Kernstiftes 22 auseinander bewegt werden. Da die Schraubendruckfeder 51 des Kernstiftes 22 stärker ist als die Schraubendruckfeder 36, mit der der zugehörige Gehäusestift 32 an dem mehrteiligen Kernstift 22 anliegt, gelingt diese Längenveränderung auch dann, wenn der dem mehrteiligen Kernstift 22 zugeordnete Gehäusestift 32 gegen den Kernstift 22 drückt.The peculiarity of the profile or lock cylinder 10 of this embodiment will be described below with reference to FIGS. 2 to 4 explained. As based on Fig. 2 can be seen, the viewing of the profile or lock cylinder 10 from the front, ie from Schließkanaleingang, first core pin 22 has a multi-part construction, namely a first pin member 38 having a sleeve 40 which at its in the closing channel 18th protruding end has a bottom 42 and at its opposite axial end 44 is open. The core pin 22 is further provided with an inner second pin member 46 having a shank 48 with a widened head end 50. Between the bottom 42 of the sleeve 40 and the head end 50 of the second pin member 46 is a A helical compression spring 51, which is stronger than the spring 36 in the housing receiving bore 30. In order for this multi-part arrangement of the core pin 22 is handled as a unit, it requires a backup / support of the second pin member 46 within the sleeve 40 of the first pin member 38th Dies takes place by a clamping, which is formed as a result of a material deformation of the sleeve wall at the open end 44 of the sleeve 40. In case of need, namely a manipulation attempt, this clamping force must be removed, so that due to the helical compression spring 51, the two pin members 38 and 46 are moved apart to increase the axial length of the core pin 22. Since the helical compression spring 51 of the core pin 22 is stronger than the helical compression spring 36, with the associated housing pin 32 abuts the multi-part core pin 22, this change in length succeeds even if the multi-part core pin 22 associated housing pin 32 presses against the core pin 22.

Die Fign. 2 und 3 zeigen die Situationen, in denen der mehrteilige Kernstift 22 als eine Einheit vorliegt, wobei gemäß Fig. 2 sich kein Schlüssel im Schließkanal 18 befindet, während dies in der Darstellung gemäß Fig. 3 der Fall ist. Der mehrteilige, noch als Einheit vorliegende Kernstift 22 verhält sich also genau so wie die bekannten einteiligen Kernstifte.The FIGS. 2 and 3 show the situations in which the multipart core pin 22 exists as a unit, according to Fig. 2 no key is in the closing channel 18, while this in the illustration Fig. 3 the case is. The multi-part, still present as a unit core pin 22 behaves exactly as well as the known one-piece core pins.

Zum Auslösen einer Längenveränderung des mehrteiligen Kernstifts 22 weist dessen innerer zweiter Stiftteil 46 an seinem dem verbreiterten Kopfende 50 gegenüberliegenden Ende einen verjüngten stiftförmigen Fortsatz 52 auf, der von einer Öffnung 54 in dem Hülsenboden 42 angeordnet ist und mit der Außenfläche 56 des Hülsenbodens 42 abschließt bzw. fluchtet. Die Stirnseite des Fortsatzes 52 liegt also in der Außenfläche 56 des Hülsenbodens 42. Bereits leichte Bewegungsimpulse, wie sie bei jeder Art von Manipulationsversuch auf die Kernstifte eines Schließzylinders einwirken, führen dazu, dass der Fort satz 52 in die Hülse 40 hinein bewegt und dabei die Klemmung zwischen dem inneren zweiten Stiftteil 46 und der Hülse 40 aufgehoben wird, so dass die Feder nunmehr die inneren zweiten Stiftteil 46 unter Bewirkung einer Längenvergrößerung des Kernstiftes 22 aus dessen Hülse 40 heraus bewegt. Damit ergibt sich die Situation gemäß Fig. 4, der zufolge der Kernstift 22 eine Länge aufweist, so dass der innere zweite Stiftteil zumindest mit seinem verbreiterten Kopfende 50 auch dann bis in die gegenüberliegende Aufnahmebohrung 30 des Gehäuses 12 hineinragt, wenn kein Schlüssel oder Manipulationswerkzeug in den Schließkanal 18 eingeführt ist. Damit ist der Kern 14 dauerhaft gesperrt, und zwar als Folge eines Manipulationsversuches.To initiate a change in length of the multi-part core pin 22, the inner second pin part 46 at its widened head end 50 opposite end a tapered pin-shaped extension 52 which is disposed from an opening 54 in the sleeve bottom 42 and closes with the outer surface 56 of the sleeve bottom 42 and . flees. The end face of the extension 52 is thus in the outer surface 56 of the sleeve bottom 42. Already slight movement impulses, as they act in any type of manipulation attempt on the core pins of a lock cylinder, cause the Fort set 52 moves into the sleeve 40 and thereby the Clamping between the inner second pin member 46 and the sleeve 40 is released, so that the spring now moves the inner second pin member 46, causing an increase in the length of the core pin 22 from the sleeve 40 out. In order to the situation arises according to Fig. 4 according to which the core pin 22 has a length such that the inner second pin part protrudes at least with its widened head end 50 into the opposite receiving bore 30 of the housing 12 even if no key or manipulation tool is inserted into the closing channel 18. Thus, the core 14 is permanently locked, as a result of a manipulation attempt.

Claims (6)

  1. Closing cylinder, in particular a profile cylinder, for a closing device, such as a door lock, comprising
    - a housing (12) having a recess (16) and at least one recess bore (30), which opens into the recess (16) and in which is arranged a housing pin (32), pre-tensioned in the direction of the recess (16) by a first spring (36), and
    - a core (14) which is arranged rotatably in the recess (16) and has a locking channel (18) for a key and at least one recess bore (26) for a core pin (24), the recess bore extending between the locking channel (18) and the outer surface of the core (14) and being aligned, in a specified rotational position of the core (14), with the at least one recess bore (30) of the housing (12),
    characterised in that
    - the core pin (22) has a first pin portion (38) and a second pin portion (46) between which a second spring (51) operates,
    - the first pin portion (38) has a sleeve (40) which is provided with a base (42), receives the second pin portion (46) and faces the locking channel (18) with its base (42), being open at the other end (44),
    - the end of the second pin portion (46) which faces away from the base (42) of the sleeve (40) of the first pin portion (38) also faces away from the locking channel (18), and the second spring (51), which pre-tensions the second pin portion (46) in the direction towards the locking channel (18), is received in the sleeve (40),
    - the second pin portion (46) is secured on/in the sleeve (40) against an unintended movement out of said sleeve, and has a pin extension (52) on the end facing the locking channel (18),
    - the base (42) of the sleeve (40) has an opening (54), through which the extension of the second pin portion (46) extends, ending on the outside of the base (42) if the second pin portion (46) is secured on/in the sleeve (40), and
    - in the case of an impulse exerted on the extension (52) of the second pin portion (46) of the core pin (22) due to a manipulation, the securing of the second pin portion (46) on/in the sleeve (40) can be broken off.
  2. Closing cylinder according to claim 1, characterised in that the base (42) of the sleeve (40) has, on the outside, a surface with a peak, and in that the opening (54) is arranged in the base concentric with said peak.
  3. Closing cylinder according to claim 2, characterised in that the pin extension (52) has an outer surface which lies within the contour of the rounded outer surface of the base (42) of the sleeve (40) of the core pin (22).
  4. Closing cylinder according to any one of claims 1 to 4, characterised in that the second pin portion (46) of the core pin (22) is secured by clamping on/in the sleeve (40) of the first pin portion (38).
  5. Closing cylinder according to any one of claims 1 to 4, characterised in that the second pin portion (46) has a widened head end (50) and a shank (48) which is attached thereto.
  6. Closing cylinder according to any one of claims 1 to 5, characterised in that the housing (12) and the core (14) each have a plurality of recess bores (26, 30) provided with housing pins or core pins (32, 24), and in that at least one of the core pins (22) has a first pin portion (38) and a spring-loaded second pin portion (46).
EP06016299A 2005-08-06 2006-08-04 Lock cylinder, especially a profile cylinder, for a locking device such as a door lock Not-in-force EP1760229B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005037196A DE102005037196B4 (en) 2005-08-06 2005-08-06 Locking cylinder, in particular profile cylinder, for a closing device such. a door lock

Publications (3)

Publication Number Publication Date
EP1760229A2 EP1760229A2 (en) 2007-03-07
EP1760229A3 EP1760229A3 (en) 2007-03-14
EP1760229B1 true EP1760229B1 (en) 2008-07-09

Family

ID=37670068

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Application Number Title Priority Date Filing Date
EP06016299A Not-in-force EP1760229B1 (en) 2005-08-06 2006-08-04 Lock cylinder, especially a profile cylinder, for a locking device such as a door lock

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EP (1) EP1760229B1 (en)
AT (1) ATE400717T1 (en)
DE (1) DE102005037196B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321485B (en) * 2013-06-21 2016-03-02 董文迪 Multi-disc coupling lock cylinder
CN105089358B (en) * 2014-05-05 2018-08-17 刘航鹰 A kind of anti-theft lock and associated key

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669632A5 (en) * 1986-03-13 1989-03-31 Ernst Keller
IL90211A (en) * 1989-05-05 1991-11-21 Mul T Lock Ltd Cylinder lock
CH686969A5 (en) * 1993-03-30 1996-08-15 Ernst Keller Keys and cylinder for a security lock.
US5966971A (en) * 1995-09-15 1999-10-19 Keller; Ernst Lock bolt
DE19934883C1 (en) * 1999-07-24 2001-01-18 Wagner Alexander Josef Key-operated door lock has lock cylinder rotated by inserted key and blocked against manipulation by clamp element contained in bore in lock cylinder housing
AU2153201A (en) * 1999-12-27 2001-07-09 Henrik Dirk Stemmerik Burglar-proof cylinder lock
US7086259B2 (en) * 2002-06-20 2006-08-08 Mul-T-Lock Technologies, Ltd. Pick resistant lock
DE10349348B3 (en) * 2003-10-23 2005-03-24 Klaus Noch Closing cylinder for door lock has second spring between first and second pin parts stressed towards core

Also Published As

Publication number Publication date
DE102005037196B4 (en) 2007-10-11
EP1760229A2 (en) 2007-03-07
EP1760229A3 (en) 2007-03-14
ATE400717T1 (en) 2008-07-15
DE102005037196A1 (en) 2007-02-08

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