EP2186975B1 - Key for a lock cylinder - Google Patents

Key for a lock cylinder Download PDF

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Publication number
EP2186975B1
EP2186975B1 EP09173223.0A EP09173223A EP2186975B1 EP 2186975 B1 EP2186975 B1 EP 2186975B1 EP 09173223 A EP09173223 A EP 09173223A EP 2186975 B1 EP2186975 B1 EP 2186975B1
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EP
European Patent Office
Prior art keywords
key
transverse rib
ribs
rib
shaft
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
EP09173223.0A
Other languages
German (de)
French (fr)
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EP2186975A3 (en
EP2186975A2 (en
Inventor
Marc Rasecke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aug Winkhaus GmbH and Co KG
Original Assignee
Aug Winkhaus GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Aug Winkhaus GmbH and Co KG filed Critical Aug Winkhaus GmbH and Co KG
Priority to SI200931244T priority Critical patent/SI2186975T1/en
Priority to PL09173223T priority patent/PL2186975T3/en
Publication of EP2186975A2 publication Critical patent/EP2186975A2/en
Publication of EP2186975A3 publication Critical patent/EP2186975A3/en
Application granted granted Critical
Publication of EP2186975B1 publication Critical patent/EP2186975B1/en
Priority to HRP20151010TT priority patent/HRP20151010T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0029—Key profiles characterized by varying cross-sections of different keys within a lock system
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key

Definitions

  • the invention relates to a key for a lock cylinder with a shaft, with a key-chest and a key back, which together form two narrow sides of the shaft, arranged on the key chest with locking notches for driving pin tumblers in the lock cylinder and with the key back with the key chest connecting side surfaces, said the shaft has a central transverse rib, at the middle transverse rib in each case one in the direction of the key-breast and in the direction of the key-back facing longitudinal rib is connected and the longitudinal ribs are offset in the adjacent to the middle transverse rib portions without intersection and the longitudinal ribs and the middle transverse rib at right angles meet each other.
  • Such a key is for example from the EP 1 247 926 A2 known.
  • the longitudinal ribs merge with a broadening formed by a radius in the transverse rib. This leads to a high stability of the key.
  • these spacers allow for easy alignment of a manipulation tool inserted into a lock channel for receiving the key.
  • the EP 0 144 734 A1 discloses a key having straight longitudinal ribs and transverse ribs. An adapted for such a key locking channel makes this difficult Align a manipulation tool. However, the key has little stability.
  • a key is for example from the EP 0 166 945 A1 known and has a portion with a G-shaped cross-section in the shaft.
  • the portion having the G-shaped cross section divides a lower profile area facing the key-chest and an upper profile area facing the key-back. This form impedes the insertion of a manipulation tool in the closing channel with a correspondingly adapted closing channel in the lock cylinder.
  • a disadvantage of the known key is that it is very difficult to manufacture and has only a low stability. However, the low stability of the key requires a thick-walled shaft, which in turn leads to a wide closing channel. Finally, due to the large dimensions, it is particularly easy to insert a manipulation tool into the closing channel.
  • keys are known from practice, in which the shaft is designed wavy in cross section.
  • the shaft receiving the lock channel of the key must then also have a waveform.
  • This design allows a particularly simple manipulation, since here the manipulation tool only has to be made flexible in order to fill the closing channel. Such keys can therefore be replaced particularly easily by a manipulation tool.
  • the invention is based on the problem of designing the key of the type mentioned above so that it has a particularly high stability and that replacement of the key by a manipulation tool for unlocking the lock cylinder is made more difficult.
  • the closing channel receiving the shaft is interrupted into sections for receiving the middle transverse rib and sections for receiving the longitudinal ribs.
  • the shaft has a high stability by the shape and can therefore be provided with a very small wall thickness.
  • the small wall thickness limits the stability of a possible manipulation tool, since the closing channel for receiving the key has the width of the longitudinal ribs and the transverse ribs.
  • the shank has an upper profiled area close to the spine for producing a large profile variation, which can be scanned in the closing cylinder by a corresponding profile of the closing channel or by further tumblers.
  • the key-breast near profile area has the closing notches and has only small dimensions.
  • the introduction of a manipulation tool, such as a picking needle in the key of the invention adapted closing channel is much more difficult. Furthermore, by the sections a swinging of the manipulation tool, as it is required to initiate a pulse in the pin tumblers of the lock cylinder, obstructed. Due to the design according to the invention, the key according to the invention has at each transition of the longitudinal ribs to the middle transverse rib a kink, which prevents a correspondingly adapted closing channel vertical access to the pin tumblers of the lock cylinder. Thus, no force in the pin tumblers of the lock cylinder over the middle transverse rib receiving portion of the closing channel be initiated.
  • a manipulation tool inserted into the section of the closing channel provided for the longitudinal rib of the key according to the invention is reliably pressed away to the side because the longitudinal ribs each have two oppositely directed circular arcs and when the individual circular arcs transition tangentially into one another. As a result, the longitudinal ribs each form a positive guide for the manipulation tool. Pulses generated by the manipulation tool can thus not be introduced vertically into the pin tumblers of the lock cylinder.
  • picking needle is guided from radially inward to radially outward, when the longitudinal ribs are guided to the central transverse rib towards the outside.
  • the middle transverse rib in which the deepest keyway is guided, has a the pin tumbler of the lock cylinder laterally projecting extension.
  • a manipulation tool is reliably directed into the pocket and thus kept away from the pin tumblers. If the extension is also scanned by means of a tumbler in the lock cylinder, two manipulation tools must be introduced simultaneously in the middle transverse rib receiving portion of the closing channel, which further increases the tamper resistance of the lock cylinder.
  • the key according to the invention has a high stability and is therefore able to transmit a high torque when the shaft has a plurality of transverse ribs and when the transverse ribs are interconnected via longitudinal ribs.
  • the shaft has a uniform wall thickness over an entire profile region formed by the transverse ribs and the longitudinal ribs.
  • the key according to the invention is substantially thinner than known key.
  • the key according to the invention has by the arrangement of one or more transverse ribs and longitudinal ribs and by the shape of the circular arcs having longitudinal ribs on a high stability and therefore can transmit a sufficient torque to a core of the lock cylinder.
  • FIG. 1 shows a partial section through a lock cylinder 1 with a rotatable in a housing 2 core 3 and with a key 4.
  • the core 3 has a closing channel 5 for insertion of a shaft 6 of the key 4.
  • the key 4 also has a Reide 7 for gripping.
  • the movement of the core 3 relative to the housing 2 can be blocked or released by means of a plurality of generally known pin tumblers 8.
  • the shank 6 of the key 4 has a series of locking notches 9 for controlling the pin tumblers 8.
  • the locking notches 9 are arranged in a key-chest 10, while the side of the shank 6 of the key 4 facing away from the key-breast 10 forms a key back 11.
  • FIG. 2 shows enlarged a sectional view through the core 3 of the lock cylinder 1 from FIG. 1 with the key 4 in the area of the highest pin tumbler 8.
  • the key 4 has the highest possible notch 9 for the highest pin tumbler 8.
  • the lowest possible notch 9 is led to a central transverse rib 12 of the key 4.
  • At this middle transverse rib 12 each close in the direction of the key back 11 and the key-chest 10 facing longitudinal ribs 13, 14 at.
  • the longitudinal ribs 13, 14 each have two circular arcs 15, 16, which merge tangentially into one another.
  • the longitudinal ribs 13, 14 and the transverse rib 12 abut one another at right angles.
  • the key back 11 is formed by a further transverse rib 17.
  • the key 4 also has in each case a further transverse rib 18, 19 between the key back 11 and the middle transverse rib 12 and between the middle transverse rib 12 and the key-chest 10.
  • the transverse ribs 18, 19 arranged outside the closing notch 9 are connected to one another via a further longitudinal rib 20 ,
  • Another longitudinal rib 21 is guided to the key-chest 10.
  • the further longitudinal ribs 20, 21 are constructed like the longitudinal ribs 13, 14 adjoining the central transverse rib 12.
  • the abutting from the key back 11 on the central transverse rib 12 longitudinal rib 14 is outwardly, away from the median plane of the shaft 6.
  • the central transverse rib 12 projects laterally beyond the pin tumbler 8 with an extension 22.
  • the core 3 thus has a pocket 23 for receiving the extension 22. If a manipulation tool is inserted into the lock channel 5 instead of the key 4, this is replaced by the shape of the lock middle transverse rib 12 abutting longitudinal rib 14 outwardly pressed into the pocket 23 of the core 3.
  • the pin tumbler 8 is not accessible to the manipulation tool.
  • FIG. 3 shows a cross section through a further embodiment of the key 4 with various hatched areas 24 for varying the profile of the shaft 6 of the key 4 to create a closing hierarchy.
  • This key 4 is different from that FIG. 2 in that the section of the key 4 provided for driving the pin tumbler 8 has a single longitudinal rib 25.
  • the highest possible pin tumbler 8 is in FIG. 3 shown in phantom.
  • FIGS. 4 and 5 show further embodiments of the key 4 in cross section, which differ in the shape of longitudinal ribs 26, 27. Furthermore, possible surfaces 28, 29 are shown hatched to vary the profile of the key 4.
  • FIG. 6 shows a key 4 with the core 3 of the lock cylinder 1 in cross section.
  • This key 4 differs from the previously described keys in that two longitudinal ribs 30, 31 are guided straight to a central transverse rib 32 and offset from one another. With 0 to 8 different stages of Stiftzuen 8 and thus the closing notches 9 are marked. Furthermore, areas 33 are shown hatched for a possible profile variation.

Landscapes

  • Lock And Its Accessories (AREA)
  • Supports Or Holders For Household Use (AREA)

Description

Die Erfindung betrifft einen Schlüssel für einen Schließzylinder mit einem Schaft, mit einer Schlüsselbrust und einem Schlüsselrücken, welche zusammen zwei Schmalseiten des Schaftes bilden, mit auf der Schlüsselbrust angeordneten Schließkerben zum Ansteuern von Stiftzuhaltungen im Schließzylinder und mit den Schlüsselrücken mit der Schlüsselbrust verbindenden Seitenflächen, wobei der Schaft eine mittlere Querrippe hat, an der mittleren Querrippe jeweils eine in Richtung Schlüsselbrust und in Richtung Schlüsselrücken weisende Längsrippe angebunden ist und die Längsrippen in den an die mittlere Querrippe angrenzenden Abschnitte überschneidungsfrei zueinander versetzt sind und wobei die Längsrippen und die mittlere Querrippe im rechten Winkel aneinander treffen.The invention relates to a key for a lock cylinder with a shaft, with a key-chest and a key back, which together form two narrow sides of the shaft, arranged on the key chest with locking notches for driving pin tumblers in the lock cylinder and with the key back with the key chest connecting side surfaces, said the shaft has a central transverse rib, at the middle transverse rib in each case one in the direction of the key-breast and in the direction of the key-back facing longitudinal rib is connected and the longitudinal ribs are offset in the adjacent to the middle transverse rib portions without intersection and the longitudinal ribs and the middle transverse rib at right angles meet each other.

Ein solcher Schlüssel ist beispielsweise aus der EP 1 247 926 A2 bekannt. Bei diesem Schlüssel gehen die Längsrippen mit einer von einem Radius gebildeten Verbreiterung in die Querrippe über. Dies führt zu einer hohen Stabilität des Schlüssels. Jedoch ermöglichen diese Verbreiterungen ein einfaches Ausrichten eines in einen Schließkanal zur Aufnahme des Schlüssels eingeführte Manipulationswerkzeugs.Such a key is for example from the EP 1 247 926 A2 known. In this key, the longitudinal ribs merge with a broadening formed by a radius in the transverse rib. This leads to a high stability of the key. However, these spacers allow for easy alignment of a manipulation tool inserted into a lock channel for receiving the key.

Die EP 0 144 734 A1 offenbart einen gerade Längsrippen und Querrippen aufweisenden Schlüssel. Ein für einen solchen Schlüssel angepasster Schließkanal erschwert das Ausrichten eines Manipulationswerkzeugs. Jedoch hat der Schlüssel nur eine geringe Stabilität.The EP 0 144 734 A1 discloses a key having straight longitudinal ribs and transverse ribs. An adapted for such a key locking channel makes this difficult Align a manipulation tool. However, the key has little stability.

Ein Schlüssel ist beispielsweise aus der EP 0 166 945 A1 bekannt und hat einen Abschnitt mit einem G-förmigen Querschnitt im Schaft. Der den G-förmigen Querschnitt aufweisende Abschnitt unterteilt einen unteren, der Schlüsselbrust zugewandten Profilbereich und einen oberen, dem Schlüsselrücken zugewandten Profilbereich. Diese Form erschwert bei einem entsprechend angepassten Schließkanal im Schließzylinder das Einführen eines Manipulationswerkzeuges in den Schließkanal. Nachteilig bei dem bekannten Schlüssel ist jedoch, dass er sehr schwierig zu fertigen ist und nur eine geringe Stabilität hat. Die geringe Stabilität des Schlüssels erfordert jedoch einen dickwandigen Schaft, was wiederum zu einem breiten Schließkanal führt. Wegen der großen Abmessungen lässt sich schließlich besonders einfach ein Manipulationswerkzeug in den Schließkanal einführen.A key is for example from the EP 0 166 945 A1 known and has a portion with a G-shaped cross-section in the shaft. The portion having the G-shaped cross section divides a lower profile area facing the key-chest and an upper profile area facing the key-back. This form impedes the insertion of a manipulation tool in the closing channel with a correspondingly adapted closing channel in the lock cylinder. A disadvantage of the known key, however, is that it is very difficult to manufacture and has only a low stability. However, the low stability of the key requires a thick-walled shaft, which in turn leads to a wide closing channel. Finally, due to the large dimensions, it is particularly easy to insert a manipulation tool into the closing channel.

Weiterhin sind aus der Praxis Schlüssel bekannt, bei denen der Schaft im Querschnitt wellenförmig gestaltet ist. Der den Schaft aufnehmende Schließkanal des Schlüssels muss dann ebenfalls eine Wellenform aufweisen. Diese Gestaltung ermöglicht eine besonders einfache Manipulation, da hier das Manipulationswerkzeug lediglich biegsam ausgebildet sein muss, um den Schließkanal auszufüllen. Solche Schlüssel lassen sich daher besonders einfach durch ein Manipulationswerkzeug ersetzen.Furthermore, keys are known from practice, in which the shaft is designed wavy in cross section. The shaft receiving the lock channel of the key must then also have a waveform. This design allows a particularly simple manipulation, since here the manipulation tool only has to be made flexible in order to fill the closing channel. Such keys can therefore be replaced particularly easily by a manipulation tool.

Der Erfindung liegt das Problem zugrunde, den Schlüssel der eingangs genannten Art so zu gestalten, dass er eine besonders hohe Stabilität aufweist und dass ein Ersatz des Schlüssels durch ein Manipulationswerkzeug zum Entriegeln des Schließzylinders erschwert wird.The invention is based on the problem of designing the key of the type mentioned above so that it has a particularly high stability and that replacement of the key by a manipulation tool for unlocking the lock cylinder is made more difficult.

Dieses Problem wird erfindungsgemäß dadurch gelöst, dass die Längsrippen jeweils zwei gegensinnig ausgerichtete Kreisbögen aufweisen und dass die einzelnen Kreisbögen tangential ineinander übergehen.This problem is inventively solved in that the longitudinal ribs each have two oppositely oriented circular arcs and that the individual circular arcs merge tangentially into each other.

Durch diese Gestaltung ist der den Schaft aufnehmende Schließkanal in Abschnitte zur Aufnahme der mittleren Querrippe und Abschnitte zur Aufnahme der Längsrippen unterbrochen. Dank der Erfindung hat der Schaft durch die Formgebung eine hohe Stabilität und kann daher mit einer sehr geringen Wandstärke versehen sein. Die geringe Wandstärke begrenzt jedoch die Stabilität eines möglichen Manipulationswerkzeuges, da der Schließkanal zur Aufnahme des Schlüssels die Breite der Längsrippen und der Querrippen aufweist. Durch die Unterteilung mittels der mittleren Querrippe hat der Schaft einen oberen, dem Schlüsselrücken nahen Profilbereich zur Erzeugung einer großen Profilvariation, welche im Schließzylinder durch ein entsprechendes Profil des Schließkanals oder durch weitere Zuhaltungen abgetastet werden kann. Ein unterer, der Schlüsselbrust naher Profilbereich weist die Schließkerben auf und hat nur geringe Abmessungen. Damit wird das Einführen eines Manipulationswerkzeuges, wie beispielsweise einer Pickingnadel in den dem erfindungsgemäßen Schlüssel angepassten Schließkanal wesentlich erschwert. Weiterhin wird durch die Abschnitte ein Schwingen des Manipulationswerkzeuges, wie es zur Einleitung eines Impulses in die Stiftzuhaltungen des Schließzylinders erforderlich ist, behindert. Durch die erfindungsgemäße Gestaltung hat der erfindungsgemäße Schlüssel an jedem Übergang der Längsrippen zu der mittleren Querrippe einen Knick, welcher bei entsprechend angepasstem Schließkanal einen senkrechten Zugang zu den Stiftzuhaltungen des Schließzylinders verhindert. Damit kann über den die mittlere Querrippe aufnehmenden Abschnitt des Schließkanals keine Kraft in die Stiftzuhaltungen des Schließzylinders eingeleitet werden. Ein in den für die Längsrippe des erfindungsgemäßen Schlüssels vorgesehenen Abschnitt des Schließkanals eingeführtes Manipulationswerkzeug wird zuverlässig zur Seite hin weg gedrückt, weil die Längsrippen jeweils zwei gegensinnig ausgerichtete Kreisbögen aufweisen und wenn die einzelnen Kreisbögen tangential ineinander übergehen. Hierdurch bilden die Längsrippen jeweils eine Zwangsführung für das Manipulationswerkzeug. Von dem Manipulationswerkzeug erzeugte Impulse können damit nicht senkrecht in die Stiftzuhaltungen des Schließzylinders eingeleitet werden.With this configuration, the closing channel receiving the shaft is interrupted into sections for receiving the middle transverse rib and sections for receiving the longitudinal ribs. Thanks to the invention, the shaft has a high stability by the shape and can therefore be provided with a very small wall thickness. However, the small wall thickness limits the stability of a possible manipulation tool, since the closing channel for receiving the key has the width of the longitudinal ribs and the transverse ribs. As a result of the subdivision by means of the middle transverse rib, the shank has an upper profiled area close to the spine for producing a large profile variation, which can be scanned in the closing cylinder by a corresponding profile of the closing channel or by further tumblers. A lower, the key-breast near profile area has the closing notches and has only small dimensions. Thus, the introduction of a manipulation tool, such as a picking needle in the key of the invention adapted closing channel is much more difficult. Furthermore, by the sections a swinging of the manipulation tool, as it is required to initiate a pulse in the pin tumblers of the lock cylinder, obstructed. Due to the design according to the invention, the key according to the invention has at each transition of the longitudinal ribs to the middle transverse rib a kink, which prevents a correspondingly adapted closing channel vertical access to the pin tumblers of the lock cylinder. Thus, no force in the pin tumblers of the lock cylinder over the middle transverse rib receiving portion of the closing channel be initiated. A manipulation tool inserted into the section of the closing channel provided for the longitudinal rib of the key according to the invention is reliably pressed away to the side because the longitudinal ribs each have two oppositely directed circular arcs and when the individual circular arcs transition tangentially into one another. As a result, the longitudinal ribs each form a positive guide for the manipulation tool. Pulses generated by the manipulation tool can thus not be introduced vertically into the pin tumblers of the lock cylinder.

Eine in einen Schließkanal des Schließzylinders für den erfindungsgemäßen Schlüssel eingeführte Pickingnadel wird von radial innen nach radial außen geführt, wenn die Längsrippen zu der mittleren Querrippe hin nach außen geführt sind.An inserted into a closing channel of the lock cylinder for the key according to the invention picking needle is guided from radially inward to radially outward, when the longitudinal ribs are guided to the central transverse rib towards the outside.

Zu einer weiteren Erschwerung des Ersatzes des erfindungsgemäßen Schlüssels durch ein Manipulationswerkzeug trägt es bei, wenn die tiefste Schließkerbe bis in die mittlere Querrippe geführt und die nächste, dem Schlüsselrücken zugewandte Längsrippe seitlich außen an der mittlere Querrippe angelenkt ist. Hierdurch wird eine senkrechte Einleitung einer Kraft auf den Schließzylinder verhindert, wenn man das Manipulationswerkzeug in einen für die Längsrippe vorgesehenen Abschnitt des Schließkanals einführt. Führt man das Manipulationswerkzeug jedoch in den für die mittlere Querrippe vorgesehenen Abschnitt des Schließkanals ein, drückt dieser durch seine eigenen Abmessungen die höchste Stiftzuhaltung nieder und blockiert den Schließzylinder. Nur der erfindungsgemäße Schlüssel verhindert mit der tiefsten Schließkerbe ein Niederdrücken der höchsten Stiftzuhaltung und vermag dennoch dahinter liegende Stiftzuhaltungen zu betätigen.To further complicating the replacement of the key according to the invention by a manipulation tool, it contributes, when the deepest keyway is guided into the middle transverse rib and the next, the key back facing longitudinal rib is articulated laterally outside of the central transverse rib. As a result, a vertical introduction of a force on the lock cylinder is prevented when introducing the manipulation tool in a provided for the longitudinal rib portion of the closing channel. However, if one introduces the manipulation tool into the section of the closing channel intended for the middle transverse rib, this presses down the highest pin tumbler by its own dimensions and blocks the lock cylinder. Only the key according to the invention prevents with the deepest notch, a depression of the highest pin tumbler and yet able to operate behind pin tumblers.

Zur weiteren Behinderung des Ersatzes des erfindungsgemäßen Schlüssels durch ein Manipulationswerkzeug trägt es bei, wenn die mittlere Querrippe, in die die tiefste Schließkerbe geführt ist, einen die Stiftzuhaltung des Schließzylinders seitlich überragenden Fortsatz hat. Hierdurch benötigt der den Schaft des erfindungsgemäßen Schlüssels aufnehmende Schließkanal eine Tasche zur Aufnahme des Fortsatzes der mittleren Querrippe neben den Stiftzuhaltungen. Durch die Formgebung der Längsrippen wird ein Manipulationswerkzeug zuverlässig in die Tasche gelenkt und damit von den Stiftzuhaltungen fern gehalten. Wenn der Fortsatz zudem mittels einer Zuhaltung im Schließzylinder abgetastet wird, müssen in den die mittlere Querrippe aufnehmenden Abschnitt des Schließkanals zwei Manipulationswerkzeuge gleichzeitig eingeführt werden, was die Manipulationssicherheit des Schließzylinders weiter erhöht.To further hinder the replacement of the key according to the invention by a manipulation tool, it contributes, if the middle transverse rib, in which the deepest keyway is guided, has a the pin tumbler of the lock cylinder laterally projecting extension. This requires the shaft of the key according to the invention receiving lock channel a pocket for receiving the extension of the middle transverse rib next to the pin tumblers. By shaping the longitudinal ribs a manipulation tool is reliably directed into the pocket and thus kept away from the pin tumblers. If the extension is also scanned by means of a tumbler in the lock cylinder, two manipulation tools must be introduced simultaneously in the middle transverse rib receiving portion of the closing channel, which further increases the tamper resistance of the lock cylinder.

Der erfindungsgemäße Schlüssel weist eine hohe Stabilität auf und vermag daher ein hohes Drehmoment zu übertragen, wenn der Schaft mehrere Querrippen aufweist und wenn die Querrippen untereinander über Längsrippen miteinander verbunden sind.The key according to the invention has a high stability and is therefore able to transmit a high torque when the shaft has a plurality of transverse ribs and when the transverse ribs are interconnected via longitudinal ribs.

Zur weiteren Erhöhung der Stabilität des erfindungsgemäßen Schlüssels trägt es bei, wenn eine der Querrippen den Schlüsselrücken bildet.To further increase the stability of the key according to the invention, it helps if one of the transverse ribs forms the back of the key.

Zur weiteren Erhöhung der Stabilität des erfindungsgemäßen Schlüssels trägt es bei, wenn der Schaft über einen gesamten, von den Querrippen und den Längsrippen gebildeten Profilbereich eine einheitliche Wandstärke hat.To further increase the stability of the key according to the invention, it is helpful if the shaft has a uniform wall thickness over an entire profile region formed by the transverse ribs and the longitudinal ribs.

Die mögliche Stärke eines Manipulationswerkzeuges und damit dessen Stabilität lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach begrenzen, wenn der Schaft eine mittlere Wandstärke von 0,8 mm hat. Durch diese Gestaltung ist der erfindungsgemäße Schlüssel wesentlich dünner als bekannte Schlüssel. Der erfindungsgemäße Schlüssel weist jedoch durch die Anordnung einer oder mehrerer Querrippen und Längsrippen und durch die Formgebung der die Kreisbögen aufweisenden Längsrippen eine hohe Stabilität auf und vermag daher ein ausreichendes Drehmoment auf einen Kern des Schließzylinders zu übertragen.The possible strength of a manipulation tool and thus its stability can be easily limited according to another advantageous development of the invention, if the shaft has a mean wall thickness of 0.8 mm. By this design, the key according to the invention is substantially thinner than known key. However, the key according to the invention has by the arrangement of one or more transverse ribs and longitudinal ribs and by the shape of the circular arcs having longitudinal ribs on a high stability and therefore can transmit a sufficient torque to a core of the lock cylinder.

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

Fig. 1
einen Teilschnitt durch einen Schließzylinder mit einem darin eingeführten erfindungsgemäßen Schlüssel,
Fig. 2
vergrößert eine Schnittdarstellung durch einen Kern des Schließzylinders mit dem erfindungsgemäßen Schlüssel aus Figur 1 entlang der Linie II - II,
Fig. 3 - 5
Schnittdarstellungen von verschiedenen Ausführungsformen des erfindungsgemäßen Schlüssels,
Fig. 6
eine weitere Schnittdarstellung durch einen Schlüssel mit dem Kern des Schließzylinders zur Erleichterung des Verständnisses von Stufen der Stiftzuhaltungen.
The invention allows numerous embodiments. To further clarify its basic principle, several of them are shown in the drawing and will be described below. This shows in
Fig. 1
a partial section through a lock cylinder with a key inserted therein according to the invention,
Fig. 2
enlarges a sectional view through a core of the lock cylinder with the key according to the invention FIG. 1 along the line II - II,
Fig. 3-5
Sectional views of various embodiments of the key according to the invention,
Fig. 6
another sectional view through a key with the core of the lock cylinder to facilitate the understanding of stages of Stiftzuhaltungen.

Figur 1 zeigt einen Teilschnitt durch einen Schließzylinder 1 mit einem in einem Gehäuse 2 drehbaren Kern 3 und mit einem Schlüssel 4. Der Kern 3 hat einen Schließkanal 5 zum Einführen eines Schaftes 6 des Schlüssels 4. Der Schlüssel 4 weist zudem eine Reide 7 zum Greifen auf. Die Bewegung des Kerns 3 gegenüber dem Gehäuse 2 lässt sich mittels mehrerer allgemein bekannter Stiftzuhaltungen 8 blockieren oder freigeben. Der Schaft 6 des Schlüssels 4 hat zur Ansteuerung der Stiftzuhaltungen 8 eine Reihe von Schließkerben 9. Die Schließkerben 9 sind in einer Schlüsselbrust 10 angeordnet, während die der Schlüsselbrust 10 abgewandte Seite des Schaftes 6 des Schlüssels 4 einen Schlüsselrücken 11 bildet. FIG. 1 shows a partial section through a lock cylinder 1 with a rotatable in a housing 2 core 3 and with a key 4. The core 3 has a closing channel 5 for insertion of a shaft 6 of the key 4. The key 4 also has a Reide 7 for gripping. The movement of the core 3 relative to the housing 2 can be blocked or released by means of a plurality of generally known pin tumblers 8. The shank 6 of the key 4 has a series of locking notches 9 for controlling the pin tumblers 8. The locking notches 9 are arranged in a key-chest 10, while the side of the shank 6 of the key 4 facing away from the key-breast 10 forms a key back 11.

Figur 2 zeigt vergrößert eine Schnittdarstellung durch den Kern 3 des Schließzylinders 1 aus Figur 1 mit dem Schlüssel 4 im Bereich der höchsten Stiftzuhaltung 8. Der Schlüssel 4 hat für die höchste Stiftzuhaltung 8 entsprechend die tiefst mögliche Schließkerbe 9. Die tiefst mögliche Schließkerbe 9 ist bis zu einer mittleren Querrippe 12 des Schlüssels 4 geführt. An dieser mittleren Querrippe 12 schließen sich jeweils in Richtung des Schlüsselrückens 11 und der Schlüsselbrust 10 weisende Längsrippen 13, 14 an. Die Längsrippen 13, 14 weisen jeweils zwei Kreisbögen 15, 16 auf, welche tangential ineinander übergehen. Die Längsrippen 13, 14 und die Querrippe 12 stoßen im rechten Winkel aufeinander. Weiterhin ist der Schlüsselrücken 11 von einer weiteren Querrippe 17 gebildet. Der Schlüssel 4 hat zudem jeweils eine weitere Querrippe 18, 19 zwischen dem Schlüsselrücken 11 und der mittleren Querrippe 12 und zwischen der mittleren Querrippe 12 und der Schlüsselbrust 10. Die außerhalb der Schließkerbe 9 angeordneten Querrippen 18, 19 sind über eine weitere Längsrippe 20 miteinander verbunden. Eine weitere Längsrippe 21 ist zu der Schlüsselbrust 10 geführt. Die weiteren Längsrippen 20, 21 sind wie die an die mittlere Querrippe 12 angrenzenden Längsrippen 13, 14 aufgebaut. FIG. 2 shows enlarged a sectional view through the core 3 of the lock cylinder 1 from FIG. 1 with the key 4 in the area of the highest pin tumbler 8. The key 4 has the highest possible notch 9 for the highest pin tumbler 8. The lowest possible notch 9 is led to a central transverse rib 12 of the key 4. At this middle transverse rib 12 each close in the direction of the key back 11 and the key-chest 10 facing longitudinal ribs 13, 14 at. The longitudinal ribs 13, 14 each have two circular arcs 15, 16, which merge tangentially into one another. The longitudinal ribs 13, 14 and the transverse rib 12 abut one another at right angles. Furthermore, the key back 11 is formed by a further transverse rib 17. The key 4 also has in each case a further transverse rib 18, 19 between the key back 11 and the middle transverse rib 12 and between the middle transverse rib 12 and the key-chest 10. The transverse ribs 18, 19 arranged outside the closing notch 9 are connected to one another via a further longitudinal rib 20 , Another longitudinal rib 21 is guided to the key-chest 10. The further longitudinal ribs 20, 21 are constructed like the longitudinal ribs 13, 14 adjoining the central transverse rib 12.

Deutlich ist in Figur 2 zu erkennen, dass die Längsrippen 13, 14, 20, 21 und die Querrippen 12, 17 - 19 jeweils versetzt zueinander angeordnet sind. Wenn man den Schlüssel 4 aus dem Schließkanal 5 entfernt, sind die die Längsrippen 13, 14, 20, 21 aufnehmenden Abschnitte des Schließkanals 5 durch den Versatz nicht auf senkrechtem Wege zugänglich. Ein in einen der Abschnitte für die Längsrippen 13, 14, 20, 21 eingeführtes Manipulationswerkzeug kann daher nicht in den nächsten Abschnitt eingreifen. Die Anordnung und die Formgebung der Längsrippen 13, 14, 20, 21 und der Querrippen 12, 17 - 19 erzeugt eine hohe Stabilität des Schaftes 6 des Schlüssels 4, so dass dieser mit einer besonders dünnen Wandstärke gefertigt werden kann. Die von dem Schlüsselrücken 11 auf die mittlere Querrippe 12 stoßende Längsrippe 14 ist nach außen, von der Mittelebene des Schaftes 6 weg geführt. Zudem überragt die mittlere Querrippe 12 seitlich die Stiftzuhaltung 8 mit einem Fortsatz 22. Damit hat der Kern 3 eine Tasche 23 zur Aufnahme des Fortsatzes 22. Wird anstelle des Schlüssels 4 ein Manipulationswerkzeug in den Schließkanal 5 eingeführt, wird dieses durch die Form der auf die mittlere Querrippe 12 stoßenden Längsrippe 14 nach außen in die Tasche 23 des Kerns 3 gedrückt. Damit ist die Stiftzuhaltung 8 für das Manipulationswerkzeug nicht zugänglich.It is clear in FIG. 2 to recognize that the longitudinal ribs 13, 14, 20, 21 and the transverse ribs 12, 17 - 19 are each arranged offset from one another. If you remove the key 4 from the lock channel 5, the longitudinal ribs 13, 14, 20, 21 receiving portions of the closing channel 5 are not accessible by the offset on a vertical path. Therefore, a manipulation tool inserted into one of the sections for the longitudinal ribs 13, 14, 20, 21 can not engage in the next section. The arrangement and the shape of the longitudinal ribs 13, 14, 20, 21 and the transverse ribs 12, 17 - 19 produces a high stability of the shank 6 of the key 4, so that it can be manufactured with a particularly thin wall thickness. The abutting from the key back 11 on the central transverse rib 12 longitudinal rib 14 is outwardly, away from the median plane of the shaft 6. In addition, the central transverse rib 12 projects laterally beyond the pin tumbler 8 with an extension 22. The core 3 thus has a pocket 23 for receiving the extension 22. If a manipulation tool is inserted into the lock channel 5 instead of the key 4, this is replaced by the shape of the lock middle transverse rib 12 abutting longitudinal rib 14 outwardly pressed into the pocket 23 of the core 3. Thus, the pin tumbler 8 is not accessible to the manipulation tool.

Figur 3 zeigt einen Querschnitt durch eine weitere Ausführungsform des Schlüssels 4 mit verschiedenen, schraffiert dargestellten Flächen 24 zur Variation des Profils des Schaftes 6 des Schlüssels 4 zur Erzeugung einer Schließhierarchie. Dieser Schlüssel 4 unterscheidet sich von dem aus Figur 2 dadurch, dass der zur Ansteuerung der Stiftzuhaltung 8 vorgesehene Abschnitt des Schlüssels 4 eine einzige Längsrippe 25 hat. Die höchst mögliche Stiftzuhaltung 8 ist in Figur 3 strichpunktiert dargestellt. FIG. 3 shows a cross section through a further embodiment of the key 4 with various hatched areas 24 for varying the profile of the shaft 6 of the key 4 to create a closing hierarchy. This key 4 is different from that FIG. 2 in that the section of the key 4 provided for driving the pin tumbler 8 has a single longitudinal rib 25. The highest possible pin tumbler 8 is in FIG. 3 shown in phantom.

Figur 4 und 5 zeigen weitere Ausführungsformen des Schlüssels 4 im Querschnitt, welche sich durch die Formgebung von Längsrippen 26, 27 unterscheiden. Weiterhin sind mögliche Flächen 28, 29 zur Variation des Profils des Schlüssels 4 schraffiert dargestellt. FIGS. 4 and 5 show further embodiments of the key 4 in cross section, which differ in the shape of longitudinal ribs 26, 27. Furthermore, possible surfaces 28, 29 are shown hatched to vary the profile of the key 4.

Figur 6 zeigt einen Schlüssel 4 mit dem Kern 3 des Schließzylinders 1 im Querschnitt. Dieser Schlüssel 4 unterscheidet sich von den zuvor beschriebenen Schlüsseln dadurch, dass zwei Längsrippen 30, 31 gerade zu einer mittleren Querrippe 32 geführt und versetzt zueinander angeordnet sind. Mit 0 bis 8 sind verschiedene Stufen der Stiftzuhaltungen 8 und damit die Schließkerben 9 gekennzeichnet. Weiterhin sind Flächen 33 für eine mögliche Profilvariation schraffiert dargestellt. FIG. 6 shows a key 4 with the core 3 of the lock cylinder 1 in cross section. This key 4 differs from the previously described keys in that two longitudinal ribs 30, 31 are guided straight to a central transverse rib 32 and offset from one another. With 0 to 8 different stages of Stiftzuhaltungen 8 and thus the closing notches 9 are marked. Furthermore, areas 33 are shown hatched for a possible profile variation.

Claims (8)

  1. Key for a locking cylinder with a shaft, with a key front and a key back, which together form two narrow sides of the shaft, with locking notches arranged on the lock for controlling pin tumblers in the locking cylinder and with side faces which connect the back of the key with the front of the key, wherein the shaft (6) has a central transverse rib (12), on this central transverse rib (12) there is a longitudinal rib (13, 14, 26, 27, 30, 31) facing in the direction of both the key back (11) and key front (10) connected to the central transverse rib (12, 32) and the longitudinal ribs (13, 14, 26, 27), in which adjacent sections on the central transverse rib are offset against each other with zero overlap, and wherein the longitudinal ribs (13, 14, 26, 27) and the central transverse rib (12, 32) meet at a right angle to each other, characterized in that the longitudinal ribs (13, 14) each have two oppositely oriented circular arcs (15, 16) and that the individual circular arcs (15, 16) merge tangentially.
  2. Key according to claim 1, characterized in that the longitudinal ribs (13, 14, 26, 27) are guided toward the outside as far as the central transverse rib (12).
  3. Key according to one of claims 1 or 2, characterized in that the deepest locking notch (9) is guided as far as the central transverse rib (12, 32) and the closest longitudinal rib (14, 26, 27) facing the key back is laterally hinged to the outside of the central transverse rib (12).
  4. Key according to claim 3, characterized in that the central transverse rib (12, 32) into which the deepest locking notch (9) is guided, has a laterally projecting extension (22) reaching beyond the pin tumbler (8) of the locking cylinder (1).
  5. Key according to one of claims 1 to 4, characterized in that the shaft(6) is comprised of several transverse ribs (12, 17-19) and that the transverse ribs (12, 17 -19) are interconnected via longitudinal ribs (13, 14, 20, 21, 25, 26, 27).
  6. Key according to one of claims 1 to 5, characterized in that one of the transverse ribs (17) forms the back of the key (11).
  7. Key according to one of claims 1 to 6, characterized in that the shaft (6) has uniform wall thickness over an entire profile area formed of the transverse ribs (12, 17-19) and the longitudinal ribs (13, 14, 20, 21, 25, 26, 27).
  8. Key according to one of claims 1 to 7, characterized in that the shaft (6) has an average wall thickness of 0.8 mm.
EP09173223.0A 2008-11-14 2009-10-16 Key for a lock cylinder Active EP2186975B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI200931244T SI2186975T1 (en) 2008-11-14 2009-10-16 Key for a lock cylinder
PL09173223T PL2186975T3 (en) 2008-11-14 2009-10-16 Key for a lock cylinder
HRP20151010TT HRP20151010T1 (en) 2008-11-14 2015-09-24 Key for a lock cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008043747A DE102008043747A1 (en) 2008-11-14 2008-11-14 Key for a lock cylinder

Publications (3)

Publication Number Publication Date
EP2186975A2 EP2186975A2 (en) 2010-05-19
EP2186975A3 EP2186975A3 (en) 2012-05-30
EP2186975B1 true EP2186975B1 (en) 2015-07-15

Family

ID=41692353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09173223.0A Active EP2186975B1 (en) 2008-11-14 2009-10-16 Key for a lock cylinder

Country Status (6)

Country Link
EP (1) EP2186975B1 (en)
DE (1) DE102008043747A1 (en)
ES (1) ES2548016T3 (en)
HR (1) HRP20151010T1 (en)
PL (1) PL2186975T3 (en)
SI (1) SI2186975T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012016529A1 (en) * 2012-08-16 2014-02-20 Assa Abloy Sicherheitstechnik Gmbh Lock and key system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3464397D1 (en) 1983-11-05 1987-07-30 Zeiss Ikon Ag Key and lock combination, especially for locking units
IT1179347B (en) 1984-06-01 1987-09-16 Italiana Serrature Affini CYLINDER LOCK WITH RELEVANT INCORPORATING KEY FOR ANTI-BURGLAR DEVICES
DE3603687A1 (en) * 1986-02-06 1987-08-13 Dom Sicherheitstechnik LOCKING CYLINDER AND RELATED FLAT KEY
AT392666B (en) * 1986-06-03 1991-05-27 Klausser Konrad CYLINDER LOCK
BE1011912A3 (en) 1998-08-28 2000-02-01 Litto Assembly of cylinder and turn key.
DE102005000092A1 (en) * 2005-07-20 2007-03-01 Aug. Winkhaus Gmbh & Co. Kg Key for a locking system

Also Published As

Publication number Publication date
DE102008043747A1 (en) 2010-05-20
ES2548016T3 (en) 2015-10-13
EP2186975A3 (en) 2012-05-30
HRP20151010T1 (en) 2015-11-06
SI2186975T1 (en) 2015-12-31
EP2186975A2 (en) 2010-05-19
PL2186975T3 (en) 2015-12-31

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