EP2078807B1 - Key for a lock cylinder - Google Patents

Key for a lock cylinder Download PDF

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Publication number
EP2078807B1
EP2078807B1 EP08171786.0A EP08171786A EP2078807B1 EP 2078807 B1 EP2078807 B1 EP 2078807B1 EP 08171786 A EP08171786 A EP 08171786A EP 2078807 B1 EP2078807 B1 EP 2078807B1
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EP
European Patent Office
Prior art keywords
shaft
key
tapered section
broad sides
key according
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.)
Not-in-force
Application number
EP08171786.0A
Other languages
German (de)
French (fr)
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EP2078807A2 (en
EP2078807A3 (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.)
Filing date
Publication date
Application filed by Aug Winkhaus GmbH and Co KG filed Critical Aug Winkhaus GmbH and Co KG
Priority to SI200831874T priority Critical patent/SI2078807T1/en
Priority to PL08171786T priority patent/PL2078807T3/en
Publication of EP2078807A2 publication Critical patent/EP2078807A2/en
Publication of EP2078807A3 publication Critical patent/EP2078807A3/en
Application granted granted Critical
Publication of EP2078807B1 publication Critical patent/EP2078807B1/en
Priority to HRP20171722TT priority patent/HRP20171722T1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • E05B19/0035—Key profiles characterized by longitudinal bit variations

Definitions

  • the invention relates to a key for a lock cylinder with a shaft and a Reide and arranged on opposite broad sides of the shaft, arranged parallel to the shaft profile grooves.
  • Such keys are used in lock cylinders, for example in locking systems and are known.
  • the broad sides of the shaft connect a key back with a key-chest.
  • In the key-chest closing notches are often arranged, which cooperate with pin tumblers of the lock cylinder.
  • the profile grooves arranged in the broad sides generally correspond with a profile in a core of the lock cylinder and thus make it possible to introduce the key into the lock cylinder. This makes it possible to create higher-level keys by varying the variants of the profile grooves, for example for use in master key systems with different hierarchical levels of the keys.
  • the broadsides can also be scanned by pin tumblers.
  • a key of the type mentioned in which near the free end of the shaft, an area with a short distance of the broad sides and near the Reide an area is arranged with a large distance of the broad sides.
  • the key in the front, arranged near a key tip area allows a different arrangement of profile grooves as in the rear, near the Reide arranged area.
  • the key can be created by joining two differently wide elements. This increases the security of the key against copying.
  • a different variation of the key which can be used for master key systems, is made possible by different lengths of the front area in relation to the remaining insertion length.
  • a disadvantage of the known key is that the key can still be copied by simply measuring the different widths of the shaft areas on conventional copying machines.
  • a front, narrow shaft member and a rear wide shaft member are simply formed by conventional copying, and then the shaft members are connected together.
  • the invention is based on the problem, a key of the type mentioned in such a way that a copying is further difficult.
  • the shaft has a tapered portion and that the tapered portion produces a steady reduction in the thickness of the shaft from the Reide to the key tip and that the shaft near the Reide is thicker than near the key tip.
  • the tapered portion of the shaft leads to a significant complication of the copying of the key according to the invention.
  • Conventional copying machines are only able to scan the profile at a single point. If this scanning is attempted on the key according to the invention, the copying machine is created either a too narrow or too wide a key. If the key is too wide, the Shank can not be inserted into the closing channel of the lock cylinder. Too narrow a shaft can be scanned by pin tumblers in the lock cylinder and thus closing with this key can be prevented. An assembling of the key according to the invention from separately made with the conventional copying machine shaft elements is not possible because of the tapered portion.
  • a scanning of the shaft by means of a conventional copying machine leads according to an advantageous development of the invention at different points to different key profiles, if the profile grooves over the entire length of the shank have a constant depth throughout.
  • Conventional copying machines are not able to scan such profiles. Therefore, when scanning perpendicular to the longitudinal axis of the shaft, a different tread depth is determined at each point of the shaft.
  • the shaft since the shaft does not change abruptly, but steadily changes its thickness according to the invention, the shaft can not be approached by repeated scanning and section-wise copying with conventional copying machines. Thus, this design contributes to a particularly severe complication of copying the key according to the invention.
  • the section tapering to the longitudinal axis could extend completely over the at least one broad side of the shaft.
  • the shaft would be wedge-shaped and could be made in a tilted clamping on a milling machine.
  • the section may additionally know the position and the length of the tapered section in order to produce a copy of the key according to the invention.
  • a section which tapers differently than the tapered section may also be provided.
  • the key according to the invention can be designed in a particularly high number of hierarchy levels, when the tapered portion is generated by an inclination of both broad sides on the respective opposite broad side.
  • the key can be constructed symmetrically or have differently inclined sections on its two broad sides.
  • the various sections of the shaft can be easily produced by milling when the transition of the tapering section to the parallel section of the broad sides has a radius.
  • the shaft is structurally particularly simple according to another advantageous embodiment of the invention, when the tapered portion is formed as a slope.
  • the tapered portion has a curvature.
  • This is in the finished Key to determine the concrete shape of the shaft only with difficulty.
  • the difficulty of determining the concrete shape of the stem further limits the possibility of copying.
  • the curvature is concave.
  • the curvature can be generated for example by means of a roller cutter with a particularly large radius.
  • FIG. 1 shows a key with a shaft 1 and a Reide 2 in a side view of a broad side 3 of the shaft 1.
  • the broad side 3 connects a key back 4 with a key-chest 5 and has a Row of profile grooves 6, 7 on.
  • the profile grooves 6, 7 extend over the entire, provided for introduction into a lock cylinder, not shown shaft 1.
  • a plurality of locking notches 8 are arranged, which are scanned during insertion of the key in the lock cylinder pin tumblers.
  • the free, the Reide 2 remote from the end of the shaft 1 is referred to as key tip 9.
  • FIG. 2 shows in a sectional view through the shaft 1 of the key FIG. 1 along the line II - II that profile grooves 6, 7 in two broad sides 3, 3 'of the shaft 1 are arranged. Different, juxtaposed profile grooves 6, 7, 10, 11 have a different depth.
  • FIG. 3 shows a sectional view through the shaft 1 of the key FIG. 1 along the line III - III. It can be seen that the shaft 1 is thicker near the Reide 2 than near the key tip 9. However, over the length of the shaft 1 extending Profinuten 6, 7, 10, 11 have the same profile depth at each point.
  • FIG. 4a shows in a view on the key back 4 of the key FIG. 1 in that the shank 1 has a tapered section 12 arranged inclined to the longitudinal axis of the shank 1, whereby the in the FIGS. 2 and 3 shown different thicknesses of the shaft 1 are generated.
  • the shaft 1 is symmetrical.
  • the longitudinal axis is formed in this embodiment of the dash-dotted symmetry axis.
  • the two broad sides 3, 3 'of the shaft 1 are constructed the same.
  • the shank 1 has a parallel section 13 of the broad sides which extends on the inclined section 12 to the key tip 9 3, 3 'with a constant thickness.
  • the transition of the tapered portion 12 to the portion 13 of constant thickness has a radius R.
  • FIG. 4b shows a further embodiment of the key FIG. 1 in a view on the spine 4.
  • the tapered portion 14 extends over the entire length of the shaft 1 and can for example be generated by a roll milling cutter with a particularly large radius R.
  • Figure 4c shows a further embodiment of the key FIG. 1 in a view on the spine 4, in which a tapered portion 15 of the shaft 1 between two portions 16, 17 of constant thickness is arranged.
  • One of the broad sides 3 'of the shaft 1 is straight, while the different sections 15 - 17 are generated by the shape of the other broad side 3.
  • the inclined portion 15 may extend over the entire length of the shaft 1.

Description

Die Erfindung betrifft einen Schlüssel für einen Schließzylinder mit einem Schaft und einer Reide und mit auf einander gegenüberstehenden Breitseiten des Schaftes angeordneten, parallel zum Schaft angeordneten Profilnuten.The invention relates to a key for a lock cylinder with a shaft and a Reide and arranged on opposite broad sides of the shaft, arranged parallel to the shaft profile grooves.

Solche Schlüssel werden bei Schließzylindern beispielsweise in Schließanlagen eingesetzt und sind bekannt. Die Breitseiten des Schaftes verbinden einen Schlüsselrücken mit einer Schlüsselbrust. In der Schlüsselbrust sind häufig Schließkerben angeordnet, welche mit Stiftzuhaltungen des Schließzylinders zusammenwirken. Die in den Breitseiten angeordneten Profilnuten korrespondieren in der Regel mit einem Profil in einem Kern des Schließzylinders und ermöglichen damit die Einführung des Schlüssels in den Schließzylinder. Hierdurch ist es möglich, durch Variation der Varianten der Profilnuten übergeordnete Schlüssel, beispielsweise für den Einsatz in Hauptschlüsselanlagen mit unterschiedlichen Hierarchieebenen der Schlüssel zu erstellen. Die Breitseiten können ebenfalls von Stiftzuhaltungen abgetastet werden.Such keys are used in lock cylinders, for example in locking systems and are known. The broad sides of the shaft connect a key back with a key-chest. In the key-chest closing notches are often arranged, which cooperate with pin tumblers of the lock cylinder. The profile grooves arranged in the broad sides generally correspond with a profile in a core of the lock cylinder and thus make it possible to introduce the key into the lock cylinder. This makes it possible to create higher-level keys by varying the variants of the profile grooves, for example for use in master key systems with different hierarchical levels of the keys. The broadsides can also be scanned by pin tumblers.

Aus der DE 35 21 530 A1 ist ein Schlüssel der eingangs genannten Art bekannt geworden, bei dem nahe des freien Endes des Schaftes ein Bereich mit einem geringen Abstand der Breitseiten und nahe der Reide ein Bereich mit einem großen Abstand der Breitseiten angeordnet ist. Zudem ermöglicht der Schlüssel im vorderen, nahe einer Schlüsselspitze angeordneten Bereich eine andere Anordnung an Profilnuten als im hinteren, nahe der Reide angeordneten Bereich. Der Schlüssel kann durch Fügen zweier unterschiedlich breiter Elemente erzeugt werden. Hierdurch wird die Sicherheit des Schlüssels gegen ein Kopieren erhöht. Weiterhin wird durch unterschiedliche Längen des vorderen Bereichs im Verhältnis zur restlichen Einschublänge eine weitere Variation des Schlüssels ermöglicht, welche für Hauptschlüsselanlagen genutzt werden kann.From the DE 35 21 530 A1 a key of the type mentioned is known, in which near the free end of the shaft, an area with a short distance of the broad sides and near the Reide an area is arranged with a large distance of the broad sides. In addition, the key in the front, arranged near a key tip area allows a different arrangement of profile grooves as in the rear, near the Reide arranged area. The key can be created by joining two differently wide elements. This increases the security of the key against copying. Furthermore, a different variation of the key, which can be used for master key systems, is made possible by different lengths of the front area in relation to the remaining insertion length.

Nachteilig bei dem bekannten Schlüssel ist, dass der Schlüssel durch einfaches Abmessen der unterschiedlich breiten Bereiche des Schaftes dennoch auf herkömmlichen Kopiermaschinen kopiert werden kann. Beim Kopieren werden einfach ein vorderes, schmales Schaftelement und ein hinteres breites Schaftelement durch herkömmliches Kopieren erzeugt und anschließend die Schaftelemente miteinander verbunden.A disadvantage of the known key is that the key can still be copied by simply measuring the different widths of the shaft areas on conventional copying machines. When copying, a front, narrow shaft member and a rear wide shaft member are simply formed by conventional copying, and then the shaft members are connected together.

Der Erfindung liegt das Problem zugrunde, einen Schlüssel der eingangs genannten Art so weiterzubilden, dass ein Kopieren weiter erschwert wird.The invention is based on the problem, a key of the type mentioned in such a way that a copying is further difficult.

Dieses Problem wird erfindungsgemäß dadurch gelöst, dass der Schaft einen verjüngenden Abschnitt aufweist und dass der verjüngende Abschnitt ausgehend von der Reide zu der Schlüsselspitze hin eine stetige Verringerung der Dicke des Schaftes erzeugt und dass der Schaft nahe der Reide dicker ist, als nahe der Schlüsselspitze.This problem is inventively solved in that the shaft has a tapered portion and that the tapered portion produces a steady reduction in the thickness of the shaft from the Reide to the key tip and that the shaft near the Reide is thicker than near the key tip.

Durch diese Gestaltung führt der verjüngende Abschnitt des Schaftes zu einer deutlichen Erschwerung des Kopierens des erfindungsgemäßen Schlüssels. Herkömmliche Kopiermaschinen vermögen nur an einer einzigen Stelle das Profil abzutasten. Wird dieses Abtasten bei dem erfindungsgemäßen Schlüssel versucht, erstellt die Kopiermaschine entweder einen zu schmalen oder einen zu breiten Schlüssel. Bei einem zu breiten Schlüssel vermag der Schaft nicht in den Schließkanal des Schließzylinders eingeführt werden. Ein zu schmaler Schaft kann von Stiftzuhaltungen im Schließzylinder abgetastet und damit ein Schließen mit diesem Schlüssel verhindert werden. Ein Zusammenstellen des erfindungsgemäßen Schlüssels aus getrennt voneinander mit der herkömmlichen Kopiermaschine gefertigten Schaftelementen ist wegen des verjüngenden Abschnitts nicht möglich.With this configuration, the tapered portion of the shaft leads to a significant complication of the copying of the key according to the invention. Conventional copying machines are only able to scan the profile at a single point. If this scanning is attempted on the key according to the invention, the copying machine is created either a too narrow or too wide a key. If the key is too wide, the Shank can not be inserted into the closing channel of the lock cylinder. Too narrow a shaft can be scanned by pin tumblers in the lock cylinder and thus closing with this key can be prevented. An assembling of the key according to the invention from separately made with the conventional copying machine shaft elements is not possible because of the tapered portion.

Ein Abtasten des Schaftes mittels einer herkömmlichen Kopiermaschine führt gemäß einer vorteilhaften Weiterbildung der Erfindung an verschiedenen Stellen zu unterschiedlichen Schlüsselprofilen, wenn die Profilnuten über die gesamte Länge des Schaftes durchgehend eine konstante Tiefe aufweisen. Herkömmliche Kopiermaschinen vermögen derartig Profile nicht abzutasten. Daher wird bei der Abtastung senkrecht zur Längsachse des Schaftes an jeder Stelle des Schaftes eine andere Profiltiefe ermittelt. Da der Schaft jedoch nicht sprunghaft, sondern nach der Erfindung stetig seine Dicke verändert, lässt sich der Schaft auch nicht durch mehrmaliges Abtasten und abschnittsweises Kopieren mit herkömmlichen Kopiermaschinen annähern. Damit trägt diese Gestaltung zu einer besonders starken Erschwerung des Kopierens des erfindungsgemäßen Schlüssels bei.A scanning of the shaft by means of a conventional copying machine leads according to an advantageous development of the invention at different points to different key profiles, if the profile grooves over the entire length of the shank have a constant depth throughout. Conventional copying machines are not able to scan such profiles. Therefore, when scanning perpendicular to the longitudinal axis of the shaft, a different tread depth is determined at each point of the shaft. However, since the shaft does not change abruptly, but steadily changes its thickness according to the invention, the shaft can not be approached by repeated scanning and section-wise copying with conventional copying machines. Thus, this design contributes to a particularly severe complication of copying the key according to the invention.

Der sich zu der Längsachse verjüngenden Abschnitt könnte sich beispielsweise vollständig über die zumindest eine Breitseite des Schaftes erstrecken. Damit wäre der Schaft keilförmig und könnte in einer geneigten Einspannung auf einer Fräsmaschine gefertigt werden. Zur weiteren Erschwerung des Kopierens des erfindungsgemäßen Schlüssels trägt es bei, wenn sich an dem verjüngenden Abschnitt zumindest ein paralleler Abschnitt der Breitseiten anschließt. Durch diese Gestaltung müssen für den Kopierer des erfindungsgemäßen Schlüssels neben der Art der Verjüngung des Abschnitts zusätzlich die Lage und die Länge des verjüngenden Abschnitts bekannt sein, um eine Kopie des erfindungsgemäßen Schlüssels zu erzeugen. Alternativ zu dem parallelen Abschnitt der Breitseiten kann auch ein im Vergleich zu dem verjüngenden Abschnitt andersartig verjüngender Abschnitt vorgesehen sein.For example, the section tapering to the longitudinal axis could extend completely over the at least one broad side of the shaft. Thus, the shaft would be wedge-shaped and could be made in a tilted clamping on a milling machine. To further complicate the copying of the key according to the invention, it contributes, if at least one parallel portion of the broad sides adjoins the tapered portion. By this design must be for the copier of the key according to the invention in addition to the type of taper In addition, the section may additionally know the position and the length of the tapered section in order to produce a copy of the key according to the invention. As an alternative to the parallel section of the broad sides, a section which tapers differently than the tapered section may also be provided.

Zur weiteren Erschwerung des Kopierens des erfindungsgemäßen Schlüssels trägt es bei, wenn der verjüngende Abschnitt im mittleren Bereich des Schaftes angeordnet ist und wenn sich an den Enden des verjüngenden Abschnitts jeweils ein paralleler Abschnitt der Breitseiten anschließt.To further complicate the copying of the key according to the invention it contributes, when the tapered portion is arranged in the central region of the shaft and when at the ends of the tapered portion in each case followed by a parallel section of the broad sides.

Der erfindungsgemäße Schlüssel lässt sich in einer besonders hohen Anzahl an Hierarchiestufen gestalten, wenn der verjüngende Abschnitt durch eine Neigung beider Breitseiten auf die jeweils gegenüberliegende Breitseite erzeugt ist. Hierbei kann der Schlüssel symmetrisch aufgebaut sein oder an seinen beiden Breitseiten unterschiedlich geneigte Abschnitte aufweisen.The key according to the invention can be designed in a particularly high number of hierarchy levels, when the tapered portion is generated by an inclination of both broad sides on the respective opposite broad side. In this case, the key can be constructed symmetrically or have differently inclined sections on its two broad sides.

Die verschiedenen Abschnitte des Schaftes lassen sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach im Fräsverfahren fertigen, wenn der Übergang des verjüngenden Abschnitts gegen den parallelen Abschnitt der Breitseiten einen Radius aufweist.According to another advantageous development of the invention, the various sections of the shaft can be easily produced by milling when the transition of the tapering section to the parallel section of the broad sides has a radius.

Der Schaft gestaltet sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung konstruktiv besonders einfach, wenn der verjüngende Abschnitt als Schräge ausgebildet ist.The shaft is structurally particularly simple according to another advantageous embodiment of the invention, when the tapered portion is formed as a slope.

Zur weiteren Erschwerung des Kopierens des erfindungsgemäßen Schlüssels trägt es bei, wenn der verjüngende Abschnitt eine Wölbung aufweist. Hierdurch ist bei dem fertigen Schlüssel die konkrete Form des Schaftes nur schwierig zu ermitteln. Die Schwierigkeit der Ermittlung der konkreten Form des Schaftes schränkt die Möglichkeit des Kopierens weiter ein. Vorzugsweise ist die Wölbung konkav. Die Wölbung kann beispielsweise mittels eines Walzenfräsers mit einem besonders großen Radius erzeugt werden.To further complicate the copying of the key according to the invention, it contributes, when the tapered portion has a curvature. This is in the finished Key to determine the concrete shape of the shaft only with difficulty. The difficulty of determining the concrete shape of the stem further limits the possibility of copying. Preferably, the curvature is concave. The curvature can be generated for example by means of a roller cutter with a particularly large radius.

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 erfindungsgemäßen Schlüssel in einer Seitenansicht,
Fig. 2
vergrößert eine Schnittdarstellung durch den erfindungsgemäßen Schlüssel aus Figur 1 entlang der Linie II - II,
Fig. 3
vergrößert eine Schnittdarstellung durch den erfindungsgemäßen Schlüssel aus Figur 1 entlang der Linie III - III,
Fig. 4a
eine Ansicht des erfindungsgemäßen Schlüssels aus Figur 1 auf einen Schlüsselrücken,
Fig.4b, 4c
mehrere Ansichten auf den Schlüsselrücken von weiteren Ausführungsformen des erfindungsgemäßen Schlüssels.
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 key according to the invention in a side view,
Fig. 2
enlarges a sectional view of the key according to the invention FIG. 1 along the line II - II,
Fig. 3
enlarges a sectional view of the key according to the invention FIG. 1 along the line III - III,
Fig. 4a
a view of the key according to the invention FIG. 1 on a key back,
Fig.4b, 4c
several views on the key back of further embodiments of the key according to the invention.

Figur 1 zeigt einen Schlüssel mit einem Schaft 1 und einer Reide 2 in einer Seitenansicht auf eine Breitseite 3 des Schaftes 1. Die Breitseite 3 verbindet einen Schlüsselrücken 4 mit einer Schlüsselbrust 5 und weist eine Reihe von Profilnuten 6, 7 auf. Die Profilnuten 6, 7 erstrecken sich über den gesamten, zur Einführung in einen nicht dargestellten Schließzylinder vorgesehenen Schaft 1. In der Schlüsselbrust 5 sind mehrere Schließkerben 8 angeordnet, welche beim Einführen des Schlüssels in den Schließzylinder von Stiftzuhaltungen abgetastet werden. Das freie, der Reide 2 abgewandte Ende des Schaftes 1 wird als Schlüsselspitze 9 bezeichnet. FIG. 1 shows a key with a shaft 1 and a Reide 2 in a side view of a broad side 3 of the shaft 1. The broad side 3 connects a key back 4 with a key-chest 5 and has a Row of profile grooves 6, 7 on. The profile grooves 6, 7 extend over the entire, provided for introduction into a lock cylinder, not shown shaft 1. In the key breast 5 a plurality of locking notches 8 are arranged, which are scanned during insertion of the key in the lock cylinder pin tumblers. The free, the Reide 2 remote from the end of the shaft 1 is referred to as key tip 9.

Figur 2 zeigt in einer Schnittdarstellung durch den Schaft 1 des Schlüssels aus Figur 1 entlang der Linie II - II, dass Profilnuten 6, 7 in zwei Breitseiten 3, 3' des Schaftes 1 angeordnet sind. Unterschiedliche, nebeneinander angeordnete Profilnuten 6, 7, 10, 11 weisen eine unterschiedliche Tiefe auf. FIG. 2 shows in a sectional view through the shaft 1 of the key FIG. 1 along the line II - II that profile grooves 6, 7 in two broad sides 3, 3 'of the shaft 1 are arranged. Different, juxtaposed profile grooves 6, 7, 10, 11 have a different depth.

Figur 3 zeigt eine Schnittdarstellung durch den Schaft 1 des Schlüssels aus Figur 1 entlang der Linie III - III. Hierbei ist zu erkennen, dass der Schaft 1 nahe der Reide 2 dicker ist als nahe der Schlüsselspitze 9. Sich über die Länge des Schaftes 1 erstreckende Profinuten 6, 7, 10, 11 weisen jedoch an jeder Stelle dieselbe Profiltiefe auf. FIG. 3 shows a sectional view through the shaft 1 of the key FIG. 1 along the line III - III. It can be seen that the shaft 1 is thicker near the Reide 2 than near the key tip 9. However, over the length of the shaft 1 extending Profinuten 6, 7, 10, 11 have the same profile depth at each point.

Figur 4a zeigt in einer Ansicht auf den Schlüsselrücken 4 des Schlüssels aus Figur 1, dass der Schaft 1, einen sich verjüngenden, geneigt zur Längsachse des Schaftes 1 angeordneten Abschnitt 12 hat, wodurch die in den Figuren 2 und 3 dargestellten unterschiedlichen Dicken des Schaftes 1 erzeugt werden. Der Schaft 1 ist symmetrisch. Die Längsachse wird in diesem Ausführungsbeispiel von der strichpunktiert dargestellten Symmetrieachse gebildet. Damit sind die beiden Breitseiten 3, 3' des Schaftes 1 gleich aufgebaut. Der Schaft 1 weist einen sich an dem geneigt angeordneten Abschnitt 12 zu der Schlüsselspitze 9 hin erstreckenden, parallelen Abschnitt 13 der Breitseiten 3, 3' mit konstanter Dicke auf. Der Übergang des sich verjüngenden Abschnitts 12 zu dem Abschnitt 13 mit konstanter Dicke weist einen Radius R auf. FIG. 4a shows in a view on the key back 4 of the key FIG. 1 in that the shank 1 has a tapered section 12 arranged inclined to the longitudinal axis of the shank 1, whereby the in the FIGS. 2 and 3 shown different thicknesses of the shaft 1 are generated. The shaft 1 is symmetrical. The longitudinal axis is formed in this embodiment of the dash-dotted symmetry axis. Thus, the two broad sides 3, 3 'of the shaft 1 are constructed the same. The shank 1 has a parallel section 13 of the broad sides which extends on the inclined section 12 to the key tip 9 3, 3 'with a constant thickness. The transition of the tapered portion 12 to the portion 13 of constant thickness has a radius R.

Figur 4b zeigt eine weitere Ausführungsform des Schlüssels aus Figur 1 in einer Ansicht auf den Schlüsselrücken 4. Dieser unterscheidet sich von der aus Figur 4a dadurch, dass einer der Breitseiten 3' gerade ist und die andere der Breitseiten 3 einen sich verjüngenden Abschnitt 14 mit einer Wölbung zur Erzeugung der in den Figuren 2 und 3 dargestellten unterschiedlichen Dicken des Schaftes 1 hat. Der sich verjüngende Abschnitt 14 erstreckt sich über die gesamte Länge des Schaftes 1 und kann beispielsweise von einem Walzenfräser mit einem besonders großem Radius R erzeugt werden. FIG. 4b shows a further embodiment of the key FIG. 1 in a view on the spine 4. This differs from the FIG. 4a in that one of the broad sides 3 'is straight and the other of the broad sides 3 has a tapered section 14 with a curvature for producing the different thicknesses of the shaft 1 shown in FIGS. 2 and 3. The tapered portion 14 extends over the entire length of the shaft 1 and can for example be generated by a roll milling cutter with a particularly large radius R.

Figur 4c zeigt eine weitere Ausführungsform des Schlüssels aus Figur 1 in einer Ansicht auf den Schlüsselrücken 4, bei dem ein sich verjüngender Abschnitt 15 des Schaftes 1 zwischen zwei Abschnitten 16, 17 konstanter Dicke angeordnet ist. Eine der Breitseiten 3' des Schaftes 1 ist gerade, während die unterschiedlichen Abschnitte 15 - 17 durch die Formgebung der anderen Breitseite 3 erzeugt sind. In einer alternativen, nicht dargestellten Ausführungsform kann sich der geneigte Abschnitt 15 auch über die gesamte Länge des Schaftes 1 erstrecken. Figure 4c shows a further embodiment of the key FIG. 1 in a view on the spine 4, in which a tapered portion 15 of the shaft 1 between two portions 16, 17 of constant thickness is arranged. One of the broad sides 3 'of the shaft 1 is straight, while the different sections 15 - 17 are generated by the shape of the other broad side 3. In an alternative, not shown embodiment, the inclined portion 15 may extend over the entire length of the shaft 1.

Claims (8)

  1. A key for a cylinder lock with a shaft (1) and a handle (2), with profile grooves (6, 7) arranged on broad sides of the shaft (1) opposite one another and arranged parallel to the shaft (1), characterized in that the shaft (1) has a tapered section (12, 14, 15) and that the tapered section (12, 14, 15) generates a constant reduction of the thickness of the shaft (1) extending from the handle (2) toward the key tip (9) and that the shaft (1) close to the handle (2) is thicker than close to the key tip (9).
  2. A key according to Claim 1, characterized in that the profile grooves (6, 7, 10 11) continuously have a constant depth over the entire length of the shaft (1).
  3. A key according to Claim 1 or 2, characterized in that at least one parallel section (13, 16, 17) of the broad sides (3, 3') is connected to the tapered section (12, 14, 15).
  4. A key according to any one of the preceding claims, characterized in that the tapered section (14) is arranged in the middle area of the shaft (1) and that in each case a parallel section (16, 17) of the broad sides (3, 3') is connected to the ends of the tapered section (14).
  5. A key according to any one of the preceding claims, characterized in that the tapered section (12) is generated by an inclination of both broad sides (3, 3') to the respectively opposite broad side (3, 3').
  6. A key according to any one of the preceding claims, characterized in that the transition of the tapered section towards the parallel section (13) of the broad sides (3, 3') has a radius (R).
  7. A key according to any one of the preceding claims, characterized in that the tapered section (12, 15) is designed as an inclination.
  8. A key according to any one of the preceding claims, characterized in that the tapered section (14) has a curvature.
EP08171786.0A 2008-01-10 2008-12-16 Key for a lock cylinder Not-in-force EP2078807B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI200831874T SI2078807T1 (en) 2008-01-10 2008-12-16 Key for a lock cylinder
PL08171786T PL2078807T3 (en) 2008-01-10 2008-12-16 Key for a lock cylinder
HRP20171722TT HRP20171722T1 (en) 2008-01-10 2017-11-10 Key for a lock cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008000034A DE102008000034A1 (en) 2008-01-10 2008-01-10 Key for a lock cylinder

Publications (3)

Publication Number Publication Date
EP2078807A2 EP2078807A2 (en) 2009-07-15
EP2078807A3 EP2078807A3 (en) 2015-05-06
EP2078807B1 true EP2078807B1 (en) 2017-09-20

Family

ID=40641726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08171786.0A Not-in-force EP2078807B1 (en) 2008-01-10 2008-12-16 Key for a lock cylinder

Country Status (7)

Country Link
EP (1) EP2078807B1 (en)
DE (1) DE102008000034A1 (en)
ES (1) ES2645533T3 (en)
HR (1) HRP20171722T1 (en)
HU (1) HUE035562T2 (en)
PL (1) PL2078807T3 (en)
SI (1) SI2078807T1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8133140U1 (en) * 1981-11-13 1982-10-14 Fa. Aug. Winkhaus, 4404 Telgte LOCKING CYLINDER
DE3521530A1 (en) 1985-06-15 1986-12-18 Fa. Wilhelm Karrenberg, 5620 Velbert Key for lock cylinders
FR2714101B1 (en) * 1993-12-21 1996-03-08 Laperche Sa Safety barrel key for operating a lock and barrel operable by such a key.
ATE217934T1 (en) * 1999-05-08 2002-06-15 Schulte Zylinderschl Gmbh LOCKING DEVICE CONSISTING OF A LOCKING CYLINDER AND ASSOCIATED KEY
DE10105447A1 (en) * 2001-02-07 2002-08-08 Dom Sicherheitstechnik Flat key used as a turning key comprises a blade having rounded narrow and/or broad sides
DE102007000176A1 (en) * 2007-03-27 2008-10-02 Aug. Winkhaus Gmbh & Co. Kg Key for a lock cylinder and key with a lock cylinder
DE102007041964B3 (en) * 2007-09-03 2009-02-26 Assa Abloy Sicherheitstechnik Gmbh Lock-key combination

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL2078807T3 (en) 2018-03-30
EP2078807A2 (en) 2009-07-15
EP2078807A3 (en) 2015-05-06
DE102008000034A1 (en) 2009-07-16
SI2078807T1 (en) 2017-11-30
HRP20171722T1 (en) 2017-12-29
ES2645533T3 (en) 2017-12-05
HUE035562T2 (en) 2018-05-28

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