EP2146030B1 - Flat key - Google Patents

Flat key Download PDF

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Publication number
EP2146030B1
EP2146030B1 EP09009005A EP09009005A EP2146030B1 EP 2146030 B1 EP2146030 B1 EP 2146030B1 EP 09009005 A EP09009005 A EP 09009005A EP 09009005 A EP09009005 A EP 09009005A EP 2146030 B1 EP2146030 B1 EP 2146030B1
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EP
European Patent Office
Prior art keywords
flank
key
flat key
exit
radius
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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
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EP09009005A
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German (de)
French (fr)
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EP2146030A1 (en
Inventor
Walter Baumhauer
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EVVA Sicherheitstechnologie GmbH
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EVVA Sicherheitstechnologie GmbH
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Priority to PL09009005T priority Critical patent/PL2146030T3/en
Publication of EP2146030A1 publication Critical patent/EP2146030A1/en
Application granted granted Critical
Publication of EP2146030B1 publication Critical patent/EP2146030B1/en
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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
    • E05B19/0023—Key profiles characterized by variation of the contact surface between the key and the tumbler pins or plates
    • 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
    • E05B19/0052—Rectangular flat keys

Definitions

  • the invention relates to a flat key which has at least one incision groove on at least one of the two longitudinal edges of the key shank, wherein the incision milling comprises an inlet flank and an outlet flank, which are interconnected by connecting flanks and the positioning flank is formed by the connecting flank forming the base of the incision groove ,
  • Such flat terminals such as from the EP 1 746 226 A or the FR 2 896 817 A are known to serve for locking Zylinderschlössem, wherein the Einterrorismfräsungen are provided either on one or both longitudinal edges of the flat key.
  • the associated cylinder locks have a keyway in a known manner, in which the flat key can be inserted to the stop.
  • the core pins are slidably disposed as part of the two or more divided pin tumblers, the incision Milling the key must be so deep that the associated pitch of the core pin allows rotation of the cylinder core in the cylinder housing.
  • Schliesszylindem is since the late 19th century state of the art and requires no further explanation.
  • a flat key comprises a key shank whose two longitudinal edges lie in the insertion direction of the key. At least one of the two longitudinal edges has one or more incision grooves arranged one behind the other, wherein today usually five or six incision grooves are provided on a longitudinal edge. In the case of so-called reversible keys, both longitudinal edges carry the same sequence of incision cuts, so that the key can be inserted in a position rotated by 180 ° in each case.
  • Each incision groove has an inlet flank and an outlet flank. Both flanks are connected by a positioning edge, wherein this positioning edge forms the bottom of the incision milling and determines the positioning of the associated core pin of the cylinder lock.
  • Another object of such flat keys is to make the insertion behavior of the key in the key channel comfortable. To steep flanks of the cutting cuts cause poor insertion behavior and it even comes to a sticking of the key.
  • the angular position of the inlet flanks and outlet edges should be about 45 ° in order to maintain the other geometric conditions of such flat key can.
  • the incision milling must be designed so that the key only in a well-defined position allows the lock and avoids that the cylinder core can be twisted even before the key is fully inserted. Too low flanks can cause problems here.
  • the key according to the invention is characterized in that the inlet connecting flank located between the inlet flank and the positioning flank has a smaller radius than the outlet connecting flank lying between the positioning flank and the outlet flank.
  • an inlet connecting flank with a smaller radius and after the positioning flank an outlet connecting flank with one or more larger radii is provided. This ensures that even the inlet connecting flank has a radius that prevents tearing of the key material. Furthermore, an outlet connection flank is formed which, on the one hand, prevents tearing of the material due to one or more larger radii and, on the other hand, gently pushes out the spring-loaded cylinder core pin from the incision groove when the key is displaced.
  • FIGS. 1 to 3 show the side view of keys.
  • FIG. 1 shows a conventional key to represent the problem.
  • FIG. 2 shows a key of the type according to the invention in a first embodiment and the FIG. 3 such in a second embodiment.
  • the FIG. 4 shows the scheme for the construction of a cutting recess according to the invention and
  • FIG. 5 shows the movement of a Kemuxkopfes in a cutting cut.
  • the flat keys of the present type are usually punched out of a metal plate with a thickness of 2 to 3 mm, wherein initially a key blank is made, comprising the key shank 1 with the key tip 19 and the key handle 23.
  • the bowl blank still has unprocessed longitudinal edges 2, 3, as in FIG. 1 are drawn.
  • the incision Mills must be designed so that the key can be easily inserted into the keyway of the cylinder core and pulled out of this again, the strokes of the pin tumblers should be as smooth as possible.
  • the incision cuts must be accurate and defined both in depth and in the extension along the insertion direction 18 of the key, so that on the one hand the position of Stiftzurois is correct and on the other hand, the lock can only be locked in the fully inserted position of the key, if so the stop 24 of the key is present at the associated collar of the cylinder core.
  • FIGS. 2 and 3 show the side view of two keys according to the invention, in which each of the cutting grooves according to the scheme according to FIG. 4 is trained.
  • the incision milling thus comprises an inlet flank 9 and an outlet flank 10. These two flanks are inclined relative to the longitudinal edge 3 of the key by the two angles ⁇ and ⁇ , both angles being preferred 45 °.
  • the longitudinal edge 3 is only present if the key still does not carry any incision milling. By milling, this longitudinal edge 3 is at least milled away in the section of the cutting cut.
  • the orientation of the longitudinal edge 3 corresponds in any case to the insertion direction of the key, in FIG. 1 designated by the reference numeral 18.
  • the inlet edge 9 and outlet edge 10 are interconnected by connecting flanks 12, 13, wherein at the bottom of the incision milling as a further connecting edge still the positioning edge 11 is formed, which is just in the insertion direction.
  • This Positionierflanke 11 positions the spring-biased core pin of the associated pin tumbler.
  • the inlet connection flank 12 located between the inlet flank 9 and the positioning flank 11 has a smaller radius than the outlet connecting flank 13 located between the positioning flank 11 and the outlet flank 10
  • FIG. 4 preferred radii of the individual flank sections are shown. The centers are of course so according to the drawing down to lay down that the curve pieces with the drawn radii nestle in the overall curve.
  • the entrance joint flank has a radius equal to / less x when x is the variation depth difference 14.
  • the variation depth difference x is in FIG. 1 and results from the smallest possible variation depth difference between two depths of the incision cuts. Usually, this difference is about 0.5 mm. With a maximum cutting depth of 5 mm, there are thus 10 depths of variation at each slot cut.
  • the outlet connecting flank 13 has a larger radius, namely a radius of 3x or larger.
  • the outlet connection flank 13 consists of a first section 15 having a radius of about 3x, a second section 16 having a radius of about 5x and a third section 17 having a radius of about 4x.
  • the insertion behavior of the key is favorably influenced by the fact that the outlet connecting flank 13 is formed with a relatively large radius, so that the core pin of the cylinder lock is gently led out of the incision groove and is moved without hooks from the positioning edge 11 in the direction of the outlet edge 10 in order to insert the key in the key channel subsequently to be able to immerse again in the next incision milling.
  • FIG. 5 shows the process in a cutting recess 4 when it slides over a Kemlixkopf 21 over it.
  • the associated compression spring is designated by the reference numeral 25 and indicated only schematically, wherein also the intermediate housing pin is indicated only schematically.
  • FIG. 5 engages the Kemuxkopf 21 exactly on the positioning edge 11 and the core pin is in the uppermost position.
  • Kemstattkopf 21 runs according to the displacement of the key according to arrow 18 to the left initially against the outlet connection edge 13 and the Kemstattkopf is pressed out of the recess cut 4 against the force of the spring 25 due to the relatively large radii of the discharge edge.
  • the key according to Fig. 3 indicates in addition to the incision milled according to Fig. 2 a key tip 19, the stop edge, which leads to the first incision groove 4, is formed according to the outlet connection flank and outlet edge. This also facilitates the insertion of the key into the key channel.

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Description

Die Erfindung betrifft einen Flachschlüssel der an wenigstens einer der beiden Längskanten des Schlüsselschaftes wenigstens eine Einschnittfräsung aufweist, wobei die Einschnittfräsung eine Einlaufflanke und eine Auslaufflanke umfasst, die durch Verbindungsflanken miteinander verbunden sind und durch die, den Grund der Einschnittfräsung bildenden, Verbindungsflanke die Positionierflanke gebildet ist.The invention relates to a flat key which has at least one incision groove on at least one of the two longitudinal edges of the key shank, wherein the incision milling comprises an inlet flank and an outlet flank, which are interconnected by connecting flanks and the positioning flank is formed by the connecting flank forming the base of the incision groove ,

Derartige Flachschlüsse, wie z.B. aus der EP 1 746 226 A oder der FR 2 896 817 A bekannt sind, dienen zum Sperren von Zylinderschlössem, wobei die Einschnittfräsungen entweder an einer oder an beiden Längskanten des Flachschlüssels vorgesehen sind. Die zugehörigen Zylinderschlösser weisen in bekannter Weise einen Schlüsselkanal auf, in den der Flachschlüssel bis zum Anschlag eingeschoben werden kann. Im Zylinderkern des Zylinderschlosses sind die Kernstifte als Bestandteil der zwei- oder mehrgeteilten Stiftzuhaltungen verschieblich angeordnet, wobei die Einschnittfräsungen des Schlüssels so tief sein müssen, dass die zugehörige Teilung des Kernstiftes ein Verdrehen des Zylinderkerns im Zylindergehäuse zulasst. Die Funktion von Schliesszylindem ist seit Ende des 19. Jahrhunderts Stand der Technik und bedarf keiner weiteren Erläuterung.Such flat terminals, such as from the EP 1 746 226 A or the FR 2 896 817 A are known to serve for locking Zylinderschlössem, wherein the Einschnittfräsungen are provided either on one or both longitudinal edges of the flat key. The associated cylinder locks have a keyway in a known manner, in which the flat key can be inserted to the stop. In the cylinder core of the cylinder lock, the core pins are slidably disposed as part of the two or more divided pin tumblers, the incision Milling the key must be so deep that the associated pitch of the core pin allows rotation of the cylinder core in the cylinder housing. The function of Schliesszylindem is since the late 19th century state of the art and requires no further explanation.

Ein Flachschlüssel umfasst einen Schlüsselschaft, dessen beide Längskanten in Einschubrichtung des Schlüssels liegen. Zumindest eine der beiden Längskanten weist einer oder mehrere hintereinander angeordnete Einschnittfräsungen auf, wobei heute zumeist fünf oder sechs Einschnittfräsungen an einer Längskante vorgesehen sind. Im Falle von sogenannten Wendeschlüsseln tragen beide Längskanten die gleiche Aufeinanderfolge von Einschnittfräsungen, damit der Schlüssel in jeweils 180° verdrehter Lage eingeschoben werden kann.A flat key comprises a key shank whose two longitudinal edges lie in the insertion direction of the key. At least one of the two longitudinal edges has one or more incision grooves arranged one behind the other, wherein today usually five or six incision grooves are provided on a longitudinal edge. In the case of so-called reversible keys, both longitudinal edges carry the same sequence of incision cuts, so that the key can be inserted in a position rotated by 180 ° in each case.

Es versteht sich von selbst, dass die Längskanten bei Anordnung von Einschnittfräsungen unterbrochen sind und bei durchgehender Anordnung von Einschnittfräsungen nur in einem kleinen Teilbereich stehen bleiben.It goes without saying that the longitudinal edges are interrupted in the arrangement of incision cuts and remain in a continuous arrangement of incision milled only in a small portion.

Jede Einschnittfräsung verfügt über eine Einlaufflanke und eine Auslaufflanke. Beide Flanken sind durch eine Positionierflanke verbunden, wobei diese Positionierflanke den Grund der Einschnittfräsung bildet und für den zugehörigen Kernstift des Zylinderschlosses die Positionierung bestimmt.Each incision groove has an inlet flank and an outlet flank. Both flanks are connected by a positioning edge, wherein this positioning edge forms the bottom of the incision milling and determines the positioning of the associated core pin of the cylinder lock.

Ein schon länger bekanntes Problem bei derartigen Schlüsseln liegt darin, dass das Schlüsselmaterial an jenen Stellen leicht einreißt und sogar abbrechen kann, an denen die Einschnittfräsungen tief ausgebildet sind. Dieser Nachteil wird dadurch hervorgerufen, dass scharfkantige Fräskanten oder kleine Radien vorgesehen werden, wenn die Fräsung durchgeführt wird. Dieses Problem soll gelöst werden.A long-standing problem with such keys is that the key material easily tears and even breaks at those locations where the sipe cuts are deeply formed. This disadvantage is caused by the fact that sharp-edged Fräskanten or small radii are provided when the milling is performed. This problem should be solved.

Eine weitere Aufgabe bei derartigen Flachschlüsseln liegt darin, das Einschubverhalten des Schlüssels in den Schlüsselkanal komfortabel auszugestalten. Zu steile Flanken der Einschnittfräsungen bewirken ein schlechtes Einschubverhalten und es kommt sogar zu einem Steckenbleiben des Schlüssels. Die Winkelstellung der Einlaufflanken und Auslaufflanken soll etwa 45° betragen, um die sonstigen geometrischen Verhältnisse derartiger Flachschlüssel beibehalten zu können. Im Übrigen müssen die Einschnittfräsungen so ausgebildet sein, dass der Schlüssel nur in einer genau definierten Lage die Sperre zulässt und vermeidet, dass der Zylinderkern verdreht werden kann, noch bevor der Schlüssel zur Gänze eingeschoben ist. Zu flache Flanken können hierbei Probleme machen.Another object of such flat keys is to make the insertion behavior of the key in the key channel comfortable. To steep flanks of the cutting cuts cause poor insertion behavior and it even comes to a sticking of the key. The angular position of the inlet flanks and outlet edges should be about 45 ° in order to maintain the other geometric conditions of such flat key can. Incidentally, the incision milling must be designed so that the key only in a well-defined position allows the lock and avoids that the cylinder core can be twisted even before the key is fully inserted. Too low flanks can cause problems here.

Gemäß Erfindung sollen alle diese Nachteile vermieden werden.According to the invention, all these disadvantages are to be avoided.

Der erfindungsgemäße Schlüssel ist dadurch gekennzeichnet, dass die zwischen der Einlaufflanke und der Positionierflanke liegende Einlaufverbindungsflanke einen kleineren Radius aufweist, als die zwischen der Positionierungsflanke und der Auslaufflanke liegende Auslaufverbindungsflanke.The key according to the invention is characterized in that the inlet connecting flank located between the inlet flank and the positioning flank has a smaller radius than the outlet connecting flank lying between the positioning flank and the outlet flank.

Weitere vorteilhafte Merkmale sind den Ansprüchen, der Beschreibung und den Zeichnungen zu entnehmen.Further advantageous features are described in the claims, the description and the drawings.

Gemäß Erfindung wird also eine Einlaufverbindungsflanke mit einem kleineren Radius und nach der Positionierflanke eine Auslaufverbindungsflanke mit einem oder mehreren größeren Radien vorgesehen. Damit ist sichergestellt, dass schon die Einlaufverbindungsflanke über einen Radius verfügt, der ein Einreißen des Schlüsselmaterials verhindert. Weiters wird eine Auslaufverbindungsflanke gebildet, die zufolge eines oder mehrerer größeren Radien einerseits das Einreißen des Materials verhindert und andererseits den federbelasteten Zylinderkemstift weich aus der Einschnittfräsung herausschiebt, wenn der Schlüssel verschoben wird.According to the invention, therefore, an inlet connecting flank with a smaller radius and after the positioning flank an outlet connecting flank with one or more larger radii is provided. This ensures that even the inlet connecting flank has a radius that prevents tearing of the key material. Furthermore, an outlet connection flank is formed which, on the one hand, prevents tearing of the material due to one or more larger radii and, on the other hand, gently pushes out the spring-loaded cylinder core pin from the incision groove when the key is displaced.

Nachfolgend wird sowohl der Stand der Technik als auch die Erfindung anhand von zwei Ausführungsbeispielen näher beschrieben.In the following, both the prior art and the invention will be described in more detail with reference to two exemplary embodiments.

Die Figuren 1 bis 3 zeigen die Seitenansicht von Schlüsseln. Figur 1 zeigt einen herkömmlichen Schlüssel zur Darstellung des Problems. Figur 2 zeigt einen Schlüssel der erfindungsgemäßen Art in einer ersten Ausführungsvariante und die Figur 3 einen solchen in einer zweiten Ausführungsvariante. Die Figur 4 zeigt die Systematik für die Konstruktion einer erfindungsgemäßen Einschnittfräsung und Figur 5 zeigt die Bewegung eines Kemstiftkopfes in einer Einschnittfräsung.The FIGS. 1 to 3 show the side view of keys. FIG. 1 shows a conventional key to represent the problem. FIG. 2 shows a key of the type according to the invention in a first embodiment and the FIG. 3 such in a second embodiment. The FIG. 4 shows the scheme for the construction of a cutting recess according to the invention and FIG. 5 shows the movement of a Kemstiftkopfes in a cutting cut.

Die Flachschlüssel der vorliegenden Art sind üblicherweise aus einer Metallplatte mit einer Dicke von 2 bis 3 mm ausgestanzt, wobei vorerst ein Schlüsselrohling hergestellt wird, der den Schlüsselschaft 1 mit der Schlüsselspitze 19 und den Schlüsselgriff 23 umfasst. Der Schüsselrohling verfügt noch über unbearbeitete Längskanten 2, 3, wie sie in Figur 1 eingezeichnet sind. Gemäß Figur 1 weist der Schlüsselschaft entlang einer der Längskanten 3 die Einschnittfräsungen 4 bis 8 auf, die dazu dienen, in seit langem bekannter Weise zwei oder mehrgeteilte Zuhaltungsstifte des zugehörigen Zylinderschlosses in eine solche Position zu bringen, dass der Zylinderkern im Zylindergehäuse gedreht und damit das Schloss betätigt werden kann. Die Einschnittfräsungen müssen dabei so ausgestaltet werden, dass der Schlüssel leicht in den Schlüsselkanal des Zylinderkerns eingeschoben und aus diesem wieder herausgezogen werden kann, wobei die Hubbewegungen der Stiftzuhaltungen möglichst leichtgängig sein sollen. Die Einschnittfräsungen müssen sowohl in der Tiefe als auch in der Erstreckung längs der Einschubrichtung 18 des Schlüssels exakt und definiert sein, sodass einerseits die Stellung der Stiftzuhaltung richtig ist und zum Anderen das Schloss erst in der voll eingeschobenen Stellung des Schlüssels gesperrt werden kann, wenn also der Anschlag 24 des Schlüssels am zugehörigen Bund des Zylinderkerns ansteht.The flat keys of the present type are usually punched out of a metal plate with a thickness of 2 to 3 mm, wherein initially a key blank is made, comprising the key shank 1 with the key tip 19 and the key handle 23. The bowl blank still has unprocessed longitudinal edges 2, 3, as in FIG. 1 are drawn. According to FIG. 1 the key shank along one of the longitudinal edges 3, the incision Mills 4 to 8, which serve to bring in a long known manner two or more divided tumbler pins of the associated cylinder lock in such a position that the cylinder core is rotated in the cylinder housing and thus the lock operated can. The incision Mills must be designed so that the key can be easily inserted into the keyway of the cylinder core and pulled out of this again, the strokes of the pin tumblers should be as smooth as possible. The incision cuts must be accurate and defined both in depth and in the extension along the insertion direction 18 of the key, so that on the one hand the position of Stiftzuhaltung is correct and on the other hand, the lock can only be locked in the fully inserted position of the key, if so the stop 24 of the key is present at the associated collar of the cylinder core.

Die Figuren 2 und 3 zeigen die Seitenansicht von zwei erfindungsgemäßen Schlüsseln, bei denen jede der Einschnittfräsungen nach dem Schema gemäß Figur 4 ausgebildet ist. Die Einschnittfräsung umfasst demnach eine Einlaufflanke 9 und eine Auslaufflanke 10. Diese beiden Flanken sind gegenüber der Längskante 3 des Schlüssels um die beiden Winkel α und β geneigt, wobei beide Winkel bevorzugt bei 45° liegen. Die Längskante 3 ist selbstverständlich nur dann vorhanden, wenn der Schlüssel noch keine Einschnittfräsung trägt. Durch das Fräsen wird zumindest im Abschnitt der Einschnittfräsung diese Längskante 3 weggefräst. Die Ausrichtung der Längskante 3 entspricht jedenfalls der Einschubrichtung des Schlüssels, die in Figur 1 mit dem Bezugzeichen 18 bezeichnet ist.The FIGS. 2 and 3 show the side view of two keys according to the invention, in which each of the cutting grooves according to the scheme according to FIG. 4 is trained. The incision milling thus comprises an inlet flank 9 and an outlet flank 10. These two flanks are inclined relative to the longitudinal edge 3 of the key by the two angles α and β, both angles being preferred 45 °. Of course, the longitudinal edge 3 is only present if the key still does not carry any incision milling. By milling, this longitudinal edge 3 is at least milled away in the section of the cutting cut. The orientation of the longitudinal edge 3 corresponds in any case to the insertion direction of the key, in FIG. 1 designated by the reference numeral 18.

Die Einlaufflanke 9 und Auslaufflanke 10 sind durch Verbindungsflanken 12, 13 miteinander verbunden, wobei am Grund der Einschnittfräsung als weitere Verbindungsflanke noch die Positionierflanke 11 ausgebildet ist, die gerade in Einschubrichtung steht. Diese Positionierflanke 11 positioniert den unter Federdruck vorgespannten Kernstift der zugehörigen Stiftzuhaltung.The inlet edge 9 and outlet edge 10 are interconnected by connecting flanks 12, 13, wherein at the bottom of the incision milling as a further connecting edge still the positioning edge 11 is formed, which is just in the insertion direction. This Positionierflanke 11 positions the spring-biased core pin of the associated pin tumbler.

Gemäß vorliegender Erfindung weist die zwischen der Einlaufflanke 9 und der Positionierflanke 11 liegende Einlaufverbindungsflanke 12 einen kleineren Radius auf, als die zwischen der Positionierflanke 11 und der Auslaufflanke 10 liegende Auslaufverbindungsflanke 13. In Figur 4 sind bevorzugte Radien der einzelnen Flankenabschnitte eingezeichnet. Die Mittelpunkte sind selbstverständlich so entsprechend in der Zeichnung nach unten zu verlegen, dass die Kurvenstücke mit den eingezeichneten Radien sich in die Gesamtkurve anschmiegen.According to the present invention, the inlet connection flank 12 located between the inlet flank 9 and the positioning flank 11 has a smaller radius than the outlet connecting flank 13 located between the positioning flank 11 and the outlet flank 10 FIG. 4 preferred radii of the individual flank sections are shown. The centers are of course so according to the drawing down to lay down that the curve pieces with the drawn radii nestle in the overall curve.

Die Einlaufverbindungsflanke hat einen Radius von gleich/kleiner x, wenn x die Variationstiefendifferenz 14 ist. Die Variationstiefendifferenz x ist in Figur 1 eingezeichnet und ergibt sich aus der kleinstmöglichen Variationstiefendifferenz zwischen zwei Tiefen der Einschnittfräsungen. Üblicherweise liegt diese Differenz bei etwa 0,5 mm. Bei einer maximalen Einschnitttiefe von 5 mm haben somit 10 Variationstiefen an jeder Einschnittfräsung Platz.The entrance joint flank has a radius equal to / less x when x is the variation depth difference 14. The variation depth difference x is in FIG. 1 and results from the smallest possible variation depth difference between two depths of the incision cuts. Usually, this difference is about 0.5 mm. With a maximum cutting depth of 5 mm, there are thus 10 depths of variation at each slot cut.

Gemäß Figur 4 hat die Auslaufverbindungsflanke 13 einen größeren Radius, nämlich einen Radius von 3x oder größer. In der dargestellten besonders bevorzugten Ausführung besteht die Auslaufverbindungsflanke 13 aus einem ersten Abschnitt 15 mit einem Radius von etwa 3x, einem zweiten Abschnitt 16 mit einem Radius von etwa 5x und einem dritten Abschnitt 17 mit einem Radius von etwa 4x.According to FIG. 4 the outlet connecting flank 13 has a larger radius, namely a radius of 3x or larger. In the illustrated particularly preferred embodiment, the outlet connection flank 13 consists of a first section 15 having a radius of about 3x, a second section 16 having a radius of about 5x and a third section 17 having a radius of about 4x.

Diese gewählten Fräsradien ermöglichen es, die sonst üblichen scharfen Kanten in der Einschnittfräsung zu vermeiden, sodass sich das Problem der Materialschwächung nicht stellt. Andererseits wird das Einschubverhalten des Schlüssels dadurch günstig beeinflusst, dass die Auslaufverbindungsflanke 13 mit einem relativ großen Radius ausgebildet ist, sodass der Kernstift des Zylinderschlosses sanft aus der Einschnittfräsung herausgeführt wird und ohne Haken von der Positionierflanke 11 in Richtung Auslaufflanke 10 bewegt wird, um beim Einschieben des Schlüssels in den Schlüsselkanal nachfolgend wieder in die nächste Einschnittfräsung eintauchen zu können.These selected milling radii make it possible to avoid the otherwise common sharp edges in the incision milling, so that the problem of material weakening does not stop. On the other hand, the insertion behavior of the key is favorably influenced by the fact that the outlet connecting flank 13 is formed with a relatively large radius, so that the core pin of the cylinder lock is gently led out of the incision groove and is moved without hooks from the positioning edge 11 in the direction of the outlet edge 10 in order to insert the key in the key channel subsequently to be able to immerse again in the next incision milling.

Figur 5 zeigt den Ablauf in einer Einschnittfräsung 4, wenn sie über einen Kemstiftkopf 21 darüber gleitet. Die zugehörige Druckfeder ist mit dem Bezugszeichen 25 bezeichnet und nur schematisch angedeutet, wobei auch der dazwischenliegende Gehäusestift nur schematisch angedeutet ist. FIG. 5 shows the process in a cutting recess 4 when it slides over a Kemstiftkopf 21 over it. The associated compression spring is designated by the reference numeral 25 and indicated only schematically, wherein also the intermediate housing pin is indicated only schematically.

In der Stellung a) der Figur 5 greift der Kemstiftkopf 21 genau an der Positionierflanke 11 an und der Kernstift liegt in oberster Position.In position a) the FIG. 5 engages the Kemstiftkopf 21 exactly on the positioning edge 11 and the core pin is in the uppermost position.

In der Stellung b) läuft der Kemstiftkopf 21 zufolge des Verschiebens des Schlüssels gemäß Pfeil 18 nach links vorerst gegen die Auslaufverbindungsflanke 13 und der Kemstiftkopf wird zufolge der relativ großen Radien der Auslaufflanke 13 sanft aus der Einschnittfräsung 4 gegen die Kraft der Feder 25 herausgedrückt.In the position b) Kemstiftkopf 21 runs according to the displacement of the key according to arrow 18 to the left initially against the outlet connection edge 13 and the Kemstiftkopf is pressed out of the recess cut 4 against the force of the spring 25 due to the relatively large radii of the discharge edge.

Der Schlüssel gemäß Fig. 3 weist zusätzlich zu den Einschnittfräsungen gemäß Fig. 2 eine Schlüsselspitze 19 auf, deren Anschlagflanke, die zur ersten Einschnittfräsung 4 führt, entsprechend der Auslaufverbindungsflanke und Auslaufflanke ausgebildet ist. Auch dadurch wird das Einschieben des Schlüssels in den Schlüsselkanal erleichtert.The key according to Fig. 3 indicates in addition to the incision milled according to Fig. 2 a key tip 19, the stop edge, which leads to the first incision groove 4, is formed according to the outlet connection flank and outlet edge. This also facilitates the insertion of the key into the key channel.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Schlüsselschaftkey shaft
22
Längskante (Rücken)Longitudinal edge (back)
33
Längskante (Bart)Long edge (beard)
44
EinschnittfräsungEinschnittfräsung
55
EinschnittfräsungEinschnittfräsung
66
EinschnittfräsungEinschnittfräsung
77
EinschnittfräsungEinschnittfräsung
88th
EinschnittfräsungEinschnittfräsung
99
Einlaufflankeentry profile
1010
Auslaufflankeexit profile
1111
PositionierflankePositionierflanke
1212
EinlaufverbindungsflankeInlet connection edge
1313
AuslaufverbindungsflankeOutlet connection edge
1414
VariationstiefendifferenzVariation depth difference
1515
erster Abschnittfirst section
1616
zweiter Abschnittsecond part
1717
dritter Abschnittthird section
1818
Einschubrichtung des SchlüsselsInsertion direction of the key
1919
Schlüsselspitzekey tip
2020
Anschlagflankestop flank
2121
KemstiftkopfKemstiftkopf
2222
RissCrack
2323
Schlüsselgriffkey grip
2424
Anschlagattack
2525
Druckfedercompression spring
2626
Gehäusestifthousing pin

Claims (11)

  1. Flat key which comprises, on at least one of the two longitudinal edges (2, 3) of the key shank (1), at least one milled incision (4 - 8), the milled incision having an entry flank (9) and an exit flank (10) which are joined together by connecting flanks (12, 13) and the positioning flank (11) is formed by the connecting flank that forms the base of the milled incision, characterised in that the entry connecting flank (12) located between the entry flank (9) and the positioning flank (11) has a smaller radius than the exit connecting flank (13) located between the positioning flank (11) and the exit flank (10).
  2. Flat key according to claim 1, characterised in that the entry and exit flanks (9, 10) are embodied to be straight.
  3. Flat key according to claim 1 or 2, characterised in that with a variable depth difference (14) of x, the entry connecting flank (12) has a radius equal to or less than x.
  4. Flat key according to claim 3, characterised in that the exit connecting flank (13) has a radius of 3x or more.
  5. Flat key according to one of claims 3 to 4, characterised in that the exit connecting flank (13) is made up of a first portion (15) having a radius of about 3x, a second portion (16) having a radius of about 5x and a third portion (17) having a radius of about 4x.
  6. Flat key according to one of claims 1 to 5, characterised in that the positioning flank (11) for the abutment of the head of the core pin (21), when the key is inserted in the key channel of the associated locking cylinder, is straight and parallel to the direction of insertion (18) of the key.
  7. Flat key according to one of claims 1 to 6, characterised in that the entry and exit flanks (9, 10) are arranged at an angle (α, β) of about 45° to the direction of insertion (18) and/or longitudinal edge (2, 3) of the key.
  8. Flat key according to one of claims 1 to 7, characterised in that the tip (19) of the key has a stop flank (20) which is formed by the exit connecting flank (13) and the exit flank (10).
  9. Flat key according to one of claims 1 to 8, characterised in that it comprises five or six milled incisions (4-8) on one or both longitudinal edges (2, 3) of the key shank (1) which are embodied according to claims 1 to 7.
  10. Flat key according to one of claims 3 to 5 and optionally 6 to 9, characterised in that x is about 0.5 mm.
  11. Flat key according to one of claims 1 to 10, characterised in that a maximum of 10 variable depth differences (14), each of about 0.5 mm, are available.
EP09009005A 2008-07-15 2009-07-10 Flat key Not-in-force EP2146030B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09009005T PL2146030T3 (en) 2008-07-15 2009-07-10 Flat key

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0109708A AT506700B1 (en) 2008-07-15 2008-07-15 FLAT KEY

Publications (2)

Publication Number Publication Date
EP2146030A1 EP2146030A1 (en) 2010-01-20
EP2146030B1 true EP2146030B1 (en) 2011-11-30

Family

ID=41170911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09009005A Not-in-force EP2146030B1 (en) 2008-07-15 2009-07-10 Flat key

Country Status (4)

Country Link
EP (1) EP2146030B1 (en)
AT (2) AT506700B1 (en)
DK (1) DK2146030T3 (en)
PL (1) PL2146030T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3085860A1 (en) 2015-04-22 2016-10-26 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Closing device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008040823A1 (en) * 2008-07-29 2010-02-04 Aug. Winkhaus Gmbh & Co. Kg Key for a lock cylinder and blank for such a key
DE102009025993B3 (en) * 2009-06-18 2011-01-20 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschloßfabrik Locking device and key for a locking device
US10957355B2 (en) 2018-02-28 2021-03-23 International Business Machines Corporation Authenticating digital recordings
DE102019201995A1 (en) * 2019-02-14 2020-08-20 Aug. Winkhaus Gmbh & Co. Kg KEYS FOR A LOCKING CYLINDER
DE102019201997A1 (en) * 2019-02-14 2020-08-20 Aug. Winkhaus Gmbh & Co. Kg LOCKING DEVICE WITH A KEY AND A LOCKING CYLINDER

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29818143U1 (en) * 1998-10-10 2000-02-17 Bks Gmbh Security key
DE102004013522A1 (en) * 2004-03-19 2005-10-06 Aug. Winkhaus Gmbh & Co. Kg key
DE102005000090A1 (en) * 2005-07-19 2007-01-25 Aug. Winkhaus Gmbh & Co. Kg Key and lock cylinder for a key
AT9157U1 (en) * 2006-02-02 2007-05-15 Evva Werke CYLINDER LOCK AND FLAT KEY

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3085860A1 (en) 2015-04-22 2016-10-26 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Closing device
DE102015106198A1 (en) 2015-04-22 2016-10-27 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik closing device

Also Published As

Publication number Publication date
PL2146030T3 (en) 2012-05-31
DK2146030T3 (en) 2012-03-26
ATE535666T1 (en) 2011-12-15
EP2146030A1 (en) 2010-01-20
AT506700A4 (en) 2009-11-15
AT506700B1 (en) 2009-11-15

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