EP2792823B1 - Locking device with a locking cylinder - Google Patents

Locking device with a locking cylinder Download PDF

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Publication number
EP2792823B1
EP2792823B1 EP14161741.5A EP14161741A EP2792823B1 EP 2792823 B1 EP2792823 B1 EP 2792823B1 EP 14161741 A EP14161741 A EP 14161741A EP 2792823 B1 EP2792823 B1 EP 2792823B1
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EP
European Patent Office
Prior art keywords
key
side wall
locking device
core
keyway
Prior art date
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Application number
EP14161741.5A
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German (de)
French (fr)
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EP2792823A2 (en
EP2792823A3 (en
Inventor
Michael Reine
Andreas Baumann
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.)
C Ed Schulte Zylinderschlossfabrik GmbH
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C Ed Schulte Zylinderschlossfabrik GmbH
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Application filed by C Ed Schulte Zylinderschlossfabrik GmbH filed Critical C Ed Schulte Zylinderschlossfabrik GmbH
Priority to PL14161741T priority Critical patent/PL2792823T3/en
Publication of EP2792823A2 publication Critical patent/EP2792823A2/en
Publication of EP2792823A3 publication Critical patent/EP2792823A3/en
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Publication of EP2792823B1 publication Critical patent/EP2792823B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00Keys; Accessories therefor
    • E05B19/0017Key profiles
    • E05B19/0023Key profiles characterized by variation of the contact surface between the key and the tumbler pins or plates
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/08Key guides; Key pins ; Keyholes; Keyhole finders

Definitions

  • the invention relates to a locking device with a lock cylinder and a matching key according to the preamble of claim 1.
  • a closure device is of the DE 25 46 551 A1 described.
  • the cylinder core has two opposite sides and a substantially transverse thereto narrow side. At one of the narrow side associated core hole inserted a core pin, the tip of which projects obliquely into the keyway and abuts there against a beveled scanning edge of a key.
  • the EP 1251223A1 describes a lock cylinder, in the key channel einsteckt a key. Through a core hole of the narrow side protrudes a portion of a core pin into the keyway, where it scans a scanning edge of the key.
  • the key has laterally projecting, obliquely extending flanks having ribs which engage in associated grooves of the keyway narrow side wall. In a parallel recess to the keyway inserted as a pull pin complementary Zuroissw having a Beaufschlagungsflanke which engages a Quiripp.
  • the EP 1837465 A2 describes a key in which the scanned by the tumbler scan edge extending obliquely to the key center plane.
  • a locking device with a lock cylinder a matching key also describes the DE 10 2005 000 092 A1 ,
  • the key has two facing broad sides which form grooves into which ribs of the side walls of the keyway protrude.
  • the key-chest is formed by a sloping side of a bridge.
  • the scanned by a tumbler pin inclined web side has locking recesses into which the tip of the tumbler pin can engage.
  • a locking device with a lock cylinder and a matching key describes the EP 1503 010 B1 ,
  • the lock cylinder has a cylinder housing with a cavity in which a cylinder core is inserted.
  • the cylinder core has a keyway having two opposing side walls. The side walls have tread ribs that protrude into the keyway.
  • the matching key has profile grooves and can be plugged into the keyway.
  • the key has a sampling stage that can be scanned by at least one tumbler pin. If the key is not inserted, the rotatability of the cylinder core is blocked by the tumbler pins.
  • the scanning stage runs at a 90 ° angle to the direction of force, with which the core pin is acted upon by the tumbler spring.
  • the sample stage is followed by an extension, which protrudes into a space between the side wall of the key channel and core pin.
  • the scanning stage is formed here by a guideway which is formed by a side edge of a rib which extends along the broad side of the key shank.
  • the DE 10 2005 009 153 A1 describes a lock cylinder with matching key and in the keyway projecting tumbler pins.
  • the tumbler pins scan a sampling point of the key shank at a point of contact.
  • the contact point forms a surface section which extends transversely to the direction of displacement of the tumbler pin.
  • the US Pat. No. 7,963,135 B1 describes a locking device with a lock cylinder and a matching key.
  • a displaceably mounted in the cylinder core core pin has a sloping contact edge.
  • the DE 103 24 205 B3 describes a lock cylinder with key, wherein the key protrudes beyond the QuibreitwaitwithType Structure rib.
  • a tumbler pin which scans this laterally projecting rib.
  • a key which has a sampling stage that can be scanned by a plurality of core pins.
  • the scanning stage is also formed here by a guideway, adjacent to which extends an extension of the key shank, which projects up to a chest or a back of the key.
  • the invention has for its object to further develop the use of a lock cylinder and a matching key locking device according to the generic term nutzsvorteilhaft.
  • a surface section of the scanning stage runs at an angle alpha at an angle to the direction of movement of the tumbler pin.
  • This surface portion forms the contact point at which the particular rounded tip of the core pin scans the scanning stage.
  • the angle can be between 60 ° and 95 °. It is preferably between 70 ° and 80 °.
  • the scanning end is now not at a transverse to the direction of force application scanning stage.
  • the sampling stage has such a tendency that the force acting on the contact point spring force of the tumbler spring unfolds a force component which acts on a broad side of the key shaft in the direction of its facing broad side wall of the keyway.
  • the corresponding counterforce acts on the tumbler pin in the direction the opposite broad side wall of the keyway.
  • the force component and its counterforce component thus extends transversely to the insertion direction of the key or key channel extension direction in the direction of a wall of the key channel.
  • This wall forms a trough, rests in the section of the tumbler pin.
  • the trough is formed by a rib of the broad side wall of the keyway.
  • An extension of the key shank has such a material thickness that it captivates the tumbler pin in the recess in a space between the tumbler pin and the first side wall.
  • the scanning end of the tumbler pin can be formed by a curve.
  • the tumbler pin may have an enlarged diameter portion which rests in a correspondingly large core bore of the cylinder core.
  • the ribs engage in corresponding profile grooves of the broad sides of the key shank.
  • the key shank is - based on a key longitudinal axis - designed mirror-symmetrical, so it is a turn-flat key.
  • Both key wide sides form a guideway that forms sensing stages for multiple core pens.
  • the scanning stage may be formed by a chamfer of the guideway.
  • the chamfer may in particular extend undulating over the length of the key shank.
  • the guideway may have a small angle of inclination relative to the longitudinal axis of the key shank at the key tip. Distanced from the key tip, the guideway may transition into a portion which is inclined at a greater angle to the key longitudinal axis.
  • the end face of the core pin which abuts against the guide track or the Abtasttre, is preferably rounded so that it rests against an inclined portion of the guide pins in point contact.
  • the guideway may begin in the key tip with an orientation that is parallel to the key elongation. It is a tangent of a radius that immediately adjoins the tip.
  • the guideway may then initially extend along a circular arc with a radius of approximately 1.5 mm, starting from the tip.
  • the guideway may then transition into a rectilinear section having an angle of about 35 ° to the key longitudinal center axis.
  • the rectilinear section may be followed by a slight curvature, after which the guideway may again pass into a rectilinear section, which may be inclined at an angle of 45 ° to the key longitudinal axis.
  • the subsequent rounding can be the first wave mountain of the wave-shaped Form guideway.
  • the two flanks of the wave mountain can have an angle of about 90 ° to each other.
  • the keyway has two substantially parallel to each other extending broad side surfaces, each of which ribs protrude into the keyway and grooves are arranged between the ribs.
  • a narrow side of the keyway is formed by a gap opening of the cylinder core and thus closed by the cavity wall of the housing bore.
  • the other narrow side wall of the keyway has the bore through which a portion of the core pin projects into the keyway. This bore adjacent to one of the two broad side walls, so that the core pin portion can come into abutting contact with the broad side wall when acting on the above-mentioned transverse force.
  • the tumbler pin is spaced from the opposite broad side wall and in particular from the apex lines of the ribs of the opposite broad side wall.
  • the bore of the narrow side wall is also spaced from this broad side wall.
  • the locking device has a lock cylinder with a cylinder housing 1, in which a key 20 is inserted.
  • the cylinder housing 1 has a cavity 12 with a wall running along a circular outline, in which a cylindrical cylinder core 2 is inserted.
  • the cylinder core 2 has a recess extending in the axial direction of the cylinder core 2, which forms a key channel 3 into which the key shank 21 of the key 20 can be inserted.
  • the keyway 3 has two opposite side walls 7, 8, of which profile ribs 15 protrude into the keyway.
  • the broad sides 23, 24 of the key form profile grooves into which the profile ribs 15 can enter.
  • the keyway 3 is open to the jacket wall of the cylinder core 2. It is bounded from this side by the wall of the cylinder core 2 receiving cavity 12.
  • the opposite side of this opening narrow side of the keyway 3 has a plurality of core holes 11.
  • a core pin 4 which has a portion with a large diameter and a portion 13 with a smaller diameter.
  • the smaller diameter portion 13 penetrates a bore portion 17 with a smaller diameter and protrudes into the keyway 3 inside.
  • the free end of the protruding into the keyway 3 portion 13 of the tumbler pin 4 has a rounded Abtastende 9.
  • the sampling end 9 is applied to a sampling stage 22 of the key 20 at.
  • the distance of the scanning stage 22 from the breast 25 of the key shank 21 defines the extent to which the core pin 4 can dip into the core bore 11.
  • the matching key leaves the core pin 4 so far immersed in the core hole 11 that the sampling end 9 opposite end of the core pin 4 is located in the interface between the cylinder core 2 and housing bore 12, so that the cylinder core 2 can be rotated.
  • a flange portion of the cylinder housing 1 forms a housing bore 16 which is aligned with the core bore 11.
  • a tumbler spring 6 is supported at the bottom of the housing bore 16 and acts on a housing pin 5 in the direction of the key channel 3.
  • the core pin 4 In front of the keyway 3 facing end face of the housing pin 5 is the core pin 4, thus by means of tumbler 6 in the direction of the sampling stage 22nd is charged.
  • the key secret is defined by the core pins 4 stuck in the core bores 11.
  • the immersion depth of the core pins 4 in the keyway 8 is defined by the axial length of the reduced diameter portion 13 of the tumbler pin 4. These sections may have a uniform length for all tumbler pins 4.
  • the diameter-enlarged portion, which substantially fills the cross-section of the core bore 11, may have an individual axial length.
  • the FIG. 3 illustrated core pin 4 has a shorter length than that in the FIG. 5 illustrated core pin. Accordingly, the must in the FIG. 5 illustrated Kernrich 4 deeper into the keyway 8 dive, as in the FIG. 3 illustrated core pin 4 to allow rotation of the cylinder core 2 in the housing cavity, since this must be the parting line between the housing pin 5 and core pin 4 in the rotational surface of the cylinder core 2.
  • the illustrated key is a reversible flat key. He has a key longitudinal axis around which the in FIG. 7 cross-sectional profile shown is mirror-symmetrical.
  • the key shank 21 has two substantially parallel extending, provided with grooves and ribs broad sides 23, 24 and two narrow sides, which are formed by a key-chest 25 and a key back 29.
  • a wavy guideway 30 is provided, which has a slight inclination with respect to the longitudinal axis of the key shank in the region of the key tip 28.
  • the inclination angle increases at a distance from the key tip 28.
  • the guide track 30 has a portion which is highly inclined.
  • the wave troughs 30 'of the guideway 30 form five sampling stages 22, which are scanned by the respective rounded sampling end 9 of the core pins 4.
  • the guide track 30 is adjoined by a wall surface 27, which runs parallel to the broad side plane of the key shank 21.
  • the wall surface 27 is formed by an extension 26 whose outer edge forms the breast 25 or the back 29.
  • the guideway 30 has a slope which is in the FIG. 3 is marked with the angle ⁇ and is about 75 °.
  • the inclination is created by the use of a corresponding profile cutter.
  • the slope of the guideway 30 is formed by a chamfer.
  • the rounded end face of the scanning end 9 enters into a punctiform contact with the scanning stage 22.
  • F the force direction in which the tumbler spring 6 acts on the core pin 4 against the sampling stage 22.
  • the normal component N extending in relation to the extension direction of the scanning stage 22 has an angle ⁇ with respect to the direction of force F.
  • a force component K is formed which acts on the broadside surface 23 in the direction of the keyway wall 7. This has the consequence that the wall surface 27 is slightly spaced from the section 13 of the core pin 4.
  • the counterforce K 'directed counter to the force component K acts on the section 13 of the tumbler pin 4 in the direction of the keyway wall 8.
  • the keyway wall 8 has ribs 15. At least one of the ribs 15 forms a trough 14, in which the portion 13 of the tumbler pin 4 rests.
  • the guideway 30 runs in the region of the key tip 28 with the same pitch, as is a subsequent section 30 '.
  • the guideway 30 in the area of the key tip 28 initially runs parallel to the extension direction of the key, that is to say to the key longitudinal axis.
  • This area may be the portion of a round which may have a radius of about 1.5 mm. This rounding could extend to the rectilinear section 30 '.
  • This section 30 ' can be like that in the FIG. 8 illustrated embodiment have an angle of 35 ° relative to the key longitudinal axis. In the in the FIG.
  • these sections have an identical inclination, but it can also be provided that the second rectilinear section 30 "has an angle of 45 ° to the key longitudinal center plane.
  • a wave crest 18 extends as a curved course of the guideway about a 90 ° angle.
  • the tip 28 of the key is formed blunt and in particular forms a transversely extending to the key longitudinal axis rectilinear edge.
  • the guideway 30 may originate there as a slope or circular arc surface.
  • the wall surface 27 forms a support surface for the tip of the core pin when the key is inserted into the keyway channel 3.
  • the core pin 4 first contacts the wall surface 27 before it comes with its tip against the guide track 30.
  • the key channel 3 has two substantially mutually parallel keyway walls 7, 8. These two keyway walls 7, 8 form broad sides of the keyway 3 from. From these broad side planes, ribs protrude into the key channel, which engage grooves of the key profile adapted in the rib contour.
  • the pointing to the core bore 11 side of the keyway forms a narrow side wall. This narrow side wall runs essentially
  • One or more holes 17 are located in the narrow side wall of the key channel 3.
  • the at least one bore 17 allows the passage of the core pin 4 of the core hole 11, in the keyway 3.
  • the bore 17 is laterally offset to a median plane which runs in the middle of the two keyway walls 7, 8. The lateral offset of the bore 17 is such that the bore 17 is immediately adjacent to the keyway wall 8.

Description

Die Erfindung betrifft eine Schließvorrichtung mit einem Schließzylinder und einem dazu passenden Schlüssel gemäß Gattungsbegriff des Anspruches 1. Eine derartige Schließvorrichtung wird von der DE 25 46 551 A1 beschrieben. Der Zylinderkern besitzt zwei sich gegenüberliegende Seiten und eine im Wesentlichen quer dazu verlaufende Schmalseite. An einer der Schmalseite zugeordneten Kernbohrung steckt ein Kernstift, dessen Spitze schräg in den Schlüsselkanal hineinragt und dort gegen eine geschrägte Abtastflanke eines Schlüssels anliegt.The invention relates to a locking device with a lock cylinder and a matching key according to the preamble of claim 1. Such a closure device is of the DE 25 46 551 A1 described. The cylinder core has two opposite sides and a substantially transverse thereto narrow side. At one of the narrow side associated core hole inserted a core pin, the tip of which projects obliquely into the keyway and abuts there against a beveled scanning edge of a key.

Die EP 1251223A1 beschreibt einen Schließzylinder, in dessen Schlüsselkanal ein Schlüssel einsteckt. Durch eine Kernbohrung der Schmalseite ragt ein Abschnitt eines Kernstiftes in den Schlüsselkanal, wo er eine Abtastflanke des Schlüssels abtastet. Der Schlüssel besitzt seitlich abragende, schräg verlaufende Flanken aufweisende Rippen, die in zugeordneten Nuten der Schlüsselkanalschmalseitenwand eingreifen. In einer Parallelausnehmung zum Schlüsselkanal steckt ein als Zugstift ausgebildeter Ergänzungs-Zuhaltungsstift, der eine Beaufschlagungsflanke aufweist, die an einer Schlüsselrippeangreift.The EP 1251223A1 describes a lock cylinder, in the key channel einsteckt a key. Through a core hole of the narrow side protrudes a portion of a core pin into the keyway, where it scans a scanning edge of the key. The key has laterally projecting, obliquely extending flanks having ribs which engage in associated grooves of the keyway narrow side wall. In a parallel recess to the keyway inserted as a pull pin complementary Zuhaltungsstift having a Beaufschlagungsflanke which engages a Schlüsselripp.

Die EP 1837465 A2 beschreibt einen Schlüssel, bei dem die von den Zuhaltungsstiften abgetastete Abtastflanke schräg zur Schlüsselmittenebene verlaufen.The EP 1837465 A2 describes a key in which the scanned by the tumbler scan edge extending obliquely to the key center plane.

Eine Schließvorrichtung mit einem Schließzylinder einem dazu passenden Schlüssel beschreibt auch die DE 10 2005 000 092 A1 . Der Schlüssel besitzt zwei voneinander wegweisende Breitseiten, die Nuten ausbilden, in die Rippen der Seitenwandungen des Schlüsselkanals ragen. Die Schlüsselbrust wird von einer geneigten Seite eines Steges ausgebildet. Die von einem Zuhaltungsstift abgetastete geneigte Stegseite besitzt Schließausnehmungen, in die die Spitze des Zuhaltungsstiftes eingreifen kann.A locking device with a lock cylinder a matching key also describes the DE 10 2005 000 092 A1 , The key has two facing broad sides which form grooves into which ribs of the side walls of the keyway protrude. The key-chest is formed by a sloping side of a bridge. The scanned by a tumbler pin inclined web side has locking recesses into which the tip of the tumbler pin can engage.

Eine Schließvorrichtung mit einem Schließzylinder und einem dazu passenden Schlüssel beschreibt die EP 1503 010 B1 . Der Schließzylinder besitzt ein Zylindergehäuse mit einer Höhlung, in der ein Zylinderkern steckt. Der Zylinderkern besitzt einen Schlüsselkanal, der zwei sich gegenüberliegende Seitenwände aufweist. Die Seitenwände besitzen Profilrippen, die in den Schlüsselkanal ragen. Der dazu passende Schlüssel besitzt Profilnuten und kann in den Schlüsselkanal eingesteckt werden. Der Schlüssel besitzt eine Abtaststufe, die von mindestens einem Zuhaltungsstift abgetastet werden kann. Bei nicht eingestecktem Schlüssel wird die Drehbarkeit des Zylinderkerns von den Zuhaltungsstiften gesperrt. Die Abtaststufe verläuft in einem 90°-Winkel zur Kraftrichtung, mit der der Kernstift von der Zuhaltungsfeder beaufschlagt ist. An die Abtaststufe schließt sich ein Fortsatz an, der in einen Raum zwischen Seitenwand des Schlüsselkanals und Kernstift hineinragt. Die Abtaststufe wird hier von einer Führungsbahn ausgebildet, die von einer Seitenflanke einer Rippe gebildet ist, die sich entlang der Breitseite des Schlüsselschaftes erstreckt.A locking device with a lock cylinder and a matching key describes the EP 1503 010 B1 , The lock cylinder has a cylinder housing with a cavity in which a cylinder core is inserted. The cylinder core has a keyway having two opposing side walls. The side walls have tread ribs that protrude into the keyway. The matching key has profile grooves and can be plugged into the keyway. The key has a sampling stage that can be scanned by at least one tumbler pin. If the key is not inserted, the rotatability of the cylinder core is blocked by the tumbler pins. The scanning stage runs at a 90 ° angle to the direction of force, with which the core pin is acted upon by the tumbler spring. The sample stage is followed by an extension, which protrudes into a space between the side wall of the key channel and core pin. The scanning stage is formed here by a guideway which is formed by a side edge of a rib which extends along the broad side of the key shank.

Die DE 10 2005 009 153 A1 beschreibt einen Schließzylinder mit passendem Schlüssel und in den Schlüsselkanal hineinragenden Zuhaltungsstiften. Die Zuhaltungsstifte tasten an einer Berührungsstelle eine Abtaststelle des Schlüsselschaftes ab. Die Berührungsstelle bildet einen Flächenabschnitt, der quer zur Verlagerungsrichtung des Zuhaltungsstiftes verläuft.The DE 10 2005 009 153 A1 describes a lock cylinder with matching key and in the keyway projecting tumbler pins. The tumbler pins scan a sampling point of the key shank at a point of contact. The contact point forms a surface section which extends transversely to the direction of displacement of the tumbler pin.

Die US 7,963,135 B1 beschreibt eine Schließvorrichtung mit einem Schließzylinder und einem passenden Schlüssel. Ein im Zylinderkern verschieblich gelagerter Kernstift besitzt eine schräg verlaufende Kontaktflanke.The US Pat. No. 7,963,135 B1 describes a locking device with a lock cylinder and a matching key. A displaceably mounted in the cylinder core core pin has a sloping contact edge.

Die DE 103 24 205 B3 beschreibt einen Schließzylinder mit Schlüssel, wobei vom Schlüssel eine über die Schlüsselbreitseitenfläche hinausragende Rippe abragt. In einer Kernbohrung, die sich neben dem Schlüsselkanal befindet, befindet sich ein Zuhaltungsstift, der diese seitlich abragende Rippe abtastet.The DE 103 24 205 B3 describes a lock cylinder with key, wherein the key protrudes beyond the Schlüsselbreitseitenfläche rib. In a core hole, which is located next to the keyway, there is a tumbler pin, which scans this laterally projecting rib.

Aus der DE 27 03 464 ist ein Schlüssel bekannt, der eine Abtaststufe aufweist, die von mehreren Kernstiften abgetastet werden kann. Die Abtaststufe wird auch hier von einer Führungsbahn ausgebildet, neben der sich ein Fortsatz des Schlüsselschaftes erstreckt, der bis zu einer Brust beziehungsweise einem Rücken des Schlüssels ragt.From the DE 27 03 464 For example, a key is known which has a sampling stage that can be scanned by a plurality of core pins. The scanning stage is also formed here by a guideway, adjacent to which extends an extension of the key shank, which projects up to a chest or a back of the key.

Der Erfindung liegt die Aufgabe zugrunde, die aus einem Schließzylinder und einem passenden Schlüssel bestehende Schließvorrichtung gemäß Gattungsbegriff gebrauchsvorteilhaft weiterzubilden.The invention has for its object to further develop the use of a lock cylinder and a matching key locking device according to the generic term nutzsvorteilhaft.

Gelöst wird die Aufgabe durch die im Anspruch 1 angegebene Erfindung. Die Unteransprüche stellen vorteilhafte Weiterbildungen dar.The problem is solved by the invention defined in claim 1. The dependent claims represent advantageous developments.

Es wird vorgeschlagen, dass ein Flächenabschnitt der Abtaststufe in einem Winkel Alpha schräg zur Bewegungsrichtung des Zuhaltungsstiftes verläuft. Dieser Flächenabschnitt bildet die Berührungsstelle, an der die insbesondere abgerundete Spitze des Kernstiftes die Abtaststufe abtastet. Der Winkel kann zwischen 60° und 95° betragen. Er liegt bevorzugt zwischen 70° und 80°. Das Abtastende liegt jetzt nicht an einer quer zur Krafteinleitungsrichtung verlaufenden Abtaststufe an. Die Abtaststufe besitzt eine derartige Neigung, dass die an der Berührungsstelle angreifende Federkraft der Zuhaltungsfeder eine Kraftkomponente entfaltet, die eine Breitseite des Schlüsselschaftes in Richtung der ihr zugewandten Breitseitenwand des Schlüsselkanals beaufschlagt. Die dazu korrespondierende Gegenkraft beaufschlagt den Zuhaltungsstift in Richtung der gegenüberliegenden Breitseitenwand des Schlüsselkanals. Die Kraftkomponente und ihre Gegenkraftkomponente verläuft somit quer zur Einsteckrichtung des Schlüssel bzw. Schlüsselkanalerstreckungsrichtung in Richtung einer Wand des Schlüsselkanals. Diese Wand bildet eine Mulde aus, in der Abschnitt des Zuhaltungsstiftes einliegt. Die Mulde wird von einer Rippe der Breitseitenwand des Schlüsselkanals gebildet. Ein Fortsatz des Schlüsselschaftes besitzt eine derartige Materialstärke, dass er in einem Raum zwischen Zuhaltungsstift und der ersten Seitenwand eingreifend den Zuhaltungsstift in der Mulde fesselt. Die Erfindung wird durch die im Folgenden aufgeführten optionalen Merkmale die einzeln oder in Kombination erfinderische Bedeutung besitzen, vorteilhaft weitergebildet: Das Abtastende des Zuhaltungsstiftes kann von einer Rundung ausgebildet sein. Der Zuhaltungsstift kann einen durchmesservergrößerten Abschnitt aufweisen, der in einer entsprechend großen Kernbohrung des Zylinderkerns einliegt. Von diesem durchmesservergrößerten Abschnitt, dessen Stirnseite mit dem Gehäusestift zusammenwirkt, ragt ein durchmesserverminderter Abschnitt des Zuhaltungsstiftes ab. Dieser durchmesserverminderte Abschnitt des Zuhaltungsstiftes ragt durch einen entsprechend durchmesserverminderten Bohrungsabschnitt in den Schlüsselkanal. Der Bohrungsabschnitt mündet in einer Schmalseite des Schlüsselkanals. Der durchmesserverminderte Abschnitt des Zuhaltungsstiftes liegt an einer Seitenwand des Schlüsselkanals an. Zwischen der gegenüberliegenden Seitenwand des Schlüsselkanals und dem Abschnitt des Zuhaltungsstiftes liegt ein Freiraum. In diesem Raum steckt der Fortsatz des in den Schlüsselkanal eingeschobenen Schlüsselschaftes. Der Fortsatz besitzt eine derartige Materialstärke, dass er den Abschnitt des Zuhaltungsstiftes formschlüssig in der Mulde fesselt. Beide Seitenwände des Schlüsselkanals können in den Schlüsselkanal hineinragende Rippen aufweisen. Die Rippen greifen in entsprechende Profilnuten der Breitseiten des Schlüsselschaftes. Der Schlüsselschaft ist - bezogen auf eine Schlüssellängsachse - spiegelsymmetrisch gestaltet, so dass es sich um einen Wende-Flachschlüssel handelt. Beide Schlüsselbreitseiten bilden eine Führungsbahn aus, die Abtaststufen für mehrere Kernstifte ausbildet. Die Abtaststufe kann von einer Fase der Führungsbahn ausgebildet sein. Die Fase kann sich insbesondere wellenförmig über die Länge des Schlüsselschaftes erstrecken. Die Führungsbahn kann an der Schlüsselspitze einen kleinen Neigungswinkel gegenüber der Längsachse des Schlüsselschaftes aufweisen. Beabstandet von der Schlüsselspitze kann die Führungsbahn in einen Abschnitt übergehen, der um einen größeren Winkel gegenüber der Schlüssellängsachse geneigt ist. Die Stirnfläche des Kernstiftes, die an der Führungsbahn beziehungsweise der Abtaststufe anliegt, ist bevorzugt derart gerundet, dass sie an einem geneigten Abschnitt der Führungsstifte in Punktberührung anliegt. Die Führungsbahn kann in der Schlüsselspitze mit einer Ausrichtung, die parallel zur Schlüssellängserstreckung verläuft, beginnen. Es handelt sich dabei um eine Tangente eines Radius, der sich unmittelbar an die Spitze anschließt. Die Führungsbahn kann ausgehend von der Spitze dann zunächst entlang eines Kreisbogens mit einem Radius von etwa 1,5 mm verlaufen. Die Führungsbahn kann dann in einen geradlinigen Abschnitt übergehen, der einen Winkel von etwa 35° zur Schlüssellängsmittelachse aufweist. An den geradlinigen Abschnitt kann sich eine leichte Krümmung anschließen, nach der die Führungsbahn wieder in einen geradlinigen Abschnitt übergehen kann, der um einen Winkel von 45° zur Schlüssellängsachse geneigt sein kann. Die sich daran anschließende Rundung kann den ersten Wellenberg der wellenförmigen Führungsbahn bilden. Die beiden Flanken des Wellenberges können einen Winkel von etwa 90° zueinander haben. Der Schlüsselkanal besitzt zwei sich im Wesentlichen parallel zueinander erstreckende Breitseitenflächen, von denen jeweils Rippen in den Schlüsselkanal hineinragen und zwischen den Rippen Nuten angeordnet sind. Eine Schmalseite des Schlüsselkanals wird von einer Spaltöffnung des Zylinderkerns gebildet und somit durch die Höhlungswandung der Gehäusebohrung verschlossen. Die andere Schmalseitenwand des Schlüsselkanals besitzt die Bohrung, durch die ein Abschnitt des Kernstiftes in den Schlüsselkanal hineinragt. Diese Bohrung grenzt an eine der beiden Breitseitenwände an, so dass der Kernstiftabschnitt in berührende Anlage an die Breitseitenwandung treten kann, wenn auf ihn die eingangs genannte Querkraft wirkt. Der Zuhaltungsstift ist von der gegenüberliegenden Breitseitenwand und insbesondere von den Scheitellinien der Rippen der gegenüberliegenden Breitseitenwand beabstandet. Die Bohrung der Schmalseitenwand ist ebenfalls von dieser Breitseitenwand beabstandet.It is proposed that a surface section of the scanning stage runs at an angle alpha at an angle to the direction of movement of the tumbler pin. This surface portion forms the contact point at which the particular rounded tip of the core pin scans the scanning stage. The angle can be between 60 ° and 95 °. It is preferably between 70 ° and 80 °. The scanning end is now not at a transverse to the direction of force application scanning stage. The sampling stage has such a tendency that the force acting on the contact point spring force of the tumbler spring unfolds a force component which acts on a broad side of the key shaft in the direction of its facing broad side wall of the keyway. The corresponding counterforce acts on the tumbler pin in the direction the opposite broad side wall of the keyway. The force component and its counterforce component thus extends transversely to the insertion direction of the key or key channel extension direction in the direction of a wall of the key channel. This wall forms a trough, rests in the section of the tumbler pin. The trough is formed by a rib of the broad side wall of the keyway. An extension of the key shank has such a material thickness that it captivates the tumbler pin in the recess in a space between the tumbler pin and the first side wall. The invention is advantageously further developed by the optional features listed below which individually or in combination have an inventive meaning: the scanning end of the tumbler pin can be formed by a curve. The tumbler pin may have an enlarged diameter portion which rests in a correspondingly large core bore of the cylinder core. From this diameter-enlarged portion, whose end face cooperates with the housing pin, projects a reduced diameter portion of the tumbler pin. This reduced diameter portion of the tumbler pin projects through a correspondingly reduced diameter bore portion in the keyway. The bore portion opens into a narrow side of the keyway. The reduced diameter portion of the tumbler pin abuts against a side wall of the keyway. Between the opposite Side wall of the keyway and the section of the tumbler pin is a free space. In this space is the extension of the inserted into the keyway key shank. The extension has such a material thickness that it captivates the section of the tumbler pin positively in the trough. Both side walls of the keyway may have ribs projecting into the keyway. The ribs engage in corresponding profile grooves of the broad sides of the key shank. The key shank is - based on a key longitudinal axis - designed mirror-symmetrical, so it is a turn-flat key. Both key wide sides form a guideway that forms sensing stages for multiple core pens. The scanning stage may be formed by a chamfer of the guideway. The chamfer may in particular extend undulating over the length of the key shank. The guideway may have a small angle of inclination relative to the longitudinal axis of the key shank at the key tip. Distanced from the key tip, the guideway may transition into a portion which is inclined at a greater angle to the key longitudinal axis. The end face of the core pin, which abuts against the guide track or the Abtaststufe, is preferably rounded so that it rests against an inclined portion of the guide pins in point contact. The guideway may begin in the key tip with an orientation that is parallel to the key elongation. It is a tangent of a radius that immediately adjoins the tip. The guideway may then initially extend along a circular arc with a radius of approximately 1.5 mm, starting from the tip. The guideway may then transition into a rectilinear section having an angle of about 35 ° to the key longitudinal center axis. The rectilinear section may be followed by a slight curvature, after which the guideway may again pass into a rectilinear section, which may be inclined at an angle of 45 ° to the key longitudinal axis. The subsequent rounding can be the first wave mountain of the wave-shaped Form guideway. The two flanks of the wave mountain can have an angle of about 90 ° to each other. The keyway has two substantially parallel to each other extending broad side surfaces, each of which ribs protrude into the keyway and grooves are arranged between the ribs. A narrow side of the keyway is formed by a gap opening of the cylinder core and thus closed by the cavity wall of the housing bore. The other narrow side wall of the keyway has the bore through which a portion of the core pin projects into the keyway. This bore adjacent to one of the two broad side walls, so that the core pin portion can come into abutting contact with the broad side wall when acting on the above-mentioned transverse force. The tumbler pin is spaced from the opposite broad side wall and in particular from the apex lines of the ribs of the opposite broad side wall. The bore of the narrow side wall is also spaced from this broad side wall.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand beigefügter Zeichnungen erläutert. Es zeigen:

Fig. 1
die Ansicht eines Zylindergehäuses 1 mit einem darin steckenden passenden Schlüssel 20,
Fig. 2
den Schnitt gemäß der Linie II-II in Figur 1,
Fig. 3
vergrößert den Abschnitt III-III in Figur 2,
Fig. 4
den Schnitt gemäß der Linie IV-IV in Figur 2,
Fig. 5
den Abschnitt V-V in Figur 4,
Fig. 6
den Schnitt gemäß der Linie VI-VI in Figur 4,
Fig. 7
die Ansicht auf den Schlüssel 20,
Fig. 8
vergrößert den Ausschnitt VIII-VIII in Figur 7,
Fig. 9
den Schnitt gemäß der Linie IX-IX in Figur 8 und
Fig. 10
perspektivisch und aufgebrochen den in den Schlüsselkanal nicht vollständig eingeschobenen Schlüssel.
An embodiment of the invention will be explained below with reference to accompanying drawings. Show it:
Fig. 1
the view of a cylinder housing 1 with a matching key 20 inserted therein,
Fig. 2
the section according to the line II-II in FIG. 1 .
Fig. 3
enlarges section III-III in FIG. 2 .
Fig. 4
the section according to the line IV-IV in FIG. 2 .
Fig. 5
the section VV in FIG. 4 .
Fig. 6
the section according to the line VI-VI in FIG. 4 .
Fig. 7
the view on the key 20,
Fig. 8
Enlarges the section VIII-VIII in FIG. 7 .
Fig. 9
the section according to the line IX-IX in FIG. 8 and
Fig. 10
in perspective and broken the not fully inserted in the key channel key.

Die erfindungsgemäße Schließvorrichtung besitzt einen Schließzylinder mit einem Zylindergehäuse 1, in dem ein Schlüssel 20 eingeschoben ist. Das Zylindergehäuse 1 besitzt eine Höhlung 12 mit einer entlang eines kreisförmigen Grundrisses verlaufenden Wandung, in der ein zylinderförmiger Zylinderkern 2 steckt. Der Zylinderkern 2 besitzt eine sich in Achsrichtung des Zylinderkerns 2 erstreckende Ausnehmung, die einen Schlüsselkanal 3 ausbildet, in den der Schlüsselschaft 21 des Schlüssels 20 einsteckbar ist.The locking device according to the invention has a lock cylinder with a cylinder housing 1, in which a key 20 is inserted. The cylinder housing 1 has a cavity 12 with a wall running along a circular outline, in which a cylindrical cylinder core 2 is inserted. The cylinder core 2 has a recess extending in the axial direction of the cylinder core 2, which forms a key channel 3 into which the key shank 21 of the key 20 can be inserted.

Der Schlüsselkanal 3 besitzt zwei sich gegenüberliegende Seitenwände 7, 8, von denen Profilrippen 15 in den Schlüsselkanal hineinragen. Die Breitseiten 23, 24 des Schlüssels bilden Profilnuten aus, in die die Profilrippen 15 eintreten können.The keyway 3 has two opposite side walls 7, 8, of which profile ribs 15 protrude into the keyway. The broad sides 23, 24 of the key form profile grooves into which the profile ribs 15 can enter.

Der Schlüsselkanal 3 ist zur Mantelwand des Zylinderkerns 2 offen. Er wird von dieser Seite durch die Wandung der den Zylinderkern 2 aufnehmenden Höhlung 12 begrenzt. Die dieser Öffnung gegenüberliegende Schmalseite des Schlüsselkanals 3 besitzt eine Vielzahl von Kernbohrungen 11. In jeder der Kernbohrungen 11 steckt ein Kernstift 4, der einen Abschnitt mit einem großen Durchmesser und einen Abschnitt 13 mit einem geringeren Durchmesser aufweist. Der einen geringeren Durchmesser aufweisende Abschnitt 13 durchdringt einen Bohrungsabschnitt 17 mit einem geringeren Durchmesser und ragt in den Schlüsselkanal 3 hinein.The keyway 3 is open to the jacket wall of the cylinder core 2. It is bounded from this side by the wall of the cylinder core 2 receiving cavity 12. The opposite side of this opening narrow side of the keyway 3 has a plurality of core holes 11. In each of the core holes 11 is a core pin 4, which has a portion with a large diameter and a portion 13 with a smaller diameter. The smaller diameter portion 13 penetrates a bore portion 17 with a smaller diameter and protrudes into the keyway 3 inside.

Das freie Ende des in den Schlüsselkanal 3 hineinragenden Abschnitts 13 des Zuhaltungsstiftes 4 besitzt ein gerundetes Abtastende 9. Das Abtastende 9 liegt an einer Abtaststufe 22 des Schlüssels 20 an.The free end of the protruding into the keyway 3 portion 13 of the tumbler pin 4 has a rounded Abtastende 9. The sampling end 9 is applied to a sampling stage 22 of the key 20 at.

Der Abstand der Abtaststufe 22 von der Brust 25 des Schlüsselschaftes 21 definiert das Maß, um das der Kernstift 4 in die Kernbohrung 11 eintauchen kann. Der passende Schlüssel lässt den Kernstift 4 nur so weit in die Kernbohrung 11 eintauchen, dass das dem Abtastende 9 gegenüberliegende Ende des Kernstiftes 4 in der Trennfläche zwischen Zylinderkern 2 und Gehäusebohrung 12 liegt, so dass der Zylinderkern 2 gedreht werden kann.The distance of the scanning stage 22 from the breast 25 of the key shank 21 defines the extent to which the core pin 4 can dip into the core bore 11. The matching key leaves the core pin 4 so far immersed in the core hole 11 that the sampling end 9 opposite end of the core pin 4 is located in the interface between the cylinder core 2 and housing bore 12, so that the cylinder core 2 can be rotated.

Ein Flanschabschnitt des Zylindergehäuses 1 bildet eine Gehäusebohrung 16, die zur Kernbohrung 11 fluchtet. Eine Zuhaltungsfeder 6 stützt sich am Boden der Gehäusebohrung 16 ab und beaufschlagt einen Gehäusestift 5 in Richtung des Schlüsselkanals 3. Vor der zum Schlüsselkanal 3 weisenden Stirnfläche des Gehäusestiftes 5 befindet sich der Kernstift 4, der somit mittels der Zuhaltungsfeder 6 in Richtung auf die Abtaststufe 22 beaufschlagt wird.A flange portion of the cylinder housing 1 forms a housing bore 16 which is aligned with the core bore 11. A tumbler spring 6 is supported at the bottom of the housing bore 16 and acts on a housing pin 5 in the direction of the key channel 3. In front of the keyway 3 facing end face of the housing pin 5 is the core pin 4, thus by means of tumbler 6 in the direction of the sampling stage 22nd is charged.

Das Schlüsselgeheimnis wird durch die in den Kernbohrungen 11 steckenden Kernstiften 4 definiert. Die Eintauchtiefe der Kernstifte 4 in dem Schlüsselkanal 8 wird von der axialen Länge des durchmesserverminderten Abschnitts 13 des Zuhaltungsstiftes 4 definiert. Diese Abschnitte können bei allen Zuhaltungsstiften 4 eine einheitliche Länge besitzen. Der durchmesservergrößerte Abschnitt, der im Wesentlichen den Querschnitt der Kernbohrung 11 voll ausfüllt, kann eine individuelle axiale Länge haben. Beispielsweise besitzt der in der Figur 3 dargestellte Kernstift 4 eine geringere Länge als der in der Figur 5 dargestellte Kernstift. Dem entsprechend muss der in der Figur 5 dargestellte Kernstift 4 tiefer in den Schlüsselkanal 8 eintauchen, als der in der Figur 3 dargestellte Kernstift 4, um eine Drehbarkeit des Zylinderkernes 2 in der Gehäusehöhlung zu erlauben, da hierzu die Trennfuge zwischen Gehäusestift 5 und Kernstift 4 in der Drehfläche des Zylinderkerns 2 liegen muss.The key secret is defined by the core pins 4 stuck in the core bores 11. The immersion depth of the core pins 4 in the keyway 8 is defined by the axial length of the reduced diameter portion 13 of the tumbler pin 4. These sections may have a uniform length for all tumbler pins 4. The diameter-enlarged portion, which substantially fills the cross-section of the core bore 11, may have an individual axial length. For example, in the FIG. 3 illustrated core pin 4 has a shorter length than that in the FIG. 5 illustrated core pin. Accordingly, the must in the FIG. 5 illustrated Kernstift 4 deeper into the keyway 8 dive, as in the FIG. 3 illustrated core pin 4 to allow rotation of the cylinder core 2 in the housing cavity, since this must be the parting line between the housing pin 5 and core pin 4 in the rotational surface of the cylinder core 2.

Der in den Figuren 7 bis 9 dargestellte Schlüssel ist ein Wende-Flachschlüssel. Er besitzt eine Schlüssellängsachse, um die das in Figur 7 dargestellte Querschnittsprofil spiegelsymmetrisch verläuft. Der Schlüsselschaft 21 besitzt zwei im Wesentlichen parallel zueinander verlaufende, mit Nuten und Rippen versehene Breitseiten 23, 24 und zwei Schmalseiten, die von einer Schlüsselbrust 25 und einem Schlüsselrücken 29 ausgebildet sind.The in the FIGS. 7 to 9 The illustrated key is a reversible flat key. He has a key longitudinal axis around which the in FIG. 7 cross-sectional profile shown is mirror-symmetrical. The key shank 21 has two substantially parallel extending, provided with grooves and ribs broad sides 23, 24 and two narrow sides, which are formed by a key-chest 25 and a key back 29.

Es ist eine wellenförmige Führungsbahn 30 vorgesehen, die im Bereich der Schlüsselspitze 28 eine geringe Neigung gegenüber der Längsachse des Schlüsselschaftes aufweist. Der Neigungswinkel vergrößert sich in einem Abstand zur Schlüsselspitze 28. Dort besitzt die Führungsbahn 30 einen Abschnitt, der stark geneigt ist. Die Wellentäler 30' der Führungsbahn 30 bilden fünf Abtaststufen 22 aus, die von dem jeweils gerundeten Abtastende 9 der Kernstifte 4 abgetastet werden.A wavy guideway 30 is provided, which has a slight inclination with respect to the longitudinal axis of the key shank in the region of the key tip 28. The inclination angle increases at a distance from the key tip 28. There, the guide track 30 has a portion which is highly inclined. The wave troughs 30 'of the guideway 30 form five sampling stages 22, which are scanned by the respective rounded sampling end 9 of the core pins 4.

An die Führungsbahn 30 schließt sich eine Wandfläche 27 an, die parallel zur Breitseitenebene des Schlüsselschaftes 21 verläuft. Die Wandfläche 27 wird von einem Fortsatz 26 ausgebildet, dessen äußerer Rand die Brust 25 beziehungsweise den Rücken 29 bildet.The guide track 30 is adjoined by a wall surface 27, which runs parallel to the broad side plane of the key shank 21. The wall surface 27 is formed by an extension 26 whose outer edge forms the breast 25 or the back 29.

Bezogen auf die Flächennormale besitzt die Führungsbahn 30 eine Neigung, die in der Figur 3 mit dem Winkel α gekennzeichnet ist und etwa 75° beträgt. Bei der Fertigung der Führungsbahn 30 entsteht die Neigung durch die Verwendung eines entsprechenden Profilfräsers. Die Schräge der Führungsbahn 30 wird von einer Fase ausgebildet.Based on the surface normal, the guideway 30 has a slope which is in the FIG. 3 is marked with the angle α and is about 75 °. In the manufacture of the guideway 30, the inclination is created by the use of a corresponding profile cutter. The slope of the guideway 30 is formed by a chamfer.

Die gerundete Stirnfläche des Abtastendes 9 tritt in eine punktförmige Berührung an die Abtaststufe 22. In der Figur 3 wird mit F die Kraftrichtung bezeichnet, in der die Zuhaltungsfeder 6 den Kernstift 4 gegen die Abtaststufe 22 beaufschlagt. Die bezogen auf die Erstreckungsrichtung der Abtaststufe 22 verlaufende Normalkomponente N besitzt einen Winkel α gegenüber der Kraftrichtung F. Als Folge dessen bildet sich eine Kraftkomponente K aus, die die Breitseitenfläche 23 in Richtung auf die Schlüsselkanalwand 7 beaufschlagt. Dies hat zur Folge, dass sich die Wandfläche 27 geringfügig vom Abschnitt 13 des Kernstiftes 4 beabstandet.The rounded end face of the scanning end 9 enters into a punctiform contact with the scanning stage 22. In the FIG. 3 is denoted by F the force direction in which the tumbler spring 6 acts on the core pin 4 against the sampling stage 22. The normal component N extending in relation to the extension direction of the scanning stage 22 has an angle α with respect to the direction of force F. As a consequence, a force component K is formed which acts on the broadside surface 23 in the direction of the keyway wall 7. This has the consequence that the wall surface 27 is slightly spaced from the section 13 of the core pin 4.

Die zur Kraftkomponente K entgegengerichtete Gegenkraft K' beaufschlagt den Abschnitt 13 des Zuhaltungsstiftes 4 in Richtung der Schlüsselkanalwand 8.The counterforce K 'directed counter to the force component K acts on the section 13 of the tumbler pin 4 in the direction of the keyway wall 8.

Die Schlüsselkanalwand 8 besitzt Rippen 15. Zumindest eine der Rippen 15 bildet eine Mulde 14 aus, in der der Abschnitt 13 des Zuhaltungsstiftes 4 einliegt.The keyway wall 8 has ribs 15. At least one of the ribs 15 forms a trough 14, in which the portion 13 of the tumbler pin 4 rests.

Der im Wellental der Führungsbahn 30 angreifende Kernstift 4 erzeugt somit eine senkrecht zur Schlüsselbreitseitenebene gerichtete Kraftkomponente K, die die Schlüsselbreitseite 23 gegen die Schlüsselkanalwand 7 beaufschlagt.The acting in the trough of the guideway 30 core pin 4 thus generates a perpendicular to Schlüsselbreitseitenebene directed force component K, which acts on the Schlüsselbreitseite 23 against the keyway wall 7.

Der durchmesserverminderte Bohrungsabschnitt 17, durch den der Abschnitt 13 des Kernstiftes 4 in den Schlüsselkanal 3 hineinragt, mündet außermittig in den Schlüsselkanal 3, so dass ein Mantelabschnitt der Oberfläche des Abschnittes 13 des Zuhaltungsstiftes 4 an der Schlüsselkanalwand 8 anliegt. Er liegt dort auch bereichsweise in einer Mulde 14, die von einer Rippe 15 gebildet ist. Zur anderen Schlüsselkanalwand 7 hat der Kernstift 4 einen Abstand. Es bildet sich ein Freiraum, in den der Fortsatz 26 des Schlüsselschaftes 21 eingreift.The reduced diameter bore portion 17 through which protrudes the portion 13 of the core pin 4 in the keyway 3, opens eccentrically into the keyway 3, so that a skirt portion of the surface of the portion 13 of the tumbler pin 4 rests against the keyway wall 8. He lies there in some areas in a trough 14, which is formed by a rib 15. To the other keyway wall 7 of the core pin 4 has a distance. It forms a space into which the extension 26 of the key shank 21 engages.

Der Figur 8 ist zu entnehmen, dass die Führungsbahn 30 im Bereich der Schlüsselspitze 28 mit derselben Steigung verläuft, wie sich ein daran anschließender Abschnitt 30'. Es ist aber auch denkbar, dass die Führungsbahn 30 im Bereich der Schlüsselspitze 28 zunächst parallel zur Erstreckungsrichtung des Schlüssels, also zur Schlüssellängsachse verläuft. Dieser Bereich kann der Abschnitt einer Rundung sein, welche einen Radius von etwa 1,5 mm besitzen kann. Diese Rundung könnte sich bis zum geradlinig verlaufenden Abschnitt 30' erstrecken. Dieser Abschnitt 30' kann wie bei dem in der Figur 8 dargestellten Ausführungsbeispiel einen Winkel von 35° gegenüber der Schlüssellängsachse besitzen. Bei dem in der Figur 8 dargestellten Ausführungsbeispiel schließt sich an den geradlinigen Abschnitt 30' ein zweiter geradliniger Abschnitt 30" an. Beim Ausführungsbeispiel haben diese Abschnitte eine identische Neigung. Es kann aber auch vorgesehen sein, dass der zweite geradlinige Abschnitt 30" einen Winkel von 45° zur Schlüssellängsmittelebene besitzt. Ein Wellenberg 18 erstreckt sich als gekrümmter Verlauf der Führungsbahn um einen 90° Winkel.Of the FIG. 8 It can be seen that the guideway 30 runs in the region of the key tip 28 with the same pitch, as is a subsequent section 30 '. However, it is also conceivable that the guideway 30 in the area of the key tip 28 initially runs parallel to the extension direction of the key, that is to say to the key longitudinal axis. This area may be the portion of a round which may have a radius of about 1.5 mm. This rounding could extend to the rectilinear section 30 '. This section 30 'can be like that in the FIG. 8 illustrated embodiment have an angle of 35 ° relative to the key longitudinal axis. In the in the FIG. 8 In the exemplary embodiment, these sections have an identical inclination, but it can also be provided that the second rectilinear section 30 "has an angle of 45 ° to the key longitudinal center plane. A wave crest 18 extends as a curved course of the guideway about a 90 ° angle.

Es wird als vorteilhaft angesehen, dass die Spitze 28 des Schlüssels stumpf ausgebildet ist und insbesondere eine quer zur Schlüssellängsachse verlaufende geradlinige Flanke ausbildet. Die Führungsbahn 30 kann dort als Schräge oder als Kreisbogenfläche entspringen. Die Wandfläche 27 bildet eine Stützfläche für die Spitze des Kernstiftes aus, wenn der Schlüssel in den Schlüsselkanal 3 eingeschoben wird. Vorzugsweise berührt der Kernstift 4 zunächst die Wandfläche 27, bevor er mit seiner Spitze gegen die Führungsbahn 30 tritt.It is considered advantageous that the tip 28 of the key is formed blunt and in particular forms a transversely extending to the key longitudinal axis rectilinear edge. The guideway 30 may originate there as a slope or circular arc surface. The wall surface 27 forms a support surface for the tip of the core pin when the key is inserted into the keyway channel 3. Preferably, the core pin 4 first contacts the wall surface 27 before it comes with its tip against the guide track 30.

Der Schlüsselkanal 3 besitzt zwei im Wesentlichen parallel zueinander verlaufende Schlüsselkanalwände 7, 8. Diese beiden Schlüsselkanalwände 7, 8 bilden Breitseiten des Schlüsselkanals 3 aus. Von diesen Breitseitenebenen ragen Rippen in den Schlüsselkanal, die in der Rippenkontur angepasste Nuten des Schlüsselprofils eingreifen. Die zu der Kernbohrung 11 weisende Seite des Schlüsselkanals bildet eine Schmalseitenwand aus. Diese Schmalseitenwand verläuft im Wesentlichen rechtwinklig zu den beiden Schlüsselkanalwänden 7, 8. Ein oder mehrere Bohrungen 17 befinden sich in der Schmalseitenwand des Schlüsselkanals 3. Die mindestens eine Bohrung 17 erlaubt den Durchtritt des Kernstiftes 4 von der Kernbohrung 11, in den Schlüsselkanal 3. Die Bohrung 17 ist seitlich versetzt zu einer Mittelebene, die in der Mitte der beiden Schlüsselkanalwände 7, 8 verläuft. Der seitliche Versatz der Bohrung 17 ist derart, dass die Bohrung 17 unmittelbar an die Schlüsselkanalwand 8 angrenzt. Dies hat zur Folge, dass der Kernstift 4 an der Schlüsselkanalwand 8 anliegt bzw. in einer Mulde liegt, die von einer von der Schlüsselkanalwand 8 abragenden Rippe 15 erzeugt ist. Bezugszeichenliste: 1 Zylindergehäuse 25 Brust 2 Zylinderkern 26 Fortsatz 3 Schlüsselkanal 27 Wandfläche 4 Kernstift/Zuhaltungsstift 28 Schlüsselspitze 5 Gehäusestift 29 Rücken 6 Zuhaltungsfeder 30 Führungsbahn 7 Schlüsselkanalwand 30' erster Abschnitt 8 Schlüsselkanalwand 30" zweiter Abschnitt 9 Abtastende 10 Berührungsstelle 11 Kernbohrung F Kraftrichtung 12 Gehäusebohrung K Kraftkomponente 13 Abschnitt des Zuhaltungsstiftes 4 K' Gegenkraft 14 Mulde N Normalkomponente 15 Rippe 16 Gehäusebohrung 17 Bohrungsabschnitt 18 Wellenberg α Winkel 20 Schlüssel 21 Schlüsselschaft 22 Abtaststufe 23 Breitseite 24 Breitseite The key channel 3 has two substantially mutually parallel keyway walls 7, 8. These two keyway walls 7, 8 form broad sides of the keyway 3 from. From these broad side planes, ribs protrude into the key channel, which engage grooves of the key profile adapted in the rib contour. The pointing to the core bore 11 side of the keyway forms a narrow side wall. This narrow side wall runs essentially One or more holes 17 are located in the narrow side wall of the key channel 3. The at least one bore 17 allows the passage of the core pin 4 of the core hole 11, in the keyway 3. The bore 17 is laterally offset to a median plane which runs in the middle of the two keyway walls 7, 8. The lateral offset of the bore 17 is such that the bore 17 is immediately adjacent to the keyway wall 8. This has the consequence that the core pin 4 rests against the keyway wall 8 or lies in a depression which is produced by a rib 15 protruding from the keyway wall 8. <B> LIST OF REFERENCES: </ b> 1 cylinder housing 25 chest 2 cylinder core 26 extension 3 keyway 27 wall surface 4 Core pin / tumbler 28 key tip 5 housing pin 29 move 6 tumbler 30 guideway 7 Key channel wall 30 ' first section 8th Key channel wall 30 " second part 9 scanning 10 contact point 11 core drilling F direction of force 12 housing bore K force component 13 Section of the tumbler pin 4 K ' counterforce 14 trough N normal component 15 rib 16 housing bore 17 bore section 18 Wellenberg α angle 20 key 21 key shaft 22 sampling stage 23 broadside 24 broadside

Claims (7)

  1. Locking device comprising a key (20) and a locking cylinder comprising a cylinder core (2) that is mounted in a cylinder housing (1) and comprises a key channel (3) that comprises two opposing first and second side walls (7, 8) and a narrow side wall extending substantially transversely thereto, into which key channel a tracing end (9) of at least one tumbler pin (4), which can move in a core hole (17) associated with the narrow side wall, projects transversely to the extension direction of the key channel (3), the tracing end (9), which is acted on by a spring (6), resting on a contact point (10) on a tracing stage (22) of a key shank (21) of the key (20) inserted in the key channel (3), which tracing stage extends, at an angle (α), obliquely to the movement direction of the tumbler pin (4), the force of the spring (6) that comes into effect at the contact point (10) producing a force component (K) which acts on a broadside (23) of the key shank (21) towards the first side wall (7) and the counterforce (K') thereof acting on the tumbler pin (4) towards the second side wall (8), characterised in that the key shank (21) comprises a projection (26) that engages in a space between the tumbler pin (4) and the first side wall (7) and has such a material thickness that it holds, in a form-fitting manner, a portion (13) of the tumbler pin (4) in a trough (14) of the second side wall (8) formed by at least one rib (15).
  2. Locking device according to claim 1, characterised in that the rib (15) extends towards the first side wall (7) into the key channel (3) and engages in a profile groove of the broadside (24) of the key shank (21).
  3. Locking device according to any of the preceding claims, characterised by a guide track (30) that adjoins the projection (26), points towards the back (29) of the key shank (21), acts on the tracing end (9) of the at least one tumbler pin (4) when the key (20) is pushed into the key channel (3) and forms the tracing stage (22).
  4. Locking device according to any of the preceding claims, characterised in that the tracing stage (22) is formed by a chamfer of a guide track (30) that extends in particular in an undulating manner over the length of the key shank (21).
  5. Locking device according to any of the preceding claims, characterised in that the first side wall (7) comprises profile ribs that engage in profile grooves of the broadside (23) of the key shank (21).
  6. Locking device according to any of the preceding claims, characterised in that the projection (26) that begins on the key tip (28) extends at least over the region of the key shank (21) traced by the tumbler pins (4).
  7. Locking device according to any of the preceding claims, characterised in that the hole (17) directly adjoins the second key channel broadside wall (8) and is at a distance from the first key channel broadside wall (7).
EP14161741.5A 2013-04-16 2014-03-26 Locking device with a locking cylinder Active EP2792823B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14161741T PL2792823T3 (en) 2013-04-16 2014-03-26 Locking device with a locking cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013103789.5A DE102013103789A1 (en) 2013-04-16 2013-04-16 Locking device with a lock cylinder

Publications (3)

Publication Number Publication Date
EP2792823A2 EP2792823A2 (en) 2014-10-22
EP2792823A3 EP2792823A3 (en) 2015-07-29
EP2792823B1 true EP2792823B1 (en) 2017-09-06

Family

ID=50349521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14161741.5A Active EP2792823B1 (en) 2013-04-16 2014-03-26 Locking device with a locking cylinder

Country Status (4)

Country Link
EP (1) EP2792823B1 (en)
DE (1) DE102013103789A1 (en)
ES (1) ES2643596T3 (en)
PL (1) PL2792823T3 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2546551C3 (en) * 1975-10-17 1978-09-07 Fa. Wilhelm Karrenberg, 5620 Velbert Cylinder lock with flat key
DE2703464A1 (en) 1977-01-28 1978-08-03 Ymos Metallwerke Wolf & Becker SECURITY KEY
DE29708308U1 (en) * 1996-12-23 1997-08-28 Schulte Zylinderschl Gmbh Locking cylinder
DE10324205B3 (en) * 2003-05-28 2004-10-21 Dom-Sicherheitstechnik Gmbh & Co. Kg Cylinder for a lock comprises a key with a highly profiled rib having control tracks arranged next to each other in the key insertion direction
DE20311690U1 (en) 2003-07-28 2003-12-18 Bks Gmbh Key, key blank and profile cylinder with key
DE102005009153A1 (en) * 2004-07-21 2006-02-16 Bks Gmbh Profile cylinder, for a cylinder lock, has an additional blocking unit in the stem part of the housing which can be overcome externally
DE102005000092A1 (en) * 2005-07-20 2007-03-01 Aug. Winkhaus Gmbh & Co. Kg Key for a locking system
DE102006000126A1 (en) * 2006-03-20 2007-09-27 Aug. Winkhaus Gmbh & Co. Kg Key for a lock cylinder
US7775074B1 (en) * 2007-03-12 2010-08-17 Tobias Marc W System for obstructing movement of lock pins

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
DE102013103789A1 (en) 2014-10-16
EP2792823A2 (en) 2014-10-22
EP2792823A3 (en) 2015-07-29
ES2643596T3 (en) 2017-11-23
PL2792823T3 (en) 2018-01-31

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