EP2746500A1 - Lock device and key for a locking device - Google Patents
Lock device and key for a locking device Download PDFInfo
- Publication number
- EP2746500A1 EP2746500A1 EP20140159332 EP14159332A EP2746500A1 EP 2746500 A1 EP2746500 A1 EP 2746500A1 EP 20140159332 EP20140159332 EP 20140159332 EP 14159332 A EP14159332 A EP 14159332A EP 2746500 A1 EP2746500 A1 EP 2746500A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- sliding
- tip
- flanks
- flank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims abstract description 23
- 230000033001 locomotion Effects 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 7
- 238000003801 milling Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
- E05B27/0017—Tumblers or pins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7486—Single key
- Y10T70/7508—Tumbler type
- Y10T70/7559—Cylinder type
- Y10T70/7588—Rotary plug
- Y10T70/7593—Sliding tumblers
- Y10T70/7599—Transverse of plug
- Y10T70/7605—Pin tumblers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7785—Tumblers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7842—Single shank or stem
- Y10T70/7859—Flat rigid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7881—Bitting
Definitions
- the invention relates to a locking device according to the preamble of claim 1 and a key for such a locking device.
- the DE 298 18 143 U1 describes a safety key and the tumbler pin of an associated lock cylinder.
- the wide side surface of the flat key shank of the security key has a plurality of pot-shaped coding recesses.
- Each coding recess has a support flank formed by the bottom of the pot, against which the blunt front end of a tumbler pin chamfered on the face can be supported.
- the support surface merges into a concave, rounded sliding surface. This rounding turns into a more inclined sloping flank. The latter merges into a concave rounded sliding surface with a smaller pitch.
- the concave rounded sliding surface extends in a broad side surface of the key shank. As a result, a kink-free course of a sliding edge is given with different degrees inclined to the insertion of the key in the keyway of the lock cylinder sections.
- a Codianssaus Principleung with kink-free course of sections of different pitch having sliding edge also describes the DE 20 2006 005188 U1 ,
- the wall of the coding recess is formed by a circular arc section, which is manufactured by the use of a round milling cutter with a constant cutting radius.
- the DE 10 2004 021 580 B3 describes a flat key with coding recesses with rectilinear sliding edges.
- the flanks of adjacent coding recesses merge into each other to form an acute angle.
- the opening angle of the two a coding recess forming sliding edges is about 106 °.
- the opening angle is preferably greater than 90 ° in order to keep the force acting in the horizontal direction when pulling out the key from the keyway low.
- flat sliding flanks have the disadvantage that immediately adjacent CodianssausEnglish aus can only have a relatively small difference in their depth of cut.
- the coding of a flat key is achieved by differently deeply cut sliding flanks.
- the sliding edges can meet at an intersection, as it is, for example, in the DE 10 2004 021 580 B3 the case is. But the sliding edges can also pass into a supporting flank, as it is in the DE 298 18 143 U1 the case is.
- a tumbler pin is sorted when inserting the key into the keyway of a lock cylinder.
- the tumbler pins have different lengths, wherein the incision depth of the associated Cod michellessausEnglishung is adapted to the length of the respective tumbler pin that the tumbler pins do not protrude with fully inserted key beyond the movement joint of the lock cylinder in a housing pin hole or mounted in the housing pin bore housing pins not in the Protruding core pin hole.
- the US2009 / 0071210 A1 describes a key which can be used as a tool, in which the key blade has glass-cutting properties and the key-breast has coding notches formed by flat flanks running obliquely to the key-insertion direction.
- the US 4,402,201 describes a key with a curly-edged key-breast and a rounded key-tip.
- the DE 103 04 152 A1 describes such a lock cylinder with associated key.
- the key has a tip portion flanked by two flank portions which enter the slot of a coupling member to couple the cylinder core with the closure member.
- a lock cylinder with associated key in which the key tip fulfills a coupling function, is also known from the DE 4112 564 A1 ,
- the key tip forming edge portion extends inclined to the insertion direction of the key shaft in the keyway.
- a remote from the key tip portion of this edge forms a sliding bevel, which acts upon insertion of the key in the keyway the heads of the tumbler pins to hineinzulverlagern the tumbler pins in the axial direction in their pin bores.
- the invention has for its object to improve the slip angle of the key tip closing technology.
- the sliding bevel runs flatter than the immediately adjacent flank section of the key tip.
- the angle of the sliding bevel and the cone angle of the tumbler pin are matched to one another such that the conical surface is acted upon by the sliding bevel substantially over its entire axial length.
- the sliding bevel thus acts on the head of the tumbler pin not only in the region of its tip or exclusively in the region of the transition region of the conical surface to the cylindrical shaft portion of the tumbler pin, but about the entire length of the cone. Instead of a punctiform contact, a linear contact takes place. Cone angle and angle of the slip slope do not have to agree 100%, as a certain tilt of the tumbler pin can be accepted.
- this tilting must not be so great that the tumbler pin canted in his pin bore.
- this sliding bevel can also have steeper or shallower sections. It is essential that the tumbler pin is acted upon in its acceleration phase, ie in the first movement phase, by a sliding bevel section, to which the conical surface can create a line.
- the locking device consisting of a lock cylinder and a matching key
- the lock cylinder has a cylinder core with a keyway for inserting the key and opening into the keyway pin bores in which pin bores tumbler pins are mounted, the head with a tip and a to the Forming tip subsequent conical surface, which engages in a CodleitersausEnglishung the key and is supported there with the tip of a portion of the wall of the Codierausnostilly, wherein the wall forms a first sliding edge on which the head of the tumbler before by pulling the key out of the Key channel caused axial displacement of the tumbler pin in the pin bore in a contact position is applied and slides in a first phase of movement when pulling out the key along, and then connect to the first sliding edge in a transition region forming second sliding flank forms, which relation relative to the first slide flank to the extending direction of the key is steeper and in which slides the head during withdrawal of the key along in a second movement phase.
- the dimensions of the conical surface adjoining a rounding of the tip and the first sliding flank are coordinated with one another such that the transition region is covered in the contact position of the conical surface.
- the two sliding flanks intersecting in a real or imaginary point, on which the head of the tumbler pin slides in a first movement phase when pulling out the key from the keyway, may have an opening angle which is relatively large, for example as in the prior art 106 ° is.
- a second sliding edge connects, which runs steeper.
- the two each associated with a coding recess second sliding edges may have an opening angle that is much smaller, for example. 90 °.
- the flat first sliding edge has only the task to overcome the static friction when moving the tumbler pin.
- the amount of lower sliding friction causes a smaller force component in the withdrawal direction, so that the relevant Gleitflankensteist can be greater.
- the range of the first, slightly inclined sliding edge is thus limited to the area in which the core pin is accelerated. This range may be less than the radius or diameter of the core pin.
- the transitional region of the two sliding flanks which can merge there to form an intersection, ie a kink, lies in the area of the conical surface. This covers the transition area.
- the sliding edges are substantially rectilinear. As a result, an optimal use of space is given.
- the cone angle is in the range of the opening angle of the second sliding flanks and is preferably slightly smaller than this opening angle.
- the production of Codianssaus traditions can be done with a side milling cutter.
- the side milling cutter has a V-shaped disk profile, wherein the two V-legs have portions of different pitch. The one with such Disc milling cutters with different depths are thus essentially the same design.
- the first sliding flanks always extend over the same extension section of the key shank.
- at least one tumbler pin has a conical surface whose cone angle is greater than the opening angle of the second sliding flank. This tumbler pin does not rest with its rounded tip on a supporting flank or first sliding flank.
- the key may be a flat key with a coded recess cut in the breast, as it is from the DE 10 2004 021 580 B3 is described.
- the key can also be a flat key with a milling cutter milled into the broadside Cod istsausEnglishept, as he basically in the DE 298 18 143 U1 is described. In both cases, it is possible that the tip-side rounding of the tumbler pin is supported on a support flank extending parallel to the extension direction of the key shank.
- the in Fig. 1 shown, belonging to the prior art key 2 has a key 22 and a subsequent to the crayon 22 key shank 21.
- the key shank 21 has a wide guide rib and a plurality of profile ribs.
- the key channel of the cylinder core of an associated lock cylinder has a corresponding cross-sectional profile.
- the key shank 21 has a total of six coding recesses 10, to each of which a core pin belongs, wherein the tip of the adjacent coding recess has the depth zero.
- the coding recesses are formed by V-shaped incisions, which merge sharp-edged into one another.
- FIGS. 2 to 7 illustrated inventive development of the in the Fig. 1 key shown also has V-shaped Codtechniksausappel traditions 10.
- the rounded tips 8 of the heads 7 are supported by core pins 6 from.
- the core pins 6 are also underlaid by platelets 23 and slidably mounted in core pin holes 5.
- the end faces of the plates 23 with the parting plane between the cylinder core 3 and bore of the lock cylinder housing 1. This prevents housing pins 25, each mounted in a housing bore 24 are, by the force of a tumbler spring 26, the separation plane crossing into the pin hole 5 protrude.
- the core pins 6 or, in the exemplary embodiment, the platelets 23 protrude into the housing bore 24.
- the cylinder core 3 can thus be rotated by means of the key.
- the key tip engages in a coupling, not shown, to rotate an unillustrated closing member for the purpose of actuating a lock.
- the Codianssausnaturalept 10 have a first sliding edge pair 12, which intersects in a vertex 12 '. It is essential that the first sliding flanks 12 are rectilinear.
- the exemplary embodiment is a real point of intersection 12 '.
- the first sliding flanks 12 can also intersect at an imaginary point of intersection if, for example, they pass into a supporting flank running parallel to the key member extension.
- the rounded tip 8 of the head 7 of the core pin 6 is supported on the two first sliding flanks 12.
- the rounding of the top 8 can also be supported on a supporting flank.
- the reference numeral 13, a kink is shown. This is a transition region in which the first sliding edge 12 merges into a second sliding edge 14, which has a greater pitch with respect to the extension direction of the key shank 21.
- the transition region 13 is overlapped by the conical surface 9 of the head 7.
- the relative to the direction of displacement of the core pin 6 axial distance of the transition region 13 to the tip 8 of the coding recess 10 held in the positioned Kernres 6 is less than the axial length of the head 7, resulting from the axial length of the tip 8 and the axial length of the conical surface composed.
- the distance of the transition region 13 from the center axis passing through the tip 8 of the core pin 6 positioned in the coding recess 10 is less than the radius of the cylindrical shaft portion of the core pin 6.
- the opening angle ⁇ of the two first sliding flanks 12 is approximately 106 °.
- the opening angle of the second sliding flanks 14 is about 90 °.
- the cone angle ⁇ of the conical surface 9 in the exemplary embodiment is about 86 °.
- the cone is designed in such a way that the diameter of its base surface, with which the cone section 9 adjoins the cylindrical shaft section of the core pin 6, is at least four times as large as the head diameter of the cone section 9, at which the rounding of the tip 8 follows.
- the diameter ratio is about six. The dimensions are in any case chosen so that the rounding of the tip 8 is supported on the first sliding surface 12 and the transition region 13 is in the region of the conical surface 9.
- the operation is the following: Is starting from the Fig. 3 drawn shown rest position of the key 2 to the left from the keyway, so the tip 8 slides first - as in the Fig. 4 is shown - on the flat extending first sliding edge 12 along.
- the static friction is overcome in this first movement phase and accelerates the core pin 6 together with the acted upon by him platelet 23 and housing pin 25 in the axial direction.
- This acceleration phase is followed by a second movement phase in which only the sliding friction of the tip 8 on the sliding flank is to be overcome. In this second movement phase, the tip 8 passes through the transition region 13 and slides along the second, steeper sliding surface 14.
- the Fig. 6 shows a core pin 6 inserted only in a slightly deep-cut CodtechniksausEnglishung 10th
- first sliding edge 12 is present, which merges with the formation of a pointed point in the second sliding edge 14 of an adjacent Codtechniksausnaturalung.
- the Fig. 7 shows a key with a notch geometry for forming a coding recess 10, as previously with reference to the FIGS. 3 to 5 has been described.
- a core pin 16 in the Cod istsausANSung 10 which has a conical surface 19 which has a cone angle ⁇ of 102 °.
- a second conical surface 20 which has a smaller cone angle of about 86 °.
- the head 17 of this core pin 16 abuts in the transition region 20 'on the second sliding edge 14. This core pin 16 is accelerated more than the other core pins when pulling out the key.
- FIGS. 8 and 9 show a flat key of the prior art, in which the Codianssaus Principle 11, 10 are formed by cup-shaped milled cuts in the key broadside.
- Such a key is, for example, from the above-mentioned DE 298 18 143 U1 described.
- Fig. 10 it can be seen, the rounded tips 8 of the tumbler pins 6 are supported on supporting flanks 11.
- the support flanks 11 form the bottom of the Codianosaus traditions 10.
- the support flanks 11 have a circular contour and are limited by running on an inner cone surface first wall zone. This first wall zone forms two opposing first sliding flanks 12.
- the opening angle ⁇ of the first sliding flanks 12 forming inner cone is in the embodiment about 106 °.
- the first inner cone surface merges into a second inner cone surface.
- the second inner cone surface forms two opposing second sliding edges 14 off.
- the inner cone angle ⁇ of the second inner cone surface is about 90 °, so that a transition zone 13 is formed in the form of a bending line.
- the transition region 13 has a distance in the axial direction of the core pin 6, which is smaller than the distance between the tip 8 and base surface of the cone 9 of the head 7 relative to the support flank 11.
- the second sliding flank 14 formed by the second inner cone merges into a broadside surface of the key shank 21.
- the cone angle of the conical surface 9 is also about 86 °.
- the diameter of the base surface of the cone 9 is here more than twice as large as the diameter of the transition region of the cone surface in the top eighth
- the rounded tip 8 touches the first sliding edge 12.
- the transition region 13 is thereby overlapped with a distance from the conical surface 9. Further extraction of the key 2 from the key channel 4 leads to the in Fig. 12 illustrated state of motion.
- the core pin 6 is accelerated by sliding along the rounded tip 8 at the weaker rising first sliding edge 12. Subsequently, the rounded tip 8 passes the transition region 13 and reaches the in Fig. 13 shown second movement phase in which the tip 8 slides on the second, more inclined sliding edge 14 along.
- the Fig. 14 shows a inventively designed tip region of a flat key.
- a sliding bevel 27, on which a conical surface 9 of a core pin 6 slides under line installation when the key 2 is pushed into the keyway 4, has a pitch angle ⁇ with respect to the direction of movement of the core pin 6 of approximately 45 °.
- a flank portion 29 of the key tip 28 connects, which is inclined relative to the direction of movement S of the core pin 6 by an angle ⁇ of about 37 °. This results in a shortened key tip, but which is nevertheless able to couple the key with a closure member by immersing in a coupling slot.
- the embodiment shown in the drawings shows a 31.5 mm long cylinder with six pins. Alternatives are 27.5 mm long and have five pens or are longer and have seven or more pens.
Landscapes
- Lock And Its Accessories (AREA)
- Adornments (AREA)
Abstract
Description
Die Erfindung betrifft eine Schließeinrichtung gemäß Gattungsbegriff des Anspruches 1 und einen Schlüssel für eine derartige Schließeinrichtung.The invention relates to a locking device according to the preamble of
Die
Eine Codierungsausnehmung mit knickstellenfreiem Verlauf einer Abschnitte unterschiedlicher Steigung aufweisenden Gleitflanke beschreibt auch die
Die
Die
Die
Die
Der Erfindung liegt die Aufgabe zugrunde, die Gleitschräge der Schlüsselspitze schließtechnisch zu verbessern.The invention has for its object to improve the slip angle of the key tip closing technology.
Gelöst wird die Aufgabe durch die im Anspruch 1 angegebene Schließeinrichtung und den im Anspruch 11 angegebenen Schlüssel.The problem is solved by the locking device specified in
Die Unteransprüche stellen vorteilhafte Weiterbildungen dar.The dependent claims represent advantageous developments.
Erfindungsgemäß ist vorgesehen, dass die Gleitschräge flacher verläuft als der sich unmittelbar daran anschließende Flankenabschnitt der Schlüsselspitze. Der Winkel der Gleitschräge und der Konuswinkel des Zuhaltungsstiftes sind derart aufeinander abgestimmt, dass die Konusfläche im Wesentlichen über ihre gesamte axiale Länge von der Gleitschräge beaufschlagt wird. Die Gleitschräge beaufschlagt also den Kopf des Zuhaltungsstiftes nicht ausschließlich im Bereich seiner Spitze oder ausschließlich im Bereich des Übergangsbereiches der Konusfläche zum zylindrischen Schaftabschnitt des Zuhaltungsstiftes, sondern etwa über die gesamte Länge des Konus. Anstelle einer punktförmigen Berührung findet eine linienförmige Berührung statt. Konuswinkel und Winkel der Gleitschräge müssen dabei nicht zu 100 % übereinstimmen, da eine gewisse Verkippung des Zuhaltungsstiftes in Kauf genommen werden kann. Diese Verkippung darf allerdings nicht so groß werden, dass sich der Zuhaltungsstift in seiner Stiftbohrung verkantet. Diese Gleitschräge kann darüber hinaus auch steiler oder flacher verlaufende Abschnitte aufweisen. Wesentlich ist, dass der Zuhaltungsstift in seiner Beschleunigungsphase, also in der ersten Bewegungsphase, von einem Gleitschrägen-Abschnitt beaufschlagt wird, an den sich die Konusfläche linienförmig anlegen kann. Die Schließeinrichtung bestehend aus einem Schließzylinder und einem passenden Schlüssel, wobei der Schließzylinder einen Zylinderkern mit einem Schlüsselkanal zum Einstecken des Schlüssels und mit in den Schlüsselkanal mündenden Stiftbohrungen aufweist, in welchen Stiftbohrungen Zuhaltungsstifte gelagert sind, die einen Kopf mit einer Spitze und einer sich an die Spitze anschließenden Konusfläche ausbilden, der in eine Codierungsausnehmung des Schlüssels eingreift und sich dort mit der Spitze an einem Abschnitt der Wandung der Codierausnehmung abstützt, wobei die Wandung eine erste Gleitflanke ausbildet, an welcher der Kopf des Zuhaltungsstiftes vor der durch das Herausziehen des Schlüssels aus dem Schlüsselkanal bewirkten Axialverlagerung des Zuhaltungsstiftes in der Stiftbohrung in einer Anlagestellung anliegt und in einer ersten Bewegungsphase beim Herausziehen des Schlüssels entlang gleitet, und eine sich an die erste Gleitflanke in einem Übergangsbereich anschließende zweite Gleitflanke ausbildet, welche gegenüber der ersten Gleitflanke bezogen auf die Erstreckungsrichtung des Schlüssels steiler verläuft und an welcher der Kopf in einer zweiten Bewegungsphase beim Herausziehen des Schlüssels entlang gleitet.According to the invention, it is provided that the sliding bevel runs flatter than the immediately adjacent flank section of the key tip. The angle of the sliding bevel and the cone angle of the tumbler pin are matched to one another such that the conical surface is acted upon by the sliding bevel substantially over its entire axial length. The sliding bevel thus acts on the head of the tumbler pin not only in the region of its tip or exclusively in the region of the transition region of the conical surface to the cylindrical shaft portion of the tumbler pin, but about the entire length of the cone. Instead of a punctiform contact, a linear contact takes place. Cone angle and angle of the slip slope do not have to agree 100%, as a certain tilt of the tumbler pin can be accepted. However, this tilting must not be so great that the tumbler pin canted in his pin bore. In addition, this sliding bevel can also have steeper or shallower sections. It is essential that the tumbler pin is acted upon in its acceleration phase, ie in the first movement phase, by a sliding bevel section, to which the conical surface can create a line. The locking device consisting of a lock cylinder and a matching key, the lock cylinder has a cylinder core with a keyway for inserting the key and opening into the keyway pin bores in which pin bores tumbler pins are mounted, the head with a tip and a to the Forming tip subsequent conical surface, which engages in a Codierungsausnehmung the key and is supported there with the tip of a portion of the wall of the Codierausnehmung, wherein the wall forms a first sliding edge on which the head of the tumbler before by pulling the key out of the Key channel caused axial displacement of the tumbler pin in the pin bore in a contact position is applied and slides in a first phase of movement when pulling out the key along, and then connect to the first sliding edge in a transition region forming second sliding flank forms, which relation relative to the first slide flank to the extending direction of the key is steeper and in which slides the head during withdrawal of the key along in a second movement phase.
Die Maße der sich an eine Rundung der Spitze anschließenden Konusfläche und der ersten Gleitflanke sind derart aufeinander abgestimmt, dass der Übergangsbereich in der Anlagestellung von der Konusfläche überdeckt wird. Die beiden sich in einem realen oder gedachten Punkt schneidenden Gleitflanken, an denen der Kopf des Zuhaltungsstiftes in einer ersten Bewegungsphase beim Herausziehen des Schlüssels aus dem Schlüsselkanal entlang gleitet, können einen Öffnungswinkel besitzen, der relativ groß ist, bspw. wie beim Stand der Technik 106° beträgt. An dieser ersten Gleitflanke gleitet die gerundete Spitze des Zuhaltungsstiftes entlang, wenn der Zuhaltungsstift von einer Ruheposition durch Beschleunigen in Bewegung gesetzt wird. An diese Beschleunigungsflanke schließt sich eine zweite Gleitflanke an, die steiler verläuft. Die beiden jeweils einer Codierungsaussparung zugeordneten zweiten Gleitflanken können einen Öffnungswinkel besitzen, der wesentlich kleiner ist, bspw. 90° beträgt. Die flach verlaufende erste Gleitflanke hat lediglich die Aufgabe, die Haftreibung beim in Bewegung Versetzen des Zuhaltungsstiftes zu überwinden. Die vom Betrag her geringere Gleitreibung verursacht eine geringere Kraftkomponente in Abzugsrichtung, so dass die diesbezügliche Gleitflankensteigung größer sein kann. Der Bereich der ersten, schwach geneigten Gleitflanke ist somit auf den Bereich beschränkt, in dem der Kernstift beschleunigt wird. Dieser Bereich kann geringer sein als der Radius bzw. der Durchmesser des Kernstiftes. Mit der erfindungsgemäßen Ausgestaltung der beiden Gleitflächen wird somit ein "Sanftanlauf" der Kernstifte erreicht. Der Übergangsbereich der beiden Gleitflanken, die dort unter Ausbildung eines Schnittpunktes, also einer Knickstelle, ineinander übergehen können, liegt im Bereich der Konusfläche. Diese überdeckt den Übergangsbereich. Die Gleitflanken verlaufen im Wesentlichen geradlinig. Hierdurch ist eine optimale Raumausnutzung gegeben. Der Konuswinkel liegt im Bereich des Öffnungswinkels der zweiten Gleitflanken und ist bevorzugt geringfügig kleiner als dieser Öffnungswinkel. Die Fertigung der Codierungsausnehmungen kann mit einem Scheibenfräser erfolgen. Der Scheibenfräser besitzt ein V-förmiges Scheibenprofil, wobei die beiden V-Schenkel Abschnitte unterschiedlicher Steigung aufweisen. Die mit einem derartigen Scheibenfräser unterschiedlich tief eingeschnittenen Codierungsausnehmungen sind somit im Wesentlichen gleich gestaltet. Die ersten Gleitflanken erstrecken sich immer über denselben Erstreckungsabschnitt des Schlüsselschaftes. In einer Weiterbildung der Erfindung ist vorgesehen, dass zumindest ein Zuhaltungsstift eine Konusfläche aufweist, deren Konuswinkel größer ist als der Öffnungswinkel der zweiten Gleitflanke. Dieser Zuhaltungsstift liegt nicht mit seiner gerundeten Spitze an einer Stützflanke bzw. ersten Gleitflanke an. Vielmehr liegt der Kopf dieses Zuhaltungsstiftes mit einem Übergangsbereich zwischen einer zweiten Konusfläche, die einen geringeren Öffnungswinkel aufweist, und der sich an die Spitze anschließenden Konusfläche an der zweiten Gleitflanke an. Dies geht zwar einher mit größeren Beschleunigungskräften. Die unterschiedlichen Konuswinkel erhöhen aber den Schutz gegen Schlagpicken. Der Schlüssel kann ein Flachschlüssel mit einer brustseitig eingeschnittenen Codierungsausnehmung sein, wie er von der
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand beigefügter Zeichnungen erläutert. Es zeigen:
- Fig. 1
- einen Schlüssel gemäß Stand der Technik mit angedeutetem Zuhaltungsstift,
- Fig. 2
- einen Längsquerschnitt durch eine Hälfte eines Doppelschließzylinders, bei dem in den Schlüsselkanal des Zylinderkerns ein erfindungsgemäßer Schlüssel eingesteckt ist,
- Fig. 3
- vergrößert den Ausschnitt III in
Fig. 2 , wobei die gerundete Spitze 8 desZuhaltungsstiftes 6 imScheitelbereich einer Codierausnehmung 10 abgestützt ist, - Fig. 4
- eine Darstellung gemäß
Fig. 3 bei einer ersten Bewegungsphase beim Herausziehen des Schlüssels aus dem Schlüsselkanal, wobei der Zuhaltungsstift 6 durch Entlanggleiten an der ersten Gleitflanke 12 beschleunigt wird, - Fig. 5
- eine Folgedarstellung, wobei der Zuhaltungsstift 6 an der steiler geneigten zweiten Gleitfläche 14 entlang gleitet,
- Fig. 6
- eine Darstellung gemäß
Fig. 3 ,wobei ein Zuhaltungsstift 6 anden ersten Gleitflächen 12 einer nur gering tief eingeschnittenen Codierungsausnehmung 10 anliegt, - Fig. 7
- den Ausschnitt VII in
Fig. 2 vergrößert, - Fig. 8
- einen Flachschlüssel mit Breitseitenausnehmungen gemäß Stand der Technik,
- Fig. 9
- einen Querschnitt gemäß der Linie IX - IX in
Fig. 8 , - Fig. 10
- einen vergrößerten Querschnitt durch zwei benachbarte Codierungsausnehmungen an einem erfindungsgemäß weitergebildeten Schlüssel gemäß
Figuren 8 und 9 inRuhestellung der Zuhaltungsstifte 6, - Fig. 11
- eine Darstellung gemäß
Fig. 10 vor einer ersten Bewegungsphase, wobei der Schlüssel lediglich geringfügig so weit aus dem Schlüsselkanal herausgezogen ist, dass diegerundete Spitze 8 desKopfes 7 an einer ersten Gleitflanke 12 anliegt, - Fig. 12
- eine Folgedarstellung gemäß
Fig. 11 , wobei der Schlüssel weiter aus dem Schlüsselkanal herausgezogen ist, so dass die gerundete Spitze des Zuhaltungsstiftes an der ersten Gleitflanke 12 entlang gleitet, - Fig. 13
- eine Darstellung gemäß
Fig. 12 , wobei der Zuhaltungsstift in einer zweiten Bewegungsphase an der steileren zweiten Gleitflanke 14 entlang gleitet, - Fig. 14
- eine erfindungsgemäße Ausgestaltung einer Schlüsselspitze.
- Fig. 1
- a key according to the prior art with indicated tumbler pin,
- Fig. 2
- a longitudinal cross-section through one half of a double-locking cylinder, in which a key according to the invention is inserted into the key channel of the cylinder core,
- Fig. 3
- enlarges the section III in
Fig. 2 wherein therounded tip 8 of thetumbler pin 6 is supported in the apex region of aCodierausnehmung 10, - Fig. 4
- a representation according to
Fig. 3 at a first movement phase when pulling out the key from the keyway, wherein thetumbler pin 6 is accelerated by sliding along the first slidingedge 12, - Fig. 5
- a following illustration, wherein the
tumbler pin 6 slides along the steeper inclined second slidingsurface 14, - Fig. 6
- a representation according to
Fig. 3 in which atumbler pin 6 rests against the first slidingsurfaces 12 of acoding recess 10 that is only slightly deeply cut, - Fig. 7
- the section VII in
Fig. 2 increased - Fig. 8
- a flat key with Breitseitenausnehmungen according to the prior art,
- Fig. 9
- a cross section along the line IX - IX in
Fig. 8 . - Fig. 10
- an enlarged cross section through two adjacent Codierungsausnehmungen on a further developed according to the invention according to key
FIGS. 8 and 9 in the rest position of the tumbler pins 6, - Fig. 11
- a representation according to
Fig. 10 before a first movement phase, wherein the key is only slightly pulled out of the keyway so far that therounded tip 8 of thehead 7 abuts against a first slidingedge 12, - Fig. 12
- a follow-up according to
Fig. 11 with the key further pulled out of the keyway such that the rounded tip of the tumbler pin slides along the first slidingedge 12, - Fig. 13
- a representation according to
Fig. 12 wherein the tumbler pin slides in a second phase of movement along the steeper second slidingedge 14, - Fig. 14
- an inventive embodiment of a key tip.
Der in
Die in den
Die Codierungsausnehmungen 10 besitzen ein erstes Gleitflankenpaar 12, welches sich in einem Scheitelpunkt 12' schneidet. Wesentlich ist, dass die ersten Gleitflanken 12 geradlinig verlaufen. Im Ausführungsbeispiel handelt es sich um einen realen Schnittpunkt 12'. Die ersten Gleitflanken 12 können sich aber auch in einem gedachten Schnittpunkt schneiden, wenn sie bspw. zuvor in eine parallel zur Schlüsselschafterstreckung verlaufende Stützflanke übergehen. Im Ausführungsbeispiel stützt sich die gerundete Spitze 8 des Kopfes 7 des Kernstiftes 6 an den beiden ersten Gleitflanken 12 ab. In einer nicht dargestellten Variante kann sich die Rundung der Spitze 8 aber auch an einer Stützflanke abstützen.The
Mit der Bezugsziffer 13 ist eine Knickstelle dargestellt. Es handelt sich hier um einen Übergangsbereich, in dem die erste Gleitflanke 12 in eine zweite Gleitflanke 14 übergeht, die eine größere Steigung in Bezug auf die Erstreckungsrichtung des Schlüsselschaftes 21 besitzt. Der Übergangsbereich 13 wird von der Konusfläche 9 des Kopfes 7 übergriffen.The
Der bezogen auf die Verlagerungsrichtung des Kernstiftes 6 axiale Abstand des Übergangsbereiches 13 zur Spitze 8 des in der Codierungsausnehmung 10 positioniert gehaltenen Kernstiftes 6 ist geringer als die axiale Länge des Kopfes 7, die sich aus der axialen Länge der Spitze 8 und der axialen Länge der Konusfläche zusammensetzt. Der Abstand des Übergangsbereiches 13 von der durch die Spitze 8 gehenden Zentrumsachse des in der Codierausnehmung 10 positionierten Kernstiftes 6 ist geringer als der Radius des zylindrischen Schaftabschnittes des Kernstiftes 6. Infolge dessen ist das Abstandsmaß zweier sich gegenüberliegender Übergangsbereiche 13 einer Codierausnehmung 10, in der sich die Spitze 8 gleichzeitig an zwei ersten Gleitflanken 12 abstützt, auch geringer als der Durchmesser des Kernstiftes 6.The relative to the direction of displacement of the
Im Ausführungsbeispiel beträgt der Öffnungswinkel α der beiden ersten Gleitflanken 12 etwa 106°. Der Öffnungswinkel der zweiten Gleitflanken 14 beträgt etwa 90°. Der Konuswinkel γ der Konusfläche 9 beträgt im Ausführungsbeispiel etwa 86°. Der Konus ist derart gestaltet, dass der Durchmesser seiner Basisfläche, mit der sich der Konusabschnitt 9 an den zylindrischen Schaftabschnitt des Kernstiftes 6 anschließt, mindestens viermal so groß ist wie der Kopfdurchmesser des Konusabschnittes 9, an dem sich die Rundung der Spitze 8 anschließt. Im Ausführungsbeispiel beträgt das Durchmesserverhältnis etwa Sechs. Die Maße sind jedenfalls so gewählt, dass sich die Rundung der Spitze 8 an der ersten Gleitfläche 12 abstützt und der Übergangsbereich 13 im Bereich der Konusfläche 9 liegt.In the exemplary embodiment, the opening angle α of the two first sliding
Die Funktionsweise ist die Folgende: Wird ausgehend von der aus
Die
Die
Durch eine abgestufte Anpassung der Kernstiftwinkel γ an die Einschnittwinkel α, β wird ein sanftes Anheben der Kernstifte mit unterschiedlichen Beschleunigungen erreicht. Der wechselnde Einsatz von Kernstiften mit durchgehenden bzw. abgestuften Konusflächen 19, 20 führt zu verschiedenen Beschleunigungsmodellen. Die abgestufte Einschnittform des Schlüssels in Kombination mit den Stiftwinkeln ergibt einen erhöhten Bedienungskomfort beim Einführen und Abziehen des Schlüssels. Durch die unterschiedlichen Beschleunigungsvarianten ergibt sich ein erhöhter Schutz gegen Schlagpicken.By a graded adaptation of the core pin angle γ to the incision angle α, β, a gentle lifting of the core pins with different accelerations is achieved. The alternating use of core pins with continuous or stepped
Die
Wie der
Die erste Innenkonusfläche geht in eine zweite Innenkonusfläche über. Die zweite Innenkonusfläche bildet zwei sich gegenüberliegende zweite Gleitflanken 14 aus. Der Innenkonuswinkel β der zweiten Innenkonusfläche beträgt etwa 90°, so dass sich eine Übergangszone 13 ausbildet in Form einer Knicklinie. Der Übergangsbereich 13 besitzt gegenüber der Stützflanke 11 einen Abstand in Achsrichtung des Kernstiftes 6, welcher geringer ist als der Abstand zwischen Spitze 8 und Basisfläche des Konus 9 des Kopfes 7.The first inner cone surface merges into a second inner cone surface. The second inner cone surface forms two opposing second sliding
Die vom zweiten Innenkonus ausgebildete zweite Gleitflanke 14 geht in eine Breitseitenfläche des Schlüsselschaftes 21 über.The second sliding
Der Konuswinkel der Konusfläche 9 beträgt auch hier etwa 86°. Der Durchmesser der Basisfläche des Konus 9 ist hier mehr als doppelt so groß wie der Durchmesser des Übergangsbereiches der Konusfläche in die Spitze 8.The cone angle of the
Wird der Schlüssel 2, wie in der
Die
An diese Gleitschräge 27 schließt sich ein Flankenabschnitt 29 der Schlüsselspitze 28 an, der bezogen auf die Bewegungsrichtung S des Kernstiftes 6 um einen Winkel Δ von etwa 37° geneigt ist. Dies führt zu einer verkürzten Schlüsselspitze, die aber gleichwohl in der Lage ist, den Schlüssel mit einem Schließglied zu kuppeln, indem sie in einen Kupplungsschlitz eintaucht.At this sliding
Das in den Zeichnungen dargestellte Ausführungsbeispiel zeigt einen 31,5 mm langen Zylinder mit sechs Stiften. Alternativen dazu sind 27,5 mm lang und besitzen fünf Stifte oder sind länger und besitzen sieben oder mehr Stifte.The embodiment shown in the drawings shows a 31.5 mm long cylinder with six pins. Alternatives are 27.5 mm long and have five pens or are longer and have seven or more pens.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009025993A DE102009025993B3 (en) | 2009-06-18 | 2009-06-18 | Locking device and key for a locking device |
EP10164723.8A EP2264264B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
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Application Number | Title | Priority Date | Filing Date |
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EP10164723.8A Division-Into EP2264264B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
EP10164723.8A Division EP2264264B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
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EP2746500A1 true EP2746500A1 (en) | 2014-06-25 |
EP2746500B1 EP2746500B1 (en) | 2016-04-27 |
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Application Number | Title | Priority Date | Filing Date |
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EP14159332.7A Active EP2746500B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
EP10164723.8A Active EP2264264B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
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EP10164723.8A Active EP2264264B1 (en) | 2009-06-18 | 2010-06-02 | Locking device and key for a locking device |
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US (1) | US8266937B2 (en) |
EP (2) | EP2746500B1 (en) |
CA (1) | CA2708015C (en) |
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US20110214462A1 (en) * | 2010-03-02 | 2011-09-08 | Stanton Concepts Inc. | Anti-Bump Top Pin for Pin Tumbler Locks |
US8720241B1 (en) * | 2013-05-22 | 2014-05-13 | Winloc Ag | Cylinder lock and key with side bar |
PL405477A1 (en) * | 2013-09-30 | 2015-04-13 | Artur Litwiński | Lock key |
DE102015106198A1 (en) | 2015-04-22 | 2016-10-27 | C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik | closing device |
SI3219882T1 (en) * | 2016-03-16 | 2018-11-30 | Assa Ab | Cylinder lock and key system |
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DE7035739U (en) * | 1970-09-26 | 1971-01-07 | Voss Kg J | LOCKING CYLINDER WITH KEY. |
US4402201A (en) | 1980-11-14 | 1983-09-06 | Clarence Nokes | Snap-off key |
DE4112564A1 (en) | 1991-04-17 | 1992-10-22 | Dom Sicherheitstechnik | LOCKING CYLINDER |
DE9409290U1 (en) * | 1994-06-08 | 1994-09-22 | Knauer, Helga, 91054 Erlangen | Locking pin system for expanding the locking variation options |
DE29818143U1 (en) | 1998-10-10 | 2000-02-17 | Bks Gmbh | Security key |
DE10000194A1 (en) * | 1999-05-08 | 2000-11-09 | Schulte Zylinderschl Gmbh | Key and lock cylinder combination has a conical opening leading to the lock barrel and with a shaped tip for the key to guide the key into the lock from a tilted position |
DE10304152A1 (en) | 2003-02-03 | 2004-10-07 | Wilka Schließtechnik GmbH | Double lock cylinder |
EP1577469A2 (en) * | 2004-03-19 | 2005-09-21 | Aug. Winkhaus GmbH & Co. KG | Key |
DE102004021580B3 (en) | 2004-05-03 | 2005-11-10 | Wilka Schließtechnik GmbH | From key and lock cylinder existing closing device |
DE202006005188U1 (en) | 2006-02-02 | 2006-06-14 | EVVA-WERK SPEZIALERZEUGUNG von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. KG | Cylinder lock and flat key |
US20090071210A1 (en) | 2007-09-19 | 2009-03-19 | Harold Teague | Combination key and glass scorer |
Also Published As
Publication number | Publication date |
---|---|
EP2264264A3 (en) | 2014-03-19 |
CA2708015C (en) | 2013-01-15 |
EP2264264B1 (en) | 2016-05-18 |
CA2708015A1 (en) | 2010-12-18 |
EP2264264A2 (en) | 2010-12-22 |
PL2746500T3 (en) | 2016-09-30 |
DE102009025993B3 (en) | 2011-01-20 |
ES2573100T3 (en) | 2016-06-06 |
DE202010005352U1 (en) | 2010-08-05 |
US8266937B2 (en) | 2012-09-18 |
EP2746500B1 (en) | 2016-04-27 |
US20100319422A1 (en) | 2010-12-23 |
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