EP4352330A1 - Clé plate comprenant un codage de surface et serrure à cylindre - Google Patents

Clé plate comprenant un codage de surface et serrure à cylindre

Info

Publication number
EP4352330A1
EP4352330A1 EP22729410.5A EP22729410A EP4352330A1 EP 4352330 A1 EP4352330 A1 EP 4352330A1 EP 22729410 A EP22729410 A EP 22729410A EP 4352330 A1 EP4352330 A1 EP 4352330A1
Authority
EP
European Patent Office
Prior art keywords
key
flat key
coding
cylinder lock
face
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.)
Pending
Application number
EP22729410.5A
Other languages
German (de)
English (en)
Inventor
Michael Riesel
Florian Oberleitner-Leeb
Markus OTTERSBÖCK
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.)
EVVA Sicherheitstechnologie GmbH
Original Assignee
EVVA Sicherheitstechnologie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EVVA Sicherheitstechnologie GmbH filed Critical EVVA Sicherheitstechnologie GmbH
Publication of EP4352330A1 publication Critical patent/EP4352330A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/06—Lock wards
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/0052—Rectangular flat keys
    • E05B19/0058—Rectangular flat keys with key bits on at least one wide side surface of the key
    • E05B19/0064—Rectangular flat keys with key bits on at least one wide side surface of the key and with additional key bits on at least one narrow side edge of the key
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0023—Key profiles characterized by variation of the contact surface between the key and the tumbler pins or plates
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/10—Coupling devices for the two halves of double cylinder locks, e.g. devices for coupling the rotor with the locking cam

Definitions

  • the invention relates to a flat key with a surface coding and a cylinder lock for receiving such a flat key.
  • Flat keys with a key bow and a key shank extending along a key longitudinal axis with a key tip are known from the prior art, in which codings are arranged in the area of the key tip.
  • DE 202016 105750 U1 shows a flat key and a corresponding cylinder lock, the flat key being designed with a torsion-shaped twist in the area of the key tip, and profile elements for coding being arranged in the torsion section of the key tip.
  • a coupling element is provided in the matching cylinder lock, which scans these profile elements at the tip of the key.
  • a problem with such constructions is that with modern high-resolution cameras and appropriately equipped copying machines, even torsionally twisted profile elements in the area of the key tip can be copied, which makes it possible to create unauthorized key copies.
  • One object of the present invention is to solve this problem and to create a flat key and a matching cylinder lock which is as difficult as possible to copy, yet can be manufactured easily and offers additional variation options for coding.
  • a flat key according to the invention for a cylinder lock comprises a key bow and a key shank extending essentially parallel to a longitudinal axis L of the key.
  • the longitudinal axis L of the key runs essentially parallel to the direction in which the key is inserted into an associated cylinder lock.
  • the longitudinal axis L of the key can coincide with the axis of rotation D of the cylinder core in an associated cylinder lock.
  • the key shank has a key tip, with at least one area coding being arranged on the end face of the key tip.
  • the surface code is designed in such a way that it can be scanned in a suitable cylinder lock.
  • the surface coding can have an essentially non-linear course at least partially along a spatial axis x, y or z of a Cartesian coordinate system.
  • a cross section of the surface coding along one of these spatial axes would thus have a non-linear profile, for example in the form of a one-dimensional sinusoidal coding of the tip of the key.
  • the area coding can also have an essentially non-linear profile at least partially along two spatial axes x and y, y and z, or x and z of a Cartesian coordinate system.
  • Cross sections of the surface coding along two orthogonal spatial axes would thus have a non-linear course, for example in the form of a two-dimensional sinusoidal coding of the tip of the key.
  • the surface coding can also have an essentially non-linear course at least partially along all three spatial axes x, y and z of a Cartesian coordinate system.
  • Cross sections of the area coding would thus have a non-linear progression, at least in part, along all three orthogonal spatial axes. This could be realized, for example, by integrating spherical coding elements in sections into the area coding.
  • the area coding can also have linear and non-linear parts.
  • part of 10% to 90%, possibly also 30% to 70%, in particular 50%, of the area coding can be linear, and the remaining part can be non-linear in one of the ways described above.
  • the area coding can run over part of the face or over the entire face.
  • a part of 10% to 90%, possibly also 30% to 70%, in particular 50%, of the end face can preferably be affected by the area coding.
  • the surface coding is arranged on the end face of the tip of the key, it is much more difficult to position photographic images in comparison to conventional coding on the side surfaces.
  • conventional tools are generally not capable of generating area codes on the face of the key tip. This results in technical copy protection for a key according to the invention.
  • the different configurations of the area coding with regard to their position and their angle allow further possible variations for corresponding key-lock combinations.
  • At least one first surface code for querying in the cylinder lock is arranged on the face of the key tip, and at least one second surface code for querying in the cylinder lock is arranged on the face of the key tip.
  • the area codes can essentially be congruent and rotated by an angle of about 180” with respect to the longitudinal axis L of the key, so that the flat key can also be used as a reversible key.
  • the area codes are arranged predominantly or exclusively on the end face of the key tip.
  • the surface codes can also extend from the front side to one or more side surfaces, but they are mostly located on the front side, so that the front side has to be scanned in the cylinder lock.
  • the surface codes are formed in the form of recesses with scanning surfaces on the end face of the key tip, the scanning surfaces at least partially corresponding to the lateral surfaces of a rotating body with an axis of rotation R and are preferably designed as millings.
  • a recess can have a complex three-dimensional shape.
  • the ideal body of revolution can in particular be the tool for forming the area codes. However, this tool is not part of a flat key according to the invention.
  • the body of revolution can have an analytically describable cross-sectional geometry in one, two or all three spatial axes.
  • the body of revolution is essentially a sphere, a cylinder, a cone, a truncated cone or an ellipsoid with an axis of rotation R.
  • the axis of rotation R is inclined at an angle to the longitudinal axis L of the key, the angle being approximately 45° to 90°, preferably approximately 75°.
  • the inclination can be designed in such a way that the recess tapers in the direction of the key bow towards the key tip.
  • the axis of rotation R is inclined at an angle to a transverse plane E of the flat key, the angle being approximately 45° to 90°, preferably approximately 85°.
  • the inclination can be directed outwards from the longitudinal axis L of the key, so that the recess tapers in the direction from the side surface to the longitudinal axis L of the key.
  • the axis of rotation R is arranged essentially along a transverse plane E of the flat key offset by a distance from the longitudinal axis L of the key, the distance preferably being about 1/10 to about 1/4 of the width of the key shank.
  • the area codes overlap in sections, preferably in the area of the longitudinal axis of the key.
  • a preferably spatially curved, for example S-shaped, contour line is formed on the end face of the key tip between the surface codes.
  • the contour line can also be formed by the overlapping of the area codes.
  • At least one additional coding with a further scanning surface is provided on the end face of the key tip, the shape of which may differ from the scanning surface of the surface coding.
  • the additional coding can run over a part of the end face. A portion of 10% to 90%, optionally also 30% to 70%, in particular 50%, of the end face can preferably be affected by the additional coding.
  • the additional coding at least partially overlaps the area coding.
  • the additional coding can also have an essentially non-linear course at least partially along one, two or three spatial axes.
  • the additional coding can also have a scanning surface which at least partially corresponds to the lateral surface of an ideal rotating body and can preferably be designed as a milling.
  • the additional coding has a torsion shape.
  • at least one first surface code and at least one first additional code for querying in the cylinder lock can be arranged on the front side of the key tip, and at least one second surface code and at least one second additional code for querying in the cylinder lock are arranged on the front side of the key tip. It can be provided that both the surface codes and the additional codes are essentially congruent and rotated by an angle of about 180” with respect to the longitudinal axis of the key, so that the flat key can also be used as a reversible key.
  • the invention also relates to a cylinder lock with a key channel for accommodating a flat key, which is designed to scan the area code and possibly also the additional code of the flat key.
  • a cylinder lock comprises a possibly multi-part coupling arrangement which can be rotated about the axis of rotation D of the cylinder core and a locking lug.
  • the cylinder lock is designed to transmit a rotation of the cylinder core about the axis of rotation D to the locking lug when an authorized flat key is inserted.
  • the clutch arrangement is designed to transmit a rotation of the cylinder core about the axis of rotation D to the locking lug when an authorized flat key is inserted.
  • the coupling arrangement can be displaceable in the longitudinal direction, preferably linearly, along the axis of rotation D, and in a release position it can be positively connected to the locking lug (lock can be actuated), whereas in a locking position it can not be connected to the locking lug (lock can not be actuated).
  • the release position and the locked position differ in the longitudinal position of the clutch arrangement along the axis of rotation D.
  • the coupling arrangement is designed for form-fitting engagement in the area codes and optionally also in the additional codes on the face of the flat key.
  • an authorized key can directly bring the clutch arrangement from the locked position into the released position by longitudinal displacement.
  • an adapter is provided between the cylinder core and the clutch arrangement, which adapter can be displaced essentially along or parallel to the axis of rotation D, the adapter having a contour on the side facing away from the key channel for engaging in the clutch arrangement having.
  • the adapter engages in the codes on the tip of the key and is moved by an authorized key in such a way that it in turn moves the coupling into the release position and thus enables a positive connection between the cylinder core and the locking lug. If the key is not authorized, the adapter does not completely engage in the coding, so that the coupling arrangement remains in the blocking position and no form-fitting connection can arise between the cylinder core and the locking lug.
  • the adapter has at least one scanning element for engaging in the surface coding, the surface shape of the scanning element preferably corresponding to the scanning surface of the surface coding.
  • the shape of the scanning element can at least partially correspond to that body of revolution that was used to create the surface or additional coding.
  • the adapter has several sensing elements for engaging in the area codes and optionally additional codes on the face of the flat key, the surface shape of the sensing elements preferably corresponding to the sensing areas of the area codes and optionally the additional codes.
  • the invention also relates to a locking system comprising one or more flat keys according to the invention and one or more cylinder locks according to the invention.
  • figs 1a-1b show an embodiment of a flat key according to the invention in a schematic three-dimensional representation
  • figs 2a - 2c show this embodiment in a schematic view from above and from the front as well as a body of revolution with a cross-section that can be described analytically;
  • FIG. 3 shows an embodiment of a cylinder lock according to the invention in an exploded view
  • figs 4a-4b show schematic three-dimensional representations of the interaction of a flat key according to the invention with a cylinder lock according to the invention
  • FIG. 5 shows an embodiment of a locking system according to the invention with a flat key according to the invention and a cylinder lock according to the invention.
  • FIG. 1a shows an embodiment of a flat key 1 according to the invention in a schematic three-dimensional representation.
  • the flat key 1 is provided in a conventional form with a key bow 2 and a key shank 3 which extends along a longitudinal axis L of the key.
  • the key shank 3 has an essentially rectangular cross-section with four side surfaces, namely two wide side surfaces 7 and two narrow side surfaces 7'.
  • Various profiling lines and codes are arranged on the side surfaces 7, 7'.
  • Two surface codes 6, 6' and two additional codes 9, 9' are arranged on the tip of the key 4, each of which has three-dimensionally shaped scanning surfaces for querying in the cylinder lock. These scanning surfaces extend from the end face 5 of the key tip 4 to the side faces 7, but mostly run orthogonally to the side faces 7, so that their specific three-dimensional shape can only be determined by scanning the end face 5.
  • Fig. 1b shows the key tip 4 in an enlarged view. It can be seen here that a first surface coding 6 and a second surface coding 6' are arranged on the end face 5 of the key tip 4, with the surface codings 6, 6' being essentially congruent and rotated by an angle of approximately 180” with respect to the longitudinal axis L of the key . This ensures that the flat key 1 can be used as a reversible key.
  • the specific shape of the scanning surfaces is therefore essentially rotationally symmetrical to the longitudinal axis L of the key.
  • additional codes 9, 9' are provided on the end face 5, which also have scanning areas, but which differ from those of the area codes 6, 6'.
  • the additional codes 9, 9' partially overlap the respective area codes 6, 6'. This creates a further possibility for variation, since in the appropriate cylinder lock not only the scanning surface of the surface coding 6, 6' but also the scanning surface of the additional coding 9, 9' must be correctly scanned.
  • a spatially curved and essentially S-shaped contour line 8 runs between the area codes 6, 6'. This is formed during the production of the area codes 6, 6' or the additional codes 9, 9' by milling the key blank.
  • the shape and gradient of the contour line 8 can also be scanned in the cylinder lock and thus used to form key variations.
  • the surface coding 6 is formed in the form of a recess on the end face 5 of the tip 4 of the key.
  • the recess has a sensing surface which essentially corresponds to the lateral surface of a rotating body 10 .
  • this can be achieved by a suitably designed milling tool, as shown schematically in this figure.
  • the surface coding 6 does not necessarily have to be produced as a milling.
  • the axis of rotation R of the rotating body 10 is shown schematically.
  • the axis of rotation R from the tip of the key 4 in the direction of the bow of the key 2 is inclined at an angle of approximately 75° to the longitudinal axis L of the key.
  • the transverse plane E of the flat key 1 is shown.
  • FIG. 2b schematically shows the situation when a surface coding 6 is being set in a view of the key 1 from the front.
  • the face 5 of the flat key 1 is directly visible.
  • the longitudinal axis L of the key runs in the plane of the drawing and orthogonally to the transverse plane E of the flat key 1 .
  • FIG. 2c shows schematically the situation when another embodiment of a surface coding 6 is opened, in a view of the key 1 from the front.
  • the face 5 of the flat key 1 is directly visible.
  • the longitudinal axis L of the key runs in the plane of the drawing and orthogonally to the transverse plane E of the flat key 1 .
  • the axis of rotation R along the transverse plane E of the flat key 1 is offset by a distance e to the longitudinal axis L of the key in this embodiment.
  • the distance e is approximately 1/5 of the entire width B of the key shank 3.
  • the axis of rotation R runs eccentrically to the longitudinal axis L of the key of the flat key 1.
  • the cylinder lock 11 comprises a cylinder core 13 that can be rotated about an axis of rotation D in a cylinder housing 12 and has a key channel 14 for receiving a flat key 1.
  • the cylinder lock 11 is designed to be locked from two sides, so that two cylinder cores 13 and two cylinder housings 12 are provided are.
  • the cylinder lock 11 is designed to allow locking only when a matching flat key 1 is inserted in one of the two key channels 14 .
  • the cylinder lock 11 also includes a coupling arrangement 15 that can rotate about the axis of rotation D and a locking lug 16.
  • the coupling arrangement 15 is designed to transmit the rotation of the cylinder core 13 to the locking lug 16 when an authorized flat key 1 is inserted into the key channel 14.
  • an adapter 17 is provided between the cylinder core 13 and the clutch arrangement 15 and can be displaced along the axis of rotation D.
  • the adapter 17 is designed to shift the position of the coupling arrangement 15 when the flat key 1 is inserted in such a way that when an authorized flat key 1 is inserted, a form-fitting connection between the cylinder core 13, the coupling arrangement 15 and the locking lug 16 is produced.
  • the adapter 17 On its side facing the key channel 14, the adapter 17 has a plurality of sensing elements 19, 19', 19'' for engaging in the surface codes 6, 6' and additional codes 9, 9' on the end face 5 of the flat key 1.
  • the coupling arrangement 15 is designed directly for form-fitting engagement in the surface codes 6, 6' and optionally also in the recesses 9, 9' on the end face 5 of the flat key 1.
  • the coupling arrangement has projections which are designed to scan the surface codes 6, 6' and optionally also the recesses 9, 9' on the end face 5 of the flat key 1. If an authorized flat key 1 is inserted into the key channel 14, the coding on the end face 5 of the flat key 1 immediately shifts the coupling arrangement 15 into the correct longitudinal position along the axis of rotation D, so that the release state is reached.
  • figs 4a - 4b show this described interaction of the adapter 17 with the key tip 4 schematically using three-dimensional representations of a flat key 1 according to the invention and the adapter 17.
  • the adapter 17 has three sensing elements 19, 19', 19", which are designed to detect the surface coding 6 and to scan the additional code 9 on the end face 5 of the key tip 4 of a flat key 1. If the scanning elements fit into the codes, the adapter 17 is displaced along the axis of rotation D in such a way that it in turn transmits a rotation of the cylinder core 13 to the locking lug 16 in a form-fitting manner via the contour 18 on the side facing away from the flat key 1 by actuating the coupling arrangement 15 and thus the cylinder lock 11 can be operated.
  • FIG 5 shows an embodiment of a locking system according to the invention with a flat key 1 according to the invention and a cylinder lock 11 according to the invention.
  • the invention is not limited to the illustrated embodiments, but includes any flat keys or cylinder locks or locking device according to the following patent claims.
  • milling or incision milling should not be limited to recesses that were produced by a milling tool, but rather include recesses that were produced in any way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)

Abstract

L'invention concerne une clé plate (1) pour une serrure à cylindre (11), ladite clé plate comprenant : un anneau de clé (2) et une tige de clé (3) qui s'étend sensiblement parallèlement à un axe longitudinal de clé (L) et comprend une pointe de clé (4), au moins un codage de surface (6) conçu pour être lu dans la serrure à cylindre (11) étant situé au niveau de la face d'extrémité (5) de la pointe de clé (4) ; et une serrure à cylindre (11) pour recevoir une telle clé plate (1), et un système de verrouillage comprenant une ou plusieurs de ces clés plates (1) en combinaison avec une ou plusieurs de ces serrures à cylindre (11).
EP22729410.5A 2021-06-09 2022-06-08 Clé plate comprenant un codage de surface et serrure à cylindre Pending EP4352330A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50467/2021A AT525622A1 (de) 2021-06-09 2021-06-09 Flachschlüssel mit Flächencodierung und Zylinderschloss
PCT/AT2022/060192 WO2022256855A1 (fr) 2021-06-09 2022-06-08 Clé plate comprenant un codage de surface et serrure à cylindre

Publications (1)

Publication Number Publication Date
EP4352330A1 true EP4352330A1 (fr) 2024-04-17

Family

ID=82020186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22729410.5A Pending EP4352330A1 (fr) 2021-06-09 2022-06-08 Clé plate comprenant un codage de surface et serrure à cylindre

Country Status (5)

Country Link
EP (1) EP4352330A1 (fr)
AT (1) AT525622A1 (fr)
AU (1) AU2022289158A1 (fr)
IL (1) IL309075A (fr)
WO (1) WO2022256855A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074171A1 (fr) * 2006-12-21 2008-06-26 Kaba Ag Système de fermeture avec clés réversibles de sécurité
DE102010029168A1 (de) * 2010-05-20 2011-11-24 Bks Gmbh Profilzylinderschlüssel
EP3144453B1 (fr) * 2015-09-21 2019-11-06 dormakaba Deutschland GmbH Barillet de serrure et clé
DE202016105750U1 (de) 2016-10-13 2017-02-16 Michael Riesel Schlüssel, Schloss und Schließsystem
EP3366870A1 (fr) * 2017-02-24 2018-08-29 Assa Ab Système de serrure cylindrique et de clé

Also Published As

Publication number Publication date
IL309075A (en) 2024-02-01
AT525622A1 (de) 2023-05-15
AU2022289158A1 (en) 2023-11-02
WO2022256855A1 (fr) 2022-12-15

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