EP2458115A2 - Kodierungsmechanismus für Schliesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling - Google Patents

Kodierungsmechanismus für Schliesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling Download PDF

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Publication number
EP2458115A2
EP2458115A2 EP11009210A EP11009210A EP2458115A2 EP 2458115 A2 EP2458115 A2 EP 2458115A2 EP 11009210 A EP11009210 A EP 11009210A EP 11009210 A EP11009210 A EP 11009210A EP 2458115 A2 EP2458115 A2 EP 2458115A2
Authority
EP
European Patent Office
Prior art keywords
shank
key
longitudinal
cylinder lock
rotatable key
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
Application number
EP11009210A
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English (en)
French (fr)
Other versions
EP2458115A3 (de
EP2458115B1 (de
Inventor
David Sobotka
Lubos Dvorak
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.)
Tokoz AS
Original Assignee
Tokoz AS
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
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Application filed by Tokoz AS filed Critical Tokoz AS
Priority to PL11009210T priority Critical patent/PL2458115T3/pl
Publication of EP2458115A2 publication Critical patent/EP2458115A2/de
Publication of EP2458115A3 publication Critical patent/EP2458115A3/de
Application granted granted Critical
Publication of EP2458115B1 publication Critical patent/EP2458115B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks
    • E05B21/06—Cylinder locks, e.g. protector locks
    • E05B21/066—Cylinder locks, e.g. protector locks of the rotary-disc tumbler type
    • 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

Definitions

  • the invention relates to the coding mechanism for a cylinder lock with a rotatable key, said mechanism consisting of a guiding element for aligning the shank of the rotatable key inside the cylinder lock and of the rotatable key itself, wherein said guiding element comprises two parallel and mutually offset guide rails, which have their ends interconnected with an abutment bridge and are provided with guiding surfaces extending along their entire lengths, the shank of the rotatable key being provided with known coding projections adapted for interaction with known catchers arranged inside the respective cylinder lock and having its entire cross-section continuously increasing from its intermediate portion towards at least one of its longitudinal edges, at least one of the two pairs of the functional surfaces of said shank having an open V-shape and the intermediate portion of the cross-section of the same being provided with a pair of corresponding longitudinal notches.
  • the number of locking combinations of a particular cylinder lock, which is actuated by a respective rotatable key, hereinafter shortly referred to as key, is usually defined partly by the number of possible combinations of catchers, and hence by the number of possible combinations of the elements formed on the shank of the key for co-operation with said catchers, and partly by the number of possible cross-sectional shapes of the shank of the key.
  • a special subgroup of cylinder locks actuated by matching keys comprises the so called cylinder locks with rotatable keys actuating lamellar catchers, which are arranged perpendicularly to the respective key, said lamellar catchers consisting of rotatable discs.
  • An example of such a cylinder lock assembly is disclosed in the patent document CZ 293659 .
  • the number of possible cross-sectional shapes of the shank of the respective key is considerably limited in that a certain portion of the shank has to be adapted for co-operation with a guiding element which is intended for guiding the shank of the key inside the cylinder lock, thus preventing any undesirable contact between the key and the catchers, or the remaining discs, during the advancing motion of the shank of the key inside the cylinder lock.
  • the guiding element 1 ( Fig. 1 ) comprises two parallel and mutually offset guide rails 2 , which have their ends interconnected with an abutment bridge 3 .
  • the guiding element 1 is rigidly interconnected with the adjusting cylinder 4, the guide rails 2 being arranged along the through hole 5 for the insertion of the key 6 .
  • the guide rails 2 are further provided with guiding surfaces 7 .
  • the guiding elements 1 are manufactured in the form of thin bent parts and that is why they usually have rectangular cross-sections with smooth guiding surfaces 7 ( Fig. 2 ).
  • the shank of the key is usually adapted for the interaction with the guiding element by being provided with two opposite grooves 8 in the intermediate cross-sectional portion of the shank 9 of the key 6 , said grooves matching with the respective profiles formed on the guide rails, thus having substantially flat bottom portions 10 without any additional shaped elements contributing to the generation of locking combinations for the respective cylinder lock ( Fig. 2 ).
  • the flat bottom portions 10 are also provided with two additional notches 11 , the latter only facilitate the manufacture of the key but do not contribute to the generation of locking combinations.
  • modified keys For other types of cylinder locks, modified keys have already been developed.
  • the cross-sections of such keys are adapted to include opposite grooves with additional shaped elements formed in the bottom portions of said grooves.
  • Such keys are not suitable for being used in the above mentioned type of the cylinder lock.
  • the objective of the present invention is to eliminate the above drawbacks of the existing solutions and to create such a coding mechanism for cylinder locks with rotatable keys, which would enable to increase the possible number of locking combinations of the specific type of cylinder locks.
  • Another objective of the present invention is to propose a key blank for manufacturing rotatable keys for cylinder locks provided with the above coding mechanism.
  • the key blank according to the invention should enable the ready-to-use keys to be manufactured in the simplest and most cost-effective manner.
  • a coding mechanism for a cylinder lock with a rotatable key said mechanism consisting of a guiding element for aligning the shank of the rotatable key inside the cylinder lock and of the rotatable key itself, wherein the guiding element comprises two mutually parallel and spaced apart guide rails, which have their ends interconnected by an abutment bridge and which are provided with guiding surfaces extending along their entire lengths, the shank of the rotatable key being provided with usual coding projections adapted for interaction with usual catchers arranged inside the respective cylinder lock and having its entire cross-section continuously increasing from its intermediate portion towards at least one of its longitudinal edges, at least one of the two pairs of the functional surfaces of said shank having an open V-shape and the intermediate portion of the cross-section of the same being provided with a pair of corresponding longitudinal notches, wherein according to the invention the longitudinal notches have flat bottom portions, the guiding surface of at least one guide rail and the corresponding flat
  • the guiding surface of at least one guide rail is provided with one longitudinal rib and the corresponding flat bottom portion of the respective longitudinal notch formed in the shank of the rotatable key is provided with one co-operating additional notch.
  • An advantageous key blank for the rotatable key of the coding mechanism comprises a shank having its entire cross-section continuously increasing from its intermediate portion towards at least one of its longitudinal edges, at least one of the two pairs of the functional surfaces and of said shank having an open V-shape and the intermediate portion of the cross-section of the same being provided with two opposed longitudinal notches, while according to the invention the longitudinal notches have flat bottom portions, the flat bottom portion of at least one longitudinal notch formed in the shank of the key blank for the rotatable key is provided with an additional notch co-operating with a corresponding longitudinal rib formed on a guiding surface of a guide rail inside the cylinder lock.
  • the longitudinal notches may have flat bottom portions, the flat bottom portion of at least one longitudinal notch formed in the shank of the key blank for the rotatable key having a convex shape for an engagement with a matching convex guiding surface of a guide rail inside the cylinder lock.
  • An advantage of the invention is, that thanks to the invention it is possible to generate additional locking combinations for cylinder locks with rotatable keys operating segment catchers, the catchers being perpendicular to the rotatable key, so that the chance of unlocking a specific cylinder lock using a key similar to the correct key for that specific lock is lowered.
  • the guiding element shaped according to the invention may be relatively easily manufactured in a known manner, namely by casting a steel powder substrate under a temperature that enables the crystals of the metal to be fused together by means of surface stresses, i.e. by means of the so called MIM method.
  • FIG. 1 shows a perspective view of the rotatable key and the guiding element interconnected with the adjusting cylinder according to the prior art, the rotatable key being represented outside the guiding element
  • Fig. 2 shows a front view of the rotatable key inserted in the guiding element according to the prior art
  • Fig. 1 shows a perspective view of the rotatable key and the guiding element interconnected with the adjusting cylinder according to the prior art, the rotatable key being represented outside the guiding element
  • Fig. 2 shows a front view of the rotatable key inserted in the guiding element according to the prior art
  • Fig. 1 shows a perspective view of the rotatable key and the guiding element interconnected with the adjusting cylinder according to the prior art, the rotatable key being represented outside the guiding element
  • Fig. 2 shows a front view of the rotatable key inserted in the guiding element according to the prior art
  • Fig. 1 shows a perspective view of the rotatable
  • FIG. 3 shows an enlarged sectional view of the guiding element according to the prior art with the rotatable key inserted therein, the section being led through the plane III - III as indicated in Fig. 2
  • Fig. 4 shows a side view of the guiding element according to the first exemplary embodiment of the invention
  • Fig. 5 shows a sectional view of the guiding element according to the first exemplary embodiment of the invention, the section being led through the plane V - V as indicated in Fig. 4
  • Fig. 6 shows a front view of the rotatable key according to the first exemplary embodiment of the invention
  • FIG. 7 shows a sectional view of the shank of the rotatable key according to the first exemplary embodiment of the invention, the section being led through the plane VII - VII as indicated in Fig. 6
  • Fig. 8 shows a front view of the rotatable key inserted in the guiding element according to the first exemplary embodiment of the invention
  • Fig. 9 shows enlarged the sectional view of the coding mechanism according to the first exemplary embodiment of the invention, the section being led through the plane IX - IX as indicated in Fig. 8
  • Fig. 10 shows the front view of the rotatable key inserted in the guiding element according to the second exemplary embodiment of the invention, Fig.
  • FIG. 11 shows enlarged the sectional view of the coding mechanism according to the second exemplary embodiment of the invention, the section being led through the plane XI - XI as indicated in Fig. 10
  • Fig. 12 shows the front view of the rotatable key inserted in the guiding element according to the third exemplary embodiment of the invention
  • Fig. 13 shows enlarged the sectional view of the coding mechanism according to the third exemplary embodiment of the invention, the section being led through the plane XIII - XIII as indicated in Fig. 12
  • Fig. 14 shows the front view of the key blank for the rotatable key according to the first exemplary embodiment of the invention
  • FIG. 15 shows the enlarged sectional view of the key blank the rotatable key according to the first exemplary embodiment of the invention, the section being led through the plane XV - XV as indicated in Fig. 14
  • Fig. 16 shows the front view of the key blank for the rotatable key according to the second exemplary embodiment of the invention
  • Fig. 17 shows the enlarged sectional view of the key blank the rotatable key according to the second exemplary embodiment of the invention, the section being led through the plane XVII - XVII as indicated in Fig. 16
  • Fig. 18 shows the front view of the key blank for the rotatable key according to the third exemplary embodiment of the invention
  • Fig. 19 shows the enlarged sectional view of the key blank the rotatable key according to the third exemplary embodiment of the invention, the section being led through the plane XIX - XIX as indicated in Fig. 18 .
  • the coding mechanism for the cylinder lock with the rotatable key 12 hereinafter referred to as key 12 , according to the first exemplary embodiment of the invention ( Fig. 4 ) comprises the guiding element 13 for guiding the shank 14 of the key 12 inside the cylinder lock and the shank 14 of the key 12 itself, said components being mutually adapted for generating locking combinations of said cylinder lock in the manners described hereinafter with reference to the individual exemplary embodiments.
  • the guiding element 13 ( Fig. 4 ) comprises a known arrangement of two parallel and mutually offset guide rails 15 , which have their ends interconnected with the abutment bridge 16 .
  • the latter provides a reinforcement for the guide rails 15 and simultaneously forms the abutment surface for the tip of the shank 14 of the key 12 .
  • the guide rails 15 extend perpendicularly to the guiding element and along the normal through hole formed in the adjusting cylinder 17 and serving for the insertion of the key 12 .
  • the guiding element 13 and the adjusting cylinder 17 are rigidly interconnected. However, the latter does not constitute a part of the coding mechanism.
  • the guide rails 15 are provided with guiding surfaces 18 ( Fig. 5 ) that align the shank 14 of the key 12 during the insertion of the latter, thus preventing the shank 14 from deviating from the desired direction in the horizontal plane.
  • the guiding surfaces 18 of the both guide rails 15 are provided with longitudinal ribs 19, 20 that are identical in shape but mirror inverted each to the other and that are equally spaced from the edges of the guiding surfaces 18 ( Fig. 5 ).
  • the shank 14 of the rotatable key 12 ( Fig. 6 ) is provided with a set of standard coding projections 21 for the interaction with standard catchers (not shown) arranged inside the cylinder lock with the rotatable key 12 .
  • the shank 14 is provided with usual mirror-symmetrical longitudinal notches 22, 23 on either side in its intermediate portion ( Fig. 7 ) for guide rails 15 .
  • Said longitudinal notches 22, 23 are delimited by their flat bottom portions 24, 25 as well as by their lateral walls 26 , 27 and 28 , 29 .
  • the flat bottom portions 24 , 25 of the longitudinal notches 22, 23 formed in the shank 14 are provided with corresponding additional grooves 30 , 31 that, in regard to their shapes and sizes and position, match with the respective longitudinal ribs 19, 20 formed in the guiding surfaces 18 of the guide rails 15 .
  • the intermediate portion of the shank 14 is terminated by the lateral lobes 32, 33, 34, 35 that form the aforesaid lateral walls 26 , 27 and 28 , 29 .
  • the shank 14 has its entire cross-section continuously increasing from its intermediate portion towards its longitudinal edges 36 , 37 so that the functional surfaces 38 , 39 and 40 , 41 of the same assume an open V-shape.
  • the shank 14 may alternatively have its cross-section continuously increasing from its intermediate portion towards only one of its longitudinal edges, e.g. towards the longitudinal edge 27 . In such case, the respective functional surfaces 40 , 41 would be parallel.
  • the shank 42 of the key blank 43 for the manufacture of the rotatable key 12 ( Fig. 14 ) for the coding mechanism according to the first exemplary embodiment of the invention is provided with elements that are identical to those of the shank 14 of the key 12 according to the first exemplary embodiment.
  • the former is also provided with the longitudinal notches 22, 23 having flat bottom portions 24, 25 and lateral walls 26 , 27 and 28 , 29 .
  • the flat bottom portions 24 , 25 of the longitudinal notches 22, 23 formed in the shank 42 of the key blank 43 are also provided with corresponding additional grooves 30 , 31 that, in regard to their shapes and sizes, match with the respective longitudinal ribs 19, 20 formed in the guiding surfaces 18 of the guide rails 15 .
  • the shank 42 of the key blank 43 for the key 12 is also provided with the lateral lobes 32 , 33 , 34 , 35 , the longitudinal edges 36 , 37 and the functional surfaces 38 , 39 and 40 , 41 , which are identical to those of the shank 14 , and also has, by analogy to the shank 14 of the key 12 , its entire cross-section continuously increasing from its intermediate portion towards its longitudinal edges 36 , 37 so that its functional surfaces 38 , 39 and 40 , 41 assume the same open V-shape as those of the shank 14 of the key 12 do.
  • both the shape and the dimensions of the shank 42 of the key blank 43 for the key 12 according to the first exemplary embodiment are fully identical to those of the shank 14 of the key 12 according to the first exemplary embodiment.
  • the only difference between the shanks 42 and 14 of the key blank 43 and the key 12 , respectively, consists in that the former does not include the coding projections 21 for the interaction with known matching internal catchers (not shown) of the cylinder lock.
  • the shank 42 of the key blank 43 for the key 12 can be used for manufacturing the shank 14 of the key 12 by removing the surplus material in order to form the usual set of coding projections 21 .
  • the difference between the coding mechanism according to the second exemplary embodiment of the invention ( Fig. 11 ) and that according to the first exemplary embodiment consists merely in that the guiding surfaces 18 of either guide rail 15 are provided with longitudinal ribs 44 , 45 that are identical in shape but mirror inverted each to the other and that are located at the edges of the guiding surfaces 18 .
  • the flat bottom portions 24, 25 of the longitudinal notches 22, 23 formed in the shank 14 of the key 12 are provided with corresponding additional notches 46 , 47 that, in regard to their shapes and sizes, match with the respective longitudinal ribs 44 , 45 formed in the guiding surfaces 18 of the guide rails 15 .
  • the flat bottom portions 24, 25 of the longitudinal notches 22, 23 formed in the shank 42 of the key blank 43 for the key 12 for the coding mechanism according to the second exemplary embodiment are also provided with corresponding additional notches 46 , 47 that, in regard to their shapes and sizes, match with the respective longitudinal ribs 44 , 45 formed in the guiding surfaces 18 of the guide rails 15 .
  • the difference between the coding mechanism according to the third exemplary embodiment ( Fig. 13 ) and those according to the first and second exemplary embodiments consists merely in that the guiding surfaces 18 of either guide rail 15 have convex shape.
  • the bottom portions 24 , 25 of the longitudinal notches 22, 23 formed in the shank 14 of the key 12 are concave in shape, said shape as well as the dimensions thereof matching with the above mentioned convex shape of the guiding surfaces 18 of the two guide rails 15 .
  • the bottom portions 24 , 25 of the longitudinal notches 22, 23 formed in the shank 42 of the key blank 43 for the manufacture of the key 12 are also concave in shape, said shape as well as the dimensions thereof matching with the above mentioned convex shape of the guiding surfaces 18 of the two guide rails 15 ( Fig. 18 ).
  • the functional principle of the coding mechanism according to the invention is as follows: When the shank 14 of the key 12 is being inserted into the cylinder lock, the longitudinal notches 22, 23 formed in the shank 14 of the key 12 come into contact with the corresponding guide rails 15 and, simultaneously, the additional grooves 30 , 31 and additional notches 46 , 47 formed in the flat bottom portions 24, 25 of the longitudinal notches 22 , 23 come into contact with the corresponding longitudinal ribs 19 , 20 , 44 , 45 formed on the guiding surfaces 18 of the guide rails 15 or the concave surfaces of the bottom portions 24, 25 of the longitudinal notches 22, 23 come into contact with the matching convex surfaces of the guiding surfaces 18 of the guide rails 15 .
  • the shank 14 of the key 12 is not provided with a longitudinal notch, which is matching (in regard to the shape, size and location) with the corresponding longitudinal rib formed on the guiding surface 18 , that rib will then prevent the shank of the incorrect key from entering into the cylinder lock.
  • the respective bottom portion 24, 25 is not provided with a concave profile, which is matching (in regard to the shape, size and location) with the corresponding convex guiding surface 18 , that guiding surface 18 will then prevent the shank of the incorrect key from entering into the cylinder lock.
  • the coding mechanism for cylinder locks with rotatable keys according to the invention may be utilized for manufacturing cylinder locks with rotatable keys actuating lamellar catchers that are arranged perpendicularly to the respective key.
  • the coding mechanism according to the invention enables an increased number of locking combination to be achieved.
  • the key blank according to the invention is utilizable for manufacturing ready-to-use rotatable keys for cylinder locks.

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  • Lock And Its Accessories (AREA)
EP11009210.3A 2010-11-30 2011-11-21 Kodierungsmechanismus für Schiesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling Active EP2458115B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11009210T PL2458115T3 (pl) 2010-11-30 2011-11-21 Mechanizm szyfrujący do bębenkowego zamka z obrotowym kluczem i półwyrobem klucza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ20100880A CZ302949B6 (cs) 2010-11-30 2010-11-30 Kódovací ústrojí pro válcový zámek s otácivým klícem a polotovar tohoto otácivého klíce

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CZ20100880 Previously-Filed-Application 2010-11-30

Publications (3)

Publication Number Publication Date
EP2458115A2 true EP2458115A2 (de) 2012-05-30
EP2458115A3 EP2458115A3 (de) 2016-03-09
EP2458115B1 EP2458115B1 (de) 2017-08-16

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EP11009210.3A Active EP2458115B1 (de) 2010-11-30 2011-11-21 Kodierungsmechanismus für Schiesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling

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EP (1) EP2458115B1 (de)
CZ (1) CZ302949B6 (de)
PL (1) PL2458115T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2458115B1 (de) 2010-11-30 2017-08-16 Tokoz A.S. Kodierungsmechanismus für Schiesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2021192A3 (cs) 2021-04-16 2022-06-29 Tokoz A.S. Uzamykací systém válcového zámku a klíče, válcový zámek a klíč

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123192A2 (de) 1983-04-21 1984-10-31 Karrenberg, Wilhelm Schlüssel für Zylinderschlösser
CZ293659B6 (cs) 1998-09-25 2004-06-16 Abloy Oy Kombinace válcového zámku a klíče, polotovar klíče a příslušný klíč

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US1823411A (en) 1929-05-28 1931-09-15 Firm Bauer A G Cylinder lock
US3597948A (en) * 1969-01-14 1971-08-10 Gen Motors Corp Lock cylinder assembly
US4111021A (en) * 1974-09-12 1978-09-05 Marvin E. Roberts Key construction
US4109497A (en) * 1976-03-26 1978-08-29 Roberts Marvin E Key construction
FI68290C (fi) 1976-10-04 1985-08-12 Waertsilae Oy Ab Nyckelprofil- och laossystem
US4320638A (en) * 1979-05-10 1982-03-23 Ogden Industries Pty. Limited Tumbler lock and key
GB8508961D0 (en) * 1985-04-04 1985-05-09 Dewalch N B Lock & key
FI81429C (fi) * 1985-04-11 1990-10-10 Waertsilae Oy Ab Cylinderlaos-nyckel-kombination.
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DE19707932C2 (de) * 1997-02-27 2000-03-02 Schulte C E Gmbh Flachschlüssel für mit Stiftzuhaltungen ausgestattete Schließzylinder einer Schließanlage
DE29711144U1 (de) * 1997-06-26 1998-10-29 Bks Gmbh, 42549 Velbert Schlüssel
FI124224B (fi) 2010-01-04 2014-05-15 Abloy Oy Levyhaittasylinterilukko ja avain yhdistelmä
CZ302949B6 (cs) 2010-11-30 2012-01-25 Tokoz A.S. Kódovací ústrojí pro válcový zámek s otácivým klícem a polotovar tohoto otácivého klíce

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123192A2 (de) 1983-04-21 1984-10-31 Karrenberg, Wilhelm Schlüssel für Zylinderschlösser
CZ293659B6 (cs) 1998-09-25 2004-06-16 Abloy Oy Kombinace válcového zámku a klíče, polotovar klíče a příslušný klíč

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2458115B1 (de) 2010-11-30 2017-08-16 Tokoz A.S. Kodierungsmechanismus für Schiesszylinder mit einem drehbaren Schlüssel und Schlüsselrohling

Also Published As

Publication number Publication date
CZ2010880A3 (cs) 2012-01-25
PL2458115T3 (pl) 2018-01-31
EP2458115A3 (de) 2016-03-09
CZ302949B6 (cs) 2012-01-25
EP2458115B1 (de) 2017-08-16

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