EP2990568B1 - Tambour de codage pour noyau de serrure cylindrique et serrure pourvue d'un noyau de serrure cylindrique comprenant un tambour de codage - Google Patents

Tambour de codage pour noyau de serrure cylindrique et serrure pourvue d'un noyau de serrure cylindrique comprenant un tambour de codage Download PDF

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Publication number
EP2990568B1
EP2990568B1 EP15179837.8A EP15179837A EP2990568B1 EP 2990568 B1 EP2990568 B1 EP 2990568B1 EP 15179837 A EP15179837 A EP 15179837A EP 2990568 B1 EP2990568 B1 EP 2990568B1
Authority
EP
European Patent Office
Prior art keywords
tumbler
coding
key
cylindrical
lock core
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.)
Active
Application number
EP15179837.8A
Other languages
German (de)
English (en)
Other versions
EP2990568A1 (fr
Inventor
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
Application filed by Tokoz AS filed Critical Tokoz AS
Priority to PL15179837T priority Critical patent/PL2990568T3/pl
Publication of EP2990568A1 publication Critical patent/EP2990568A1/fr
Application granted granted Critical
Publication of EP2990568B1 publication Critical patent/EP2990568B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E05B27/0021—Tumblers or pins having movable parts

Definitions

  • the present invention relates to a coding tumbler which is adapted for being slidably mounted inside a cylindrical lock core of a cylinder lock and which comprises a supporting end for maintaining contact with an interlocking tumbler, and a working end.
  • the present invention also relates to a cylindrical lock core comprising such coding tumbler as well as to a cylinder lock comprising a case provided with a cylindrical cavity and with at least one guiding chamber arranged radially with respect to said cylindrical cavity of said case; a cylindrical lock core rotatably arranged inside said cylindrical cavity of said case and being provided with a key channel for inserting a corresponding key and at least one radial channel, which is displaceable to a position where it is coaxial with said guiding chamber; at least one interlocking tumbler, which is slidably mounted in said guiding chamber; and at least one spring arranged in said guiding chamber and forcing said interlocking tumbler in the direction from said guiding chamber towards said cylindrical cavity.
  • Locks having cylindrical lock cores which comprise tumblers for coding the respective lock, are generally known.
  • a prior art lock comprises a case in which a cylindrical lock core is mounted, the latter being provided with a key channel for inserting a corresponding key.
  • the case is further provided with guiding chambers, which are arranged inside the same and in which interlocking tumblers resting on spring elements are slidably mounted, while the cylindrical lock core is provided with radial channels accommodating coding tumblers.
  • the lengths of the individual coding tumblers as well as the sequence of the same enable a code to be generated. Accordingly, a right key must have its blade provided with cut-outs / projections with individual depths corresponding to such code.
  • a guiding chamber and a radial channel always adjoin in a coaxial manner.
  • the interlocking tumblers and coding tumblers which are accommodated inside those chambers and channels, assume respective coaxial positions, the contact surfaces between such interlocking tumblers and coding tumblers being arranged in a cylindrically shaped partition plane due to the action of the key, said partition plane being identical with the outer cylindrical surface of the lock core or with the inner surface of the case.
  • the coding edge of the key blade After having been inserted into the key channel, the coding edge of the key blade, namely the cut-outs and projections of the same, come into contact with the respective coding tumblers, causing the latter to be pushed in a radial direction towards the respective guiding chamber. Consequently, the coding tumblers force the respective interlocking tumblers into the chamber in a manner that ensures that each contact surface between a coding tumbler and an interlocking tumbler forming an individual tumbler pair matches with the above cylindrical partition plane.
  • the interlocking tumblers are partly slid out of the chamber due to the action of the respective spring elements, so that they intersect said cylindrical partition plane, thus preventing the cylindrical core from rotating inside the case.
  • the cylindrical partition plane is intersected by the coding tumblers slid out of some chambers as well as by the interlocking tumblers slid out of the remaining chambers.
  • a prior art key has the coding edge of its blade formed in a manner which ensures that the individual projections and cut-outs comprise leading facets for facilitating the movement of the key in either direction.
  • the coding tumblers are gradually pressed in by the leading facet of each individual projection while the key is being slid in / out, preventing the projection from being blocked by the respective coding tumbler.
  • the key still cannot be slid in the key channel and out of the same in a perfectly smooth manner.
  • the key becomes worn out due to the sliding contact between the projections of the coding edge and the surfaces of the coding tumblers, the latter becoming worn out in a similar extent.
  • a tumbler provided with a portion providing a rolling contact with the key is known from WO 96/41929 .
  • US 3190093 discloses a tumbler is known comprising a ball on one end, the ball being inserted in a seat with sufficient friction as to keep it in the seat during handling and initial use.
  • EP 2 273 042 discloses a tumbler comprising a ball element which by press fitting is secured against removal on one end of the tumbler. This end is however not the working end of the tumbler.
  • a coding tumbler which is adapted for being slidably mounted inside a cylindrical lock core of a cylinder lock and which comprises a supporting end for maintaining contact with an interlocking tumbler and a working end, wherein the working end comprises a recess, in which a contact element is accommodated with a clearance, said contact element being secured against slipping out of the recess in the direction of the longitudinal axis of the coding tumbler, and having, in at least one portion, a circular cross-section for providing a rolling contact with a coding edge of a key inserted into the cylinder lock.
  • the contact element extends beyond the working end of the coding tumbler.
  • the contact element has the shape of a ball or a cylinder or a barrel.
  • a cylindrical lock core for a cylinder lock said lock core comprising a key channel for inserting a key and at least one radial channel which opens into the key channel, wherein it further comprises at least one above specified coding tumbler, said coding tumbler being slidably mounted in the radial channel.
  • a preferred embodiment of the cylindrical lock core has the radial channel provided with guiding recesses for guiding the coding tumbler, the guiding recesses being widened in the area, where they open into the radial channel, in order to form bearing surfaces for the contact element, said bearing surfaces preventing said contact element from slipping out of the recess in the direction, which is parallel to the longitudinal axis of the cylindrical lock core.
  • the radial channel is provided with guiding recesses for guiding the coding tumbler, the guiding recesses being widened in the area, where they open into the radial channel, in order to form bearing surfaces for the contact element.
  • FIG. 1 is a cross-sectional view showing a lock comprising a coding tumbler according to the invention
  • Fig. 2 shows the lock of Fig. 1 in a vertical longitudinal section
  • Fig. 3 shows the lock of Fig. 1 in a horizontal longitudinal section.
  • the individual representations are strongly magnified in the drawings.
  • the lock according to the exemplary embodiment of the present invention comprises a case 1 provided with a cylindrical cavity in which a cylindrical lock core 2 is accommodated.
  • the attached drawings show a lock comprising two pairs of cases 1 and corresponding cylindrical lock cores 2 , which means that there is one cylindrical lock core 2 provided for either side of the respective door.
  • the two cylindrical lock cores 2 are interconnected through a coupling assembly 15 , an operating element 16 being arranged therebetween.
  • the portions of the case 1 associated with either cylindrical lock core 2 are interconnected through a bridge 17 , the latter being provided with an anchoring hole 18 for securing the lock inside a door.
  • the bridge simultaneously serves as an assembling stopper 4 for either case 1 .
  • the cylindrical lock core 2 comprises an array of guiding chambers 3 which open into the cylindrical cavity, the axes of said chambers being perpendicular to the longitudinal axis of the cylindrical cavity.
  • the guiding chambers 3 are closed by the assembling stopper 4 secured by the retaining pin 5 arranged on the outside surface of the case.
  • Each guiding chamber 3 accommodates an interlocking tumbler 6 slidably mounted therein.
  • the space between the assembling stopper 4 and the interlocking tumbler 6 accommodates a compression spring 7 .
  • the cylindrical lock core 2 comprises an array of radial channels 8 , the rotation of the cylindrical lock core 2 inside the case 1 causing said radial channels to be aligned with the guiding chambers 3 . Consequently, each guiding chamber 3 assumes a coaxial arrangement with respect to a corresponding radial channel 8 .
  • the cylindrical lock core also comprises an inner key channel 9 extending in the direction of the longitudinal axis of the cylindrical lock core 2 .
  • the radial channels 9 individually open into the key channel 9 .
  • each radial channel 8 contains a coding tumbler 10 , which is slidably mounted inside the same and which has a supporting end 11 provided with a contact face for maintaining contact with an interlocking tumbler 6 or with a cylindrical inner surface of the cylindrical cavity of the case 1 , on the one hand, and a working end 12 , on the other hand.
  • the working end 12 comprises a recess, in which a ball 13 is rotatably accommodated, the latter slightly projecting beyond the working end 12 and being adapted for coming into a rolling contact with a coding edge of the key, i.e. with the cut-outs and projections of said edge, when the key is being slid into the key channel 9 and out of the same.
  • both the coding tumblers 10 and the interlocking tumblers 6 are radially displaceable with respect to the cylindrical lock core 2 , i.e. in a direction which extends perpendicularly to the longitudinal axis of the cylindrical cavity or to that of the key channel 9 .
  • the radial channels 8 formed in the cylindrical lock core 2 comprise guiding recesses 14 for guiding the coding tumblers 10 in a radial direction.
  • the guiding recesses 14 are widened in the area, where they open into the key channel 9 , thus providing bearing surfaces for guiding the balls 13 during the sliding movement of the respective coding tumbler 10 inside the radial channel 8 and preventing the ball 13 from being slid out of the recess during the sliding movement of a key inside the key channel 9 .
  • the recess for accommodating the ball 13 i.e. the recess formed at the working end 12 of the coding tumbler 10 , has a shape of a partial cylindrical surface which surrounds the ball 13 with a certain clearance, so that the cross-sectional profile of the ball 13 forms a sector in the area where the ball 13 is in contact with the recess formed at the working end 12 of the coding tumbler 10 and the sector has an central angle between 190° and 330°.
  • the recess for accommodating the ball 13 is formed in a manner which enables the ball 13 to freely rotate inside the recess while preventing the same from displacing with respect to the coding tumbler 10 in the direction of the sliding movement of the latter in the radial channel 8 .
  • the balls 13 can be replaced with another contact element which can create a rolling contact with a coding edge of a key blade.
  • Such contact element can assume, for example, a shape of a cylindrical or barrel-like roller etc.
  • the contact element has a circular cross-section in a plane which defines the direction of the movement of the key being slid into the lock or out of the same.
  • the shape of the recess formed at the working end 12 of the coding tumbler 10 must be adapted to that of the contact element in order that the latter is enabled to perform a rotational movement around an axis, which is perpendicular to the plane encompassing the direction of the insertion of the key into the key channel 9 .
  • the rotating contact element must be prevented from falling out of the recess in any radial direction with respect to the cylindrical lock core 2 .
  • a rolling contact of the contact element with the coding edge of the key is achieved, causing the contact element to rotate around its axis extending in the movement direction of the key when the key is being slid into or out of the key channel 9 .
  • the contact element extends beyond the working end 12 of the coding tumbler 10 .
  • the structural arrangement of the coding tumbler 10 according to the present invention namely the arrangement comprising the working end 12 provided with a contact element for providing a rolling contact with a key, reduces the wear of the coding tumbler and the key during the operation of the lock, on the one hand, and makes the movement of the key being slid into / out of the key channel considerably smoother, on the other hand.
  • the coding tumblers 10 may also have a split arrangement which means that they comprise first portion with a supporting end 11 and a second portion with a working end 12 .

Landscapes

  • Lock And Its Accessories (AREA)

Claims (7)

  1. Un piston (10) de codage adapté pour être monté de manière coulissante à l'intérieur d'un noyau (2) de verrouillage cylindrique d'une serrure à cylindre et qui comprend une extrémité (11) de support pour maintenir le contact avec un piston (6) de blocage et une extrémité (12) de travail, caractérisé en ce que l'extrémité (12) de travail comprend un évidement, dans lequel un élément de contact est logé avec un jeu, ledit élément de contact
    - étant fixé contre son désengagement de l'évidement dans la direction de l'axe longitudinal du piston (10) de codage, et
    - ayant, dans au moins une partie, une section transversale circulaire pour fournir un contact de roulement avec un bord de codage d'une clé insérée dans la serrure à cylindre.
  2. Le piston de codage selon la revendication 1, caractérisé en ce que l'élément de contact s'étend au-delà de l'extrémité (12) de travail du piston (10) de codage.
  3. Le piston de codage selon la revendication 1 ou 2, caractérisé en ce que l'élément de contact a la forme d'une bille (13) ou d'un cylindre ou d'un baril.
  4. Un noyau (2) de verrouillage cylindrique pour une serrure à cylindre, ledit noyau de verrouillage comprenant un canal (9) de clé pour insérer une clé et au moins un canal (8) radial qui débouche dans le canal (9) de clé, caractérisé en ce qu'il comprend en outre au moins un piston (10) de codage selon l'une quelconque des revendications 1 à 3, ledit piston de codage étant monté de manière coulissante dans le canal (8) radial.
  5. Le noyau (2) de verrouillage cylindrique selon la revendication 4, caractérisé en ce que le canal (8) radial est pourvu d'évidements (14) de guidage pour guider le piston (10) de codage, les évidements (14) de guidage étant élargis dans la zone, où ils débouchent dans le canal (8) radial, afin de former des surfaces d'appui pour l'élément de contact, lesdites surfaces d'appui empêchant ledit élément de contact de désengager hors de l'évidement dans la direction qui est parallèle à l'axe longitudinal du noyau (2) de la serrure à cylindre.
  6. Serrure à cylindre, comprenant
    - un boîtier (1) pourvu d'une cavité cylindrique et d'au moins une chambre (3) de guidage disposée dans la direction radiale par rapport à la cavité cylindrique du boîtier (1),
    - un noyau (2) de verrouillage cylindrique disposé de manière rotative dans la cavité cylindrique du boîtier (1) et muni d'un canal de clé pour insérer une clé et avec au moins un canal (8) radial qui peut être réglé sur une position dans laquelle il est coaxial à la chambre (3) de guidage,
    - au moins un piston (6) de blocage, qui est monté de manière coulissante dans la chambre (3) de guidage, et
    - au moins un ressort (7) disposé dans la chambre (3) de guidage et poussant le piston (6) de blocage dans la direction de la chambre (3) de guidage vers la cavité cylindrique,
    caractérisé en ce qu'il comprend en outre au moins un piston (10) de codage selon l'une quelconque des revendications 1 à 3, ledit piston de codage étant monté de manière coulissante dans le canal (8) radial.
  7. Serrure à cylindre selon la revendication 6, caractérisée en ce que le canal (8) radial est pourvu d'évidements (14) de guidage pour guider le piston (10) de codage, les évidements (14) de guidage étant élargis dans la zone où ils débouchent dans le canal (8) radial, afin de former des surfaces d'appui pour l'élément de contact.
EP15179837.8A 2014-08-05 2015-08-05 Tambour de codage pour noyau de serrure cylindrique et serrure pourvue d'un noyau de serrure cylindrique comprenant un tambour de codage Active EP2990568B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15179837T PL2990568T3 (pl) 2014-08-05 2015-08-05 Zapadka kodująca dla cylindrycznego rdzenia zamka oraz zamek z cylindrycznym rdzeniem zamka zawierającym zapadkę kodującą

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2014-530A CZ305480B6 (cs) 2014-08-05 2014-08-05 Kódovací stavítko pro válcovou vložku a zámek s válcovou vložkou obsahující kódovací stavítko

Publications (2)

Publication Number Publication Date
EP2990568A1 EP2990568A1 (fr) 2016-03-02
EP2990568B1 true EP2990568B1 (fr) 2017-06-14

Family

ID=54145528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15179837.8A Active EP2990568B1 (fr) 2014-08-05 2015-08-05 Tambour de codage pour noyau de serrure cylindrique et serrure pourvue d'un noyau de serrure cylindrique comprenant un tambour de codage

Country Status (5)

Country Link
EP (1) EP2990568B1 (fr)
CZ (1) CZ305480B6 (fr)
HU (1) HUE036305T2 (fr)
LT (1) LT2990568T (fr)
PL (1) PL2990568T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019130742A1 (de) * 2019-11-14 2021-05-20 Abus Pfaffenhain Gmbh Profilzylinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386932A (en) * 1932-06-09 1933-01-26 James Lonsdale Oldham Improvements in revolving barrel locks and keys
US2565531A (en) * 1948-06-18 1951-08-28 Spiegler Howard Pickproof pin tumbler lock
US3190093A (en) * 1963-02-07 1965-06-22 Schlage Lock Co Pin tumbler cylinder and key system
DE3016393C2 (de) * 1980-02-08 1986-03-27 Evva-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern GmbH & Co KG, Wien Schließzylinder
CN1138131A (zh) * 1995-06-09 1996-12-18 石淳民 用滚珠罗纹子的系列锁头配用钥匙联用外锁和配用锁体
AT508868B1 (de) * 2009-07-06 2012-11-15 Evva Sicherheitstechnologie Zylinderschloss

Also Published As

Publication number Publication date
PL2990568T3 (pl) 2017-12-29
LT2990568T (lt) 2017-09-11
CZ2014530A3 (cs) 2015-10-21
CZ305480B6 (cs) 2015-10-21
HUE036305T2 (hu) 2018-07-30
EP2990568A1 (fr) 2016-03-02

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