EP0161654B1 - Diebstahlsicheres Zylinderschloss, insbesondere für Systeme mit Haupt- und Nebenschlüsseln - Google Patents

Diebstahlsicheres Zylinderschloss, insbesondere für Systeme mit Haupt- und Nebenschlüsseln Download PDF

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Publication number
EP0161654B1
EP0161654B1 EP85105836A EP85105836A EP0161654B1 EP 0161654 B1 EP0161654 B1 EP 0161654B1 EP 85105836 A EP85105836 A EP 85105836A EP 85105836 A EP85105836 A EP 85105836A EP 0161654 B1 EP0161654 B1 EP 0161654B1
Authority
EP
European Patent Office
Prior art keywords
key
plug
pin
casing
channel
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.)
Expired - Lifetime
Application number
EP85105836A
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English (en)
French (fr)
Other versions
EP0161654A2 (de
EP0161654B2 (de
EP0161654A3 (en
Inventor
Deo Errani
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.)
CISA SpA
Original Assignee
CISA SpA
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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11107941&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0161654(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CISA SpA filed Critical CISA SpA
Priority to AT85105836T priority Critical patent/ATE51052T1/de
Publication of EP0161654A2 publication Critical patent/EP0161654A2/de
Publication of EP0161654A3 publication Critical patent/EP0161654A3/en
Application granted granted Critical
Publication of EP0161654B1 publication Critical patent/EP0161654B1/de
Publication of EP0161654B2 publication Critical patent/EP0161654B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0042Cylinder 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
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0053Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in for use with more than one key, e.g. master-slave key

Definitions

  • This invention relates to a flat key cylinder lock with anti-burglar features particularly for use with master key locking systems according to the preamble of Claim 1.
  • Locks of this type are known, for example, from German Patent No. 2,003,059, and 1,260,340, in which the auxiliary pins are arranged to extend perpendicularly to the plane of the key.
  • the pin action results from that, on the pins being slided sideways by the key being pushed in, they move out of the plug outer surface to engage in recesses formed in the cylindrical casing in which the plug is received rotatably.
  • the proper key is formed with notches which, on the key being inserted into the lock, enable the auxiliary pins to retract by reaction effect as the plug is rotated. The pin retraction is facilitated by the crowned shape of the recesses.
  • auxiliary pins The burglar resisting ability of the known auxiliary pins is, in actual practice, rather unreliable because it can be easily overcome by effecting removal thereof lengthwise to the key profile at the areas abutting the auxiliary pins, that is by milling out the key flanks longitudinally, thereby the pins are allowed to slide freely in their seats.
  • a deceptively machined key referred to in the jargon as a "relieved” key
  • a lock according to the above disclosure has the disadvantage that when the lock is made fast in the rotated position, the bogus key cannot be removed and the lock is rendered unreusable.
  • German Patent Application No. 3,014,183 upon which the preamble of Claim 1 is based, discloses a lock having auxiliary pins cooperating with interference pins or balls that engage recesses in the outer casing to prevent the rotation of the plug.
  • the auxiliary and interference pins are shaped so as to enable rotation of the plug when the key is inserted but not when it is removed.
  • this lock comprises a cylindrical casing 1, on the interior of which a cylindrical plug 2 is set rotatably.
  • the cylindrical plug 2 is formed, in a known manner no further illustrated herein, with a lengthwise channel or flute 3 having a shaped profile to receive the operating key, as well as with a plurality of holes 4 aligned on a longitudinal plane coinciding with the lock centreplane and accommodating the usual pins or bolt pins which, in cooperation with the counter-pins, are driven by the lock actuating key.
  • the plug 2 has additional holes 5, 6 formed therein alongside the channel 3 and being oriented in a radial direction.
  • the holes 5, 6 extend in plane containing an axis substantially, but do not necessarily coincide with the axis of the plug 2.
  • the holes 5, 6 are aligned with recesses 7, 8 in the form of longitudinal grooves having an arcuate cross- section and being formed on the inner walls of the casing 1.
  • the hole 5 is in communication with the channel 3 and accommodates a cylindrical pin 9 having each of its opposed ends configured as a spherical cap.
  • a hole 10 is also formed in the plug 2 which intersects the hole 6 orthogonally thereto and opens into the channel 3.
  • the hole 10 is closed on the side of the casing 1 by a pellet or plug nut 11 force fitted to provide support for a compression spring 12 which penetrates, with its opposed end, a recess formed in a pin 13 guided in the hole 10.
  • the pin 13 is provided at one end with a flange 14 which, owing to the bias force applied by the spring 12, is held at one end against a shoulder of the hole 10, and at the other end, with a hemispherical head 15 merging with the cylindrical body of the pin 13 through a conical collar 16.
  • the abutment shoulder for the flange 14 in the hole 10 is positioned such that the hemispherical head 15 partially protrudes into the channel 3. Further, the depth of the hole 6, when combined with that of the recess 8, will equal the diameter of the hole 6, so that it can accommodate a ball 17 of the same diameter.
  • the lock just described is operated by means of a key having side notches arranged such that, with the key inserted into the channel 3, each notch faces one hole 5 to receive the pin 9. Furthermore, the key can act with its flanks directly on the pins 13 and push them back into the holes 10 against the bias of the spring 12.
  • the plug 2 is inhibited from turning by, in addition to the actions of the pins and counter-pins housed in the holes 4, by the locking action of the ball 17 which cannot retract into the hole 6 owing to the pin 13 blocking it from moving.
  • the pins 9 On inserting the proper key into the channel 3, the pins 9 retain their freedom of movement due to the provision of corresponding notches on the key which enable the pins 9 to penetrate the channel 3. Simultaneously, the key flanks push into the holes 10 the pins 13, thereby the ball cannot move down the conical region 16 and stop against the spherical head 15, thus disengaging from the recess 8. Owing to the pins in the holes 4 being positined by the key dents in the shear plane between the plug 2 and casing 1, the plug 2 may now be turned.
  • the inhibiting function is assumed by at least one of the pins 9 being pushed back into the recess 7 to the plug blocking position.
  • the lock can provide a better safeguard than traditional ones, since the auxiliary pins not only widen the range of key coding, but also compel any ill-intentioned person surreptitiously attempting to pick the lock to manipulate pins which are difficult to locate.
  • the pin 9 is replaced by a ball 18 and a pin 19.
  • the ball 18 is accommodated in a radial hole 20 which intersects the hole 21 perpendicularly wherein the pin 19 is slidable.
  • the hole 21 is symmetrical to the hole 10 and opens into the channel 3 for the key at a position which need not necessarily be juxtaposed to the hole 10.
  • the pin 19 is provided with a flange 22 and an annular groove 23 defined by two flaring walls 24.
  • the flange 22, similarly to the flange 14, is urged against a shoulder in the hole 21 by a spring 25 which rests on a plug nut 26 in the hole 21.
  • the ball 18 With the proper key, the ball 18 will be facing the groove 23 and is free to move in the hole 20, disengaging from the recess 7 and allowing the plug 2 to be rotated.
  • the key has recesses wherein the pin 19 can fit too deeply or has no recesses, the ball 18 will remain in tangent contact with the periphery of the pin 19, while in engagement with the recess 17 and preventing the plug 2 from rotating.
  • FIG 4 lastly, there is shown an embodiment wherein the cylindrical springs 12 are replaced with leaf springs 29 each inserted into a respective slot 30 cut through the periphery of the plug 2 perpendicularly to its axis and intersects the hole 10 diametrically.
  • the spring 29 has one end secured by a chamfer 31 of the slot and the other end acting on the pin 13 to bias it toward the position of engagement with the channel 3 for the key.
  • One of the basic features of the inventive locks is that they enable the fabrication of so-called master key systems, wherein the locks may be operated in conformity with hierarchically different levels, in the sense that keys of a hierarchically higher level can operate locks of lower levels, but not vice versa. Diversification may be achieved by intervention on the key flanks and respective side pins. Thus, the highest key in the hierarchy will have notches for receiving the pins 9 and lands for pushing back the pins 13 of all the locks.
  • the lower level locks may have one or more auxiliary pins 9, 13 missing.
  • the hierarchy to be obtained with the auxiliary pins may be combined with that to be obtained with the usual pins and counter-pins, thereby a much differentiated hierarchical scale can be provided.

Landscapes

  • Lock And Its Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Glass Compositions (AREA)
  • Seal Device For Vehicle (AREA)
  • Materials For Medical Uses (AREA)

Claims (3)

1. Zylinderschloß mit einem Gehäuse (1) mit einer axialen zylindrischen Bohrung, die innere Wand definiert, einem Zylinderkern (2), der drehbar in der genannten Bohrung vorgesehen ist, einem axial im Kern ausgebildeten Kanal (3) für die Aufnahme eines zugehörigen Schlüssels mit seitlichen Stegausbildungen und seitlichen Einkerbungen, Hauptzuhaltungsstifteinrichtungen und wenigstens einer ersten Hilfsarretierstiftgruppe (13, 17) im Kern und im Gehäuse, wobei die genannte Gruppe von der Art ist, die ein Arretierglied (17), das normalerweise die Drehung des Kernes in bezug auf das Gehäuse verhindert, wenn der Schlüssel aus dem Kanal entfernt wird, und ein Betätigungsglied (13) aufweist, das normalerweise in den Kanal hineinragt, um in Eingriff mit den Stegausbildungen des zugehörigen Schlüssels zu gelangen, wenn dieser in den Kanal eingesteckt ist, um dabei die Arretierwirkung der ersten Gruppe aufzuheben und dadurch eine Drehung des Kernes in bezug auf das Gehäuse zu gestatten, dadurch gekennzeichnet, daß in einem Abstand von der ersten Hilfsarretierstiftgruppe (13, 17) wenigstens eine zweite Hilfsarretierstiftgruppe (9; 18, 19) von der Art vorgesehen ist, die normalerweise eine Drehung des Kernes (2) in bezug auf das Gehäuse (1) gestattet, wenn der Schüssel aus dem Kanal (3) entnommen ist, und weiters dadurch gekennzeichnet, daß wenigstens einen der ersten Hilfsarretiergruppen (13, 17) und wenigstens eine der zweiten Hilfsarretiergruppen (9; 18, 19) an ein und derselben Seite des Kanals angeordnet sind.
2. Zylinderschloß nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Hilfsarretiergruppe einen zylindrischen Stift (9) aufweist, der verschiebbar in einer radialen Bohrung (5) des Kernes (2) angeordnet ist, welche mit einem Ende in den Schlüsselkanal (3) und mit dem entgegengesetzten Ende an der Außenfläche des Kernes, um einer in der Innenwand des Gehäuses (1) ausgebildeten Längsnut (7) gegenüberzuliegen, mündet, wobei eine Ende des Stiftes mit dem Schlüssel zusammewirkt, um bei eingestecktem Schlüssel in die Einkerbungen desselben einzugreifen und eine freie Drehung des Kernes in bezug auf das Gehäuse zu gestatten, und das entegegengesetzte Ende in die Längsnut eingreift, wenn ein Nachschlüssel eingestekt wird, um den Kern am Gehäuse zu verriegeln.
3. Zylinderschloß nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Hilfsarretiergruppe eine radiale Bohrung (20) aufweist, die im Kern (2) ausgebildet ist und von der ein Ende an der Außenfläche des Kernes mündet, um einer in der Innenwand des Gehäuses (1) ausgebildeten Längsnut (7) gegenüberzuliegen, und das entgegengesetzte Ende in eine Querbohrung (21) mündet welche die radiale Bohrung (20) schneidet und in den Schlüsselkanal (3) ausmündet, wobei eine Kugel (18) beweglich in der radialen Bohrung angeordnet ist und ein Stift (19) verschiebbar in der Querbohrung (21) geführt ist und mittels einer Feder (25) in eine Normalstellung, in welcher ein Ende des Stiftes in den Schlüsselkanal hineinragt, gedrückt wird, wobei der Stift eine Ringnut (23) besitzt, welche der radialen Bohrung gegenüberliegt, um die Kugel (18) aufzunehmen, wenn sich der Stift in der genannten Normalstellung befindet, um eine freie Bewegung des Kernes in bezug auf das Gehäuse zu gestatten, welcher Stift, wenn ein Nachschlüssel in den Schlüsselkanal eingestekt wird, die Kugel in den Eingriff mit der Längsnut drückt, um den Kern am Gehäuse zu verriegeln.
EP85105836A 1984-05-17 1985-05-13 Diebstahlsicheres Zylinderschloss, insbesondere für Systeme mit Haupt- und Nebenschlüsseln Expired - Lifetime EP0161654B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105836T ATE51052T1 (de) 1984-05-17 1985-05-13 Diebstahlsicheres zylinderschloss, insbesondere fuer systeme mit haupt- und nebenschluesseln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT346884 1984-05-17
IT03468/84A IT1179338B (it) 1984-05-17 1984-05-17 Serratura a cilindro con chiave piatta premunita contro i tentativi di effrazione e per la realizzazione di impianti a chiave maestra

Publications (4)

Publication Number Publication Date
EP0161654A2 EP0161654A2 (de) 1985-11-21
EP0161654A3 EP0161654A3 (en) 1986-09-17
EP0161654B1 true EP0161654B1 (de) 1990-03-14
EP0161654B2 EP0161654B2 (de) 1994-06-22

Family

ID=11107941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105836A Expired - Lifetime EP0161654B2 (de) 1984-05-17 1985-05-13 Diebstahlsicheres Zylinderschloss, insbesondere für Systeme mit Haupt- und Nebenschlüsseln

Country Status (5)

Country Link
EP (1) EP0161654B2 (de)
AT (1) ATE51052T1 (de)
DE (1) DE3576546D1 (de)
ES (1) ES8607463A1 (de)
IT (1) IT1179338B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8915107B2 (en) 2009-10-21 2014-12-23 Abus Pfaffenhain Gmbh Locking system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079936A (en) * 1989-03-31 1992-01-14 Folger Adam Company High security cylinder lock
ATE197186T1 (de) * 1996-01-08 2000-11-15 Ikon Ag Praez Stechnik Schliesszylinder
US6526791B2 (en) * 2001-02-26 2003-03-04 Arrow Lock Manufacturing Company High security cylinder lock and key
DE102004021580B3 (de) * 2004-05-03 2005-11-10 Wilka Schließtechnik GmbH Aus Schlüssel und Schließzylinder bestehende Schließvorrichtung
IL191855A0 (en) 2008-06-01 2009-02-11 Multi Key Ltd Rav Mafteah Ltd Key, lock and locking mechanism
CN102112689B (zh) 2008-06-05 2014-05-14 阿谢尔·哈维夫 圆筒保护系统
DE102014001883A1 (de) * 2014-02-10 2015-08-13 Assa Abloy Sicherheitstechnik Gmbh Schloss-Schlüssel-System
US11536047B1 (en) 2022-08-22 2022-12-27 Winloc Ag Key plug, a cylinder lock, a cylinder lock and key combination and a method to manufacture a key plug
US11542724B1 (en) 2022-08-22 2023-01-03 Winloc Ag Key blank, a key, and a cylinder lock and key combination
US11613909B1 (en) 2022-08-22 2023-03-28 Winloc Ag Key blank, a coded key and a cylinder lock and key system with improved stop arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260340B (de) * 1963-12-18 1968-02-01 Winkhaus Fa August Zusaetzliche, einteilige Sperrglieder in einem Drehzylinderschloss ueblicher Bauart
AT371196B (de) * 1979-11-28 1983-06-10 Evva Werke Schloss mit einem zylinderkern und einem zylindergehaeuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8915107B2 (en) 2009-10-21 2014-12-23 Abus Pfaffenhain Gmbh Locking system

Also Published As

Publication number Publication date
EP0161654A2 (de) 1985-11-21
EP0161654B2 (de) 1994-06-22
ES8607463A1 (es) 1986-06-16
ES543902A0 (es) 1986-06-16
DE3576546D1 (de) 1990-04-19
EP0161654A3 (en) 1986-09-17
IT1179338B (it) 1987-09-16
ATE51052T1 (de) 1990-03-15
IT8403468A0 (it) 1984-05-17

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