EP0161654B2 - 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
EP0161654B2
EP0161654B2 EP85105836A EP85105836A EP0161654B2 EP 0161654 B2 EP0161654 B2 EP 0161654B2 EP 85105836 A EP85105836 A EP 85105836A EP 85105836 A EP85105836 A EP 85105836A EP 0161654 B2 EP0161654 B2 EP 0161654B2
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EP
European Patent Office
Prior art keywords
channel
key
plug
locking
auxiliary
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
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EP85105836A
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English (en)
French (fr)
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EP0161654A3 (en
EP0161654B1 (de
EP0161654A2 (de
Inventor
Deo Errani
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CISA SpA
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CISA SpA
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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
Publication of EP0161654B1 publication Critical patent/EP0161654B1/de
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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
    • E05B27/0042—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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0053—Cylinder 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-secondary 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
  • the relieved bogus key has on the same side thereof either a deceptive continuous longitudinal land formation or a deceptive continuous longitudinal groove formation on the appropriate height of the key determined after a deceptive external exploration of the key channel of the lock to be subjected to burglary.
  • 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 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.
  • AT-B-371 833 generically hints that different types of auxiliary locking units may be used in a lock.
  • 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 hole 6 is part of a first type of auxiliary locking pin unit described below and the hole 5 is part of a second type of auxiliary locking pin unit.
  • 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.
  • pin 9 has an actuation surface portion 9a projecting into the channel 3 and a locking formation 9b normally out of engagement with the recess 7.
  • 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 hemispherical head 15 provides an actuation surface portion normally protruding into the channel 3.
  • 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 ball 17 provides a locking formation normally in engagement with the recess 8 to exert a locking action between plug 2 and casing 1.
  • auxiliary locking pin units on the same side of the channel 3 two different types are provided, i.e. a first type including the radial hole 6, the ball 17, the transverse hole 10 and the pin 13 and on the same side a second type of auxiliary locking pin unit including the radial hole 5 and the pin 9.
  • 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 i.e. actuating land portions thereof push into the holes 10 the pins 13, thereby the ball can 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 auxili- ary 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 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.
  • 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)
  • 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)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (3)

1. Zylinderschloß, das von einem Nachschlüssel nicht schließbar ist, der mit durchgehenden seitlichen Längsnut- ausbildungen und durchgehenden seitlichen Längsbundausbildungen in täuschender Absicht versehen ist', wobei das Zylinderschloß aufweist:
a) ein Gehäuse (1) mit einer axialen zylindrischen Bohrung zum Definieren einer Innenwand, einem drehbar in der Bohrung angeordneten Zylinderkern (2), einem axial in dem Kern ausgebildeten Kanal (3) zum Einführen eines passenden Schlüssels mit seitlichen Bundausbildungen und seitlichen Nutausbildungen, Hauptzuhalterstiftmittel, mindestens einer ersten Hilfsarretierstifteinheit (13,17) in den Kern und in dem Gehäuse, wobei die erste Hilfseinheitvon der Art ist, die ein mit dem Kern (2) und dem Gehäuse (1) zusammenwirkendes Arretierglied (17) aufweist, das zwischen einer eine Drehung des Kerns gegenüber dem Gehäuse verhindernden Arretierposition und einer die Drehung des Kerns gegenüber dem Gehäuse zulassenden Freigabeposition positionierbar ist, wobei die erste Hi Ifseinheitferner ein Steuerglied (13) in dem Gehäuse (2) zum Steuern der Position des Arretiergliedes (17) aufweist, wobei das Steuerglied (13) ein Betätigungsteil (15) aufweist, das von Bundausbildungen des passenden Schlüssels betätigt wird, wobei das Betätigungsteil (15) normalerweise in den Kanal (3) in einervorbestimmten Höhe des Kanals (3) hineinragt, wenn der passende Schlüssel aus dem Kanal entfernt ist und wenn das Arretierglied (13) von dem Steuerglied (13) so positioniert ist, daß eine Drehung des Kerns gegenüber dem Gehäuse verhindert ist, wobei das Steuerglied (13) das Arretierglied (17) freigibt, um in die Freigabeposition zu gelangen, wenn das Betätigungsteil (15) des Steuergliedes (13) mit einer Bundausbildung des passenden Schlüssels in Eingriff gerät, wenn der passende Schlüssel in den Kanal (3) eingeführt wird und b) wobei das Zylinderschloß ferner mindestens eine zweite Hilfsarretierstifteinheit (18, 19) von einer Art aufweist, die sich von der ersten Hilfsarretierstifteinheit unterscheidet, dadurch gekennzeichnet, daß
c) mindestens eine der ersten Hilfsarretierstifteinheit (13, 17) und mindestens eine der zweiten Hilfsarre- tierstifteinheit (9, 18, 19) sind beide auf der gleichen Seite des Kanals (3) in einem gegenseitigen axialen Abstand angeordnet,
d) die zweite Hilfsarretierstifteinheit (9, 18-19) weist ein Arretierglied (9, 18) und ein Betätigungsteil (9a, 19) auf, wobei das Arretierglied (9,18) zwischen einer Freigabeposition, die eine Drehung des Kerns (2) gegenüber dem Gehäuse (1) zuläßt, und einer Arretierposition, die eine Drehung des Kerns (2) gegenüber dem Gehäuse (1) verhindert, positionierbar ist,
e) das Betätigungsteil (9a, 19) ragt in den Kanal (3) i m wesentlichen mit der gleichen Höhe des Kanals (3) hinein, wenn das Arretierglied (9, 18) in der Freigabeposition ist, sowohl wenn der passende Schlüssel aus dem Kanal entfernt, als auch wenn er in den Kanal (3) eingeführt wird, und wobei die Nutausbildungen auf dessen gleicher Seite an dem Betätigungsteil (9a, 19) der zweiten Hilfsstifteinheit (9, 18, 19) vorbei gehen,
f) wodurch beim Einführen des passenden Schlüssels in den Kanal (3) eine Bundausbildung auf der gleichen Seite des passenden Schlüssels mit dem Betätigungsteil (15) der ersten Hilfsarretiereinheit (13, 17) in Eingriff gerät, die auf der gleichen Seite des Kanals in einem axialen Abstand von der zweiten Hilfsarretierstifteinheit (9, 18, 19) angeordnet ist, wodurch das Arretierglied (17) freigegeben wird, so daß sowohl das Arretierglied (9) der zweiten Hilfsarretierein- heit und das Arretierglied (17) der ersten Hilfsarretierein- heit auf der gleichen Seite des Kanals in ihren Freigabepositionen sind und eine Drehung des Kerns gestatten,
g) das Arretierglied (9, 18) der zweiten Hilfsarretierstifteinheit ist in seiner Arretierposition positio- niert, wenn eine täuschende kontinuierliche Längsbundausbildung eines ersten Nachschlüssels mit dem Betätigungsteil (9a, 19)derzweiten Hilfsarretiereinheitin Eingriff gerät, wenn der erste Nachschlüssel in den Kanal (3) eingeführt wird und das Arretierglied (17) der ersten Hilfsarretierstifteinheit (13, 17), die auf der gleichen Seite des Kanals (3) angeordnet ist, in ihrer Freigabeposition positioniert wird, wenn die täuschende seitliche Längsbundausbildung des ersten Nachschlüssels mit dem Betätigungsteil (15) des Arretiergliedes (17) auf dergleichen Seite des Kanals (3) in Eingriff gerät,
h) wodurch nur die zweite Hilfsarretiereinheit (9, 18-19) die Drehung des Kerns (2) verhindert, wenn der erste Nachschlüssel mit täuschenden kontinuierlichen Längsbundausbildungen der gleichen Seite des Kanals (3) zugekehrt in den Kanal (3) eingeführt wird, k) das Arretierglied (9, 18) der zweiten Arretierstifteinheit in seiner Freigabeposition positioniert wird, wenn eine täuschende kontinuierliche seitliche Längsnutausbildung eines zweiten Nachschlüssels an dem Betätigungsteil (9a, 19) der zweiten Hilfsarretiereinheit vorbeigeht, wenn der zweite Nachschlüssel in den Kanal (3) eingeführt wird und das Arretierglied (17) der ersten Hilfs- arretierstifteinheit, die auf der gleichen Seite des Kanals (3) in einem axialen Abstand von der zweiten Hilfsarretierstifteinheit (9, 18-19) angeordnet ist, in seinerArretierposition positioniert wird, wenn die Nutausbildung dieses Nachschlüssels an dem Betätigungsteil (15) des auf der gleichen Seite des Kanals (3) angeordneten Arretiergliedes (17) vorbeigeht, I) wodurch nur die erste Hilfsarretierstifteinheit (17, 13) die Drehung des Kerns (2) verhindert, wenn der zweite Nachschlüssel mit täuschenden kontinuierlichen seitlichen Längsnutausbildungen, die dergleichen Seite des Kanals (3) zugekehrt sind, in den Kanal eingeführt wird.
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 ein 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
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
IT346884 1984-05-17

Publications (4)

Publication Number Publication Date
EP0161654A2 EP0161654A2 (de) 1985-11-21
EP0161654A3 EP0161654A3 (en) 1986-09-17
EP0161654B1 EP0161654B1 (de) 1990-03-14
EP0161654B2 true 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
DK0873459T3 (da) * 1996-01-08 2000-11-20 Ikon Ag Praez Stechnik Låsecylinder
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
US8261587B2 (en) 2008-06-05 2012-09-11 Asher Haviv Cylinder protective system
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
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
US11542724B1 (en) 2022-08-22 2023-01-03 Winloc Ag Key blank, a key, and a cylinder lock and key combination

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
EP0161654A3 (en) 1986-09-17
EP0161654B1 (de) 1990-03-14
IT1179338B (it) 1987-09-16
ATE51052T1 (de) 1990-03-15
ES543902A0 (es) 1986-06-16
DE3576546D1 (de) 1990-04-19
EP0161654A2 (de) 1985-11-21
ES8607463A1 (es) 1986-06-16
IT8403468A0 (it) 1984-05-17

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