EP1217151B1 - Profilsystem für den Querschnitt von Flachschlüsseln - Google Patents

Profilsystem für den Querschnitt von Flachschlüsseln Download PDF

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Publication number
EP1217151B1
EP1217151B1 EP01890016A EP01890016A EP1217151B1 EP 1217151 B1 EP1217151 B1 EP 1217151B1 EP 01890016 A EP01890016 A EP 01890016A EP 01890016 A EP01890016 A EP 01890016A EP 1217151 B1 EP1217151 B1 EP 1217151B1
Authority
EP
European Patent Office
Prior art keywords
key
profile
grooves
variation
groove
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
EP01890016A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1217151A1 (de
Inventor
Heinz Luef
Markus Ing. Kornhofer
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.)
Kaba GmbH
Original Assignee
Kaba GmbH Austria
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 Kaba GmbH Austria filed Critical Kaba GmbH Austria
Publication of EP1217151A1 publication Critical patent/EP1217151A1/de
Application granted granted Critical
Publication of EP1217151B1 publication Critical patent/EP1217151B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E05B19/0029—Key profiles characterized by varying cross-sections of different keys within a lock system
    • 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
    • E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
    • E05B27/006—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance whereby a small rotation without the correct key blocks further rotation of the rotor

Definitions

  • the invention relates to lock cylinder and flat key with a profile for the cross section of the flat key and with an associated profile for the cross section of the keyway in the cylinder core of the lock cylinder, wherein the flat key has a toothing on the key breast for positioning of core and housing pins, wherein the profile overlapped guide profile of oppositely directed profile elements, namely ribs in the keyway and grooves in the flat key has, said guide profile is provided in the central region of the cross section between the key back and keychain where the head ends of the core pins lie in the cylinder core and wherein both sides of the guide profile variation profile elements are provided ,
  • a locking system emanates from a within a system always unchanged, arranged in the central region of the key cross section and the key channel cross-section, overlapped guide profile. Both the area in the direction of the key back and towards the key-chest area can be used for the variation profile.
  • This tripartite division of the profile cross-section with the invariant overlapped guide profile in the middle region has the advantage that the head ends of the core pins are covered by the overlapping profile ribs of the key channel in all system cylinders and thus are not or hardly accessible for scanning.
  • profile grooves on the key or profile ribs in the keyway are known, which are inclined at an acute angle to the longitudinal center plane of the respective profile. According to DE 33 14 511 C2, the right angles to the groove base, acute angle inclined side walls of each groove are parallel to each other. In the opposite flat sides of the acute angle of the side walls are opposite to each other.
  • the invention aims to complicate the copying of a key as well as the scanning, in particular with the transmission of vibrations to the tumbler pins so that it is omitted.
  • This is achieved in that both flanks of each groove or rib of the guide profile include different acute angles ( ⁇ 1, ⁇ 2) in the same direction per groove or rib to the profile central axis, wherein the grooves or ribs are formed as undercut grooves or ribs, and in that the acute-angled flanks of the groove or rib remote from the spine of the overlapped profile elements are oriented in the direction of the spine of the key.
  • the surfaces of the flanks of the grooves or ribs which are remote from the key breast or the core pins, to have recesses, for example channels, which extend in the longitudinal direction of the key bit or of the key channel. In these indentations, the styli are caught so that they do not reach the core pins.
  • the surface lying on the groove bottom of the guide prefinute grooves or the variation profile grooves to be aligned approximately perpendicular to the angular symmetry of the groove flanks of the guide profile grooves or the variation profile grooves.
  • the variation profile elements in cross section could also represent parallelograms.
  • the reworking of a key is made more difficult in the undercut grooves when lying on the groove bottom of incidentsprofilnuten or the Variationsprofilnuten Surface is aligned parallel to the longitudinal center plane of the flat key. If the cross-sectional shape of the flat key and the keyway approximately trapezoidal shape with the key bit or toward the core pins towards converging side walls, then a sampling in the ever closer to the core pin key channel, especially in undercut profiles increasingly difficult.
  • a particular embodiment of the invention is characterized in that a safety slide is provided in the cylinder core perpendicular to the key or key channel plane carrying at least a portion of the undercut rib of the guide profile of the key channel to form a positive connection with the key at its key channel side or head end and which rests with its foot-side end on the bore wall of the cylinder housing for the cylinder core and that in the cross-sectional plane of the safety slide in the rail area of its foot-side end or immediately at the foot end in the bore wall of the housing a recess is provided, into which the slider foot at a radial Displacement dips and turning, in particular a further rotation of the cylinder core locks.
  • the safety slide the recess in the housing bore is directly opposite and that the safety slide of the undercut groove or rib of the key in the radial direction perpendicular to the key channel plane positionable, retractable from the depression and is fixable in position.
  • the undercut groove can grasp the slide in a form-fitting manner and pull in the direction of the further insertion movement in the direction of the key channel center plane.
  • the inner edge of the undercut groove could be aligned somewhat obliquely from the key tip to the cross-sectional central plane. In this way, the slider is withdrawn from its locking the rotation of the cylinder core initial position in the cylinder core, so the cylinder core "unlocked" during the key slot.
  • the invention further relates to a locking system with such lock cylinders and flat keys.
  • the profile system is based on the overlapped, centrally located in the profile cross-section, undercut guide profile. Any variation profile elements can be used to construct a locking system above and below the guide profile. Particularly difficult in terms of spare key production, it is when the provided on both sides of the guide profile on the walls of the keys and key channels Variationsprofilelemente assign by passing or removing keys to a lock cylinder in terms of a predeterminable lock rating or exclude a lock cylinder, grooves or ribs with flanks are, whose flank angle per groove or rib to the profile central axis are formed in particular as different sized acute angle in the same direction.
  • the orientation of the grooves or ribs with respect to the guide profile may represent a further special feature, in particular if the acute angle of the undercut grooves or ribs on both sides of the guide profile are oriented opposite to each other.
  • the undercut grooves can be designed differently.
  • the hierarchically graduated variation profile within the locking system with an invariant guidance profile for access authorization has variation jumps in cross-section, the difference surfaces of variation jump being always the same for the next variation jump in each case.
  • An imitation of a key is further complicated if the structure of the variation profile has a profile grid with at least two different geometric shapes.
  • the invention also relates to a flat key, in particular system key with key back, toothed key breast and a profiled cross section containing an overlapped guide profile in the central region of the cross section and on both sides of the flat sides of the key back as well as the key chest variation profile elements is characterized recognizable by the features of the invention in that the two flanks of each of the overlapping grooves of the guide profile enclose different acute angles ( ⁇ 1, ⁇ 2) in the same direction to the profile central axis and are formed as undercut grooves and that the acute-angled flanks orient the groove remote from the key back in the direction of the key back are.
  • FIG. 1 shows a cross section through a key blank of a flat key with a guide profile according to the invention
  • FIG. 2 shows an alternative embodiment to FIG. 1
  • FIG. 3 shows a cross section according to FIG. 1 with variation profiles
  • Fig. 6, 7 and 8 each individual system key from the systems of FIG. 3, 4 and 5
  • Figure 9 shows a lock cylinder in cross-section, with the right key and with a profile-controlled safety slide
  • Fig. 10 shows an embodiment similar to FIG 9 with wrong key in the blocking position by the safety slide.
  • a profile system for the construction of locking systems concerns both the key profile cross sections and the key channel cross sections of the lock cylinder. All profile systems have in common that the keys are accurately positioned in the key channel by a guide profile that is always constant within a system ("invariant") and that, moreover, a variation profile system is provided both on the key and on the key channel cross section. Whenever the key channel cross section is the same or forms the envelope of the key cross section, the key can be inserted into the key channel.
  • FIG. 1 shows a cross section for a key blank or for a key channel with a guide profile.
  • This comprises two mutually overlapping grooves 1, 2 for the key or ribs for the key channel, the flanks of each acute angle ⁇ 1 and ⁇ 2 to the profile center line lock in.
  • This results in undercuts in the grooves and ribs.
  • Such undercuts are difficult to produce when imitating a key and omitted in the usual copy milling a key profile.
  • the overlapped, undercut guide profile lies in the middle region of the key or key channel cross section. For the key channel this means that the grooves 1, 2 corresponding ribs in the region of the end faces of the core pins of the cylinder core of the lock cylinder.
  • a needle which is guided as a scanning tool for moving the core and housing pins, eg by the Hobbian method of a burglar in the keyway, undergoes a deflection through the tread ribs in Fig. 1 to the right to the side.
  • the expected result is not achieved, since the oscillating needles are deflected and held in a lateral position without function.
  • Fig. 1 the key blank or the key channel is shown with slightly inclined side walls.
  • a rejuvenation of the profile to the key-chest or towards the core-pins means a further complication of the scanning.
  • the flanks of the grooves 1, 2 or in particular the flanks of the ribs representing the negative to the grooves are profiled by longitudinal elevations or grooves 3. These grooves or ribs hold or obstruct the styli, further complicating the scanning.
  • Fig. 3 from the invariant guide profile always present in a locking system starting on both sides thereof each variation profile elements 4, 5, 6 7 are located. These are shown as a grid and show all available variations.
  • FIG. 6 shows a profile or cross section of a system key from the profile system according to FIG. 3.
  • the Variationsprofilnuten 4 '(as a double groove), 5' and 6 'realized A key channel in which this key fits must either be the negative to represent this key according to Fig. 6 or envelop the key profile with its outline.
  • FIG. 4 shows a system key in profile cross-section from the profile system according to FIG. 4. In addition to the constitutive power supply, the Variationsprofilnuten 8 ', 9' and 10 'are realized.
  • FIG. 5 A particularly interesting profile system is shown in Fig. 5.
  • Fig. 5 again shows all the possible variations of this system grid-like superimposed.
  • a locking system is constructed according to the known criteria.
  • a system key from the profile system of Fig. 5 is shown in Fig. 8.
  • the profile elements 12 ', 13', 14 'and 15' realized, the latter represent undercut grooves in the key or undercut ribs in the keyway.
  • Fig. 9 cooperating with the undercut guide groove 1 safety slide 16 is shown.
  • This is slidably mounted in a cylinder core 17 in the vertical direction to the keyway 18.
  • a spring 19 brings a bias in the radial direction outward (arrow) on the safety slide 16.
  • the safety slide 16 is formed at its head end with a portion of the undercut rib 20, which corresponds to the undercut groove 1 of the guide profile at the key. This rib 20 forms part of the profiling of the keyway 18.
  • the foot end of the safety slide 16 bears against the bore wall of the cylinder housing 21 with the bias of the spring 19.
  • the matching key 22 is inserted into the keyway 18, then the undercut of the groove 1 engages behind the undercut head area, namely the rib 20 on the safety slide 16.
  • the safety slide 16 is held in its position shown in FIG do not move radially under the action of the spring 19.
  • the safety slide 16 can thus not immerse in a recess 23, which is provided in a certain extent as a "trap" in the cross-sectional plane of FIG. 9 in the cylinder housing 21.
  • Fig. 10 shows the situation with a lock cylinder equipped in this way if a wrong key 24 with conventional profiling is used. If the toothing of such a key 24 is correct, then the cylinder core 17 may be slightly twisted. However, the groove 1 'is not undercut and therefore does not hold the safety slide 16 on the head side. The safety slide 16 thus does not hook on the key profile and has a degree of freedom in the direction of the action of the spring 19. During rotation of the cylinder core by the key thus slides the safety slide 16 with its foot on the bore wall of the cylinder housing 21 along until it at the end of Well 23 strikes. A further turning and thus unlocking is thus prevented. If such a recess 23 is also provided in mirror image on the bore wall, then a locking is prevented with the wrong profiled key. Through the inlet slope to the recess 23 turning back and removing the wrong key 24 is possible.
  • the undercut groove 1 could be aligned with its undercut edge so obliquely to the profile center plane that a safety slide 16, the key 22 without immersed in a recess 23 ', in the course of the insertion movement of the key 22 on the head side hooks into the undercut groove 1 and gradually dug out of the recess 23'.
  • the undercut edge of the groove 1 converges towards the key crop towards the profile center plane.

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  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Lock And Its Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP01890016A 2000-12-22 2001-01-22 Profilsystem für den Querschnitt von Flachschlüsseln Expired - Lifetime EP1217151B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9452000U 2000-12-22
AT0094500U AT5123U1 (de) 2000-12-22 2000-12-22 Profilsystem

Publications (2)

Publication Number Publication Date
EP1217151A1 EP1217151A1 (de) 2002-06-26
EP1217151B1 true EP1217151B1 (de) 2006-06-21

Family

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EP01890016A Expired - Lifetime EP1217151B1 (de) 2000-12-22 2001-01-22 Profilsystem für den Querschnitt von Flachschlüsseln

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EP (1) EP1217151B1 (es)
AT (2) AT5123U1 (es)
DE (1) DE50110238D1 (es)
ES (1) ES2266151T3 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2522796A2 (de) 2011-05-09 2012-11-14 Aug. Winkhaus GmbH & Co. KG Schlüssel zum Schließen eines Schließzylinders
US8800333B2 (en) 2011-04-25 2014-08-12 Schlage Lock Company Llc Key and lock cylinder combination

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306371B4 (de) * 2003-02-15 2004-12-23 Wilka Schließtechnik GmbH Profilvariation an Flachschlüsseln bzw. den Schlüsselkanälen zugehöriger Schließzylinder
DE102006000122A1 (de) * 2006-03-17 2007-09-20 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder und Schließzylinder für einen solchen Schlüssel
DE102008000033A1 (de) * 2008-01-10 2009-07-16 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder
DE102010012261B4 (de) * 2010-03-22 2015-08-20 Abus Pfaffenhain Gmbh Schließsystem
DE102010017165B4 (de) * 2010-05-31 2013-04-04 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Verfahren zum Profilieren eines Wendeflachschlüssels sowie nach dem Verfahren gefertigter Wendeflachschlüssel aufbauend auf einem Wendeflachschüsselprofil
UA110828C2 (uk) * 2011-05-02 2016-02-25 Каба Гмбх Плоский ключ для циліндра замка й циліндр замка
EP3097243B1 (en) * 2015-04-09 2018-10-31 Cisa S.p.a. Cylinder lock and key in combination with the cylinder lock
DE102018101438A1 (de) * 2018-01-23 2019-07-25 Assa Abloy Sicherheitstechnik Gmbh Flachschlüsselprofil für ein Schloss-Schlüssel-System
DE102019127257A1 (de) * 2019-10-10 2021-04-15 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Schließeinrichtung

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
AT358951B (de) 1977-06-23 1980-10-10 Grundmann Gmbh Geb Verschlussanlage auf zylinderschlossbasis
DE3314511C2 (de) 1983-04-21 1986-09-11 Fa. Wilhelm Karrenberg, 5620 Velbert Schließvorrichtung, bestehend aus Schließzylinder mit Stiftzuhaltungen und Schlüssel
DE4035934C2 (de) * 1989-11-30 1995-07-20 Wilka Schliestechnik Gmbh Aus Schlüssel und Schließzylinder bestehende Schließvorrichtung
SE505364C2 (sv) * 1993-12-30 1997-08-11 Bo Widen Cylinderlås-nyckelkombination, nyckel, nyckelämne och lås
AT407548B (de) * 1996-01-10 2001-04-25 Kaba Gege Gmbh Schliesszylinder und bzw. oder flachschlüssel
DE19800733A1 (de) * 1998-01-12 1999-07-15 Schulte Zylinderschl Gmbh Querschnittsprofil eines Flachschlüssels oder des Schlüsselkanals eines zugehörigen Schließzylinders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800333B2 (en) 2011-04-25 2014-08-12 Schlage Lock Company Llc Key and lock cylinder combination
EP2522796A2 (de) 2011-05-09 2012-11-14 Aug. Winkhaus GmbH & Co. KG Schlüssel zum Schließen eines Schließzylinders
DE102011075486A1 (de) 2011-05-09 2012-11-15 Aug. Winkhaus Gmbh & Co. Kg Schlüssel zum Schließen eines Schließzylinders

Also Published As

Publication number Publication date
AT5123U1 (de) 2002-03-25
EP1217151A1 (de) 2002-06-26
ATE331103T1 (de) 2006-07-15
ES2266151T3 (es) 2007-03-01
DE50110238D1 (de) 2006-08-03

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