EP0873459B1 - Lock barrel - Google Patents

Lock barrel Download PDF

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Publication number
EP0873459B1
EP0873459B1 EP97906997A EP97906997A EP0873459B1 EP 0873459 B1 EP0873459 B1 EP 0873459B1 EP 97906997 A EP97906997 A EP 97906997A EP 97906997 A EP97906997 A EP 97906997A EP 0873459 B1 EP0873459 B1 EP 0873459B1
Authority
EP
European Patent Office
Prior art keywords
core
locking element
longitudinal recess
cylinder
bore
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
EP97906997A
Other languages
German (de)
French (fr)
Other versions
EP0873459A1 (en
Inventor
Peter Desch
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.)
Ikon AG Prazisionstechnik
Original Assignee
Ikon AG Prazisionstechnik
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
Priority claimed from DE1996100345 external-priority patent/DE19600345A1/en
Application filed by Ikon AG Prazisionstechnik filed Critical Ikon AG Prazisionstechnik
Publication of EP0873459A1 publication Critical patent/EP0873459A1/en
Application granted granted Critical
Publication of EP0873459B1 publication Critical patent/EP0873459B1/en
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
    • E05B27/0082Side bar locking

Definitions

  • the invention relates to a lock cylinder with a cylinder core rotatably mounted therein according to the preamble of the claim.
  • Such a locking cylinder can be found, for example, in DE-A-3014183.
  • the invention has for its object the security of such Lock cylinder to further increase and simplify production.
  • the first body over the second body over the locking element keeps the parting plane pressed into the further longitudinal recess on the cylinder housing and the second body is located partially between the first body and the locking element, the geometric points of contact or lines of the second body and the locking element take self-locking angle, so that the locking element when turning second body can not push away and thus protrudes over the parting plane that the second Body is pin-shaped, with a hemisphere or a truncated cone on it the end facing the first body and a stop shoulder on the opposite End that the second core hole in the upper part is one of the stop shoulder of the second Body corresponding stop surface and that the locking element in cross section seen essentially square with a rounded corner, this being the further one Longitudinal recess is facing.
  • pin-shaped i.e. with a hemispherical surface or with a truncated cone on which the first Body facing end and a stop shoulder at the opposite end achieved that this body must travel a short stroke in order to perform the locking function to effect in the pin-shaped body to the locking element.
  • a first body 3 is moved by the profile coding on the side surface of the key, which can be designed as a ball.
  • This body interacts with a second body, which is pin-shaped and which was designated 7 'in the drawing.
  • the second body 7 ' is a hemispherical surface -or can have a truncated cone at its end facing the first body 3.
  • a stop shoulder is provided which engages the body in the Core hole 9 holds. This limits its upward movement.
  • This second body 7 ' cooperates with the locking element, which has been designated 8.
  • this locking element is in such a position retracted position that it does not have the parting planes between the cylinder core and Cylinder housing protrudes. If, on the other hand, the coding is incorrect, the first body 3 over the second body 7'- the locking element 8 moved so far that it in the Longitudinal recess 10 of the cylinder housing protrudes and thus a rotation of the Cylinder core hindered.
  • the key is designated 11 in the drawing.
  • the locking element itself is, in Cross section seen, designed so that two substantially perpendicular to each other standing surfaces are provided and a third surface connects these two surfaces, this facing the longitudinal recess 10 and the shape of the Longitudinal recess is adjusted.

Landscapes

  • Lock And Its Accessories (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Mechanical Control Devices (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Fluid-Damping Devices (AREA)
  • Pens And Brushes (AREA)

Abstract

A lock barrel with a core rotatable therein, having a keyway into which can be inserted a flat key having contour codes on its side surfaces co-operating with bodies which can move in core drillings and, if the codes match, make it possible to turn the barrel core. In said core there are a first drilling (2) for a body (3), a longitudinal aperture (4) on the outer periphery of the core in the same plane or staggered thereagainst for a locking component (8) and a second drilling (5) which opens into the first drilling (2) and the longitudinal aperture (4), second drilling in which there is a spring-loaded second body (7).

Description

Die Erfindung betrifft einen Schließzylinder mit einem darin drehbar gelagerten Zylinderkern gemäß Oberbegriff des Anspruchs.The invention relates to a lock cylinder with a cylinder core rotatably mounted therein according to the preamble of the claim.

Ein derartiger Schließzylinder ist beispielsweise der DE-A-3014183 zu entnehmen.Such a locking cylinder can be found, for example, in DE-A-3014183.

Der Erfindung liegt die Aufgabe zugrunde, die Sicherheit bei einem derartigen Schließzylinder weiter zu erhöhen und die Herstellung zu vereinfachen.The invention has for its object the security of such Lock cylinder to further increase and simplify production.

Gelöst wird diese Aufgabe erfindungsgemäß in Verbindung mit den Merkmalen des Oberbegriffs dadurch, daß in dem Zylinderkern eine vom Schlüsselkanal radial ausgehende erste Kernbohrung für einen ersten Körper vorgesehen ist, daß die Längsausnehmung bezogen auf die Mittenlinie der ersten Kernbohrung mittig hierzu oder dazu versetzt angeordnet ist, daß senkrecht zu der ersten Kernbohrung und der Längsausnehmung eine zweite Kernbohrung vorgesehen ist, die sich im wesentlichen parallel zum Schlüsselkanal erstreckt, und die sich in die erste Kernbohrung und in die Längsausnehmung öffnet und daß in der zweiten Kernbohrung ein federbelasteter zweiter Körper vorgesehen ist, der von dem ersten Körper in der ersten Kernbohrung und dem Sperrelement gegen die Federkraft verschiebbar ist, wobei die Abmessungen und Lagen der Kernbohrungen bzw. der beiden Körper und des Sperrelementes so aufeinander abgestimmt sind, daß bei falsch codiertem, d.h. nicht passendem Schlüssel der erste Körper über den zweiten Körper das Sperrelement über die Trennebene in die weitere Längsausnehmung am Zylindergehäuse gedrückt hält und sich der zweite Körper teilweise zwischen dem ersten Körper und dem Sperrelement befindet, wobei die geometrischen Berührungspunkte bzw. -Linien des zweiten Körpers und des Sperrelementes selbsthemmende Winkel einnehmen, so daß bei einem Drehversuch das Sperrelement den zweiten Körper nicht wegdrücken kann und damit über die Trennebene ragt, daß der zweite Körper stiftförmig ausgebildet ist, mit einer Halbkugelfläche oder einem Kegelstumpf an seinem dem ersten Körper zugewandten Ende und einer Anschlagschulter am gegenüberliegenden Ende, daß die zweite Kernbohrung im oberen Teil eine der Anschlagschulter des zweiten Körpers entsprechende Anschlagfläche aufweist und daß das Sperrelement im Querschnitt gesehen im wesentlichen quadratisch ist mit einer abgerundeten Ecke, wobei diese der weiteren Längsausnehmung zugewandt ist.This object is achieved according to the invention in connection with the features of General term in that in the cylinder core a radially starting from the key channel first core hole for a first body is provided that the longitudinal recess related is arranged on the center line of the first core hole in the middle or offset to that perpendicular to the first core bore and the longitudinal recess, a second core bore is provided, which extends substantially parallel to the key channel, and which in the first core hole and in the longitudinal recess opens and that in the second Core bore a spring-loaded second body is provided which in from the first body the first core bore and the locking element is displaceable against the spring force, wherein the dimensions and locations of the core holes or the two bodies and the Blocking element are coordinated so that when incorrectly coded, i.e. not suitable Key the first body over the second body over the locking element keeps the parting plane pressed into the further longitudinal recess on the cylinder housing and the second body is located partially between the first body and the locking element, the geometric points of contact or lines of the second body and the locking element take self-locking angle, so that the locking element when turning second body can not push away and thus protrudes over the parting plane that the second Body is pin-shaped, with a hemisphere or a truncated cone on it the end facing the first body and a stop shoulder on the opposite End that the second core hole in the upper part is one of the stop shoulder of the second Body corresponding stop surface and that the locking element in cross section seen essentially square with a rounded corner, this being the further one Longitudinal recess is facing.

Durch die mit dem vorliegenden Anspruch vorgeschlagenen Ausbildungen der Körper, stiftförmig, d.h. mit einer Halbkugelfläche oder mit einem Kegelstumpf, an dem dem ersten Körper zugewandten Ende und einer Anschlagschulter am gegenüberliegenden Ende, wird erreicht, daß dieser Körper eine kurze Hubbewegung zurücklegen muß, um die Sperrfunktion im stiftförmig ausgebildeten Körper zum Sperrelement zu bewirken.Due to the training of the body proposed by the present claim, pin-shaped, i.e. with a hemispherical surface or with a truncated cone on which the first Body facing end and a stop shoulder at the opposite end achieved that this body must travel a short stroke in order to perform the locking function to effect in the pin-shaped body to the locking element.

Darüber hinaus ergibt sich ein weiterer Vorteil dadurch, daß hier eine bessere oder sichere Abtastung des Profils, also der Profilcodierung am Schlüssel möglich ist. Dies ist besonders von Bedeutung bei Anlagenprofilen, da dort der Generalhauptschlüssel sehr dünn ist und dadurch nur flache Profilcodierungen aufweist, die dennoch sicher erkannt werden müssen. Schließlich ergibt sich als weiterer Vorteil eine verbesserte Drehmomentfestigkeit.In addition, there is another advantage that a better or safer one Scanning of the profile, i.e. the profile coding on the key, is possible. This is special important for system profiles, since the general master key is very thin and therefore only has flat profile codes, which must nevertheless be reliably recognized. Finally, another advantage is an improved torque resistance.

Die Erfindung soll anhand der Zeichnung erläutert werden, wobei diese in vereinfachter Darstellung einen Schließzylinder im Querschnitt zeigt.The invention will be explained with reference to the drawing, which in simplified Representation of a locking cylinder in cross section.

Durch die Profilcodierung an der Seitenfläche des Schlüssels wird ein erster Körper 3 bewegt, der als Kugel ausgebildet sein kann. Dieser Körper wirkt mit einem zweiten Körper zusammen, der stiftförmig ausgebildet ist und der in der Zeichnung mit 7' bezeichnet wurde. Im dargestellten Beispiel ist zu ersehen, daß der zweite Körper 7' eine Halbkugelfläche -oder einen Kegelstumpf an seinem dem ersten Körper 3 zugewandten Ende aufweisen kann. Am gegenüberliegenden Ende ist eine Anschlagschulter vorgesehen, die den Körper in der Kernbohrung 9 hält. Dadurch wird seine Bewegung nach oben begrenzt. Dieser zweite Körper 7' wirkt mit dem Sperrelement zusammen, das mit 8 bezeichnet worden ist.A first body 3 is moved by the profile coding on the side surface of the key, which can be designed as a ball. This body interacts with a second body, which is pin-shaped and which was designated 7 'in the drawing. In the example shown it can be seen that the second body 7 'is a hemispherical surface -or can have a truncated cone at its end facing the first body 3. At the opposite end, a stop shoulder is provided which engages the body in the Core hole 9 holds. This limits its upward movement. This second body 7 'cooperates with the locking element, which has been designated 8.

Bei passender Codierung am Schlüssel befindet sich dieses Sperrelement in einer soweit zurückgezogenen Position, daß es nicht über die Trenneben zwischen Zylinderkern und Zylindergehäuse ragt. Ist die Codierung dagegen falsch, so wird durch den ersten Körper 3 über den zweiten Körper 7'- das Sperrelement 8 soweit verschoben, daß es in die Längsausnehmung 10 des Zylindergehäuses hineinragt und damit eine Drehung des Zylinderkernes behindert.With the appropriate coding on the key, this locking element is in such a position retracted position that it does not have the parting planes between the cylinder core and Cylinder housing protrudes. If, on the other hand, the coding is incorrect, the first body 3 over the second body 7'- the locking element 8 moved so far that it in the Longitudinal recess 10 of the cylinder housing protrudes and thus a rotation of the Cylinder core hindered.

Der Schlüssel ist in der Zeichnung mit 11 bezeichnet. Das Sperrelement selbst ist, im Querschnitt gesehen, so ausgebildet, daß zwei im wesentlichen senkrecht aufeinander stehende Flächen vorgesehen sind und eine dritte Fläche diese beiden Flächen verbindet, wobei diese der Längsausnehmung 10 zugewandt ist und in ihrer Form an die Längsausnehmung angepaßt ist.The key is designated 11 in the drawing. The locking element itself is, in Cross section seen, designed so that two substantially perpendicular to each other standing surfaces are provided and a third surface connects these two surfaces, this facing the longitudinal recess 10 and the shape of the Longitudinal recess is adjusted.

Claims (1)

  1. A closing cylinder with a cylinder core (1) rotatably mounted therein, which has a key channel (6) into which a flat key (11) can be introduced which has profile codings on the side faces which cooperate with bodies displaceable in core bores which, given suitable coding, permit turning of the cylinder core, the cylinder core having on its outer periphery at least one longitudinal recess (4) extending paraxially offset relative to the axis of the closing cylinder (1) and open towards the surrounding closing cylinder housing, the axial length of which recess is greater than the diameter of the core bore or the total of the diameters of the core bores which open into the longitudinal recess (4) and wherein in the longitudinal recess (4) a locking element (8) is displaceable radially through the body or bodies between a position in which the locking element (8) lies within the outer periphery of the cylinder core and a position in which the locking element (8) partially projects across the plane of separation between the cylinder core and the cylinder housing into a corresponding additional longitudinal recess (10) in the cylinder housing,
    characterised in that
    in the cylinder core (1) a first core bore (2), which departs radially from the key channel (6), is provided for a first body (3), that the longitudinal recess (4) relative to the centre line of the first core bore (2) is arranged centrally thereto or offset thereto, that a second core bore (5) is provided at right-angles to the first core bore (2) and the longitudinal recess (4), which second bore extends substantially parallel to the key channel (6), and which opens into the first core bore (2) and into the longitudinal recess (4), and that a spring-loaded second body (7') is provided in the second core bore (5) which can be displaced against the spring force by the first body (3) in the first core bore (2) and the locking element (8), the dimensions and positions of the core bores or of the two bodies (3, 7') and of the locking element (8) being matched to one another such that for incorrectly coded keys, i.e. ones which do not fit, the first body (3) holds the locking element (8) pressed across the plane of separation into the additional longitudinal recess (10) on the cylinder housing by means of the second body (7') and the second body (7') is partially located between the first body (3) and the locking element (8), the geometric points or lines of contact of the second body (7') and of the locking element (8) adopting self-locking angles, so that if an attempt is made to turn it the locking element (8) cannot push the second body (7') away, and thus projects across the plane of separation, that the second body (7') is pin-shaped, with a hemispherical surface or a truncated cone on its end facing the first body (3) and a stop shoulder at the opposite end, that the second core bore (5) has in its upper part a stop surface corresponding to the stop shoulder of the second body (7') and that the locking element (8), viewed in cross-section, is substantially square with a rounded corner, the latter facing the additional longitudinal recess (10).
EP97906997A 1996-01-08 1997-01-08 Lock barrel Expired - Lifetime EP0873459B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996100345 DE19600345A1 (en) 1995-03-03 1996-01-08 Locking cylinder
DE19600345 1996-01-08
PCT/DE1997/000054 WO1997025501A1 (en) 1996-01-08 1997-01-08 Lock barrel

Publications (2)

Publication Number Publication Date
EP0873459A1 EP0873459A1 (en) 1998-10-28
EP0873459B1 true EP0873459B1 (en) 2000-10-25

Family

ID=7782259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97906997A Expired - Lifetime EP0873459B1 (en) 1996-01-08 1997-01-08 Lock barrel

Country Status (6)

Country Link
EP (1) EP0873459B1 (en)
JP (1) JP2000515208A (en)
AT (1) ATE197186T1 (en)
DK (1) DK0873459T3 (en)
ES (1) ES2151248T3 (en)
WO (1) WO1997025501A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021185A (en) * 1934-04-14 1935-11-19 Edwin P Hurd Lock
AT371196B (en) * 1979-11-28 1983-06-10 Evva Werke LOCK WITH A CYLINDER CORE AND CYLINDER HOUSING
IT1179338B (en) * 1984-05-17 1987-09-16 Costr It Serrature Affini Spa CYLINDER LOCK WITH FOREWORD FLAT KEY AGAINST BREAK-IN ATTEMPTS AND FOR THE IMPLEMENTATION OF MASTER KEY SYSTEMS
JPH07957B2 (en) * 1989-03-20 1995-01-11 タキゲン製造株式会社 Idling cylinder lock device
AT395262B (en) * 1989-05-31 1992-11-10 Evva Werke Cylinder lock for flat keys and an associated key
DE4205643C2 (en) * 1992-02-25 1994-10-13 Wilka Schliestechnik Gmbh Profile cylinder

Also Published As

Publication number Publication date
ATE197186T1 (en) 2000-11-15
DK0873459T3 (en) 2000-11-20
EP0873459A1 (en) 1998-10-28
ES2151248T3 (en) 2000-12-16
WO1997025501A1 (en) 1997-07-17
JP2000515208A (en) 2000-11-14

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