EP0843765A1 - Closure cylinder for a security lock - Google Patents

Closure cylinder for a security lock

Info

Publication number
EP0843765A1
EP0843765A1 EP96923807A EP96923807A EP0843765A1 EP 0843765 A1 EP0843765 A1 EP 0843765A1 EP 96923807 A EP96923807 A EP 96923807A EP 96923807 A EP96923807 A EP 96923807A EP 0843765 A1 EP0843765 A1 EP 0843765A1
Authority
EP
European Patent Office
Prior art keywords
thickening
cylinder
cylinder according
housing
locking
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.)
Granted
Application number
EP96923807A
Other languages
German (de)
French (fr)
Other versions
EP0843765B1 (en
Inventor
Ernst Keller
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0843765A1 publication Critical patent/EP0843765A1/en
Application granted granted Critical
Publication of EP0843765B1 publication Critical patent/EP0843765B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/10—Coupling devices for the two halves of double cylinder locks, e.g. devices for coupling the rotor with the locking cam
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/045—Modular casings for adjusting the length of cylinder locks

Definitions

  • the invention relates to a lock cylinder for a security lock, with a cylinder housing and at least one cylinder core rotatably mounted in a continuous housing opening, which is inserted into the housing opening from the rear and has a thickening at its rear end, with tumblers which be arranged by a socket wrench that can be inserted into a key channel and with guide means arranged on the rear of the cylinder core for coupling the cylinder core to a driver.
  • a lock cylinder of this type is known in the prior art from CH-A-674 542.
  • the cylinder core on the outside of the door has a thickening on its rear side, which makes it much more difficult to tear out the cylinder core.
  • a self-tapping steel screw is screwed into the outside of the cylinder core and very high tensile forces are exerted on the cylinder core with a pulling device attached to this screw.
  • the inventor has set himself the task of creating a locking cylinder of the type mentioned, the tensile strength of which can be individually determined and thus different security requirements can be met.
  • the locking cylinder should in particular also meet higher security requirements with regard to tensile strength.
  • a locking cylinder of the generic type the object is achieved in that an attachment is arranged on the rear side of the thickening and this has the guide means.
  • the coupling part is essentially guided at the rear of the thickening.
  • the guide slots for the coupling can thus be incorporated into this approach. This prevents the guide slot from weakening the thickening of the cylinder core, as was previously the case.
  • the cylinder core can thus be made substantially more solid, and with a shorter thickening it is possible to achieve the same level of train safety as before.
  • the extension can have a smaller diameter than the thickening. This makes it possible for the driver in which the shoulder engages to be formed with a much more stable wall.
  • the thickening is embedded in the cylinder housing and / or in an extension piece of the cylinder housing.
  • the thickening can not only be made substantially more solid, but at the same time also longer, which further increases the security against pulling off the cylinder core on the outside of the door.
  • the area for an individual adaptation to different security requirements is thus further expanded.
  • a connecting web is provided which is thickened in the area of the faceplate screw bore, this thickening being wider than a recess for the passage of the driver.
  • the thickening of the web can be realized in an advantageous manner by a piece of pipe placed on it. Further advantageous features are the subject of dependent claims.
  • Figure 1 schematically shows a partially sectioned
  • FIG. 2 shows a partial section through the locking cylinder according to FIG. 1,
  • Figure 2a shows a section along the line Ila-IIa
  • Figure 3 is a view of the lock cylinder according to
  • FIG. 4 shows a view of the rear of a cylinder half
  • Figure 5 schematically shows a partially sectioned
  • FIGS. 6 and 7 schematically illustrate the core pulling or tearing method
  • FIG. 8 shows a view of a connecting web
  • Figure 10 shows another view of the connecting web.
  • the locking cylinder 1 shown in FIGS. 1 to 4 is a so-called double locking cylinder and has two housing parts 2 and 3, which are fixedly connected to one another with a separately produced connecting web 20.
  • the housing parts 2 and 3 each have a continuous, cylindrical housing opening 11, in each of which a cylinder core 4 is mounted.
  • At least one cylinder core 4 on the outside of the door is inserted into the housing opening 11 from the rear of the housing part 2 and has a flange-like thickening 13 which engages at least in regions in a corresponding extension 12 of the opening 11.
  • the thickening 13 is provided in particular in the case of the cylinder core 4 on the outside of the door, since this is particularly exposed to a violent attempted break-in.
  • the other cylinder core can be designed as usual and accordingly inserted into the corresponding housing opening 11 from the front.
  • an extension 14 is formed in which a guide slot 25 is incorporated.
  • a known coupling part 24 is guided to be longitudinally displaceable.
  • This coupling part 24 is used in a manner known per se for coupling the cylinder cores to a driver 15, on which a cam 16 is formed to actuate a lock bolt.
  • This Mitneh ⁇ mer 15 is provided with a recess 26 in which the projection 14 engages.
  • a socket wrench (not shown here) is inserted into a key channel 5. sets and the coupling part 24 shifted from the position shown in FIG. 2 to the right, after which the cylinder core 4 is coupled to the driver 15.
  • the tumblers are arranged by the socket wrench, so that the cylinder core 4 and thus the driver 5 can be rotated.
  • this has two blind bores 7 arranged at a distance from one another and a radial slot 8 on its end face.
  • a crescent-shaped locking body 9 is inserted, which is held by hardened steel pins 6, which are inserted into the bores 7, in a position in which it engages in a circumferential groove 10 in the inside of the housing opening 11.
  • the locking body 9 is slidably guided in the groove 10 and is displaced in the circumferential direction in the groove 10 when the cylinder core 4 is rotated.
  • the locking body 9 together with the thickening 13 ensures the exact axial positioning of the cylinder core 4 in the opening 11.
  • the locking body 9 When the cylinder core 4 is mounted in the housing part 2, the locking body 9 is completely recessed in the slot 8 and is therefore not on the outside of the cylinder core 4 in front. If the steel pins 6 are inserted into the bores 7, the locking body 9 is displaced outwards and finally engages in the groove 10, as is indicated in FIG. 3. The steel pins 6 fix the locking body 9 and at the same time form a drill protection.
  • the locking body 9 is preferably also made of a hard material and forms a further protection against a boring out of the cylinder core 4.
  • the two housing parts 2 and 3 are firmly connected to one another by the connecting web 20 shown in more detail in FIGS. 8, 9 and 10.
  • the housing parts 2 and 3 each have a recess 21, in each of which an arm 31 engages.
  • the arms 31 because a transverse bore 32 is incorporated, into each of which a pin 22 is inserted, which engages in a bore 35 of the housing part 2 or 3 and firmly connects the web 20 to the housing parts 2 and 3.
  • the web 20 has a thickening 33 in the center, which is preferably formed by an attached piece of pipe.
  • a recess 30 is machined from above on this thickening 33, which enables the driving cam 16 to pass when the locking cylinder 1 is actuated.
  • the thickening 33 is substantially wider than the recess 30.
  • the thickening 33 is therefore comparatively wide and engages in a shoulder 23 of a cylinder bag 19 at both ends.
  • Circumferential shoulders 36 of the thickening 33 each rest on an inside of the housing part 2 or 3.
  • the thickening 33 is preferably realized by a piece of pipe which is pushed onto the arms 31 and fixed with cross pins 37. This piece of pipe stabilizes the arms 31, in particular in the area of the faceplate screw bore 29 and effectively prevents the web from breaking during a bending attempt in the area of the faceplate screw bore 29 as a result of material fatigue.
  • FIG. 6 schematically illustrates a pull-out test using a steel screw 27.
  • This steel screw 27 is screwed into the cylinder core 4 and in the direction of arrow 28 a very high tensile force is exerted on the cylinder core 4 by means of a pulling device, not shown here.
  • a pulling out of the cylinder core 4 from the housing part 2 is prevented in particular by the thickening 13, which rests with a shoulder 17 on the back of the housing part 2.
  • FIG. 7 illustrates a break in the area of the faceplate screw bore 29 as a result of such an attempt to pull it out.
  • bending forces are exerted on the web 20 with the aim of achieving a fatigue fracture.
  • the lock cylinder is stabilized by the encompassing thickening 33 and in particular the thickening 33 absorbs bending forces.
  • FIG. 5 shows a variant of the locking cylinder 1 according to the invention.
  • An extension piece 34 is attached to the rear of the housing part 2 and has a cylindrical passage 38, in which the cylinder core 4 engages with its thickening 13.
  • the extension piece 34 extends the housing part 2 in a manner known per se.
  • the thickening 13 can simultaneously engage in a corresponding expansion of the housing part 2.
  • an extension 14 is formed on the rear side of the thickened portion 13, into which a guide slot 25 for the coupling part 24 is incorporated.
  • the slot 25 thus also forms a guide means for the coupling part 24 here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Chairs Characterized By Structure (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

A security lock comprises a closure cylinder with a cylinder housing (2, 3) and at least one cylinder core (4) mounted in a through-aperture (11) in the housing so as to rotate; the cylinder core is inserted into the aperture from the rear side and provided at its rear end with an enlarged section (13). Tumblers are set by a spanner inserted in a key channel. A catch (14) is provided on the rear side of the enlarged section (13) and is provided with the guide means for coupling the cylinder core (4) to a drive element (15).

Description

Schliesszylinder für ein Sicherheitsschloss Lock cylinder for a security lock
Die Erfindung betrifft einen Schliesszylinder für ein Si¬ cherheitsschloss, mit einem Zylindergehäuse und wenigstens einem in einer durchgehenden Gehäuseöffnung drehbar gela¬ gerten Zylinderkern, der in die Gehäuseöffnung von deren Rückseite her eingesetzt ist und an seinem hinteren Ende eine Verdickung aufweist, mit Zuhaltungen, die durch einen in einen Schlüsselkanal einführbaren Steckschlüssel einge¬ ordnet werden und mit an der Rückseite der Zylinderkerns angeordneten Führungsmitteln zum Kuppeln des Zylinderkerns mit einem Mitnehmer.The invention relates to a lock cylinder for a security lock, with a cylinder housing and at least one cylinder core rotatably mounted in a continuous housing opening, which is inserted into the housing opening from the rear and has a thickening at its rear end, with tumblers which be arranged by a socket wrench that can be inserted into a key channel and with guide means arranged on the rear of the cylinder core for coupling the cylinder core to a driver.
Ein Schliesszylinder dieser Art ist im Stand der Technik aus der CH-A-674 542 bekannt. Bei diesem weist der tür- aussenseitige Zylinderkern an seiner Rückseite eine Verdik- kung auf, was ein Ausreissen des Zylinderkerns wesentlich erschwert. Bei einem solchen Ausreissversuch wird in den türaussenseitigen Zylinderkern eine selbstschneidende Stahlschraube eingedreht und mit einer an dieser Schraube angesetzten Abziehvorrichtung sehr hohe Zugkräfte auf den Zylinderkern ausgeübt. Der Erfinder hat sich die Aufgabe gestellt, einen Schliess¬ zylinder der genannten Art zu schaffen, dessen Zugfestig¬ keit individuell festlegbar ist und damit unterschiedlichen Sicherheitsanforderungen entsprochen werden kann. Der Schliesszylinder soll insbesondere auch höheren Sicher¬ heitsanforderungen bezüglich der Zugfestigkeit genügen.A lock cylinder of this type is known in the prior art from CH-A-674 542. In this case, the cylinder core on the outside of the door has a thickening on its rear side, which makes it much more difficult to tear out the cylinder core. In such a pull-out attempt, a self-tapping steel screw is screwed into the outside of the cylinder core and very high tensile forces are exerted on the cylinder core with a pulling device attached to this screw. The inventor has set himself the task of creating a locking cylinder of the type mentioned, the tensile strength of which can be individually determined and thus different security requirements can be met. The locking cylinder should in particular also meet higher security requirements with regard to tensile strength.
Die Aufgabe ist bei einem gattungsgemässen Schliesszylinder dadurch gelöst, dass an der Rückseite der Verdickung ein Ansatz angeordnet ist und dieser die Führungsmittel auf¬ weist. Beim erfindungsgemässen Schliesszylinder ist der Kupplungsteil im wesentlichen im Ansatz an der Rückseite der Verdickung geführt. Die Führungsschlitze für die Kupp¬ lung können damit in diesen Ansatz eingearbeitet werden. Damit ist vermieden, dass der Führungsschlitz die Verdik- kung des Zylinderkerns schwächt, wie dies bisher der Fall war. Der Zylinderkern kann somit wesentlich massiver ausge¬ bildet sein und damit ist mit einer kürzeren Verdickung ei¬ ne ebenso hohe Zugsicherheit wie bisher erreichbar. Wesent¬ lich ist zudem, dass der Ansatz einen kleineren Durchmesser aufweisen kann als die Verdickung. Damit ist ermöglicht, dass der Mitnehmer, in welchen der Ansatz eingreift, mit einer wesentlich stabileren Wandung ausgebildet werden kann.In a locking cylinder of the generic type, the object is achieved in that an attachment is arranged on the rear side of the thickening and this has the guide means. In the locking cylinder according to the invention, the coupling part is essentially guided at the rear of the thickening. The guide slots for the coupling can thus be incorporated into this approach. This prevents the guide slot from weakening the thickening of the cylinder core, as was previously the case. The cylinder core can thus be made substantially more solid, and with a shorter thickening it is possible to achieve the same level of train safety as before. It is also essential that the extension can have a smaller diameter than the thickening. This makes it possible for the driver in which the shoulder engages to be formed with a much more stable wall.
Nach einer Weiterbildung der Erfindung ist die Verdickung in das Zylindergehäuse und/oder in ein Verlängerungsstück des Zylindergehäuses eingelassen. Die Verdickung kann durch diese Massnahme nicht nur wesentlich massiver sondern zu¬ gleich auch länger ausgebildet werden, wodurch die Sicher¬ heit gegen ein Abziehen des türaussenseitigen Zylinderkerns noch weiter erhöht wird. Der Bereich für eine individuelle Anpassung an unterschiedliche Sicherheitsanforderungen ist damit zusätzlich erweitert. __According to a development of the invention, the thickening is embedded in the cylinder housing and / or in an extension piece of the cylinder housing. As a result of this measure, the thickening can not only be made substantially more solid, but at the same time also longer, which further increases the security against pulling off the cylinder core on the outside of the door. The area for an individual adaptation to different security requirements is thus further expanded. __
Da beim erfindungsgemässen Schliesszylinder der türaussen- seitige Zylinderkern äusserst ausreisssicher im Zylinderge- häuse verankert ist, können mit einer Abziehvorrichtung entsprechend sehr hohe Kräfte zum Zerreissen des Schliess- zylinders im Bereich der Stulpschraubenbohrung ausgeübt werden. Um ein solches Zerreissen zu verhindern, ist gemäss einer Weiterbildung der Erfindung ein Verbindungssteg vor¬ gesehen, der im Bereich der Stulpschraubenbohrung verdickt ist, wobei diese Verdickung breiter ausgebildet ist als ei¬ ne Ausnehmung für den Durchgang des Mitnehmers. Die Verdik- kung des Steges kann in vorteilhafter Weise durch ein auf¬ gesetztes Rohrstück realisiert werden. Weitere vorteilhafte Merkmale sind Gegenstand abhängiger Patentansprüche.Since in the locking cylinder according to the invention the cylinder core on the outside of the door is extremely tear-proof in the cylinder housing is anchored, very high forces can be exerted with a pulling device to tear the locking cylinder in the area of the faceplate screw bore. In order to prevent such tearing, according to a development of the invention, a connecting web is provided which is thickened in the area of the faceplate screw bore, this thickening being wider than a recess for the passage of the driver. The thickening of the web can be realized in an advantageous manner by a piece of pipe placed on it. Further advantageous features are the subject of dependent claims.
Ausführungsbeispiele der Erfindung werden nachfolgend an¬ hand der Zeichnung näher erläutert. Es zeigen:Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show it:
Figur 1 schematisch einen teilweise geschnittenenFigure 1 schematically shows a partially sectioned
Zylinder gemäss der Erfindung,Cylinders according to the invention,
Figur 2 einen Teilschnitt durch den Schliesszylin¬ der gemäss Figur 1 ,FIG. 2 shows a partial section through the locking cylinder according to FIG. 1,
Figur 2a einen Schnitt entlang der Linie Ila-IIa derFigure 2a shows a section along the line Ila-IIa
Figur 2,Figure 2,
Figur 3 eine Ansicht des Schliesszylinders gemässFigure 3 is a view of the lock cylinder according to
Figur 1 ,Figure 1,
Figur 4 eine Ansicht der Rückseite einer Zylinder¬ hälfte,FIG. 4 shows a view of the rear of a cylinder half,
Figur 5 schematisch eine teilweise geschnitteneFigure 5 schematically shows a partially sectioned
Teilansicht eines Schliesszylinders nach einer Variante,Partial view of a locking cylinder according to a variant,
Figur 6 und 7 schematisch eine Illustration der Kernzieh¬ bzw. Zerreissmethode, Figur 8 eine Ansicht eines Verbindungssteges,FIGS. 6 and 7 schematically illustrate the core pulling or tearing method, FIG. 8 shows a view of a connecting web,
Figur 9 einen Schnitt durch den Verbindungssteg entlang der Linie IX-IX der Figur 8, und9 shows a section through the connecting web along the line IX-IX of FIG. 8, and
Figur 10 eine weitere Ansicht des Verbindungssteges.Figure 10 shows another view of the connecting web.
Der in den Figuren 1 bis 4 gezeigte Schliesszylinder 1 ist ein sogenannter Doppelschliesszylinder und weist zwei Ge¬ häuseteile 2 und 3 auf, die mit einem separat hergestellten Verbindungssteg 20 fest miteinander verbunden sind. Die Ge¬ häuseteile 2 und 3 besitzen jeweils eine durchgehende, zy¬ lindrische Gehäuseöffnung 11, in der jeweils ein Zylinder¬ kern 4 gelagert ist. Wenigstens ein türaussenseitiger Zy¬ linderkern 4 ist von der Rückseite des Gehäuseteils 2 in die Gehäuseöffnung 11 eingesetzt und besitzt eine flanschartige Verdickung 13, die wenigstens bereichsweise in eine korrespondierende Erweiterung 12 der Oeffnung 11 eingreift. Die Verdickung 13 ist insbesondere beim tür- aussenseitigen Zylinderkern 4 vorgesehen, da dieser einem gewaltsamen Einbruchversuch besonders ausgesetzt ist. Der andere Zylinderkern kann wie üblich ausgebildet und ent¬ sprechend von vorne in die entsprechende Gehäuseöffnung 11 eingesetzt sein.The locking cylinder 1 shown in FIGS. 1 to 4 is a so-called double locking cylinder and has two housing parts 2 and 3, which are fixedly connected to one another with a separately produced connecting web 20. The housing parts 2 and 3 each have a continuous, cylindrical housing opening 11, in each of which a cylinder core 4 is mounted. At least one cylinder core 4 on the outside of the door is inserted into the housing opening 11 from the rear of the housing part 2 and has a flange-like thickening 13 which engages at least in regions in a corresponding extension 12 of the opening 11. The thickening 13 is provided in particular in the case of the cylinder core 4 on the outside of the door, since this is particularly exposed to a violent attempted break-in. The other cylinder core can be designed as usual and accordingly inserted into the corresponding housing opening 11 from the front.
An der Rückseite der Verdickung 13 ist ein Ansatz 14 ange¬ formt, in dem ein Führungsschlitz 25 eingearbeitet ist. In diesem Schlitz 25 ist ein an sich bekanntes Kupplungsteil 24 längsverschieblich geführt. Dieses Kupplungsteil 24 dient in an sich bekannter Weise zum Kuppeln der Zylinder¬ kerne mit einem Mitnehmer 15, an dem zur Betätigung eines Schlossriegels ein Nocken 16 angeformt ist. Dieser Mitneh¬ mer 15 ist mit einer Ausnehmung 26 versehen, in welche der Ansatz 14 eingreift.On the back of the thickening 13, an extension 14 is formed in which a guide slot 25 is incorporated. In this slot 25, a known coupling part 24 is guided to be longitudinally displaceable. This coupling part 24 is used in a manner known per se for coupling the cylinder cores to a driver 15, on which a cam 16 is formed to actuate a lock bolt. This Mitneh¬ mer 15 is provided with a recess 26 in which the projection 14 engages.
Zur Betätigung des Schliesszylinders 1 wird ein hier nicht gezeigter Steckschlüssel in einen Schlüsselkanal 5 einge- setzt und das Kupplungsteil 24 aus der in der Figur 2 ge¬ zeigten Position nach rechts verschoben, wonach der Zylin¬ derkern 4 mit dem Mitnehmer 15 gekuppelt ist. Durch den Steckschlüssel sind die hier nicht gezeigten Zuhaltungen eingeordnet, so dass der Zylinderkern 4 und damit der Mit¬ nehmer 5 gedreht werden können.To actuate the lock cylinder 1, a socket wrench (not shown here) is inserted into a key channel 5. sets and the coupling part 24 shifted from the position shown in FIG. 2 to the right, after which the cylinder core 4 is coupled to the driver 15. The tumblers, not shown here, are arranged by the socket wrench, so that the cylinder core 4 and thus the driver 5 can be rotated.
Zur Führung des Zylinderkerns 4 im Gehäuseteil 2 weist die¬ ser an seiner Stirnseite zwei im Abstand zueinander ange¬ ordnete Sackbohrungen 7 sowie einen radialen Schlitz 8 auf. In den Schlitz 8 ist ein halbmondförmiger Riegelkörper 9 eingelegt, der durch gehärtete Stahlstifte 6, welche in die Bohrungen 7 eingesetzt sind, in einer Position gehalten ist, in welcher er in eine umlaufende Rille 10 in der In¬ nenseite der Gehäuseöffnung 11 eingreift. Der Riegelkörper 9 ist in der Rille 10 gleitverschieblich geführt und wird beim Drehen des Zylinderkerns 4 in dieser Rille 10 in Um¬ fangsrichtung verschoben. Der Riegelkörper 9 sichert zusam¬ men mit der Verdickung 13 die genaue axiale Positionierung des Zylinderkerns 4 in der Oeffnung 11. Beim Montieren des Zylinderkerns 4 im Gehäuseteil 2 ist der Riegelkörper 9 im Schlitz 8 vollständig versenkt und steht somit an der Aussenseite des Zylinderkerns 4 nicht vor. Werden die Stahlstifte 6 in die Bohrungen 7 eingesetzt, so wird der Riegelkörper 9 nach aussen verschoben und greift schliess¬ lich in die Rille 10 ein, wie dies in Figur 3 angedeutet ist. Die Stahlstifte 6 fixieren den Riegelkörper 9 und bil¬ den gleichzeitig einen Aufbohrschutz. Der Riegelkörper 9 ist vorzugsweise ebenfalls aus einem harten Werkstoff her¬ gestellt und bildet einen weiteren Schutz gegen ein Aufboh¬ ren des Zylinderkerns 4.To guide the cylinder core 4 in the housing part 2, this has two blind bores 7 arranged at a distance from one another and a radial slot 8 on its end face. In the slot 8, a crescent-shaped locking body 9 is inserted, which is held by hardened steel pins 6, which are inserted into the bores 7, in a position in which it engages in a circumferential groove 10 in the inside of the housing opening 11. The locking body 9 is slidably guided in the groove 10 and is displaced in the circumferential direction in the groove 10 when the cylinder core 4 is rotated. The locking body 9 together with the thickening 13 ensures the exact axial positioning of the cylinder core 4 in the opening 11. When the cylinder core 4 is mounted in the housing part 2, the locking body 9 is completely recessed in the slot 8 and is therefore not on the outside of the cylinder core 4 in front. If the steel pins 6 are inserted into the bores 7, the locking body 9 is displaced outwards and finally engages in the groove 10, as is indicated in FIG. 3. The steel pins 6 fix the locking body 9 and at the same time form a drill protection. The locking body 9 is preferably also made of a hard material and forms a further protection against a boring out of the cylinder core 4.
Die beiden Gehäuseteile 2 und 3 sind durch den in den Figu¬ ren 8, 9 und 10 näher gezeigten Verbindungssteg 20 fest miteinander verbunden. Zur Aufnahme des Steges 20 weisen die Gehäuseteile 2 und 3 jeweils eine Ausnehmung 21 auf, in die jeweils ein Arm 31 eingreift. In die Arme 31 ist je- weils eine Querbohrung 32 eingearbeitet, in die jeweils ein Stift 22 eingesetzt ist, der in eine Bohrung 35 des Gehäu¬ seteils 2 bzw. 3 eingreift und den Steg 20 fest mit den Ge¬ häuseteilen 2 und 3 verbindet. Der Steg 20 besitzt mittig eine Verdickung 33, die vorzugsweise durch ein aufgesetztes Rohrstück gebildet ist. An dieser Verdickung 33 ist von oben eine Ausnehmung 30 eingearbeitet, die bei einer Betä¬ tigung des Schliesszylinders 1 einen Durchgang des Mitneh¬ mernockens 16 ermöglicht. Die Verdickung 33 ist wesentlich breiter als die Ausnehmung 30. Die Verdickung 33 ist somit vergleichsweise breit und greift an beiden Enden jeweils in einen Absatz 23 eines Zylindersacks 19 ein. Umlaufende Schultern 36 der Verdickung 33 liegen jeweils an einer In¬ nenseite des Gehäuseteils 2 bzw. 3 an. Die Verdickung 33 ist vorzugsweise durch ein Rohrstück realisiert, das auf die Arme 31 aufgeschoben und mit Querstiften 37 fixiert ist. Dieses Rohrstück stabilisiert die Arme 31, insbesonde¬ re im Bereich der Stulpschraubenbohrung 29 und verhindert wirksam, dass der Steg bei einem Biegeversuch im Bereich der Stulpschraubenbohrung 29 infolge Materialermüdung bricht. Beim erfindungsgemässen Schliesszylinder 1 ist ge¬ währleistet, dass der Zylinderkern 4 auch mit hohen Zug¬ kräften nicht ausgerissen werden kann und zudem ein Bruch im Bereich der Stulpschraubenbohrung 29 kaum möglich ist. Die Figur 6 illustriert schematisch ein Ausreissversuch mittels einer Stahlschraube 27. Diese Stahlschraube 27 ist in den Zylinderkern 4 eingeschraubt und in Richtung des Pfeils 28 wird mittels einer hier nicht gezeigten Abzieh¬ vorrichtung eine sehr hohe Zugkraft auf den Zylinderkern 4 ausgeübt. Ein Ausziehen des Zylinderkerns 4 aus dem Gehäu¬ seteil 2 ist insbesondere durch die Verdickung 13 verhin¬ dert, die mit einer Schulter 17 an der Rückseite des Gehäu¬ seteils 2 anliegt. Die Figur 7 illustriert einen Bruch im Bereich der Stulpschraubenbohrung 29 als Folge eines sol¬ chen Ausreissversuchs. Bei einem solchen Versuch werden Biegekräfte auf den Steg 20 ausgeübt, mit dem Ziel einen Ermüdungsbruch zu erreichen. Beim erfindungsgemässen Schliesszylinder ist der Steg durch die umgreifende Verdik- kung 33 stabilisiert und insbesondere werden die Verdickung 33 Biegekräfte aufgenommen.The two housing parts 2 and 3 are firmly connected to one another by the connecting web 20 shown in more detail in FIGS. 8, 9 and 10. To accommodate the web 20, the housing parts 2 and 3 each have a recess 21, in each of which an arm 31 engages. In the arms 31 because a transverse bore 32 is incorporated, into each of which a pin 22 is inserted, which engages in a bore 35 of the housing part 2 or 3 and firmly connects the web 20 to the housing parts 2 and 3. The web 20 has a thickening 33 in the center, which is preferably formed by an attached piece of pipe. A recess 30 is machined from above on this thickening 33, which enables the driving cam 16 to pass when the locking cylinder 1 is actuated. The thickening 33 is substantially wider than the recess 30. The thickening 33 is therefore comparatively wide and engages in a shoulder 23 of a cylinder bag 19 at both ends. Circumferential shoulders 36 of the thickening 33 each rest on an inside of the housing part 2 or 3. The thickening 33 is preferably realized by a piece of pipe which is pushed onto the arms 31 and fixed with cross pins 37. This piece of pipe stabilizes the arms 31, in particular in the area of the faceplate screw bore 29 and effectively prevents the web from breaking during a bending attempt in the area of the faceplate screw bore 29 as a result of material fatigue. In the locking cylinder 1 according to the invention, it is ensured that the cylinder core 4 cannot be torn out even with high tensile forces and that a break in the area of the faceplate screw bore 29 is hardly possible. FIG. 6 schematically illustrates a pull-out test using a steel screw 27. This steel screw 27 is screwed into the cylinder core 4 and in the direction of arrow 28 a very high tensile force is exerted on the cylinder core 4 by means of a pulling device, not shown here. A pulling out of the cylinder core 4 from the housing part 2 is prevented in particular by the thickening 13, which rests with a shoulder 17 on the back of the housing part 2. FIG. 7 illustrates a break in the area of the faceplate screw bore 29 as a result of such an attempt to pull it out. In such an attempt, bending forces are exerted on the web 20 with the aim of achieving a fatigue fracture. In the inventive The lock cylinder is stabilized by the encompassing thickening 33 and in particular the thickening 33 absorbs bending forces.
Die Figur 5 zeigt eine Variante des erfindungsgemässen Schliesszylinders 1. Bei dieser ist an der Rückseite des Gehäuseteils 2 ein Verlängerungsstück 34 angesetzt, welches einen zylindrischen Durchgang 38 besitzt, in welchen der Zylinderkern 4 mit seiner Verdickung 13 eingreift. Das Ver¬ längerungsstück 34 verlängert den Gehäuseteil 2 in an sich bekannter Weise. Denkbar ist auch eine Ausführung mit meh¬ reren Verlängerungsstücken 34, die aneinander gelegt sind. Schliesslich kann die Verdickung 13 gleichzeitig in eine korrespondierende Erweiterung des Gehäuseteils 2 eingrei¬ fen. Auch bei dieser Ausführung ist an der Rückseite der Verdickung 13 ein Ansatz 14 angeformt, in den ein Führungs¬ schlitz 25 für das Kupplungsteil 24 eingearbeitet ist. Der Schlitz 25 bildet somit auch hier ein Führungsmittel für den Kupplungsteil 24.FIG. 5 shows a variant of the locking cylinder 1 according to the invention. An extension piece 34 is attached to the rear of the housing part 2 and has a cylindrical passage 38, in which the cylinder core 4 engages with its thickening 13. The extension piece 34 extends the housing part 2 in a manner known per se. An embodiment with several extension pieces 34, which are placed against one another, is also conceivable. Finally, the thickening 13 can simultaneously engage in a corresponding expansion of the housing part 2. In this embodiment, too, an extension 14 is formed on the rear side of the thickened portion 13, into which a guide slot 25 for the coupling part 24 is incorporated. The slot 25 thus also forms a guide means for the coupling part 24 here.
Trotz den erheblichen Vorteilen des erfindungsgemässen Schliesszylinders ist dieser wie ersichtlich mit verhält- nismässig wenigen, einfachen und robusten Bauteilen reali¬ sierbar, so dass erfindungsgemäss ein Schliesszylinder ge¬ schaffen wurde, welcher nicht nur den sicherheitstechni¬ schen Anforderungen, einschliesslich einer einfachen Monta¬ ge, in hervorragender Weise Rechnung trägt, sondern auf¬ grund seiner einfachen und robusten Ausführbarkeit kosten- mässig günstig und betrieblich äusserst zuverlässig ist. Despite the considerable advantages of the locking cylinder according to the invention, as can be seen, it can be realized with relatively few, simple and robust components, so that, according to the invention, a locking cylinder was created which not only meets the security requirements, including simple assembly , takes into account in an excellent manner, but because of its simple and robust feasibility is inexpensive and operationally extremely reliable.

Claims

Patentansprüche claims
1. Schliesszylinder für ein Sicherheits- schloss, mit einem Zylindergehäuse (2,3) und wenigstens ei¬ nem in einer durchgehenden Gehäuseöffnung (11) drehbar ge¬ lagerten Zylinderkern (4), der in die Gehäuseöffnung von der Rückseite her eingesetzt ist und an seinem hinteren En¬ de eine Verdickung (13) aufweist, mit Zuhaltungen, die durch einen in einen Schlüsselkanal (5) einführbaren Steck¬ schlüssel eingeordnet werden und mit an der Rückseite des Zylinderkerns (4) angeordneten Führungsmitteln (25) zum Kuppeln des Zylinderkerns (4) mit einem Mitnehmer (15), da¬ durch gekennzeichnet, dass an der Rückseite der Verdickung (13) ein Ansatz (14) angeordnet ist und dieser die Füh¬ rungsmittel (25) aufweist.1. Locking cylinder for a security lock, with a cylinder housing (2, 3) and at least one cylinder core (4) rotatably mounted in a through housing opening (11), which is inserted into the housing opening from the rear and on has a thickening (13) on its rear end, with tumblers which are arranged by a socket key which can be inserted into a key channel (5) and with guide means (25) arranged on the rear of the cylinder core (4) for coupling the cylinder core ( 4) with a driver (15), characterized in that an extension (14) is arranged on the rear of the thickened portion (13) and this has the guide means (25).
2. Schliesszylinder nach Anspruch 1, dadurch gekennzeichnet, dass die Verdickung in eine korrespondie¬ rende Erweiterung (12) eines Gehäuseteils (2) eingreift.2. Lock cylinder according to claim 1, characterized in that the thickening engages in a corresponding extension (12) of a housing part (2).
3. Schliesszylinder nach Anspruch 1, dadurch gekennzeichnet, dass die Verdickung (13) im wesentlichen oder bereichsweise in einen Durchgang (38) eines Gehäuse¬ verlängerungsstücks (34) eingreift.3. Locking cylinder according to claim 1, characterized in that the thickening (13) engages substantially or partially in a passage (38) of a housing extension piece (34).
4. Schliesszylinder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in den Ansatz (14) als Führungsmittel (25) ein Führungsschlitz eingearbeitet ist. 4. Lock cylinder according to one of claims 1 to 3, characterized in that a guide slot is incorporated in the extension (14) as a guide means (25).
5. Schliesszylinder nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Ansatz (14) einen Aussendurchmesser aufweist, der wesentlich kleiner ist als der Aussendurchmesser der Verdickung (13).5. Locking cylinder according to one of claims 1 to 4, characterized in that the projection (14) has an outer diameter which is substantially smaller than the outer diameter of the thickening (13).
6. Schliesszylinder nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Ansatz (14) in eine korrespondierende Ausnehmung (26) eines Mitnehmers (15) eingreift.6. Lock cylinder according to one of claims 1 to 5, characterized in that the projection (14) engages in a corresponding recess (26) of a driver (15).
7. Schliesszylinder nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Zylinderkern (4) an seinem vorderen Ende einen radialen Schlitz (8) aufweist, in dem ein Verriegelungskörper (9) eingesetzt ist, der mit einem Gehäuseteil (2) in Eingriff ist.7. Locking cylinder according to one of claims 1 to 6, characterized in that the cylinder core (4) has at its front end a radial slot (8) in which a locking body (9) is inserted, which with a housing part (2) in Intervention is.
8. Schliesszylinder nach Anspruch 7, dadurch gekennzeichnet, dass der Verriegelungsskörper (9) eine halbmondförmige Scheibe ist, die durch gehärtete Stifte (6), die stirnseitig in den Zylinderkern (4) eingesetzt sind, in der verriegelten Position gehalten sind.8. Lock cylinder according to claim 7, characterized in that the locking body (9) is a crescent-shaped disc which are held in the locked position by hardened pins (6) which are inserted at the end in the cylinder core (4).
9. Schliesszylinder nach Anspruch 8, dadurch gekennzeichnet, dass er ein Doppelschliesszylinder ist und zwei Gehäusehälften (2,3) aufweist, die mit einem Verbin¬ dungssteg (20) miteinander verbunden sind.9. Lock cylinder according to claim 8, characterized in that it is a double lock cylinder and has two housing halves (2, 3) which are connected to one another with a connecting web (20).
10. Schliesszylinder nach Anspruch 9, dadurch gekennzeichnet, dass der Verbindungssteg (20) im Bereich der Stulpschraubenbohrung (29) verdickt ist und beidseitig einer radialen Ausnehmung (30) für einen Mitnehmernocken (16) jeweils eine an einem Gehäuseteil (2,3) anliegende um¬ laufende Schulter (36) aufweist. 10. Locking cylinder according to claim 9, characterized in that the connecting web (20) is thickened in the area of the faceplate screw bore (29) and on both sides of a radial recess (30) for a driver cam (16) in each case one on a housing part (2, 3) revolving shoulder (36).
11. Schliesszylinder nach Anspruch 10, dadurch gekennzeichnet, dass die Schulter (36) durch eine umlaufen¬ de Verdickung (33) gebildet ist.11. Locking cylinder according to claim 10, characterized in that the shoulder (36) is formed by a circumferential thickening (33).
12. Schliesszylinder nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Verdickung (33) durch ein aufgesetztes Rohrstück gebildet ist.12. Lock cylinder according to claim 10 or 11, characterized in that the thickening (33) is formed by an attached piece of pipe.
13. Schliesszylinder nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass an der Rückseite eines Gehäuseteils (2) wenigstens ein Verlängerungsstück (34) an¬ geordnet ist, das eine Oeffnung (38) aufweist, in welche die Verdickung (13) eingreift. 13. Locking cylinder according to one of claims 1 to 12, characterized in that at least one extension piece (34) is arranged on the back of a housing part (2), which has an opening (38) into which the thickening (13) engages .
EP96923807A 1995-08-11 1996-08-02 Double closure cylinder for a security lock Expired - Lifetime EP0843765B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH02315/95A CH690623A5 (en) 1995-08-11 1995-08-11 Lock cylinder for a security lock.
CH2315/95 1995-08-11
CH231595 1995-08-11
PCT/CH1996/000272 WO1997007309A1 (en) 1995-08-11 1996-08-02 Closure cylinder for a security lock

Publications (2)

Publication Number Publication Date
EP0843765A1 true EP0843765A1 (en) 1998-05-27
EP0843765B1 EP0843765B1 (en) 2002-01-09

Family

ID=4230932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96923807A Expired - Lifetime EP0843765B1 (en) 1995-08-11 1996-08-02 Double closure cylinder for a security lock

Country Status (11)

Country Link
EP (1) EP0843765B1 (en)
JP (1) JP4007614B2 (en)
AR (1) AR003239A1 (en)
AT (1) ATE211794T1 (en)
AU (1) AU699150B2 (en)
BR (1) BR9610217A (en)
CH (1) CH690623A5 (en)
DE (2) DE29516547U1 (en)
DK (1) DK0843765T3 (en)
ES (1) ES2170863T3 (en)
WO (1) WO1997007309A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29608645U1 (en) * 1996-03-01 1996-08-01 Keller, Ernst, Richterswil Built-in double lock cylinder for a security lock
DE29801490U1 (en) * 1998-01-30 1999-06-02 Bks Gmbh, 42549 Velbert Connector for a profile cylinder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1432326A (en) * 1922-03-31 1922-10-17 Yale & Towne Mfg Co Tumbler lock
US2129967A (en) * 1937-10-16 1938-09-13 Briggs & Stratton Corp Lock
FR2601991B3 (en) * 1986-07-25 1991-09-13 Dupart Jean DEVICE FOR CLUTCHING A SWIVELING LOCK ROTOR IN A PIVOTING MOUNTED STATOR
CH674542A5 (en) * 1987-10-02 1990-06-15 Ernst Keller Security lock cylinder - has core with rear end flange inserted from rear and front covering head
CH679169A5 (en) * 1988-05-05 1991-12-31 Ernst Keller Morticed double cylinder for door lock - has flexible longitudinal component joining housing sections together

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9707309A1 *

Also Published As

Publication number Publication date
AU6411496A (en) 1997-03-12
EP0843765B1 (en) 2002-01-09
JPH11510865A (en) 1999-09-21
AU699150B2 (en) 1998-11-26
JP4007614B2 (en) 2007-11-14
BR9610217A (en) 1999-06-29
DE59608565D1 (en) 2002-02-14
DE29516547U1 (en) 1995-12-07
ATE211794T1 (en) 2002-01-15
CH690623A5 (en) 2000-11-15
WO1997007309A1 (en) 1997-02-27
ES2170863T3 (en) 2002-08-16
DK0843765T3 (en) 2002-04-29
AR003239A1 (en) 1998-07-08

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