EP0559158A1 - Electronic plug - Google Patents

Electronic plug Download PDF

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Publication number
EP0559158A1
EP0559158A1 EP93103323A EP93103323A EP0559158A1 EP 0559158 A1 EP0559158 A1 EP 0559158A1 EP 93103323 A EP93103323 A EP 93103323A EP 93103323 A EP93103323 A EP 93103323A EP 0559158 A1 EP0559158 A1 EP 0559158A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
key
housing
coupling coil
lock cylinder
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
EP93103323A
Other languages
German (de)
French (fr)
Other versions
EP0559158B1 (en
Inventor
Karl-Heinz Spahn
Helmut Aswegen
Franz Schwerdt
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.)
Aug Winkhaus GmbH and Co KG
Original Assignee
Aug Winkhaus GmbH and Co KG
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 Aug Winkhaus GmbH and Co KG filed Critical Aug Winkhaus GmbH and Co KG
Publication of EP0559158A1 publication Critical patent/EP0559158A1/en
Application granted granted Critical
Publication of EP0559158B1 publication Critical patent/EP0559158B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7051Using a powered device [e.g., motor]
    • Y10T70/7062Electrical type [e.g., solenoid]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7051Using a powered device [e.g., motor]
    • Y10T70/7062Electrical type [e.g., solenoid]
    • Y10T70/7068Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
    • Y10T70/7073Including use of a key
    • Y10T70/7079Key rotated [e.g., Eurocylinder]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/778Operating elements
    • Y10T70/7791Keys
    • Y10T70/7876Bow or head
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/778Operating elements
    • Y10T70/7791Keys
    • Y10T70/7904Magnetic features

Definitions

  • the invention relates to a locking cylinder and in particular to a locking cylinder with tumblers that can be mechanically locked by a key, which enables the transfer of encryption information between an electronic control circuit of the key and an electronic control circuit of the locking cylinder.
  • a profile locking cylinder which in the usual way comprises a profile housing and a cylinder core rotatably mounted in a bore of the profile housing with an insertion channel extending in the direction of the cylinder axis for a flat key.
  • the flat key not only controls mechanical tumblers of the locking cylinder, but also contains an electronic control circuit in its grip part, which transmits encryption data inductively via a key-side coupling coil to a coupling coil arranged on the profile housing.
  • Another electronic control circuit is connected to the coupling coil of the lock cylinder, which controls the transmitted Evaluates encryption data and, if the key-side encryption data matches the locking cylinder-side encryption data, generates a control signal representing the locking state.
  • the locking cylinder also includes an electromagnetic locking device that also blocks the cylinder core relative to the profile housing, but can be unlocked depending on the control signal.
  • the coupling coil of the locking cylinder known from EP-A-324 096 is accommodated in a plastic holder which is held on an end face of the profile housing with the aid of molded-on locking elements.
  • the plastic holder protrudes over the end face of the cylinder core in order to be able to bring the coupling coil closer to the coupling coil accommodated in the key handle on the key side.
  • the plastic bracket protrudes a few millimeters above the front surface of a door plate, which carries the risk of unwanted damage and unauthorized manipulation.
  • the magnetic fields of the coupling coils are comparatively small, and the signals generated by the coupling coil on the lock cylinder side are also comparatively small.
  • the electronic control circuit should be arranged as close as possible to the coupling coils in order to reduce signal losses and interference.
  • it is known to accommodate the electronic control circuit or at least some of its components directly in the housing of the locking cylinder. Designed in conventional lock cylinders of this type assembly becomes difficult, however, since electronic components and mechanical components must be assembled at the same time.
  • the invention is based on a locking cylinder comprising a housing, at least one cylinder core rotatably mounted in a bore in the housing with an insertion channel for a key extending in the direction of the cylinder axis, a plurality of tumblers mechanically controllable by the key, and a holder which is detachably held on the housing an information transmission element arranged in the vicinity of the insertion channel, in particular in the form of a coupling coil, which, when a key is inserted into the insertion channel, can be coupled to a key-side information transmission element, in particular also in the form of a coupling coil, of a key-side electronic control circuit for transmitting encryption information, and a lock-cylinder side connected to the lock cylinder-side information transmission element electronic control circuit, which depends on the transmitted encryption information e control signal representing the closed state, in particular for controlling an electromagnetic locking device which locks the cylinder core in addition to the tumblers.
  • a lock cylinder of this type the above object is achieved according to the invention in that at least some of the components of the electronic control circuit are arranged on the housing of the lock cylinder and in that all components of the control circuit arranged on the housing, the information transmission element and the holder form a structural unit which is detachably held on the housing as a structural unit.
  • Such a design allows at least the input and / or output stages required for signal transmission via the coupling coils to be arranged in the immediate vicinity of the coupling coil, which increases the interference immunity.
  • the mechanical components of the locking cylinder and the electronic components can be assembled separately from one another to form structural units which are only combined in a final manufacturing step. This also has the advantage that, in the event of a defect, the electronic assembly can be replaced at the installation location of the locking cylinder without the mechanical part of the locking cylinder having to be replaced as well.
  • the housing is designed as a profile housing of a profile locking cylinder and comprises a cylinder section containing the bore for the cylinder core and a web section projecting radially from the cylinder section and in which the holder also covers at least the axial end face of the web section, It is provided that the holder has an opening coaxial with the bore into which an extension of the cylinder core protrudes from the bore and that the components of the control circuit arranged on the housing are arranged on a circuit board arranged with its plate plane transverse to the cylinder axis in the region of the end face of the web section are arranged.
  • a lock cylinder of this type can essentially be constructed from conventional lock cylinder components.
  • conventional, standardized Locking cylinders are assumed, the cylinder core and profile housing can be modified only slightly.
  • the bracket essentially forms the entire front surface of the profile housing, it has sufficient stability and can also be permanently attached to the profile housing.
  • the circuit board which runs approximately parallel to the end face of the web section, detects attempts at drilling since it is the first to be destroyed when the guard area is drilled out and the destruction can be used to trigger the alarm.
  • the holder which consists of a non-magnetic material, for example of plastic, but also of non-ferromagnetic metal, expediently has an attachment adapted to the outer contour of the web section, which protrudes over a ring section forming the opening in the direction of the cylinder axis and contains a pocket in which the web section engages.
  • a bracket can be mechanically stable and permanently attached to the profile housing, especially if the pocket is limited on both sides of the web section by cheeks of the approach, which sit in contour-shaped recesses of the side surfaces of the web section and also the bracket by transverse to the cylinder axis through the Pin-shaped fastening elements engaging in the web section through the cheeks are fastened, for example screwed, to the profile housing.
  • the identical, contiguous edges of the cheeks and the recesses guide the holder positively against tipping and rotation, so that a few fastening elements, for example one fastening element each sufficient for permanent attachment on each side.
  • the extension of the cylinder core engages in the opening of the bracket and thus contributes to stabilization.
  • the extension can be integrally formed on the cylinder core; however, it can also be designed as a cap separate from the cylinder core, which sits on a projection formed on the front end of the cylinder core.
  • the latter version has the advantage that conventional cylinder cores with standardized dimensions can be assumed in the manufacture of the cylinder core, since only a seat has to be molded onto the cylinder core in order to be able to be extended to the desired dimension by the cap without the other dimensions, in particular the ring flanges or the like usually provided for the axial guidance of the cylinder core would have to be changed.
  • the cap expediently has an annular flange which projects radially outward to the cylinder axis and which engages between the holder and the cylinder section of the profile housing. It goes without saying that the cap can be coupled in a rotationally fixed manner to the cylinder core by means of projections or the like, so that a key insertion opening provided in the cap cannot rotate relative to the insertion channel of the cylinder core.
  • the coupling coil sits on the end face of the cylinder and interacts with a coupling coil accommodated in the handle part of the key.
  • the end face of the locking cylinder must be extended beyond the end face of the cylinder core towards the key handle in order to ensure a sufficiently small coupling distance.
  • a further locking cylinder which contains a coupling coil arranged laterally of the cylinder core rotatably arranged in a housing.
  • the coupling coil sits on a U-shaped yoke, the legs of which enclose a key insertion channel, which is open on both sides, in the cylinder core between them.
  • a cylindrical coupling coil In the shaft of the assigned flat key sits a cylindrical coupling coil at a distance from the handle part of the key, which extends between the narrow sides of the key shaft and is guided between the yoke legs of the coupling cylinder-side coupling coil when the key is inserted into the insertion channel of the cylinder core.
  • a lock cylinder of this type requires a special design of the cylinder housing, and the coupling coil which extends through the entire key shaft weakens the key shaft to a great extent, so that there is a risk of the key breaking off if handled improperly.
  • the invention is based on a profile locking cylinder which comprises the following components: A profile housing, at least one cylinder core rotatably mounted in a bore of the profile housing with a In the direction of the cylinder axis extending insertion channel for a flat key, several tumblers mechanically controllable by the flat key, a coupling coil arranged in the area of an end face of the profile housing, which can be coupled to a key-side coupling coil of a key-side electronic control circuit for inductive transmission of encryption information when a flat key is inserted into the insertion channel and a locking cylinder-side electronic control circuit which is connected to the locking cylinder-side coupling coil and which, depending on the transmitted encryption information, transmits a control signal representing the locking state, in particular for controlling a locking device which locks the cylinder core in addition to the tumblers.
  • the above-stated object is achieved in that the insertion channel in the region of the end face of the profile housing is radially open towards the profile housing on at least one of its narrow sides in such a way that the lock cylinder-side coupling coil is arranged in such a way that it inserts the flat key is aligned in the rest position allowing the cylinder core to the narrow side opening of the insertion channel and that the key-side coupling coil is arranged in the region of the narrow side of a portion of a key shaft of the flat key that can be inserted into the insertion channel.
  • the lock cylinder-side coupling coil is protected in the interior of the profile housing, taking advantage of the space available in the web section of the profile cylinder, so that it can be inductively coupled directly to a key-side coupling coil arranged on a narrow side of the key shaft. Because the key-side coupling coil is not through the key shaft extends through, the key shaft is not mechanically weakened, and the accommodation of the locking cylinder-side coupling coil within standardized dimensions of a profile cylinder is not difficult.
  • the second aspect of the invention can preferably be used in a cylinder lock of the type explained under the first-mentioned aspect, in which the electronic components, insofar as they are accommodated in the housing of the lock cylinder, are combined to form one structural unit.
  • the locking cylinder-side coupling coil is held on a circuit board which at the same time also carries at least some of the electronic components of the control circuit. In this way, the comparatively small coupling cylinder-side coupling coil can be mounted more easily in the profile housing.
  • the key-side electronic control circuit is expediently arranged in a grip part of the flat key, the key shaft having a flat side widening in the region of the grip part, which forms a plug-in stop surface pointing away from the grip part.
  • the plug-in stop surface interacting with a counter stop surface of the cylinder core ensures the axial adjustment of the flat key relative to the mechanical tumblers of the locking cylinder.
  • the key-side coupling coil is preferably arranged on a narrow side of the flat side widening extending in the longitudinal direction of the shaft between the stop surface and the grip part, that is to say at a point at which the key shaft has increased strength anyway due to the flat side widening Has.
  • the coupling coil is expediently seated in a recess in the flat side widening from which a bore running completely inside the key shaft is guided to the inside of the handle part for receiving connecting lines of the coupling coil. Since the recess extends into the stop surface, the bore can also be made from the stop surface, which also facilitates the installation of the coupling coil in the recess.
  • the cutout does not extend into the flat sides of the key shaft, so that the coupling coil is covered by flat side cheeks.
  • the profile locking cylinder shown in FIGS. 1 to 4 has a profile housing 1 with a cylinder section 3, which contains a cylinder core 9 rotatable about its cylinder axis 7 in a cylindrical bore 5, and a web section 11 projecting radially to the cylinder axis 7.
  • the cylinder core 9 contains an insertion channel 13 for a flat key, generally designated 15 (FIG. 4), the key shaft 19 of which protrudes from a grip part 17 controls mechanical tumbler pin pairs 21 in a conventional manner.
  • the tumbler pin pairs 21 are biased by springs 23 towards the cylinder core 9 in bores 25, 27 of the web section 11 on the one hand or of the cylinder core 9 on the other hand, the bores 25, 27 in a rest position of the cylinder core 9, in which the flat key 15 is inserted or removed can be aligned with each other.
  • FIG. 3 shows the locked position of the locking cylinder when the key is removed, in which the tumbler pin pairs 21 extend radially beyond the lateral surface of the cylinder core 9 into the web section 11 and block the cylinder core 9.
  • Fig. 4 shows the lock cylinder with inserted flat key 15, the key notches 29 align the parting surfaces 31 of the tumbler pin pairs 21 to the jacket of the cylinder core 9 so that it can be rotated relative to the profile housing 1.
  • the locking cylinder can be locked by an electromagnetic locking device 33.
  • the locking device 33 which blocks the cylinder core 9, for example by means of a spring-loaded armature 35, comprises an electromagnet 37 which actuates the armature 35 when a control pulse is supplied and releases the cylinder core 9 for rotation by the flat key 15 for the duration of the control pulse.
  • the locking cylinder is an electronic, generally designated 39
  • Control circuit assigned which is arranged with its main components outside the lock cylinder, for example in the area of the lock assigned to the lock cylinder or also outside the door locked by the lock or the like and is connected to a coupling coil 43 on the lock cylinder via a connecting line separable by plug connections 41.
  • Some of the electronic components of the electronic control circuit 39 are housed in the immediate vicinity of the coupling coil 43 on a circuit board 45 in the locking cylinder, in order to be able to process the comparatively weak signals of the coupling coil 43 without interference.
  • a further electronic circuit 47 is accommodated in the handle part 17 of the key and is connected to a further coupling coil 49 provided in the key shaft 19.
  • the coupling coils 43, 49 are aligned with one another and inductively coupled to one another.
  • the control circuits 39, 47 transmit encryption information in both directions, on which the control circuit 39 generates the control pulse which unlocks the locking device 33 if they match.
  • the region of the narrow side of the insertion channel 13 on the coupling coil side in the rest position of the cylinder core 9 of the coupling coil 43 is open, and the coupling coil 43 is directly adjacent to the circumference of the cylinder core 9.
  • the circuit board 45 carries all the locking cylinder-side electronic components of the control circuit 39 and is combined with the coupling coil 43 and a holder 51 to form a structural unit which, as such is releasably attached to the profile housing 1.
  • the mechanical components of the locking cylinder can thus be assembled separately from the electronic components, so that the electronic components are only added in a last step. In the event of a defect, the electronic components can also be replaced without the mechanical components of the locking cylinder also having to be replaced.
  • the holder 51 which is made of plastic or another non-magnetic material, for example, is designed as a molded part and is placed on the end face of the profile housing 1.
  • the holder 51 encloses with an annular part 53 forming an opening 52 an end axial extension 55 of the cylinder core 9 and has a shoulder 57 on the side of the ring part 53.
  • the shoulder 57 has a contour that matches the outer contour of the web section 11 and forms between two cheeks 59 1, of which only one can be seen, a pocket 61 into which the web portion 11 engages.
  • the web portion 11 has in its area engaging in the pocket 61 a recess 63 of the same shape, which encloses the shoulder 57 in a form-fitting manner with its edges, so that the holder 51 is guided against the lock cylinder to a large extent so as not to tip over.
  • Pins or screws 65 fix the holder 51 in the region of the cheeks 59 on the web section 11.
  • the circuit board 45 extends perpendicular to the cylinder axis 7 and overlaps the end face of the web section 11. In a drilling attempt in which the tumbler bores 25 are to be destroyed, the circuit board 45 is first destroyed, which is detected as a sabotage attempt by the control circuit 39 and used to trigger the alarm becomes.
  • hardened steel pins 67 or the like can be inserted between the holder 51 and the tumbler pin row as a drill protection in the web section 11.
  • FIG. 4 to 6 show details of the flat key 15, which in the area of the base of its key shaft 19 has a flat side widening 69 which engages in the extension 55 of the cylinder core 9 when the key is inserted.
  • the flat side widening 69 facing away from the handle part 17, forms a stop surface 71 which fixes the key for the mechanical closure of the locking cylinder on a counter stop surface 73 (FIG. 4) of the cylinder core 9.
  • the stop surfaces 71, 73 also ensure the alignment of the coupling coils 43, 49.
  • the coupling coil 49 is seated in a recess 77 of the flat side widening 69 which is open to the stop surface 71 and the narrow side 75, with its connecting lines to the control circuit 47 being guided through a bore 79 which proceeding from the recess 77 completely inside the key shaft 19.
  • the bore 79 extends obliquely to the longitudinal direction of the shaft.
  • the recess 77 is delimited on both sides by flat side cheeks 81, which protect the coupling coil 49 laterally. It is understood that the coupling coil 49 can be cast in the recess 77.
  • the coupling coil 43 can be cast with the holder 51 and, if appropriate, the circuit board 45.
  • the profile locking cylinder of FIGS. 7 and 8 differs from the locking cylinder explained above only in the design of the insertion side of its cylinder core. Components having the same effect are therefore designated by the reference numerals of FIGS. 1 to 6 and for Mark the distinction with the letter a. To explain the structure and the mode of operation, reference is made to the description of FIGS. 1 to 6. The key-side components are not shown in FIGS. 7 and 8, but are present. The same applies to components 33 to 39.
  • a cap 83 which is provided with a key insertion slot in its base and at least one of its side walls, is placed on the extension 55a and extends the extension 55a further to the outside of the holder 51a.
  • the cap 83 carries a completely circumferential, radially projecting ring flange 85 which engages in an annular groove between the ring part 53a and the cylindrical section 3a of the profile housing 1a and axially fixes the cap 83.
  • a projection of the cap 83 which engages in the insertion channel 5a of the cylinder core and fixes the cap 83 in a rotationally fixed manner on the cylinder core 9a, is not shown.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Electroluminescent Light Sources (AREA)
  • Burglar Alarm Systems (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

The electronic lock cylinder comprises a housing (1) with a cylinder core (9) which is mounted rotatably therein and which can be blocked in the conventional way by a key (15) via mechanical tumblers (21). The lock cylinder and the key (15) are assigned electronic control circuits (45, 47) which can be inductively coupled via coupling coils (43, 49) for the transmission of coding information. The coupling coil (43) of the lock cylinder is combined, together with all electronic components present within the lock cylinder and with a mounting (51), to form a constructional unit which is attached removably to one end face of the lock cylinder. In this way, the mechanical components and the electronic components of the lock cylinder can be mounted separately from one another, and the electronic components can, if appropriate, be exchanged, without the mechanical part of the lock cylinder having to be exchanged. <IMAGE>

Description

Die Erfindung betrifft einen Schließzylinder und insbesondere einen Schließzylinder mit mechanisch durch einen Schlüssel sperrbaren Zuhaltungen, der die Übertragung von Verschlüsselungsinformationen zwischen einer elektronischen Steuerschaltung des Schlüssels und einer elektronischen Steuerschaltung des Schließzylinders ermöglicht.The invention relates to a locking cylinder and in particular to a locking cylinder with tumblers that can be mechanically locked by a key, which enables the transfer of encryption information between an electronic control circuit of the key and an electronic control circuit of the locking cylinder.

Aus der EP-A-0 324 096 ist ein Profil-Schließzylinder bekannt, der in üblicher Weise ein Profilgehäuse und einen in einer Bohrung des Profilgehäuses drehbar gelagerten Zylinderkern mit einem in Richtung der Zylinderachse sich erstreckenden Einsteckkanal für einen Flachschlüssel umfaßt. Der Flachschlüssel steuert nicht nur mechanische Zuhaltungen des Schließzylinders, sondern enthält in seinem Griffteil eine elektronische Steuerschaltung, die über eine schlüsselseitige Koppelspule Verschlüsselungsdaten zu einer am Profilgehäuse angeordneten Koppelspule induktiv überträgt. An die Koppelspule des Schließzylinders ist eine weitere elektronische Steuerschaltung angeschlossen, die die übertragenen Verschlüsselungsdaten auswertet und bei Übereinstimmung der schlüsselseitigen Verschlüsselungsdaten mit den schließzylinderseitigen Verschlüsselungsdaten ein den Schließzustand repräsentierendes Steuersignal erzeugt. Der Schließzylinder umfaßt zusätzlich zu den mechanisch vom Schlüssel steuerbaren Zuhaltungen eine elektromagnetische Verriegelungseinrichtung, die den Zylinderkern gleichfalls relativ zum Profilgehäuse blockiert, jedoch abhängig von dem Steuersignal entriegelbar ist.From EP-A-0 324 096 a profile locking cylinder is known which in the usual way comprises a profile housing and a cylinder core rotatably mounted in a bore of the profile housing with an insertion channel extending in the direction of the cylinder axis for a flat key. The flat key not only controls mechanical tumblers of the locking cylinder, but also contains an electronic control circuit in its grip part, which transmits encryption data inductively via a key-side coupling coil to a coupling coil arranged on the profile housing. Another electronic control circuit is connected to the coupling coil of the lock cylinder, which controls the transmitted Evaluates encryption data and, if the key-side encryption data matches the locking cylinder-side encryption data, generates a control signal representing the locking state. In addition to the tumblers that can be mechanically controlled by the key, the locking cylinder also includes an electromagnetic locking device that also blocks the cylinder core relative to the profile housing, but can be unlocked depending on the control signal.

Die Koppelspule des aus der EP-A-324 096 bekannten Schließzylinders ist in einer Kunststoffhalterung untergebracht, die an einem Stirnende des Profilgehäuses mit Hilfe angeformter Rastorgane gehalten ist. Die Kunststoffhalterung steht über die Stirnfläche des Zylinderkerns vor, um die Koppelspule näher an die schlüsselseitig im Schlüsselgriff untergebrachte Koppelspule heranführen zu können. Bei in einem Schloß zum Beispiel einer Türe montierten Schließzylinder steht die Kunststoffhalterung damit einige Millimeter über die Frontfläche eines Türschilds vor, was die Gefahr ungewollter Beschädigungen und unbefugter Manipulationen in sich birgt.The coupling coil of the locking cylinder known from EP-A-324 096 is accommodated in a plastic holder which is held on an end face of the profile housing with the aid of molded-on locking elements. The plastic holder protrudes over the end face of the cylinder core in order to be able to bring the coupling coil closer to the coupling coil accommodated in the key handle on the key side. When a lock cylinder is installed in a lock, for example a door, the plastic bracket protrudes a few millimeters above the front surface of a door plate, which carries the risk of unwanted damage and unauthorized manipulation.

Im Normalfall sind die Magnetfelder der Koppelspulen vergleichsweise gering, und auch die von der schließzylinderseitigen Koppelspule erzeugten Signale sind vergleichsweise klein. Dies führt dazu, daß die elektronische Steuerschaltung möglichst nah an den Koppelspulen angeordnet werden sollte, um Signalverluste und Störungen zu mindern. Bei bekannten, auf Verschlüsselungsinformationen des Schlüssels ansprechenden elektronischen Schließzylindern ist es bekannt, die elektronische Steuerschaltung oder zumindest einen Teil ihrer Komponenten unmittelbar im Gehäuse des Schließzylinders unterzubringen. Bei herkömmlichen Schließzylindern dieser Art gestaltet sich jedoch die Montage schwierig, da elektronische Komponenten und mechanische Komponenten gleichzeitig montiert werden müssen.In the normal case, the magnetic fields of the coupling coils are comparatively small, and the signals generated by the coupling coil on the lock cylinder side are also comparatively small. This means that the electronic control circuit should be arranged as close as possible to the coupling coils in order to reduce signal losses and interference. In the case of known electronic locking cylinders which respond to encryption information of the key, it is known to accommodate the electronic control circuit or at least some of its components directly in the housing of the locking cylinder. Designed in conventional lock cylinders of this type assembly becomes difficult, however, since electronic components and mechanical components must be assembled at the same time.

Es ist Aufgabe der Erfindung, einen Schließzylinder anzugeben, dessen Komponenten einfacher als bisher zusammengebaut werden können.It is an object of the invention to provide a locking cylinder, the components of which can be assembled more easily than before.

Die Erfindung geht aus von einem Schließzylinder umfassend ein Gehäuse, wenigstens einen in einer Bohrung des Gehäuses drehbar gelagerten Zylinderkern mit einem in Richtung der Zylinderachse sich erstreckenden Einsteckkanal für einen Schlüssel, mehrere von dem Schlüssel mechanisch steuerbare Zuhaltungen, eine an dem Gehäuse abnehmbar gehaltene Halterung mit einem in der Nähe des Einsteckkanals angeordneten, insbesondere als Koppelspule ausgebildeten Informationsübertragungselement, das bei in den Einsteckkanal eingeführtem Schlüssel mit einem schlüsselseitigen, insbesondere ebenfalls als Koppelspule ausgebildeten Informationsübertragungselement einer schlüsselseitigen elektronischen Steuerschaltung zur Übertragung von Verschlüsselungsinformationen koppelbar ist und eine an das schließzylinderseitige Informationsübertragungselement angeschlossene, schließzylinderseitige elektronische Steuerschaltung, die abhängig von den übertragenen Verschlüsselungsinformationen ein den Schließzustand repräsentierendes Steuersignal insbesondere zur Steuerung einer den Zylinderkern zusätzlich zu den Zuhaltungen sperrenden elektromagnetischen Sperreinrichtung. Bei einem Schließzylinder dieser Art wird die vorstehende Aufgabe erfindungsgemäß dadurch gelöst, daß zumindest ein Teil der Komponenten der elektronischen Steuerschaltung am Gehäuse des Schließzylinders angeordnet sind und daß sämtliche am Gehäuse angeordneten Komponenten der Steuerschaltung, das Informationsübertragungselement und die Halterung eine Baueinheit bilden, die als Baueinheit abnehmbar am Gehäuse gehalten ist.The invention is based on a locking cylinder comprising a housing, at least one cylinder core rotatably mounted in a bore in the housing with an insertion channel for a key extending in the direction of the cylinder axis, a plurality of tumblers mechanically controllable by the key, and a holder which is detachably held on the housing an information transmission element arranged in the vicinity of the insertion channel, in particular in the form of a coupling coil, which, when a key is inserted into the insertion channel, can be coupled to a key-side information transmission element, in particular also in the form of a coupling coil, of a key-side electronic control circuit for transmitting encryption information, and a lock-cylinder side connected to the lock cylinder-side information transmission element electronic control circuit, which depends on the transmitted encryption information e control signal representing the closed state, in particular for controlling an electromagnetic locking device which locks the cylinder core in addition to the tumblers. In a lock cylinder of this type, the above object is achieved according to the invention in that at least some of the components of the electronic control circuit are arranged on the housing of the lock cylinder and in that all components of the control circuit arranged on the housing, the information transmission element and the holder form a structural unit which is detachably held on the housing as a structural unit.

Eine solche Bauart erlaubt es, zumindest die für die Signalübertragung über die Koppelspulen erforderlichen Eingangs- und/oder Ausgangsstufen in unmittelbarer Nähe der Koppelspule anzuordnen, was die Störsicherheit erhöht. Darüber hinaus können die mechanischen Komponenten des Schließzylinders und die elektronischen Komponenten gesondert voneinander zu Baueinheiten zusammengebaut werden, die erst in einem letzten Fertigungsschritt vereinigt werden. Dies hat auch den Vorteil, daß bei einem eventuellen Defekt die elektronische Baueinheit am Einbauort des Schließzylinders ausgewechselt werden kann, ohne daß der mechanische Teil des Schließzylinders mit ausgetauscht werden muß.Such a design allows at least the input and / or output stages required for signal transmission via the coupling coils to be arranged in the immediate vicinity of the coupling coil, which increases the interference immunity. In addition, the mechanical components of the locking cylinder and the electronic components can be assembled separately from one another to form structural units which are only combined in a final manufacturing step. This also has the advantage that, in the event of a defect, the electronic assembly can be replaced at the installation location of the locking cylinder without the mechanical part of the locking cylinder having to be replaced as well.

In einer bevorzugten Ausgestaltung der Erfindung, in welcher das Gehäuse als Profilgehäuse eines Profil-Schließzylinders ausgebildet ist und einen die Bohrung für den Zylinderkern enthaltenden Zylinderabschnitt sowie einen radial vom Zylinderabschnitt abstehenden Stegabschnitt umfaßt und bei welcher ferner die Halterung zumindest die axiale Stirnseite des Stegabschnitts überdeckt, ist vorgesehen, daß die Halterung eine mit der Bohrung gleichachsige Öffnung aufweist, in die eine aus der Bohrung vorstehende Verlängerung des Zylinderkerns eingreift und daß die am Gehäuse angeordneten Komponenten der Steuerschaltung auf einer mit ihrer Plattenebene quer zur Zylinderachse im Bereich der Stirnseite des Stegabschnitts angeordneten Schaltungsplatine angeordnet sind.In a preferred embodiment of the invention, in which the housing is designed as a profile housing of a profile locking cylinder and comprises a cylinder section containing the bore for the cylinder core and a web section projecting radially from the cylinder section and in which the holder also covers at least the axial end face of the web section, It is provided that the holder has an opening coaxial with the bore into which an extension of the cylinder core protrudes from the bore and that the components of the control circuit arranged on the housing are arranged on a circuit board arranged with its plate plane transverse to the cylinder axis in the region of the end face of the web section are arranged.

Ein Schließzylinder dieser Art kann im wesentlichen aus herkömmlichen Schließzylinderkomponenten aufgebaut werden. Insbesondere kann von herkömmlichen, standardisierten Schließzylindern ausgegangen werden, deren Zylinderkern und Profilgehäuse nur geringfügig zu modifizieren ist. Insbesondere braucht von standardisierten Außenabmessungen herkömmlicher Profilzylinder nicht abgewichen werden, so daß auch herkömmliche Sicherheits-Türbeschläge und Türschilder zur Abdeckung des Schließzylinders verwendet werden können. Da die Halterung im wesentlichen die gesamte Frontfläche des Profilgehäuses bildet, hat sie hinreichende Stabilität und läßt sich auch dauerhaft am Profilgehäuse befestigen. Die etwa parallel zur Stirnfläche des Stegabschnitts verlaufende Schaltungsplatine erfaßt Aufbohrversuche, da sie beim Aufbohren des Zuhaltungsbereichs als erste zerstört wird und die Zerstörung zur Alarmauslösung ausgenutzt werden kann.A lock cylinder of this type can essentially be constructed from conventional lock cylinder components. In particular, conventional, standardized Locking cylinders are assumed, the cylinder core and profile housing can be modified only slightly. In particular, there is no need to deviate from standardized external dimensions of conventional profile cylinders, so that conventional security door fittings and door plates can also be used to cover the locking cylinder. Since the bracket essentially forms the entire front surface of the profile housing, it has sufficient stability and can also be permanently attached to the profile housing. The circuit board, which runs approximately parallel to the end face of the web section, detects attempts at drilling since it is the first to be destroyed when the guard area is drilled out and the destruction can be used to trigger the alarm.

Die Halterung, die aus einem nicht magnetischen Material, beispielsweise aus Kunststoff aber auch aus nicht ferromagnetischem Metall besteht, weist zweckmäßigerweise einen der Außenkontur des Stegabschnitts angepaßten Ansatz auf, der über einen die Öffnung bildenden Ringabschnitt in Richtung der Zylinderachse vorsteht und eine Tasche enthält, in die der Stegabschnitt eingreift. Eine solche Halterung läßt sich mechanisch stabil und dauerhaft an dem Profilgehäuse befestigen, insbesondere dann, wenn die Tasche beiderseits des Stegabschnitts durch Wangen des Ansatzes begrenzt ist, die in konturgleichen Vertiefungen der Seitenflächen des Stegabschnitts sitzen und darüber hinaus die Halterung durch quer zur Zylinderachse durch die Wangen hindurch in den Stegabschnitt eingreifende, stiftförmige Befestigungselemente am Profilgehäuse befestigt, beispielsweise angeschraubt ist. Die konturgleichen, aneinanderliegenden Ränder der Wangen und der Vertiefungen führen die Halterung formschlüssig am Stegabschnitt kipp- und drehsicher, so daß einige wenige Befestigungselemente, beispielsweise je ein Befestigungselement auf jeder Seite für eine dauerhafte Anbringung ausreicht.The holder, which consists of a non-magnetic material, for example of plastic, but also of non-ferromagnetic metal, expediently has an attachment adapted to the outer contour of the web section, which protrudes over a ring section forming the opening in the direction of the cylinder axis and contains a pocket in which the web section engages. Such a bracket can be mechanically stable and permanently attached to the profile housing, especially if the pocket is limited on both sides of the web section by cheeks of the approach, which sit in contour-shaped recesses of the side surfaces of the web section and also the bracket by transverse to the cylinder axis through the Pin-shaped fastening elements engaging in the web section through the cheeks are fastened, for example screwed, to the profile housing. The identical, contiguous edges of the cheeks and the recesses guide the holder positively against tipping and rotation, so that a few fastening elements, for example one fastening element each sufficient for permanent attachment on each side.

Die Verlängerung des Zylinderkerns greift in die Öffnung der Halterung ein und trägt so mit zur Stabilisierung bei. Die Verlängerung kann hierbei einteilig an dem Zylinderkern angeformt sein; sie kann aber auch als vom Zylinderkern gesonderte Kappe ausgebildet sein, die auf einen am Stirnende des Zylinderkerns angeformten Vorsprung sitzt. Die letztgenannte Version hat den Vorteil, daß bei der Herstellung des Zylinderkerns von herkömmlichen Zylinderkernen mit standardisierten Abmessungen ausgegangen werden kann, da lediglich ein Sitz an dem Zylinderkern angeformt werden muß, um ihn durch die Kappe auf das gewünschte Maß verlängern zu können, ohne daß die übrigen Abmessungen, insbesondere die üblicherweise zur axialen Führung des Zylinderkerns vorgesehenen Ringflansche oder dergleichen verändert werden müßten. Für die axiale Führung der Kappe am Profilgehäuse weist die Kappe zweckmäßigerweise einen radial zur Zylinderachse nach außen abstehenden Ringflansch auf, der zwischen die Halterung und den Zylinderabschnitt des Profilgehäuses greift. Es versteht sich, daß die Kappe durch Vorsprünge oder dergleichen drehfest mit dem Zylinderkern gekuppelt sein kann, so daß sich eine in der Kappe vorgesehene Schlüsseleinführöffnung nicht relativ zum Einsteckkanal des Zylinderkerns verdrehen kann.The extension of the cylinder core engages in the opening of the bracket and thus contributes to stabilization. The extension can be integrally formed on the cylinder core; however, it can also be designed as a cap separate from the cylinder core, which sits on a projection formed on the front end of the cylinder core. The latter version has the advantage that conventional cylinder cores with standardized dimensions can be assumed in the manufacture of the cylinder core, since only a seat has to be molded onto the cylinder core in order to be able to be extended to the desired dimension by the cap without the other dimensions, in particular the ring flanges or the like usually provided for the axial guidance of the cylinder core would have to be changed. For the axial guidance of the cap on the profile housing, the cap expediently has an annular flange which projects radially outward to the cylinder axis and which engages between the holder and the cylinder section of the profile housing. It goes without saying that the cap can be coupled in a rotationally fixed manner to the cylinder core by means of projections or the like, so that a key insertion opening provided in the cap cannot rotate relative to the insertion channel of the cylinder core.

Bei dem aus der EP-A-324 096 bekannten Schließzylinder sitzt die Koppelspule an der Stirnfläche des Zylinders und wirkt mit einer im Griffteil des Schlüssels untergebrachten Koppelspule zusammen. Die Stirnseite des Schließzylinders muß hierbei über die Stirnfläche des Zylinderkerns hinaus zum Schlüsselgriff hin verlängert sein, um einen hinreichend geringen Koppelabstand zu gewährleisten.In the locking cylinder known from EP-A-324 096, the coupling coil sits on the end face of the cylinder and interacts with a coupling coil accommodated in the handle part of the key. The end face of the locking cylinder must be extended beyond the end face of the cylinder core towards the key handle in order to ensure a sufficiently small coupling distance.

Aus der DE-A-40 36 575 ist ein weiterer Schließzylinder bekannt, der eine seitlich des in einem Gehäuse drehbar angeordneten Zylinderkerns angeordnete Koppelspule enthält. Die Koppelspule sitzt auf einem U-förmigen Joch, dessen Schenkel einen beiderseits offenen Schlüsseleinsteckkanal in dem Zylinderkern zwischen sich einschließen. Im Schaft des zugeordneten Flachschlüssels sitzt im Abstand vom Griffteil des Schlüssels eine zylindrische Koppelspule, die sich zwischen den Schmalseiten des Schlüsselschafts erstreckt und beim Einstecken des Schlüssels in den Einsteckkanal des Zylinderkerns zwischen die Jochschenkel der schließzylinderseitigen Koppelspule geführt wird. Ein Schließzylinder dieser Art erfordert eine Sonderkonstruktion des Zylindergehäuses, und die durch den gesamten Schlüsselschaft sich hindurch erstreckende Koppelspule schwächt den Schlüsselschaft stark, so daß die Gefahr besteht, daß der Schlüssel bei unsachgemäßer Handhabung abbricht.From DE-A-40 36 575 a further locking cylinder is known which contains a coupling coil arranged laterally of the cylinder core rotatably arranged in a housing. The coupling coil sits on a U-shaped yoke, the legs of which enclose a key insertion channel, which is open on both sides, in the cylinder core between them. In the shaft of the assigned flat key sits a cylindrical coupling coil at a distance from the handle part of the key, which extends between the narrow sides of the key shaft and is guided between the yoke legs of the coupling cylinder-side coupling coil when the key is inserted into the insertion channel of the cylinder core. A lock cylinder of this type requires a special design of the cylinder housing, and the coupling coil which extends through the entire key shaft weakens the key shaft to a great extent, so that there is a risk of the key breaking off if handled improperly.

Unter einem zweiten Aspekt ist es Aufgabe der Erfindung, einen Schließzylinder anzugeben, der eine induktive Datenübertragung von einem Flachschlüssel zum Schließzylinder erlaubt, wobei im wesentlich herkömmlich aufgebaute Profil-Schließzylinder verwendet werden sollen, die zylinderseitige Koppelspule dennoch geschützt untergebracht sein soll und eine zu weitgehende mechanische Schwächung des Schlüssels im Bereich seines Schafts vermieden werden soll.In a second aspect, it is an object of the invention to provide a locking cylinder that allows inductive data transmission from a flat key to the locking cylinder, whereby essentially conventional profile locking cylinders are to be used, the cylinder-side coupling coil is nevertheless to be protected and a mechanical one that is too extensive The key should not be weakened in the area of its shaft.

Unter dem zweiten Aspekt geht die Erfindung von einem Profil-Schließzylinder aus, der folgende Komponenten umfaßt:
Ein Profilgehäuse, wenigstens einen in einer Bohrung des Profilgehäuses drehbar gelagerten Zylinderkern mit einem in Richtung der Zylinderachse sich erstreckenden Einsteckkanal für einen Flachschlüssel, mehrere von dem Flachschlüssel mechanisch steuerbare Zuhaltungen, eine im Bereich einer Stirnseite des Profilgehäuses angeordnete Koppelspule, die bei in den Einsteckkanal eingeführtem Flachschlüssel mit einer schlüsselseitigen Koppelspule einer schlüsselseitigen elektronischen Steuerschaltung zur induktiven Übertragung von Verschlüsselungsinformationen koppelbar ist und eine an die schließzylinderseitige Koppelspule angeschlossene, schließzylinderseitige elektronische Steuerschaltung, die abhängig von den übertragenen Verschlüsselungsinformationen ein den Schließzustand repräsentierendes Steuersignal insbesondere zur Steuerung einer den Zylinderkern zusätzlich zu den Zuhaltungen sperrenden Sperreinrichtung. Bei einem Schließzylinder dieser Art wird die vorstehend angegebene Aufgabe dadurch gelöst, daß der Einsteckkanal im Bereich der Stirnseite des Profilgehäuses auf zumindest einer seiner Schmalseiten zum Profilgehäuse hin radial offen ist, daß die Schließzylinderseitige Koppelspule so angeordnet ist, daß sie in der das Einstecken des Flachschlüssels in den Einsteckkanal erlaubenden Ruhestellung des Zylinderkerns zur Schmalseitenöffnung des Einsteckkanals ausgerichtet ist und daß die schlüsselseitige Koppelspule im Bereich der Schmalseite eines in den Einsteckkanal einsteckbaren Abschnitts eines Schlüsselschafts des Flachschlüssels angeordnet ist.
In the second aspect, the invention is based on a profile locking cylinder which comprises the following components:
A profile housing, at least one cylinder core rotatably mounted in a bore of the profile housing with a In the direction of the cylinder axis extending insertion channel for a flat key, several tumblers mechanically controllable by the flat key, a coupling coil arranged in the area of an end face of the profile housing, which can be coupled to a key-side coupling coil of a key-side electronic control circuit for inductive transmission of encryption information when a flat key is inserted into the insertion channel and a locking cylinder-side electronic control circuit which is connected to the locking cylinder-side coupling coil and which, depending on the transmitted encryption information, transmits a control signal representing the locking state, in particular for controlling a locking device which locks the cylinder core in addition to the tumblers. In a lock cylinder of this type, the above-stated object is achieved in that the insertion channel in the region of the end face of the profile housing is radially open towards the profile housing on at least one of its narrow sides in such a way that the lock cylinder-side coupling coil is arranged in such a way that it inserts the flat key is aligned in the rest position allowing the cylinder core to the narrow side opening of the insertion channel and that the key-side coupling coil is arranged in the region of the narrow side of a portion of a key shaft of the flat key that can be inserted into the insertion channel.

Die Schließzylinderseitige Koppelspule ist unter Ausnutzung des im Stegabschnitt des Profilzylinders vorhandenen Bauraums geschützt im Inneren des Profilgehäuses untergebracht, so daß sie direkt mit einer an einer Schmalseite des Schlüsselschafts angeordneten schlüsselseitigen Koppelspule induktiv gekoppelt werden kann. Da die schlüsselseitige Koppelspule sich nicht durch den Schlüsselschaft hindurch erstreckt, wird der Schlüsselschaft mechanisch nicht geschwächt, und auch die Unterbringung der schließzylinderseitigen Koppelspule innerhalb standardisierter Abmessungen eines Profilzylinders bereitet keine Schwierigkeiten.The lock cylinder-side coupling coil is protected in the interior of the profile housing, taking advantage of the space available in the web section of the profile cylinder, so that it can be inductively coupled directly to a key-side coupling coil arranged on a narrow side of the key shaft. Because the key-side coupling coil is not through the key shaft extends through, the key shaft is not mechanically weakened, and the accommodation of the locking cylinder-side coupling coil within standardized dimensions of a profile cylinder is not difficult.

Der zweite Aspekt der Erfindung läßt sich bevorzugt bei einem Zylinderschloß der unter dem erstgenannten Aspekt erläuterten Art, bei welchem die elektronischen Komponenten, soweit sie in dem Gehäuse des Schließzylinders untergebracht sind, zu einer Baueinheit zusammengefaßt sind, einsetzen. Dies gilt insbesondere dann, wenn die schließzylinderseitige Koppelspule an einer Schaltungsplatine gehalten ist, die zugleich auch wenigstens einen Teil der elektronischen Komponenten der Steuerschaltung trägt. Auf diese Weise läßt sich die vergleichsweise kleine, schließzylinderseitige Koppelspule leichter im Profilgehäuse montieren.The second aspect of the invention can preferably be used in a cylinder lock of the type explained under the first-mentioned aspect, in which the electronic components, insofar as they are accommodated in the housing of the lock cylinder, are combined to form one structural unit. This applies in particular if the locking cylinder-side coupling coil is held on a circuit board which at the same time also carries at least some of the electronic components of the control circuit. In this way, the comparatively small coupling cylinder-side coupling coil can be mounted more easily in the profile housing.

Die schlüsselseitige elektronische Steuerschaltung ist bei einem Flachschlüssel, welcher für einen Schließzylinder der vorstehenden Art geeignet ist, zweckmäßigerweise in einem Griffteil des Flachschlüssels angeordnet, wobei der Schlüsselschaft im Bereich des Griffteils eine Flachseitenverbreiterung aufweist, die eine vom Griffteil wegweisende Einsteck-Anschlagfläche bildet. Die mit einer Gegenanschlagfläche des Zylinderkerns zusammenwirkende Einsteck-Anschlagfläche sorgt für die axiale Justierung des Flachschlüssels relativ zu den mechanischen Zuhaltungen des Schließzylinders. Die schlüsselseitige Koppelspule ist hierbei bevorzugt an einer in Schaftlängsrichtung sich erstreckenden Schmalseite der Flachseitenverbreiterung zwischen der Anschlagfläche und dem Griffteil angeordnet, also an einer Stelle, an der der Schlüsselschaft durch die Flachseitenverbreiterung ohnehin erhöhte Festigkeit hat. Die Koppelspule sitzt zweckmäßigerweise in einer Aussparung der Flachseitenverbreiterung, von der zur Aufnahme von Anschlußleitungen der Koppelspule eine vollständig im Inneren des Schlüsselschafts verlaufende Bohrung zum Inneren des Griffteils geführt ist. Da sich die Aussparung bis in die Anschlagfläche hinein erstreckt, kann auch die Bohrung von der Anschlagfläche her eingebracht werden, was auch den Einbau der Koppelspule in die Aussparung erleichtert. Zum Schutz der Koppelspule erstreckt sich die Aussparung nicht bis in die Flachseiten des Schlüsselschafts hinein, so daß die Koppelspule durch Flachseitenwangen abgedeckt ist.In the case of a flat key, which is suitable for a locking cylinder of the above type, the key-side electronic control circuit is expediently arranged in a grip part of the flat key, the key shaft having a flat side widening in the region of the grip part, which forms a plug-in stop surface pointing away from the grip part. The plug-in stop surface interacting with a counter stop surface of the cylinder core ensures the axial adjustment of the flat key relative to the mechanical tumblers of the locking cylinder. The key-side coupling coil is preferably arranged on a narrow side of the flat side widening extending in the longitudinal direction of the shaft between the stop surface and the grip part, that is to say at a point at which the key shaft has increased strength anyway due to the flat side widening Has. The coupling coil is expediently seated in a recess in the flat side widening from which a bore running completely inside the key shaft is guided to the inside of the handle part for receiving connecting lines of the coupling coil. Since the recess extends into the stop surface, the bore can also be made from the stop surface, which also facilitates the installation of the coupling coil in the recess. To protect the coupling coil, the cutout does not extend into the flat sides of the key shaft, so that the coupling coil is covered by flat side cheeks.

Im folgenden werden Ausführungsbeispiele der Erfindung anhand einer Zeichnung näher erlautert. Hierbei zeigt:

Fig. 1
eine Teildarstellung eines elektronischen Profil-Schließzylinders;
Fig. 2
eine Stirnansicht des Schließzylinders;
Fig. 3
eine Schnittansicht des Profilzylinders, gesehen entlang einer Linie III-III in Fig. 2;
Fig. 4
eine Schnittansicht des Profilzylinders ähnlich Fig. 3, jedoch mit eingestecktem, teilweise geschnittenem Flachschlüssel;
Fig. 5
eine Schmalseitenansicht des Flachschlüssels;
Fig. 6
eine Flachseitenansicht des Flachschlüssels;
Fig. 7
eine Explosionsdarstellung einer Variante eines elektronischen Profil-Schließzylinders und
Fig. 8
eine Schnittansicht des Profilzylinders aus Fig. 7.
Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. Here shows:
Fig. 1
a partial view of an electronic profile locking cylinder;
Fig. 2
an end view of the lock cylinder;
Fig. 3
a sectional view of the profile cylinder, seen along a line III-III in Fig. 2;
Fig. 4
a sectional view of the profile cylinder similar to Figure 3, but with an inserted, partially cut flat key.
Fig. 5
a narrow side view of the flat key;
Fig. 6
a flat side view of the flat key;
Fig. 7
an exploded view of a variant of an electronic profile lock cylinder and
Fig. 8
7 shows a sectional view of the profile cylinder from FIG. 7.

Der in den Fig. 1 bis 4 dargestellte Profil-Schließzylinder hat ein Profilgehäuse 1 mit einem Zylinderabschnitt 3, der in einer zylindrischen Bohrung 5 einen um seine Zylinderachse 7 drehbaren Zylinderkern 9 enthält, sowie einen radial zur Zylinderachse 7 abstehenden Stegabschnitt 11. Der Zylinderkern 9 enthält einen Einsteckkanal 13, für einen allgemein mit 15 (Fig. 4) bezeichneten Flachschlüssel, dessen von einem Griffteil 17 abstehender Schlüsselschaft 19 in herkömmlicher Weise mechanische Zuhaltungsstiftpaare 21 steuert. Die Zuhaltungsstiftpaare 21 sitzen von Federn 23 zum Zylinderkern 9 hin vorgespannt in Bohrungen 25, 27 des Stegabschnitts 11 einerseits bzw. des Zylinderkerns 9 andererseits, wobei die Bohrungen 25, 27 in einer Ruhestellung des Zylinderkerns 9, in welcher der Flachschlüssel 15 eingesteckt bzw. abgezogen werden kann, zueinander gleichachsig ausgerichtet sind. Fig. 3 zeigt die gesperrte Stellung des Schließzylinders bei abgezogenem Schlüssel, in welcher die Zuhaltungsstiftpaare 21 radial über die Mantelfläche des Zylinderkerns 9 hinweg in den Stegabschnitt 11 hinreichen und den Zylinderkern 9 blockieren. Fig. 4 zeigt den Schließzylinder bei eingestecktem Flachschlüssel 15, dessen Schlüsselkerben 29 die Trennflächen 31 der Zuhaltungsstiftpaare 21 zum Mantel des Zylinderkerns 9 ausrichten, so daß dieser relativ zum Profilgehäuse 1 gedreht werden kann.The profile locking cylinder shown in FIGS. 1 to 4 has a profile housing 1 with a cylinder section 3, which contains a cylinder core 9 rotatable about its cylinder axis 7 in a cylindrical bore 5, and a web section 11 projecting radially to the cylinder axis 7. The cylinder core 9 contains an insertion channel 13 for a flat key, generally designated 15 (FIG. 4), the key shaft 19 of which protrudes from a grip part 17 controls mechanical tumbler pin pairs 21 in a conventional manner. The tumbler pin pairs 21 are biased by springs 23 towards the cylinder core 9 in bores 25, 27 of the web section 11 on the one hand or of the cylinder core 9 on the other hand, the bores 25, 27 in a rest position of the cylinder core 9, in which the flat key 15 is inserted or removed can be aligned with each other. FIG. 3 shows the locked position of the locking cylinder when the key is removed, in which the tumbler pin pairs 21 extend radially beyond the lateral surface of the cylinder core 9 into the web section 11 and block the cylinder core 9. Fig. 4 shows the lock cylinder with inserted flat key 15, the key notches 29 align the parting surfaces 31 of the tumbler pin pairs 21 to the jacket of the cylinder core 9 so that it can be rotated relative to the profile housing 1.

Zusätzlich zu den mechanischen Zuhaltungen ist der Schließzylinder durch eine elektromagnetische Verriegelungseinrichtung 33 sperrbar. Die den Zylinderkern 9 beispielsweise mittels eines federbelasteten Ankers 35 blockierende Verriegelungseinrichtung 33 umfaßt einen Elektromagnet 37, der bei Zuführung eines Steuerimpulses den Anker 35 betätigt und den Zylinderkern 9 für die Dauer des Steuerimpulses zur Drehung durch den Flachschlüssel 15 freigibt.In addition to the mechanical tumblers, the locking cylinder can be locked by an electromagnetic locking device 33. The locking device 33 which blocks the cylinder core 9, for example by means of a spring-loaded armature 35, comprises an electromagnet 37 which actuates the armature 35 when a control pulse is supplied and releases the cylinder core 9 for rotation by the flat key 15 for the duration of the control pulse.

Zur Steuerung der Verriegelungseinrichtung 33 ist dem Schließzylinder eine allgemein mit 39 bezeichnete elektronische Steuerschaltung zugeordnet, die mit deren Hauptkomponenten außerhalb des Schließzylinders, beispielsweise im Bereich des dem Schließzylinder zugeordneten Schlosses oder auch außerhalb der durch das Schloß gesperrten Türe oder dergleichen angeordnet ist und über eine durch Steckverbindungen 41 trennbare Verbindungsleitung mit einer Koppelspule 43 an dem Schließzylinder verbunden ist. Ein Teil der elektronischen Komponenten der elektronischen Steuerschaltung 39 ist hierbei in unmittelbarer Nähe der Koppelspule 43 auf einer Schaltungsplatine 45 in dem Schließzylinder untergebracht, um die vergleichsweise schwachen Signale der Koppelspule 43 störungsfreier verarbeiten zu können.To control the locking device 33, the locking cylinder is an electronic, generally designated 39 Control circuit assigned, which is arranged with its main components outside the lock cylinder, for example in the area of the lock assigned to the lock cylinder or also outside the door locked by the lock or the like and is connected to a coupling coil 43 on the lock cylinder via a connecting line separable by plug connections 41. Some of the electronic components of the electronic control circuit 39 are housed in the immediate vicinity of the coupling coil 43 on a circuit board 45 in the locking cylinder, in order to be able to process the comparatively weak signals of the coupling coil 43 without interference.

Im Griffteil 17 des Schlüssels ist eine weitere elektronische Schaltung 47 untergebracht, die mit einer im Schlüsselschaft 19 vorgesehenen weiteren Koppelspule 49 verbunden ist. Bei, wie in Fig. 4 dargestellt, in den Schließzylinder eingestecktem Flachschlüssel 15 sind die Koppelspulen 43, 49 zueinander ausgerichtet und miteinander induktiv gekoppelt. Die Steuerschaltungen 39, 47 übertragen in beiden Richtungen Verschlüsselungsinformationen, von welchen abhängig die Steuerschaltung 39 bei Übereinstimmung den die Verriegelungseinrichtung 33 entsperrenden Steuerimpuls erzeugt. Um die Koppelspulen 43, 49 einander eng annähern zu können, ist der in der Ruhestellung des Zylinderkerns 9 der Koppelspule 43 benachbarte Bereich der koppelspulenseitigen Schmalseite des Einsteckkanals 13 offen, und die Koppelspule 43 grenzt unmittelbar an den Umfang des Zylinderkerns 9 an.A further electronic circuit 47 is accommodated in the handle part 17 of the key and is connected to a further coupling coil 49 provided in the key shaft 19. With the flat key 15 inserted into the locking cylinder, as shown in FIG. 4, the coupling coils 43, 49 are aligned with one another and inductively coupled to one another. The control circuits 39, 47 transmit encryption information in both directions, on which the control circuit 39 generates the control pulse which unlocks the locking device 33 if they match. In order to be able to bring the coupling coils 43, 49 closely together, the region of the narrow side of the insertion channel 13 on the coupling coil side in the rest position of the cylinder core 9 of the coupling coil 43 is open, and the coupling coil 43 is directly adjacent to the circumference of the cylinder core 9.

Die Schaltungsplatine 45 trägt sämtliche schließzylinderseitigen elektronischen Komponenten der Steuerschaltung 39 und ist zusammen mit der Koppelspule 43 und einer Halterung 51 zu einer Baueinheit vereinigt, die als solche lösbar am Profilgehäuse 1 befestigt ist. Die mechanischen Komponenten des Schließzylinders können damit gesondert von den elektronischen Komponenten zusammengebaut werden, so daß die elektronischen Komponenten erst in einem letzten Arbeitsschritt angefügt werden. Auch können die elektronischen Komponenten bei einem Defekt ausgewechselt werden, ohne daß die mechanischen Komponenten des Schließzylinders ebenfalls ausgetauscht werden müßten.The circuit board 45 carries all the locking cylinder-side electronic components of the control circuit 39 and is combined with the coupling coil 43 and a holder 51 to form a structural unit which, as such is releasably attached to the profile housing 1. The mechanical components of the locking cylinder can thus be assembled separately from the electronic components, so that the electronic components are only added in a last step. In the event of a defect, the electronic components can also be replaced without the mechanical components of the locking cylinder also having to be replaced.

Um dies zu erreichen, ist die beispielsweise aus Kunststoff oder einem sonstigen nicht magnetischen Material bestehende Halterung 51 als Formteil ausgebildet und auf die Stirnseite des Profilgehäuses 1 aufgesetzt. Die Halterung 51 umschließt mit einem eine Öffnung 52 bildenden Ringteil 53 eine stirnseitige, axiale Verlängerung 55 des Zylinderkerns 9 und hat seitlich des Ringteils 53 einen Ansatz 57. Der Ansatz 57 hat eine mit der Außenkontur des Stegabschnitts 11 übereinstimmende Kontur und bildet zwischen zwei Wangen 59, von denen in Fig. 1 lediglich eine zu erkennen ist, eine Tasche 61, in die der Stegabschnitt 11 eingreift. Der Stegabschnitt 11 hat in seinem in die Tasche 61 eingreifenden Bereich eine konturgleiche Aussparung 63, die den Ansatz 57 formschlüssig mit ihren Rändern umschließt, so daß die Halterung 51 weitgehend kippsicher an dem Schließzylinder geführt ist. Stifte oder Schrauben 65 fixieren die Halterung 51 im Bereich der Wangen 59 am Stegabschnitt 11.In order to achieve this, the holder 51, which is made of plastic or another non-magnetic material, for example, is designed as a molded part and is placed on the end face of the profile housing 1. The holder 51 encloses with an annular part 53 forming an opening 52 an end axial extension 55 of the cylinder core 9 and has a shoulder 57 on the side of the ring part 53. The shoulder 57 has a contour that matches the outer contour of the web section 11 and forms between two cheeks 59 1, of which only one can be seen, a pocket 61 into which the web portion 11 engages. The web portion 11 has in its area engaging in the pocket 61 a recess 63 of the same shape, which encloses the shoulder 57 in a form-fitting manner with its edges, so that the holder 51 is guided against the lock cylinder to a large extent so as not to tip over. Pins or screws 65 fix the holder 51 in the region of the cheeks 59 on the web section 11.

Die Platine 45 erstreckt sich senkrecht zur Zylinderachse 7 und überlappt die Stirnfläche des Stegabschnitts 11. Bei einem Aufbohrversuch, bei welchem die Zuhaltungsbohrungen 25 zerstört werden sollen, wird zunächst die Platine 45 zerstört, was als Sabotageversuch durch die Steuerschaltung 39 erfaßt und zur Alarmauslösung ausgenutzt wird. Zusätzlich können zwischen der Halterung 51 und der Zuhaltungsstiftreihe gehärtete Stahlstifte 67 oder dergleichen als Aufbohrschutz in den Stegabschnitt 11 eingesetzt werden.The circuit board 45 extends perpendicular to the cylinder axis 7 and overlaps the end face of the web section 11. In a drilling attempt in which the tumbler bores 25 are to be destroyed, the circuit board 45 is first destroyed, which is detected as a sabotage attempt by the control circuit 39 and used to trigger the alarm becomes. In addition, hardened steel pins 67 or the like can be inserted between the holder 51 and the tumbler pin row as a drill protection in the web section 11.

Die Fig. 4 bis 6 zeigen Einzelheiten des Flachschlüssels 15, der im Bereich der Basis seines Schlüsselschafts 19 eine bei eingestecktem Schlüssel in die Verlängerung 55 des Zylinderkerns 9 eingreifende Flachseitenverbreiterung 69 hat. Die Flachseitenverbreiterung 69 bildet vom Griffteil 17 weggerichtet eine Anschlagfläche 71, die den Schlüssel für die mechanische Schließung des Schließzylinders an einer Gegenanschlagfläche 73 (Fig. 4) des Zylinderkerns 9 fixiert. Die Anschlagflächen 71, 73 sorgen zugleich für die Ausrichtung der Koppelspulen 43, 49. Die Koppelspule 49 sitzt in einer zur Anschlagfläche 71 und zur Schmalseite 75 offenen Aussparung 77 der Flachseitenverbreiterung 69, wobei ihre Verbindungsleitungen zur Steuerschaltung 47 durch eine Bohrung 79 geführt sind, die ausgehend von der Aussparung 77 vollständig im Inneren des Schlüsselschafts 19 verläuft. Die Bohrung 79 verläuft schräg zur Schaftlängsrichtung. Zu den Flachseiten des Schafts 19 hin ist die Aussparung 77 auf beiden Seiten durch Flachseitenwangen 81 begrenzt, die die Koppelspule 49 seitlich schützen. Es versteht sich, daß die Koppelspule 49 in der Aussparung 77 vergossen sein kann. Ebenso kann die Koppelspule 43 mit der Halterung 51 und gegebenenfalls der Schaltungsplatine 45 vergossen sein.4 to 6 show details of the flat key 15, which in the area of the base of its key shaft 19 has a flat side widening 69 which engages in the extension 55 of the cylinder core 9 when the key is inserted. The flat side widening 69, facing away from the handle part 17, forms a stop surface 71 which fixes the key for the mechanical closure of the locking cylinder on a counter stop surface 73 (FIG. 4) of the cylinder core 9. The stop surfaces 71, 73 also ensure the alignment of the coupling coils 43, 49. The coupling coil 49 is seated in a recess 77 of the flat side widening 69 which is open to the stop surface 71 and the narrow side 75, with its connecting lines to the control circuit 47 being guided through a bore 79 which proceeding from the recess 77 completely inside the key shaft 19. The bore 79 extends obliquely to the longitudinal direction of the shaft. To the flat sides of the shaft 19, the recess 77 is delimited on both sides by flat side cheeks 81, which protect the coupling coil 49 laterally. It is understood that the coupling coil 49 can be cast in the recess 77. Likewise, the coupling coil 43 can be cast with the holder 51 and, if appropriate, the circuit board 45.

Der Profilschließzylinder der Fig. 7 und 8 unterscheidet sich von dem vorstehend erläuterten Schließzylinder lediglich durch die Gestaltung der Einsteckseite seines Zylinderkerns. Gleichwirkende Komponenten sind deshalb mit den Bezugszahlen der Fig. 1 bis 6 bezeichnet und zur Unterscheidung mit dem Buchstaben a versehen. Zur Erläuterung des Aufbaus und der Wirkungsweise wird auf die Beschreibung der Fig. 1 bis 6 Bezug genommen. Die schlüsselseitigen Komponenten sind in den Fig. 7 und 8 nicht dargestellt, jedoch vorhanden. Entsprechendes gilt für die Komponenten 33 bis 39.The profile locking cylinder of FIGS. 7 and 8 differs from the locking cylinder explained above only in the design of the insertion side of its cylinder core. Components having the same effect are therefore designated by the reference numerals of FIGS. 1 to 6 and for Mark the distinction with the letter a. To explain the structure and the mode of operation, reference is made to the description of FIGS. 1 to 6. The key-side components are not shown in FIGS. 7 and 8, but are present. The same applies to components 33 to 39.

Während die axiale Verlängerung 55 des Schließkerns 9 in Fig. 3 das Ringteil 53 der Halterung 51 auf deren gesamte Tiefe durchdringt, ist die Verlängerung 55a des Zylinderkerns 9a des Schließzylinders der Fig. 7 und 8 kürzer ausgebildet, so daß die Verlängerung 55a durch eine Abdrehung eines herkömmlichen Zylinderkerns mit Standardabmessungen hergestellt werden kann. Auf die Verlängerung 55a ist eine in ihrem Boden und zumindest einer ihrer Seitenwände mit einem Schlüsseleinführschlitz versehene Kappe 83 aufgesetzt, die die Verlängerung 55a bis zur Außenseite der Halterung 51a weiter verlängert. Die Kappe 83 trägt einen vollständig umlaufenden, radial abstehenden Ringflansch 85, der in eine Ringnut zwischen dem Ringteil 53a und dem Zylinderabschnitt 3a des Profilgehäuses 1a eingreift und die Kappe 83 axial fixiert. Nicht dargestellt ist ein Vorsprung der Kappe 83, der in den Einsteckkanal 5a des Zylinderkerns eingreift und die Kappe 83 drehfest an dem Zylinderkern 9a fixiert.While the axial extension 55 of the locking core 9 in FIG. 3 penetrates the ring part 53 of the holder 51 over its entire depth, the extension 55a of the cylinder core 9a of the locking cylinder of FIGS. 7 and 8 is shorter, so that the extension 55a is twisted off of a conventional cylinder core with standard dimensions. A cap 83, which is provided with a key insertion slot in its base and at least one of its side walls, is placed on the extension 55a and extends the extension 55a further to the outside of the holder 51a. The cap 83 carries a completely circumferential, radially projecting ring flange 85 which engages in an annular groove between the ring part 53a and the cylindrical section 3a of the profile housing 1a and axially fixes the cap 83. A projection of the cap 83, which engages in the insertion channel 5a of the cylinder core and fixes the cap 83 in a rotationally fixed manner on the cylinder core 9a, is not shown.

Claims (11)

Schließzylinder, umfassend ein Gehäuse (1), wenigstens einen in einer Bohrung (5) des Gehäuses (1) drehbar gelagerten Zylinderkern (9) mit einem in Richtung der Zylinderachse (7) sich erstreckenden Einsteckkanal (13) für einen Schlüssel (15) mehrere von dem Schlüssel (15) mechanisch steuerbare Zuhaltungen (21),
eine an dem Gehäuse (1) abnehmbar gehaltene Halterung (51) mit einem in der Nähe des Einsteckkanals (13) angeordneten, insbesondere als Koppelspule ausgebildeten Informationsübertragungselement (43), das bei in dem Einsteckkanal (13) eingeführtem Schlüssel (15) mit einem schlüsselseitigen, insbesondere ebenfalls als Koppelspule ausgebildeten Informationsübertragungselement (49) einer schlüsselseitigen elektronischen Steuerschaltung (47) zur Übertragung von Verschlüsselungsinformationen koppelbar ist,
und eine an das schließzylinderseitige Informationsübertragungselement (43) angeschlossene schließzylinderseitige, elektronische Steuerschaltung (39), die abhängig von den übertragenen Verschlüsselungsinformationen ein den Schließzustand repräsentierendes Steuersignal insbesondere zur Steuerung einer den Zylinderkern (9) zusätzlich zu den Zuhaltungen (21) sperrenden elektromagnetischen Sperreinrichtung (33),
dadurch gekennzeichnet, daß zumindest ein Teil der Komponenten der elektronischen Steuerschaltung (39) am Gehäuse (1) angeordnet ist und daß sämtliche am Gehäuse (1) angeordneten Komponenten der Steuerschaltung (39), das Informationsübertragungselement (43) und die Halterung (51) eine Baueinheit bilden, die als Baueinheit abnehmbar am Gehäuse (1) gehalten ist.
Lock cylinder comprising a housing (1), at least one cylinder core (9) rotatably mounted in a bore (5) of the housing (1) with one insertion channel (13) for a key (15) extending in the direction of the cylinder axis (7) tumblers (21) mechanically controllable by the key (15),
a holder (51) held detachably on the housing (1) with an information transmission element (43) arranged in the vicinity of the insertion channel (13), in particular in the form of a coupling coil, which, when the key (15) is inserted into the insertion channel (13), has a key-side , in particular also in the form of a coupling coil, an information transmission element (49) of a key-side electronic control circuit (47) can be coupled for the transmission of encryption information,
and an electronic control circuit (39) connected to the lock cylinder-side information transmission element (43), which, depending on the transmitted encryption information, transmits a control signal representing the lock state, in particular for controlling an electromagnetic locking device (33) which locks the cylinder core (9) in addition to the tumblers (21) ),
characterized in that at least some of the components of the electronic control circuit (39) are arranged on the housing (1) and that all the components of the control circuit (39) arranged on the housing (1), the information transmission element (43) and the holder (51) are one Unit form, which is held as a structural unit detachably on the housing (1).
Schließzylinder nach Anspruch 1, wobei das Gehäuse als Profilgehäuse (1) eines Profil-Schließzylinders ausgebildet ist und einen die Bohrung (5) für den Zylinderkern (9) enthaltenden Zylinderabschnitt (3) und einen radial vom Zylinderabschnitt (3) abstehenden Stegabschnitt (11) umfaßt und wobei die Halterung (51) zumindest die axiale Stirnseite des Stegabschnitts (11) überdeckt,
dadurch gekennzeichnet, daß die Halterung (51) eine mit der Bohrung (5) gleichachsige Öffnung (52) aufweist, in die eine aus der Bohrung (5) vorstehende Verlängerung (55; 55a, 83) des Zylinderkerns (9) eingreift, und daß die am Gehäuse (1) angeordneten Komponenten der Steuerschaltung (39) auf einer mit ihrer Plattenebene quer zur Zylinderachse (7) im Bereich der Stirnseite des Stegabschnitts (11) angeordneten Schaltungsplatine (45) angeordnet sind.
Lock cylinder according to claim 1, wherein the housing is designed as a profile housing (1) of a profile lock cylinder and a cylinder section (3) containing the bore (5) for the cylinder core (9) and a web section (11) projecting radially from the cylinder section (3). comprises and wherein the holder (51) covers at least the axial end face of the web section (11),
characterized in that the holder (51) has an opening (52) coaxial with the bore (5) into which an extension (55; 55a, 83) of the cylinder core (9) protruding from the bore (5) engages, and in that the components of the control circuit (39) arranged on the housing (1) are arranged on a circuit board (45) arranged with its plate plane transverse to the cylinder axis (7) in the region of the end face of the web section (11).
Schließzylinder nach Anspruch 2, dadurch gekennzeichnet, daß die Halterung (51) einen der Außenkontur des Stegabschnitts (11) angepaßten Ansatz (57) aufweist, der über einen die Öffnung (52) bildenden Ringabschnitt (53) in Richtung der Zylinderachse (7) vorsteht und eine Tasche (61) enthält, in die der Stegabschnitt (11) eingreift.Locking cylinder according to claim 2, characterized in that the holder (51) has a shoulder (57) which is adapted to the outer contour of the web section (11) and which projects over a ring section (53) forming the opening (52) in the direction of the cylinder axis (7) and contains a pocket (61) in which the web portion (11) engages. Schließzylinder nach Anspruch 3, dadurch gekennzeichnet, daß die Tasche (61) beiderseits des Stegabschnitts (11) durch Wangen (59) des Ansatzes (57) begrenzt ist, die in konturgleichen Vertiefungen (63) der Seitenflächen des Stegabschnitts (11) sitzen und daß die Halterung (51) durch quer zur Zylinderachse (7) durch die Wangen (59) hindurch in den Stegabschnitt (11) eingreifende, stiftförmige Befestigungselemente (65) am Profilgehäuse (1) befestigt ist.Lock cylinder according to claim 3, characterized in that the pocket (61) on both sides of the web section (11) is delimited by cheeks (59) of the extension (57) which sit in contour-like depressions (63) of the side surfaces of the web section (11) and in that the bracket (51) by transverse to the cylinder axis (7) through the cheeks (59) in the web portion (11) engaging, pin-shaped fastening elements (65) is attached to the profile housing (1). Schließzylinder nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die in die Öffnung der Halterung (51) eingreifende Verlängerung (55) des Zylinderkerns (9) einteilig an dem Zylinderkern (9) angeformt ist.Lock cylinder according to one of claims 2 to 4, characterized in that the extension (55) of the cylinder core (9) which engages in the opening of the holder (51) is integrally formed on the cylinder core (9). Schließzylinder nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die in die Öffnung (52a) der Halterung (51) eingreifende Verlängerung als vom Zylinderkern (9a) gesonderte Kappe (83) ausgebildet ist, die auf einem am Stirnende des Zylinderkerns (9a) angeformten Vorsprung (55a) sitzt.Lock cylinder according to one of claims 2 to 4, characterized in that the extension engaging in the opening (52a) of the holder (51) is designed as a cap (83) separate from the cylinder core (9a), which is on a front end of the cylinder core (9a ) molded projection (55a) sits. Schließzylinder nach Anspruch 6, dadurch gekennzeichnet, daß die Kappe (83) einen radial zur Zylinderachse (7a) nach außen abstehenden Ringflansch (85) aufweist, der zwischen die Halterung (51a) und den Zylinderabschnitt (3a) des Profilgehäuses (1a) greift und die Kappe (83) axial fixiert.Lock cylinder according to claim 6, characterized in that the cap (83) has an annular flange (85) which projects radially outward to the cylinder axis (7a) and which engages between the holder (51a) and the cylinder section (3a) of the profile housing (1a) and the cap (83) axially fixed. Schließzylinder, umfassend ein Profil-Gehäuse (1) wenigstens einen in einer Bohrung (5) des ProfilGehäuses (1) drehbar gelagerten Zylinderkern (9) mit einem in Richtung der Zylinderachse (7) sich erstreckenden Einsteckkanal (13) für einen Flachschlüssel (15), mehrere von dem Flachschlüssel (15) mechanisch steuerbare Zuhaltungen (21),
eine im Bereich einer Stirnseite des Profil-Gehäuses (1) angeordnete Koppelspule (43), die bei in den Einsteckkanal (13) eingeführtem Flachschlüssel (15) mit einer schlüsselseitigen Koppelspule (49) einer schlüsselseitigen, elektronischen Steuerschaltung (47) zur induktiven Übertragung von Verschlüsselungsinformationen koppelbar ist,
und eine an die Schließzylinderseitige Koppelspule (43) angeschlossene, Schließzylinderseitige, elektronische Steuerschaltung (39), die abhängig von den übertragenen Verschlüsselungsinformationen ein den Schließzustand repräsentierendes Steuersignal insbesondere zur Steuerung einer den Zylinderkern (9) zusätzlich zu den Zuhaltungen (21) sperrenden Sperreinrichtung (33), insbesondere nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß der Einsteckkanal (13) im Bereich der Stirnseite des Profilgehäuses (1) auf zumindest einer seiner Schmalseiten zum Profilgehäuse (1) hin radial offen ist, daß die Schließzylinderseitige Koppelspule (43) so angeordnet ist, daß sie in der das Einstecken des Flachschlüssels (15) in den Einsteckkanal (13) erlaubenden Ruhestellung des Zylinderkerns (9) zur Schmalseitenöffnung des Einsteckkanals (13) ausgerichtet ist und daß die schlüsselseitige Koppelspule (49) im Bereich der Schmalseite eines in den Einsteckkanal (13) einsteckbaren Abschnitts eines Schlüsselschafts (19) des Flachschlüssels (15) angeordnet ist.
Lock cylinder comprising a profile housing (1) at least one cylinder core (9) rotatably mounted in a bore (5) of the profile housing (1) with an insertion channel (13) for a flat key (15) extending in the direction of the cylinder axis (7) , several tumblers (21) mechanically controllable by the flat key (15),
a coupling coil (43) arranged in the region of an end face of the profile housing (1), which with a flat key (15) inserted into the insertion channel (13) with a key-side coupling coil (49) key-side electronic control circuit (47) for the inductive transmission of encryption information can be coupled,
and an electronic control circuit (39) connected to the locking cylinder-side coupling coil (43) and depending on the transmitted encryption information a control signal representing the locking state, in particular for controlling a locking device (33) which locks the cylinder core (9) in addition to the tumblers (21) ), in particular according to one of claims 1 to 7,
characterized in that the insertion channel (13) in the region of the end face of the profile housing (1) is radially open towards the profile housing (1) on at least one of its narrow sides in such a way that the locking cylinder-side coupling coil (43) is arranged in such a way that it is inserted of the flat key (15) into the insertion channel (13) allowing the cylinder core (9) to be aligned with the narrow side opening of the insertion channel (13) and that the key-side coupling coil (49) in the region of the narrow side of a section of a key shaft that can be inserted into the insertion channel (13) (19) of the flat key (15) is arranged.
Schließzylinder nach Anspruch 8, dadurch gekennzeichnet, daß die Schließzylinderseitige Koppelspule (43) an einer Schaltungsplatine (45) gehalten ist, die zugleich auch wenigstens einen Teil der elektronischen Komponenten der Schließzylinderseitigen Steuerschaltung (39) trägt.Lock cylinder according to claim 8, characterized in that the lock cylinder-side coupling coil (43) is held on a circuit board (45) which at the same time also carries at least some of the electronic components of the lock cylinder-side control circuit (39). Flachschlüssel für einen Schließzylinder gemäß Anspruch 8 oder 9, bei welchem die schlüsselseitige elektronische Steuerschaltung (47) in einem Griffteil (17) angeordnet ist und der Schlüsselschaft (19) im Bereich des Griffteils (17) eine Flachseitenverbreitung (69) aufweist, die eine vom Griffteil (17) wegweisende Einsteck-Anschlagfläche (71) bildet,
dadurch gekennzeichnet, daß die schlüsselseitige Koppelspule (49) an einer in Schaftlängsrichtung sich erstreckenden Schmalseite der Flachseitenverbreiterung (69) zwischen der Anschlagfläche (71) und dem Griffteil (17) angeordnet ist.
Flat key for a lock cylinder according to claim 8 or 9, wherein the key-side electronic control circuit (47) is arranged in a handle part (17) and the key shaft (19) in the area of the handle part (17) has a flat side extension (69) which forms a plug-in stop surface (71) pointing away from the handle part (17),
characterized in that the key-side coupling coil (49) is arranged on a narrow side of the flat side widening (69) extending in the longitudinal direction of the shaft between the stop surface (71) and the handle part (17).
Flachschlüssel nach Anspruch 10, dadurch gekennzeichnet, daß die schlüsselseitige Koppelspule (49) in einer Aussparung (77) der Flachseitenverbreiterung (69) angeordnet ist, von der zur Aufnahme von Anschlußleitungen der Koppelspule (49) eine vollständig im Inneren des Schlüsselschafts (19) verlaufende Bohrung (79) zum Inneren des Griffteils (17) geführt ist.Flat key according to claim 10, characterized in that the key-side coupling coil (49) is arranged in a recess (77) in the flat-side widening (69), one of which extends completely inside the key shaft (19) for receiving connecting lines of the coupling coil (49) Bore (79) is guided to the inside of the handle part (17).
EP93103323A 1992-03-06 1993-03-02 Electronic closing cylinder Expired - Lifetime EP0559158B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4207161A DE4207161A1 (en) 1992-03-06 1992-03-06 ELECTRONIC LOCKING CYLINDER
DE4207161 1992-03-06

Publications (2)

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EP0559158A1 true EP0559158A1 (en) 1993-09-08
EP0559158B1 EP0559158B1 (en) 1998-12-02

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EP93103323A Expired - Lifetime EP0559158B1 (en) 1992-03-06 1993-03-02 Electronic closing cylinder

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US (1) US5469727A (en)
EP (1) EP0559158B1 (en)
AT (1) ATE174094T1 (en)
CZ (1) CZ280855B6 (en)
DE (2) DE4207161A1 (en)
FI (1) FI108309B (en)
HU (1) HU218628B (en)
PL (1) PL170543B1 (en)

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Also Published As

Publication number Publication date
EP0559158B1 (en) 1998-12-02
PL297943A1 (en) 1993-09-20
PL170543B1 (en) 1996-12-31
DE59309169D1 (en) 1999-01-14
HU9300632D0 (en) 1993-06-28
FI108309B (en) 2001-12-31
FI930994A0 (en) 1993-03-05
HU218628B (en) 2000-10-28
FI930994A (en) 1993-09-07
US5469727A (en) 1995-11-28
HUT64128A (en) 1993-11-29
CZ33493A3 (en) 1994-01-19
CZ280855B6 (en) 1996-04-17
ATE174094T1 (en) 1998-12-15
DE4207161A1 (en) 1993-09-09

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