EP4311900A1 - Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique - Google Patents

Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique Download PDF

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Publication number
EP4311900A1
EP4311900A1 EP22187412.6A EP22187412A EP4311900A1 EP 4311900 A1 EP4311900 A1 EP 4311900A1 EP 22187412 A EP22187412 A EP 22187412A EP 4311900 A1 EP4311900 A1 EP 4311900A1
Authority
EP
European Patent Office
Prior art keywords
locking
cylinder
cylinder core
ribs
coupling
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.)
Pending
Application number
EP22187412.6A
Other languages
German (de)
English (en)
Inventor
Thomas Kittlitz
Daniel Knappik
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.)
BKS GmbH
Original Assignee
BKS GmbH
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 BKS GmbH filed Critical BKS GmbH
Priority to EP22187412.6A priority Critical patent/EP4311900A1/fr
Publication of EP4311900A1 publication Critical patent/EP4311900A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • E05B17/044—Clutches, disengageable couplings
    • E05B17/045—Clutches, disengageable couplings for keeping the rotor disconnected from the bolt actuating member, when being turned, e.g. forcefully, without the proper key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0638—Cylinder locks with electromagnetic control by disconnecting the rotor
    • E05B47/0642—Cylinder locks with electromagnetic control by disconnecting the rotor axially, i.e. with an axially disengaging coupling element
    • 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
    • E05B9/105—Coupling devices for the two halves of double cylinder locks, e.g. devices for coupling the rotor with the locking cam including disengagement means, e.g. opening from one side being still possible even if the key is inserted from the other side
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • 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
    • E05B9/041—Double cylinder locks
    • E05B9/042—Stators consisting of multiple parts being assembled together

Definitions

  • the invention relates to a (mechatronic) locking system with a mechatronic lock cylinder and an associated mechatronic key with the features of the preamble of claim 1.
  • Mechatronic locking systems are known from the prior art, for example DE 10 2009 005 322 A1 .
  • Such mechatronic locking systems usually have a mechatronic locking cylinder, which in turn has a cylinder housing, a rotatable cylinder core and a locking bit.
  • Such a lock cylinder can be closed by means of a mechatronic key, the key containing an electronic locking secret which can be read by means of a control of the locking cylinder. If the locking secret is correct, ie if the mechatronic key is authorized to close the locking cylinder, the locking cylinder can be operated using the key and the secured access can be opened.
  • the invention is based on the object of enabling separate locking of the outside of the locking cylinder and the inside of the locking cylinder in mechatronic locking cylinders with a danger function.
  • the invention solves this problem by a locking system with the features of claim 1.
  • the locking system is set up and/or intended for a door or a window.
  • the (mechatronic) locking system has a mechatronic locking cylinder and an associated mechatronic key Actuation of the lock cylinder.
  • Matching means that the key and locking cylinder match each other or, in other words, the locking cylinder can be operated or closed by the key (key has the appropriate locking secret).
  • the locking cylinder further has, for example, an external cylinder housing part, an external cylinder core, for example, rotatably mounted in the cylinder housing part, a lock bit and an electronic control device.
  • An electrically and/or electronically operating actuating device, a control piece, a locking element and a coupling element are arranged on and/or in the cylinder core.
  • the control piece can be moved between a locking position and an unlocking position by means of the adjusting device. In the locked position, the control piece blocks a displacement of the locking element from its locked position to its release position. In the unlocking position, the control piece allows the locking element to be moved into its release position.
  • the locking element moves from its locking position to its release position by rotating the cylinder core (using a key), so that the cylinder core can be rotated (freely).
  • the coupling element is coupled to the locking element in such a way that when the locking element is displaced into its release position, the coupling element is displaced into its coupling position.
  • the In its coupling position the coupling element couples the cylinder core and the lock bit to one another in a rotationally fixed manner. In other words, in the coupling position of the coupling element, the locking bit, the coupling element and the cylinder core are coupled to one another in a rotationally fixed manner.
  • the coupling element In its release position, however, the coupling element is decoupled from the locking bit (no rotation-proof coupling of the locking bit and coupling element), so that the locking bit can be freely rotated relative to the coupling element and/or the cylinder core.
  • the coupling element When the coupling element is in the release position (locking bit not coupled and freely rotatable), the locking element is in its locking position.
  • the cylinder core cannot therefore be (freely) rotated relative to the cylinder housing part (locking element in the locked position prevents rotation of the cylinder core).
  • This configuration has the advantage that the cylinder core is locked or fixed relative to the cylinder housing part by the locking element in the unauthorized state (key not inserted or not sufficiently inserted into the key channel or key inserted without authorization). It is therefore not possible to manipulate the locking cylinder by rotating the cylinder core. A centrifugal brake is not required and can be omitted.
  • the locking bit Due to the design of the locking cylinder with the coupling element, the locking bit remains in the unauthorized state (locking element in the locked position and coupling element in release position) can be rotated freely. This means that even if the outside cylinder core is locked, the locking bit can be operated from the inside (secured side), for example by an inside handle or by an inside cylinder housing part with a cylinder core and key. A separate hazard function clutch is not required and can be omitted.
  • the actuating device can be electrically and/or electronically connected to the control device, the control device being set up in such a way that when the key is authorized (the key carries the correct locking secret, for example in a transponder of the key), the actuating device (for example . by issuing a signal or release signal) in such a way that the control piece is moved, in particular from its locked position, into its unlocked position. This allows the locking element to be moved from its locking position to its release position.
  • the cylinder core can be turned using the inserted (authorized) key.
  • the control device is preferably further set up in such a way that if the key is not authorized (the key does not have the correct locking secret), the actuating device is not activated by the control device, so that the control piece remains in the locked position.
  • the actuating device can be designed as an electric motor, on its motor shaft the control piece is preferably secured in a rotationally fixed manner.
  • the control piece can be attached to the free end of the motor shaft.
  • the control piece can have sections with different heights (seen along the motor shaft), in particular a (higher or comparatively high) locking section and a (lower or comparatively low) release section.
  • the release section allows the locking element to be moved into its release position.
  • the locking section blocks the locking element from being moved into its release position.
  • the control piece can have a round cross section and the locking section and the release section can each form a circular sector ("pie piece") of the control piece.
  • the locking element can expediently be displaceably mounted on or in the cylinder core and biased in the direction of the locking position, in particular by means of a spring, for example a compression spring. This promotes a compact and stable design, with the locking element automatically moving into the locking position.
  • the direction of displacement of the locking element is in particular orthogonal to the central longitudinal axis of the cylinder core or to Axis of rotation of the cylinder core is oriented in the cylinder housing part.
  • the spring preferably designed as a compression spring
  • the spring can in particular be arranged on or in the cylinder core in such a way that the spring rests on the locking element at one end and on the coupling element at the other end.
  • the locking element is biased into the locking position by the spring.
  • the coupling element is biased into the coupling position by the spring.
  • the locking element and the coupling element can be coupled to one another by means of the spring, preferably designed as a compression spring.
  • the locking element can have a, preferably convexly rounded, projection with which the locking element, in its locking position, engages in a groove formed in the core channel (inner peripheral surface) of the cylinder housing part and corresponding to the projection, preferably concavely rounded.
  • This allows a structurally simple and stable locking effect of the locking element relative to the cylinder housing part.
  • the locking element can be moved into the cylinder core or towards the central longitudinal axis of the cylinder core when the control piece is in the unlocking position and the cylinder core is attempted to be rotated using the inserted key (pushing the locking element into the cylinder core as a result of the convex sliding rounded projection on the concave rounded groove).
  • the groove can be in one of the non-cylindrical parts of the cylinder housing part facing section of the core channel or the inner peripheral surface.
  • the locking element can have a plurality of raised pin sections that are aligned parallel to one another, via which the locking element is slidably guided in recesses in the cylinder core that correspond to the pin sections.
  • This contributes to a structurally simple and stable guidance of the locking element in the cylinder core.
  • the pin sections can be oriented parallel to one another.
  • the pin sections facing the locking bit can have a greater length than the pin sections facing away from the locking bit.
  • the locking element can have a, in particular plate-shaped, base section.
  • the pin sections can protrude from the base section on one side, in particular on a first flat side, and the projection can protrude from the base section on a side facing away from it (opposite side), in particular on a (second) flat side facing away from the first flat side.
  • a pocket can expediently be formed on the end of the cylinder core facing the locking bit, in which the coupling element is guided displaceably along a displacement direction.
  • the coupling element is in particular such Cylinder core guided so that the coupling element is rotationally fixed relative to the cylinder core (displacement of the coupling element along the displacement direction possible, but no rotation).
  • the side walls of the pocket and the coupling element which are aligned parallel to the direction of displacement, can be oriented parallel to one another and the pocket and coupling element can be coordinated with one another in such a way that the surfaces of these walls slide on one another when the coupling element is displaced.
  • the displacement direction is preferably oriented orthogonally to the central longitudinal axis of the cylinder core in the cylinder housing part and/or oriented parallel to the displacement direction of the locking element (coupling element and locking element can be displaced parallel to one another).
  • the coupling element can have one or more raised and curved, in particular arcuate, ribs for coupling to the locking bar on a side facing the locking bar, with one or more counter ribs corresponding to the ribs being formed on or in the locking bar extend arcuately or circularly on an end face facing the cylinder core and are interrupted by a recess (clearance) which preferably extends radially outwards, the ribs being displaceable in the recess.
  • This contributes to a particularly compact and stable coupling of the coupling element and locking bit. For switching between a clutch position and a release position only a slight displacement of the coupling element is required.
  • the coupling element can have a base section from which the ribs (in the assembled state) protrude towards the locking bit.
  • the ribs are formed in particular on a flat side (front side) of the base section.
  • the base section can be delimited on three sides of the body by flat or flat sections, with adjacent sections each being oriented orthogonally to one another.
  • a (fourth) body side facing away from the central longitudinal axis of the cylinder core in the assembled state is designed to correspond to the core channel or the core bore of the cylinder housing part, preferably convexly rounded.
  • the ribs can each have an identical contour.
  • the ribs can each extend parallel to one another and/or be designed to be spaced apart from one another.
  • the width of the ribs can be matched to the width of the recess on or in the lock bit.
  • the ribs and the counter-ribs can be aligned with one another in such a way that when the coupling element is in its coupling position, the ribs and counter-ribs rest against one another (in the circumferential direction) (ribs continue the contour of the counter-ribs), so that the locking bit is non-rotatable with the Coupling element and / or the cylinder core is coupled
  • the ribs and the counter-ribs can be aligned with one another in such a way that when the coupling element is outside the coupling position (freewheel position), the ribs and the counter-ribs are arranged offset from one another, so that the locking bit is free relative to the coupling element and/or to the cylinder core is rotatable (ribs run in spaces between counter ribs).
  • the lock cylinder can have a further cylinder housing part, for example on the inside, and a cylinder core, for example on the inside, which is rotatably mounted in the further cylinder housing part.
  • a locking cylinder can thus be provided with two cylinder housing parts and cylinder cores each rotatably arranged therein (double cylinder).
  • the further cylinder core can be a cylinder core that can be actuated by means of a mechanical or mechatronic key or a cylinder core that can be actuated by means of a knob (knob cylinder or knob cylinder part).
  • the locking cylinder can optionally be a built locking cylinder which has a (first) cylinder housing part with a cylinder core, a further (second) cylinder housing part with a cylinder core and a connecting element which connects the two cylinder housings to one another, for example by screwing or pinning.
  • the connecting element may have a central base portion and two opposite sides thereof have projecting engagement sections, each of which engages in a corresponding groove section in the non-cylindrical parts of the cylinder housing parts.
  • the locking cylinder can be a profile cylinder, in particular a profile cylinder according to DIN 18252 / EN 1303.
  • At least the (first or outside) cylinder core has a locking channel into which the mechatronic key can be inserted. Drill protection can optionally be provided at the entrance to the locking channel.
  • the mechatronic key can have a transponder on which an electronic locking secret is stored.
  • the key can also have a network-independent energy storage device, for example a battery.
  • the mechatronic locking cylinder has an electronic control device.
  • the electronic control device is set up and/or intended to read the electronic locking secret from the mechatronic key. This can be done directly by means of the electronic control device or by means of corresponding sensors that are electrically and/or electronically connected to the control device or form a component of the control device.
  • FIG. 1 shows a mechatronic locking system, which is designated overall by the reference number 100.
  • the locking system 100 has a mechatronic lock cylinder 10 and an associated mechatronic key 12.
  • the lock cylinder 10 is designed as a (built) double cylinder and has a (first) outside cylinder housing part 14 (unsecured side) and a (second) inside cylinder housing part 16 (secured side).
  • the outside cylinder housing part 14 can be closed using the key 12.
  • the inside cylinder housing part 16 can be closed using the key 17.
  • the cylinder housing part 16 and the key 17 can be designed in a mechanical or alternatively in a mechatronic design.
  • the inside cylinder housing part 16 can be designed as a (mechanical) knob cylinder, as explained above.
  • a cylinder core 22 is rotatably mounted in the outside cylinder housing part 14.
  • a cylinder core 21 is rotatably mounted in the inside cylinder housing part 16.
  • the cylinder housing parts 14, 16 are coupled to one another in the example via a connecting element 18.
  • the connecting element 18 has a central base section 18' and two engagement sections 18", 18" projecting therefrom, which each engage in a corresponding groove section 14', 16' of the cylinder housing parts 14, 16.
  • the locking cylinder 10 also has a drill protection 20, the cylinder core 22, an electronic control device 23 (cf. Fig.3 u. 5), an electrically and/or electronically operating actuating device 24, a control piece 26 (cf. Figure 3 u. 5), a locking element 28, a coupling element 30, a compression spring 32 and a locking bit 34.
  • rings 36 can be provided which serve as guide and/or sealing rings.
  • the cylinder core 22 is rotatably mounted in the cylinder housing part 14, specifically in a corresponding core channel 14 '' (cf. Fig. 2 and 3 ).
  • the adjusting device 24, the control piece 26, the locking element 28 and the coupling element 30 are arranged on or in the cylinder core 22.
  • the adjusting device 24 is designed as an electric motor, with the control piece 26 being secured in a rotationally fixed manner on the motor shaft 24 '.
  • the control device 23 is electrically and/or electronically connected to the adjusting device 24 (cf. Fig. 3 and 5 ).
  • the control piece 26 can be switched between a locking position by means of the adjusting device 24 (cf. Fig.3 ) and one Unlocking position (cf. Fig.5 ) be relocated.
  • the control piece 26 can be pivoted through a defined angle by controlling the adjusting device 24.
  • the locked position the control piece 26 blocks a displacement of the locking element 28 from its locked position (cf. Fig.3 ) into its release position.
  • the control piece 26 allows the locking element 28 to be moved into its release position (cf. Fig.5 ).
  • the control piece 26 can have a locking section and a release section, as explained above.
  • the locking element 28 is displaceably mounted in the cylinder core 22 and moved in the direction of its locking position by means of the compression spring 32 (cf. Fig. 3 and 4a ) biased.
  • the displacement direction V of the locking element 28 is oriented orthogonally to the central longitudinal axis 22 'of the cylinder core 22 (cf. Fig.2 ).
  • the locking element 28 has a plate-shaped base section 28 'in the example (cf. Fig.2 ). Protruding from this on a flat side is a convexly rounded projection 28" in the example, with which the locking element 28, in its locking position, engages in a groove 14" formed in the core channel 14" of the cylinder housing part 14, which in the present case is concave.
  • a convexly rounded projection 28" in the example, with which the locking element 28, in its locking position, engages in a groove 14" formed in the core channel 14" of the cylinder housing part 14, which in the present case is concave.
  • a pocket 22′′′ is formed, in which the coupling element 30 is guided displaceably along the displacement direction V, but is rotationally fixed relative to the cylinder core 22.
  • the direction of displacement of the coupling element 30 is oriented orthogonally to the central longitudinal axis 22 'of the cylinder core 22.
  • the displacement direction of the coupling element 30 is oriented parallel to the displacement direction of the locking element 28, so that the locking element 28 and the coupling element 30 are guided in the cylinder core 22 so that they can be displaced parallel to one another.
  • the coupling element 30 has a base section 30 ', which is delimited on three sides of the body by flat surfaces.
  • a fourth body side 30" (in Figure 2 oriented downwards) is rounded.
  • the coupling element 30 is adapted to the outer contour of the cylinder core 22.
  • the ribs 30" and the counter ribs 34' are aligned with one another in such a way that when the coupling element 30 is in its coupling position (cf. Fig.6b ), the ribs 30" and counter-ribs 34' rest against one another in the circumferential direction (ribs 30" continue the contour of the counter-ribs 34').
  • the locking bit 34 is then coupled in a rotationally fixed manner to the coupling element 30 and/or the cylinder core 22 (cf. Fig.5 and 6b ).
  • the ribs 30" and the counter ribs 34' are arranged offset from one another in such a way that the locking bit 34 can be freely rotated relative to the coupling element 30 and/or to the cylinder core 22 (cf. Fig.3 and 4b ).
  • the ribs 30" can then run in spaces between the counter ribs 34'.
  • the locking system 100 works as follows: If the mechatronic key 12 is inserted into the key channel of the cylinder core 22, the electronic control device 23 checks whether the key 12 is authorized, i.e. whether it has the correct locking secret.
  • the actuating device 24 is not activated by means of the control device 23.
  • the control piece 26 therefore remains in the locked position. If you try to turn the cylinder core 22 using the key 12, the locking element 28 remains in the groove 14′′′ of the cylinder housing part 14. The locking element 28 cannot dive in the direction of the control piece 26 or into the cylinder core 22, since the control piece 26 blocks this ( see. Fig. 3 and 4a ). The cylinder core 22 therefore cannot be rotated.
  • the ribs 30" of the coupling element 30 can thus run in the spaces or the free paths between the counter ribs 34' of the locking bit 34. There is therefore no coupling.
  • the locking bit 34 can therefore be free relative to the coupling element 30 and/or to the cylinder core 22 be rotated.
  • the actuating device 24 is activated by means of the control device 23, whereby the control piece 26 is moved into the unlocking position (cf. Fig.5 ).
  • the control piece 26 is rotated by the motor shaft 24 'by the motor shaft 24 'by means of the adjusting device 24, for example by an angle of 90 °.
  • the locking element 28 can be pushed out of the groove 14′′′ of the cylinder housing part 14 (cf. Fig.6a ).
  • the locking element 28 dips in the direction of the control piece 26 or into the cylinder core 22 (release position).
  • the cylinder core 22 can now rotate freely.
  • the coupling element 30 assumes its coupling position, with the ribs 30′′′ and the counter-ribs 34′ being aligned with one another or resting against one another (ribs 30′′′ continue the contour of the counter-ribs 34′).
  • the locking bit 34 is non-rotatable with the
  • Coupling element 30 and / or the cylinder core 22 coupled.
  • the locking bit 34 rotates accordingly.
  • the proposed embodiment has the advantage that the locking bit 34 is only coupled in a rotationally fixed manner to the (outside) cylinder core 22 when the cylinder core 22 is actuated or rotated by an authorized key 12. If the cylinder core 22 is not rotated or the control piece 26 is in the locked position, the locking bit 34 remains decoupled. As a result, the locking bit 34 can be accessed from the inside, for example by an (inside) knob cylinder or an (inside) locking cylinder, the knob cylinder or the (inside) locking cylinder being coupled in a rotationally fixed manner to the locking bit 34. This allows the locking cylinder 10 to be actuated from the inside, for example as part of a danger function, even if the (outside) cylinder core 22 is locked.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
EP22187412.6A 2022-07-28 2022-07-28 Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique Pending EP4311900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22187412.6A EP4311900A1 (fr) 2022-07-28 2022-07-28 Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22187412.6A EP4311900A1 (fr) 2022-07-28 2022-07-28 Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique

Publications (1)

Publication Number Publication Date
EP4311900A1 true EP4311900A1 (fr) 2024-01-31

Family

ID=82781227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22187412.6A Pending EP4311900A1 (fr) 2022-07-28 2022-07-28 Système de fermeture pourvu de cylindre de fermeture mécatronique et de clé mécatronique

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EP (1) EP4311900A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303849A1 (fr) * 1987-08-19 1989-02-22 BKS GmbH Cylindre pour fermeture avec élément de fermeture actionné électromagnétiquement
WO2003100199A1 (fr) * 2002-05-27 2003-12-04 Mul-T-Lock Technologies Ltd. Verrou
DE102009005322A1 (de) 2009-01-16 2010-07-22 Martin Lehmann Gmbh & Co. Kg Elektronische Schließeinheit
US8544302B2 (en) * 2010-01-25 2013-10-01 Knock N'lock Ltd. Door cylinder lock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303849A1 (fr) * 1987-08-19 1989-02-22 BKS GmbH Cylindre pour fermeture avec élément de fermeture actionné électromagnétiquement
WO2003100199A1 (fr) * 2002-05-27 2003-12-04 Mul-T-Lock Technologies Ltd. Verrou
DE102009005322A1 (de) 2009-01-16 2010-07-22 Martin Lehmann Gmbh & Co. Kg Elektronische Schließeinheit
US8544302B2 (en) * 2010-01-25 2013-10-01 Knock N'lock Ltd. Door cylinder lock

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