EP2800069B1 - Schließzylinder - Google Patents

Schließzylinder Download PDF

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Publication number
EP2800069B1
EP2800069B1 EP14164938.4A EP14164938A EP2800069B1 EP 2800069 B1 EP2800069 B1 EP 2800069B1 EP 14164938 A EP14164938 A EP 14164938A EP 2800069 B1 EP2800069 B1 EP 2800069B1
Authority
EP
European Patent Office
Prior art keywords
lock cylinder
signal
signal conductor
coupling
conductor
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.)
Active
Application number
EP14164938.4A
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German (de)
English (en)
French (fr)
Other versions
EP2800069A1 (de
Inventor
Reinhold Braam
Daniel Knappik
Christoph Lelie
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
Publication of EP2800069A1 publication Critical patent/EP2800069A1/de
Application granted granted Critical
Publication of EP2800069B1 publication Critical patent/EP2800069B1/de
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Anticipated expiration legal-status Critical

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00944—Details of construction or manufacture
    • 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
    • E05B47/0615—Cylinder locks with electromagnetic control operated by handles, e.g. by knobs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/045—Modular casings for adjusting the length of cylinder locks

Definitions

  • the invention relates to a lock cylinder with a signal transmission device for transmitting electrical signals within the lock cylinder.
  • Such lock cylinders are already known.
  • a wire connection is used to connect electronic components of the lock cylinder with each other.
  • the conventional wire connection requires a fixed wiring with the electronic components to be connected, which requires a complicated assembly and brings insufficient flexibility of the signal transmission device with respect to various target systems.
  • the overlap according to the invention of the end sections of the two signal conductors advantageously results in the formation of a coupling capacitance between the two signal conductors of the signal transmission device.
  • the first and / or the second signal conductor may be conventional electrical conductors, for example metallically formed conductors.
  • the overlapping area in which the mutually facing end portions of the signal conductors overlap may be formed by a clearance area (air, vacuum, and the like). Alternatively, it is also possible to fill a gap between the overlapping end sections of the signal conductors with a dielectric.
  • electrical signals are both conducted signals transmitted, such as electricity, Voltage etc. understood as well as wirelessly transferable signals, in particular electrical and / or magnetic fields or waves.
  • a galvanic contact between the signal conductors in particular in the overlap region exists.
  • overlapping can also be understood to mean those spatial configurations of the end sections of the signal conductors to one another in which a coupling capacitance is formed between the end sections, but not a direct mechanical or galvanic contact.
  • signal transmission takes place in the region of the signal conductors by line conduction (el.current and / or voltage), and in the overlapping region by non-conduction, ie by means of electric and / or magnetic fields.
  • the end sections of the signal conductors touch each other at least in certain areas. This can be expedient for electrically insulated end sections, for example, in order to establish defined coupling capacities. Alternatively or additionally, a galvanic contact of the end sections of the signal conductors is conceivable, so that there is a direct galvanic connection between the first signal conductor and the second signal conductor.
  • inductive components can also be integrated into at least one signal conductor, in particular in its end section, for the signals to be transmitted via the signal transmission device, whereby the construction of more complex filters for the signals to be transmitted is possible.
  • the signal transmission device of the lock cylinder according to the invention can be provided for transmitting signals of a so-called near field communication system of the lock cylinder from a first area of the lock cylinder into a second area of the lock cylinder.
  • the signal transmission device of the lock cylinder according to the invention in addition to its pure signal transmission function by the capacitive coupling of the end portions is simultaneously designed so that there is a bandpass characteristic for the signals to be transmitted, whereby in particular unwanted signals from the low-pass range or high-frequency interference signals are not transmitted via the signal transmission device.
  • At least one signal conductor has a substantially sleeve-shaped basic shape at least in sections. This allows a particularly efficient integration into existing lock cylinders.
  • a sleeve-shaped or tubular signal conductor can be arranged coaxially to a shaft of the lock cylinder, which transmits a torque from an actuating device of the lock cylinder to a lock bit or the like.
  • both signal conductors are formed sleeve-shaped, so that the above-mentioned advantage in terms of concentric integration in both signal conductors is given.
  • the isseattermit outer diameter of the two sleeve-shaped signal conductors can be advantageously chosen such that they are preferably inserted axially into one another.
  • the first signal conductor having a first inner diameter which is larger than a first outer diameter of the second signal conductor.
  • the coupling capacitance according to the invention in the end sections of the signal conductors is advantageously defined by a jacket surface in the end section of the inner signal conductor and an inner face opposite thereto in the end section of the radially outer signal conductor.
  • At least one signal conductor has a cylindrical basic shape, in particular also a hollow cylindrical basic shape.
  • a lateral surface and / or an inner surface of the at least one signal conductor has at least partially an electrically non-conductive layer, whereby advantageously an electrical insulation of the end sections of the signal conductors can be realized against each other, so that a galvanic contacting is avoided and a purely capacitive signal transmission between the signal conductors is given.
  • An insulating layer can advantageously also be used to electrically isolate one or both signal conductors from components of the lock cylinder, in particular an electrically conductive base body of the lock cylinder.
  • an optionally existing insulating layer which separates the end portions of the signal conductors from each other or electrically isolated from each other, to choose as thin as possible in order to achieve a large value for the coupling capacitance between the end portions of the signal conductors.
  • the coupling capacitance between one of the signal conductors or both signal conductors and the main body of the lock cylinder is selected to be as low as possible.
  • the insulating layer thickness compared to the lock cylinder or its base body be at least about ten times as large as an insulating layer thickness, which causes a galvanic separation of the end portions of the signal conductors from each other.
  • At least one signal conductor is at least partially formed as a wire, in particular insulated wire, which allows a particularly simple and inexpensive construction of the lock cylinder according to the invention.
  • both signal conductors may be formed as wire, in particular insulated wire, and the signal transmission according to the invention in the end portion may be effected for example by a capacitive coupling between the overlapping end portions of the wires.
  • An increase in the coupling capacity is advantageously achieved in that a first signal conductor is designed as a wire and that a second signal conductor is sleeve-shaped, resulting in a larger coupling surface and thus greater coupling capacity between the end portions.
  • the wire is advantageously inserted with its end portion in the end portion of the sleeve-shaped signal conductor.
  • the end sections of the signal conductors are arranged at least partially substantially coaxially to each other, which on the one hand results in a particularly small-sized configuration and on the other hand the largest possible coupling capacity is realized.
  • the conception according to the invention in which the end sections of the signal conductors overlap by a predeterminable length, is very advantageous because the signal conductors generally do not have to be mechanically connected to one another, so that corresponding degrees of freedom are present during assembly of the lock cylinder according to the invention.
  • the lengths of the signal conductors which overlap one another in their installed state in the lock cylinder can also be selected such that they achieve a first type of lock cylinder having a first length, for example an overlap length, which is significantly greater than the predefinable length required for realizing the invention minimum required coupling capacity is.
  • the same components of the signal transmission device can advantageously also be used in a lock cylinder of a second type which, for example, has a greater length dimension, whereby it is still ensured, with appropriate mounting of the signal transmission device on the second lock cylinder, that the minimally required overlap length of the end sections is ensured guaranteed.
  • At least one of the signal conductors has a modular construction of at least two longitudinal sections that can be detachably connected to one another.
  • the tubular base body is formed from an electrically conductive material, in particular metal.
  • the main body may be surrounded radially on the outside by an electrically non-conductive insulating layer, which causes an electrical insulation against the lock cylinder.
  • the insulating layer which likewise has hollow cylindrical basic geometry, has a greater axial length than the metallic base body, so that in the end region of the signal conductor the insulating body or the insulating layer projects axially beyond the metallic base body.
  • a coupling capacitance between the signal conductors has a value of about 3 pF (picofarad) to about 12 pF, in particular from about 5 pF to about 7 pF.
  • a coupling capacitance between at least one of the signal conductors and a housing body of the lock cylinder has a value of less than or equal to approximately 1 pF. This advantageously ensures that the parasitic coupling capacitance to the housing of the lock cylinder does not impair the capacitive coupling of the signal conductors in the overlapping areas.
  • a coupling electrode is provided for capacitive coupling to at least one signal conductor.
  • the coupling electrode can be galvanically or capacitively connected to other electronic components of the lock cylinder such as a control unit or an electronic control system or an external antenna, which is designed for receiving or transmitting electrical signals or radio signals.
  • the coupling electrode advantageously allows a coupling of the relevant signals in the signal transmission device of the lock cylinder according to the invention, in order to transfer them to another area of the lock cylinder.
  • At least one signal conductor has, at least in regions, a coupling surface for a capacitive coupling.
  • This coupling surface may advantageously be e.g. interact with the coupling electrode described above for capacitive coupling to the at least one signal conductor.
  • FIG. 1 schematically shows a side view of a lock cylinder 100 according to an embodiment of the invention.
  • the lock cylinder 100 which is designed here as a double cylinder, has an eg metallic base body 100 '.
  • the other mechanical components of the lock cylinder 100 are not in for clarity FIG. 1 displayed. Only a cam of the lock cylinder 100 is indicated schematically.
  • the lock cylinder 100 can be integrated in a manner known per se into a closing device (not shown) which is designed for installation in a door leaf.
  • a closing device not shown
  • an in FIG. 1 left half of the lock cylinder 100 for example, an outdoor area A of the door (not shown) are assigned, while the in FIG. 1 Right part shown of the lock cylinder 100 an inner area I is assigned.
  • a signal transmission device 110 is provided according to the invention.
  • the signal transmission device 110 extends almost over the entire length of the lock cylinder 100, so that in particular a signal transmission from the outside area A into the inside area I is made possible.
  • an electronic control unit of a lock cylinder 100 having locking device protected in the inner region I associated part of the lock cylinder 100, ie in FIG. 1 right while at the same time a signal transmission of electrical signals from the outer area A in the inner area I via the signal transmission device 110 according to the invention is made possible.
  • the signal transmission device 110 has a first signal conductor 112 and a second signal conductor 114.
  • the signal conductors 112, 114 are arranged relative to one another such that mutually facing end sections 112a, 114a of the signal conductors 112, 114 overlap by a predeterminable length L.
  • the signal transmission device 110 thus enables the transmission of electrical signals via the signal conductors 112, 114 containing electrically conductive or electrically conductive components, and the signal transmission between the signal conductors 112, 114 takes place in their end sections 112a, 114a in a preferred embodiment by means of a capacitive coupling, which is made possible by the overlap area L.
  • a galvanic connection of the signal conductors 112, 114 with each other, in particular in the overlap region L may be provided.
  • the capacitive coupling in the overlapping region L offers the advantage that degrees of freedom with regard to the spatial arrangement of the end sections 112a, 114a are given to one another and thus simplified assembly is possible.
  • a somewhat greater constructive effort is usually required to ensure the continuous galvanic contacting of the components 112, 114 with each other.
  • FIG. 2 schematically shows a cross section of a signal conductor 1200, as he also for example in the lock cylinder 100 according to FIG. 1 can be used, for example, instead of the signal conductor 112 or 114 according to FIG. 1 .
  • the signal conductor 1200 according to FIG. 2 has a substantially tubular configuration with a metallic tube 1212. Radially outside the tube 1212 is an electrically insulating layer 1214, which also has a sleeve-shaped geometry, arranged, which ensures an electrical insulation of the tube 1212 relative to the lock cylinder 100.
  • the layer thickness of the insulating layer 1214 is preferably chosen to be relatively large, so that the parasitic coupling capacitance between the pipe conductor 1212 and the main body 100 'of the lock cylinder 100 is as small as possible.
  • a first longitudinal section 1210 of the signal conductor 1200 is formed by the components 1212, 1214.
  • a second longitudinal section 1220 is also off FIG. 2 seen.
  • the second longitudinal section 1220 has a similar construction with a metallic tube 1222 and a radially outer insulating layer 1224.
  • the inner and outer diameters of the two longitudinal sections 1210, 1220 are identical in the present case.
  • first longitudinal section 1210 2 to the left, according to the dashed arrows) in the first longitudinal section 1210, whereby the length of the signal conductor 1200 from the original length 11 of the first signal conductor 1210 can be increased to the new one Total length 11 + 12.
  • another longitudinal section 1230 with a similar configuration, but of different length, may be provided, whereby many different overall lengths for the signal conductor 1200 can be realized.
  • a particularly simple and efficient adaptation of the signal conductor 1200 to different target systems (lock cylinder 100, eg half cylinder, double cylinder, each having a different cylinder length) is advantageously provided.
  • a screw connection and / or an adhesive connection and the like may also be considered, in order to connect the different longitudinal sections 1210, 1220, 1230 to one another or to fix them together in their connection position.
  • the projections of the components 1212, 1214, 1222, 1224 in the axial direction are coordinated so that when nesting the two longitudinal sections 1210, 1220, a galvanic connection between the tubes 1212, 1222 can be realized.
  • This can be done on the one hand by the corresponding end faces of the pipe sections 1212, 1222.
  • the inner surface of the component 1214 may, for example, also have a metallization layer, which acts as an electrical contact mediator between the components 1212, 1222.
  • the layer thickness of the insulating layer 1214 can also be chosen so large that a resulting insulating layer element mechanical Connection of two components 1212, 1222 allows each other, as it acts as a "connecting sleeve".
  • the insulating layer element can be significantly lower than that in FIG FIG. 2 have indicated length 12.
  • the medium surrounding the components 1212, 1222 acts as a dielectric for the parasitic capacitance between the 1212, 1222 on the one hand and the surrounding metal body of the lock cylinder, and material for the insulating body 1214 can be saved.
  • FIG. 3 shows a further embodiment of a signal conductor 1200 '.
  • the signal conductor 1200 ' has a substantially tubular configuration with a radially inner electrically conductive tube and a radially outer plastic tube, which represents the insulating layer to the lock cylinder 100 out.
  • the second signal conductor 1400 according to FIG. 3 is presently designed as insulated wire, resulting in a particularly cost-effective configuration.
  • the signal conductors 1200 ', 1400 are arranged according to the principle of the invention so relative to each other that in turn results in an overlap area L, which allows a capacitive coupling between the components 1200', 1400 and thus an electrical signal transmission.
  • the electrical resistance of the metallic conductor of the first signal conductor 1200 ' in series with a capacitance representing the coupling capacitance between the components 1200', 1400 in the overlap area L, in series with another ohmic resistor representing the electrical resistance of the second signal conductor 1400 formed as a wire.
  • the antenna 1402 enables a radiation or decoupling of the electrical signals transmitted via the signal transmission device 1200 ', 1400 to further components (not shown).
  • This can be, for example, an electrical control unit, a transponder for actuating a locking device 100 contained closing device and the like.
  • the coupling electrode 1402 may, for example, also be arranged in the lock cylinder 100 and is preferably opposite the base body 100 '(FIG. Fig. 1 ) of the lock cylinder 100 electrically isolated.
  • the coupling electrode 1402 may also be arranged in an actuating element (hand knob) in a lock cylinder 100 designed as a "knob cylinder”.
  • the configuration may be according to FIG. 3 for example, on the inside I of the arrangement FIG. 1 be realized.
  • FIG. 4 shows a further embodiment. Shown again is a first signal conductor 1200 ", which in Has substantially tubular geometry.
  • the tubular, radially inwardly disposed, metallic conductor is in the present case, however, by an end face region 1212 a at its in FIG. 4 completed left end.
  • the end face region 1212a forms as it were a coupling surface, which allows a capacitive coupling to a further coupling electrode 150.
  • the coupling electrode 150 is preferably electrically connected via an electrical line to an electrical control device 160, which, for example, in the lock cylinder 100 (FIG. FIG. 1 ), but also in an externally arranged component (for example, actuator, knob cylinder) may be provided.
  • the capacitive coupling between the components 1212a, 150 allows free mobility, in particular rotation, of the components 1212a, 150 relative to each other.
  • the configuration may be according to FIG. 4 for example, on the outside A of the arrangement according to FIG. 1 be realized.
  • FIG. 5 shows a further embodiment of the invention, in the subject matter to the above-described embodiments not primarily a capacitive coupling between the two signal conductors of the signal transmission device 110, but a galvanic coupling.
  • the first signal conductor 1200 'to the FIG. 3 comparable configuration while the second signal conductor 1400 ', for example, a rod-shaped first portion and an example bauschförmig formed second portion 1404 which is coaxial with and disposed within an end portion of the first signal conductor 1200'.
  • This is a galvanic connection between the bauschförmigen section 1404 and the first signal conductor 1200 'or given its metallic conductor.
  • the bauschförmige section 1404 may be formed according to a preferred embodiment, for example, as a metal mesh, which ensures safe pressing of at least some fibers of the metal braid to the inner surface of the sleeve-shaped conductor of the first signal conductor 1200 'due to its elasticity acting also in the radial direction.
  • the second signal conductor optionally has a coupling electrode 1402 for coupling the signal to a further unit, which may be arranged in the lock cylinder 100 or else outside the lock cylinder 100.
  • the bulge-shaped portion 1404 may also be formed according to the principle of a stuffing box.
  • FIG. 6 shows an overlap area L between signal conductors 1200 ', 1400 "according to another embodiment
  • both signal conductors 1200', 1400" are substantially sleeve-shaped and coaxially into each other.
  • the outer diameter of the second signal conductor 1400 " is tuned to the inner diameter of the metallic conductor of the first signal conductor 1200 'such that the component 1400" is securely guided axially in the component 1200'.
  • PTFE polytetrafluoroethylene
  • FIG. 7 shows a side view of another embodiment of the invention.
  • the first signal conductor 112 of the signal transmission device 110 is connected to a first electrical or electronic component 170, which may be, for example, an antenna device or also an electronic control device or the like.
  • the second signal conductor 114 is analogously connected to a second electronic component 180.
  • the signal transmission device 110 advantageously makes it possible to transmit electrical signals from the unit 170 to the unit 180 and vice versa.
  • a transponder 200 which wirelessly transmits control signals to the unit 170, for example in order to control a locking device which has the lock cylinder 100.
  • control signals may be received by the unit 170 and, for example, coupled directly into the first signal conductor 112 of the signal transmission device 110.
  • a configuration according to FIG. 4 be used, that is a galvanically connected to the unit 170 coupling electrode 150 (FIG. FIG. 4 ), which in turn the received signal capacitively into an end-face end region of the first signal conductor 1200 'or 112 (FIG. FIG. 7 ) can couple.
  • the signal transmission device 110 forwards the signal thus received to the further unit 180, which can, for example, process it or in turn forward it.
  • the unit 180 can be designed, for example, to actuate an actuator (not shown, for example electromagnet) for disengaging and / or engaging an actuating element of the lock cylinder 100 with the locking bit in response to the signal received by the unit 170.
  • the invention advantageously makes possible an efficient electrical signal transmission within a lock cylinder 100 having predominantly electrically conductive or metallic components. Particularly preferably, electrical signals can be transmitted virtually over the entire length of the lock cylinder 100.
  • a particularly small-sized configuration results when at least parts 112, 114 of the signal transmission device 110 according to the invention are arranged coaxially to existing shafts, sleeves and the like of the lock cylinder 100.
  • a shaft (not shown) which transmits a torque to the cam (not shown) of the lock cylinder 100 can be designed as a hollow shaft, and the signal transmission device 110 according to the invention is arranged radially inside this hollow shaft.
  • the overlapping region L according to the invention does not necessarily require a mechanical connection, in particular a fixed mechanical connection, of the components 112, 114 to one another, the corresponding ones can be used
  • End portions 112a, 114a ( FIG. 1 ), which are provided for producing the capacitive coupling in the overlap region L, are arranged in the simplest manner "next to one another", whereby the capacitive coupling according to the invention already sets.
  • a coaxial arrangement in relation to one another is particularly advantageous, since it is physically small with a high coupling capacity.
  • a free axial displaceability of the components 112, 114 is advantageously given to each other such that different lengths of the lock cylinder 100 can be compensated or no fixed mechanical connection or solid electrical connection as in the conventional hard-wired signal transmission devices is required, which the assembly simplified.
  • the coupling electrode 1402 according to FIG. 3 or 150 according to FIG. 4 be advantageously realized as a metallic disc or as a disk consisting of a non-electrically conductive substrate with an applied metallization.
  • the coupling surface or the overlap region L is preferably to be selected in terms of its length so that an electrical coupling capacitance between the components 112, 114 is as large as possible to ensure a secure signal transmission.
  • a coupling capacitance between one or both signal conductors 112, 114 and the locking cylinder 100 or components belonging to it, which usually represent a ground potential or are connected to it, is as small as possible which, for example, can be achieved by a correspondingly large thickness of an insulating layer 1214 (FIG. FIG. 2 ).
  • the coupling capacitance between the components 112, 114 should be as large as possible, and the parasitic coupling capacitance between the components 112, 100 or 114, 100 should be as small as possible.
  • the advantages of the lock cylinder according to the invention are the following: There is no fixed mechanical or prefabricated wire connection between an inner side and an outer side of the lock cylinder or corresponding components of the signal transmission device 110 is required, resulting in a convenient installation of the lock cylinder 100, a changeability of the cylinder length on site and the like , Furthermore, a reading of access information on an inner side and a transmission, for example, by capacitive near field to the outside, so the electronic communication of different components 170, 180 in the region of the lock cylinder 100 is easily possible.
  • the signal transmission device 110 in a particularly preferred embodiment, can receive existing signals and forward them easily.
  • Another particular advantage is that no positive and / or non-positive and / or material connection between components 112, 114 of the signal transmission device 110 in the region of the inside I and the outside A is required.
EP14164938.4A 2013-05-02 2014-04-16 Schließzylinder Active EP2800069B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013208075.1A DE102013208075A1 (de) 2013-05-02 2013-05-02 Schließzylinder

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EP2800069A1 EP2800069A1 (de) 2014-11-05
EP2800069B1 true EP2800069B1 (de) 2017-05-31

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DE (1) DE102013208075A1 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735470A1 (de) * 1987-10-20 1989-05-03 Franzen Sicherheitstechnik Gmb Schliesseinrichtung mit kontaktloser daten- und leistungsstromuebertragung zwischen schloss und schluessel
DE102010018566A1 (de) * 2010-04-28 2011-11-03 Simonsvoss Technologies Ag Zustandsdetektionsvorrichtung für eine Schließvorrichtung und eine solche umfassende Schließvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2378765T3 (es) * 2004-03-11 2012-04-17 Keso Ag Cilindro de cierre electromecánico
EP1739631B1 (de) * 2005-06-24 2012-10-24 Assa Abloy Ab Modularer elektromechanischer Schliesszylinder
CH701503A2 (de) * 2009-07-29 2011-01-31 Kaba Ag Elektronische schliesseinrichtung.
DE102011100444A1 (de) * 2011-05-02 2012-11-08 Assa Abloy Sicherheitstechnik Gmbh Doppelschließzylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735470A1 (de) * 1987-10-20 1989-05-03 Franzen Sicherheitstechnik Gmb Schliesseinrichtung mit kontaktloser daten- und leistungsstromuebertragung zwischen schloss und schluessel
DE102010018566A1 (de) * 2010-04-28 2011-11-03 Simonsvoss Technologies Ag Zustandsdetektionsvorrichtung für eine Schließvorrichtung und eine solche umfassende Schließvorrichtung

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DE102013208075A1 (de) 2014-11-06

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