EP3957809B1 - Procédé de fabrication d'une clé au moyen d'un générateur - Google Patents

Procédé de fabrication d'une clé au moyen d'un générateur Download PDF

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Publication number
EP3957809B1
EP3957809B1 EP21192186.1A EP21192186A EP3957809B1 EP 3957809 B1 EP3957809 B1 EP 3957809B1 EP 21192186 A EP21192186 A EP 21192186A EP 3957809 B1 EP3957809 B1 EP 3957809B1
Authority
EP
European Patent Office
Prior art keywords
key
generator
electronics
lock cylinder
bow
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
EP21192186.1A
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German (de)
English (en)
Other versions
EP3957809C0 (fr
EP3957809A1 (fr
Inventor
Matthias DAUBITZ
Markus Wahl
Michael Fritz
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.)
Assa Abloy Sicherheitstechnik GmbH
Original Assignee
Assa Abloy Sicherheitstechnik 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
Priority claimed from DE102021114241.5A external-priority patent/DE102021114241A1/de
Application filed by Assa Abloy Sicherheitstechnik GmbH filed Critical Assa Abloy Sicherheitstechnik GmbH
Publication of EP3957809A1 publication Critical patent/EP3957809A1/fr
Application granted granted Critical
Publication of EP3957809C0 publication Critical patent/EP3957809C0/fr
Publication of EP3957809B1 publication Critical patent/EP3957809B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0057—Feeding
    • E05B2047/0062—Feeding by generator

Definitions

  • the invention relates to a method for producing a key with a key bow and a key shank protruding freely from the key bow according to the features of the preamble of claim 1.
  • Keys for actuating an electric cylinder are known from practice. These keys have key electronics to transmit a coded opening signal to the locking cylinder, a so-called E-cylinder.
  • E-cylinder a coded opening signal to the locking cylinder
  • One advantage is that the coding of the key or e-cylinder can be easily programmed electronically.
  • a key with a key bow and a key shank for actuating electronically secured locks is known.
  • This key has a flywheel generator and an energy store, which is arranged in the key bow.
  • the flywheel generator has a mass pendulum in the form of a flywheel, which is driven by vibrations that occur when carrying or moving the key.
  • This energy will be in one Stored energy storage in order to use this energy when operating a lock cylinder, if necessary, to generate an electronically coded opening signal.
  • such a key also has additional components for the generator and the electronics. The production of such a key is therefore correspondingly expensive.
  • the object of the invention is to provide a key that is sustainable from an environmental point of view, while having a high level of security and reliability and, in particular, being easy to produce.
  • this object is achieved by a method for producing a key according to the features of claim 1 .
  • a method for producing a key with a key bow and with a key shank protruding freely from the key bow having key electronics which transmits a coded opening signal to a lock cylinder and also having a generator which transmits the key electronics and/or a Lock cylinder electronics supplied with electrical energy. It is essential that the generator and the key electronics are each designed as a structural unit and the generator is placed on the key electronics, or the key electronics is placed on the generator, the generator being electrically connected to the key electronics by the placement.
  • Both the generator and the key electronics each include a plurality of individual components. By these components each as a unit are formed, there is no need to integrate such a plurality of corresponding components individually into the key. Instead, in the production according to the invention, it is sufficient if one structural unit from the generator and one structural unit from the key electronics are used and connected to one another. In particular, this is done in one step. This simplifies the production of the key considerably and production costs can also be reduced without the quality or reliability of the key suffering as a result. Furthermore, at the same time as the generator is placed on the key electronics, an electrical connection is created between the generator and the key electronics, without this having to be produced separately, ie with an additional work step. As a result, both the mechanical connection and the electrical connection are preferably completed in one work step.
  • Placing the generator on the key electronics is preferably understood to mean a mechanical connection, placement or joining of the two structural units.
  • the generator unit and the key electronics unit can be joined or placed on top of one another or connected to one another in such a way that a new, in particular composite, unit is formed.
  • a structural unit is understood to mean a modular configuration.
  • the generator and/or the key electronics are each designed as a structural unit or as a module and can be used as such in the key or in the key bow. This simplifies the production of the key, since the components of the respective structural unit do not have to be used separately and connected to one another. Instead of this the assembly can be prefabricated and used as a complete module in the manufacture of the key.
  • a structural unit preferably has a mechanical support for holding a number of components of the generator or the key electronics and/or a housing for holding a number of components of the generator or the key electronics.
  • the key electronics have at least two contact pins and the generator has at least two corresponding contact sockets, or that the generator has at least two contact pins and the key electronics have at least two corresponding contact sockets, and that when the generator is placed on the key electronics, the at least two Contact pins are electrically connected to the at least two corresponding contact sockets.
  • the contact pins and the corresponding contact sockets can be designed as a plug-in connection.
  • the contact pins or the contact sockets can each be arranged mechanically firmly on a structural unit, i.e. the generator or the key electronics and aligned in such a way that when the generator is placed on the key electronics, a plug connection is automatically established and the generator is electrically connected to the key electronics .
  • the at least two corresponding contact sockets can be formed as a single socket with two poles.
  • the at least two contact pins can be designed as a plug with two poles.
  • the electronic key has at least two contact pins and the generator has at least two corresponding contact surfaces, or that the generator has at least two contact pins and the electronic key has at least two corresponding contact surfaces, and that when the generator is placed on the electronic key, the at least two Contact pins are electrically connected to the at least two corresponding contact surfaces.
  • the contact pins By designing the contact pins as spring-loaded pins, an additional tolerance compensation can take place. This improves the reliability of the electrically conductive connection.
  • contact springs produced using stamping and bending technology with a dedicated contact rivet or also known as conical coil connectors with a corresponding coating, such as those used for contacting battery cells, can also be used as contact pins. These also allow tolerance compensation and, at the same time, long-term stable contact.
  • the bow of the key is designed as a housing with a space for accommodating the generator and the key electronics.
  • the bow of the key can have two halves of the housing, with the key electronics being arranged in the first half of the housing and the generator being arranged in the second half of the housing.
  • the generator is placed on the key electronics and connected in an electrically conductive manner. This further simplifies the manufacture of the key, since the attachment between the generator and the key electronics can take place in one go with the connection of the two housing halves.
  • the key shank is connected to the first housing half and the key electronics are arranged in the first housing half, preferably connected to the first housing half, in particular glued, latched or screwed, and that the key electronics are electrically conductively connected to the key shank before the generator is placed on the key electronics.
  • the key shank has an electrically conductive body and a contact that is electrically insulated from this for establishing an electrical connection to a lock cylinder, and that the key electronics in the first housing half are connected to the electrically conductive body of the key via a first connection Key shank and is electrically conductively connected via a second terminal to the contact.
  • the key electronics can be electrically conductively connected to the key shank in a simple manner.
  • two electrically conductive contacts can also be provided on the key shank, which are designed to be insulated from the key shank. This has the advantage that the key can also be used in potentially explosive areas.
  • the electronic key is formed together with an energy store, comprising at least one capacitor, on a common circuit board as a structural unit.
  • Further components of the key electronics can be passive components, for example resistors and/or capacitors and/or coils, and/or active components such as, for example, integrated circuits (ICs) and/or transistors and/or diodes.
  • the generator is designed as a structural unit together with a restoring spring and with a transmission device and preferably with a transmission element. Further components of the generator can be bearings and/or magnets and/or pole coils and/or a rotor and/or a stator.
  • the generator arranged in the bow of the key is designed to supply the key electronics with electrical energy.
  • the generator is driven by a movable component, which when inserting the key shank of the key in a Lock cylinder comes into contact with the lock cylinder and drives the generator upon further insertion of the key shank into the lock cylinder, preferably drives it in rotation.
  • the generator located in the bow of the key which is automatically driven when the key is inserted into the lock cylinder, provides power to supply the key electronics.
  • no other power source is required apart from the generator, so that no battery or rechargeable battery is required to operate the key. This eliminates the need to replace batteries or replace defective batteries over the course of the service life of the key. On the one hand, this increases the reliability and availability of the key and, on the other hand, waste is avoided.
  • a further advantage is that the arrangement of the generator in the key bow means that the key bow can be used universally for different locking cylinders, since the key has its own power supply.
  • a lock cylinder is actuated or mechanically actuated by the key produced by the method according to the invention.
  • Actuation of the lock cylinder in particular mechanical actuation of the lock cylinder, is preferably understood to mean rotation of the lock cylinder or the lock cylinder core by the key.
  • the key shank is inserted into a key channel of the lock cylinder.
  • the lock cylinder can be designed in particular as a so-called e-lock cylinder and has key electronics and an electronically switchable blocking element.
  • an electronically coded opening signal is transmitted or exchanged between the key and the lock cylinder in order to check whether the key is authorized to open.
  • the electronically switchable blocking element normally blocks actuation of the lock cylinder. Only after the key electronics or the lock cylinder has received a correct or valid opening signal from the key or the key electronics is the electronically switchable blocking element released and the lock cylinder can be actuated by turning the key.
  • the lock cylinder can be provided for installation in a lock of a building door, for example a mortise lock with single locking or multiple locking.
  • the lock cylinder can be designed as a lock cylinder according to a DIN standard or as a so-called Swiss lock cylinder or as a lock cylinder according to a Scandinavian standard. These locking cylinders differ in their external dimensions.
  • Such a mechanical coding can be scanned by the key shank when it is inserted into the lock cylinder and used as a security feature in addition to the coded opening signal.
  • the key shank does not have any mechanical coding, but rather the opening authorization is provided solely by the electronically coded opening signal.
  • An electronically coded opening signal is preferably understood to mean a signal which has a coding or encryption.
  • the opening signal can be generated by the electronic key or is stored in the electronic key via parameterization or programming.
  • the opening signal can then be encrypted, for example RSA-encrypted or DES-encrypted or AES-encrypted.
  • Different opening signals can be provided or generated in the key electronics.
  • group opening signals or individual opening signals or general opening signals can be provided.
  • a single opening signal is authorized to operate a single locking cylinder.
  • a group opening signal is authorized to operate several locking cylinders, i.e. a group of locking cylinders.
  • a general opening signal can activate all locking cylinders in a locking system, similar to a master key.
  • the coded opening signal can be transmitted to a locking cylinder by wire.
  • the coded opening signal can also be transmitted wirelessly.
  • the key electronics can have a wireless interface, preferably ZigBee or Bluetooth or an RFID interface.
  • the key shank is preferably designed to be electrically conductive and the electrical contact is designed to be insulated from the key shank.
  • an electrical circuit having two poles can be constructed, for example by using the key shank as ground and the electrical contact as the second pole.
  • the electrical contact can also be designed as a data interface, in particular a bidirectional data interface.
  • an encrypted, electronically coded opening signal can be exchanged between the lock cylinder electronics and the key electronics via this data interface.
  • Common encryption mechanisms such as AES encryption or RSA encryption can be used for the encryption.
  • the electrical contact as a bidirectional data interface for establishing a wired data connection between the electronic key and a Lock cylinder electronics is formed.
  • the electrical contact can also be designed as a data interface, in particular a bidirectional data interface.
  • an encrypted, electronically coded opening signal can be exchanged between the lock cylinder electronics and the key electronics via this data interface.
  • Common encryption mechanisms such as AES encryption or RSA encryption or DES encryption can be used for the encryption.
  • the key electronics include an energy store.
  • it has a capacitor as an energy store for the electrical energy generated by the generator and enables energy to be temporarily stored.
  • the electrical energy generated by the generator can be stored or temporarily stored via the energy store. This makes it possible to use the electrical energy generated by the generator efficiently. For example, electrical energy can be supplied via the energy store of the key electronics over a longer period of time than the generator supplies electrical energy.
  • the key electronics does not require or have any other power source apart from the generator.
  • one embodiment can provide that when the key is inserted in a lock cylinder, the generator and/or the energy store supplies the lock cylinder electronics of the lock cylinder with electrical energy via the electrical contact of the key shank becomes.
  • a separate power supply in particular a mains-connected power supply, can thus be omitted for the lock cylinder.
  • the housing of the key bow can be electrically insulating, preferably made of a plastic. This creates a mechanically robust and at the same time electrically non-conductive installation space for the generator and the key electronics.
  • the key bow or the housing of the key bow can be mechanically firmly connected to the key shank, for example glued, or riveted, or screwed or molded onto the key shank.
  • a movable component in particular a carriage or a slide, is arranged on the key shank.
  • the moveable member cooperates with the generator to drive the generator, preferably in rotation, to generate electrical energy.
  • the movable component preferably comes into contact with the lock cylinder.
  • the movable component is displaced relative to the key shank.
  • carriage and slide are preferably used synonymously here. These are components that have the same function. Carriages and sliders usually differ in the way they are mounted. A slide, for example, sits more on the outside of its guide, i.e. on the key shank, and encompasses a guide. A slide is guided, for example, in a groove in the key shank and preferably engages in a form-fitting manner. Both types of storage can be implemented next to each other in one component.
  • the movable component in particular the carriage or the slide, is arranged on the key shank or connected to the key shank before the key shank is connected to the key bow.
  • the movable component or that the carriage or the slide interacts with a gear element in order to convert the linear movement of the movable component or the carriage or the slide into a rotational movement for rotating the generator.
  • the transmission element is connected to a spindle drive or a connecting rod drive or a belt drive, or that the transmission element is designed as a spindle drive or as a connecting rod drive or as a belt drive.
  • the linear movement of the moving component can be converted into a rotary movement to drive the generator via the spindle drive or connecting rod drive or belt drive.
  • the transmission element is part of a transmission device.
  • a transmission device comprising the transmission element and a transmission in order to transmit the rotational movement of the transmission element to the generator at a different speed.
  • the transmission ratio of the transmission device can be selected in such a way that the generator is driven at the best possible speed with regard to converting the mechanical energy into electrical energy.
  • the advantage of the clutch is that the drive of the generator with the gear element and the carriage are constructed in two parts. Due to this two-part structure, the gear element assigned to the generator can be accommodated in the bow of the key.
  • the carriage or the slide can be arranged as a movable element outside the key bow on the key shank. It is advantageous that the carriage or the slide is connected to the gear element via the coupling in such a way that both tensile forces and pressure forces are transmitted between the gear element and the carriage or slide.
  • the coupling is dimensioned in such a way that the pressure forces or thrust forces occurring during normal operation are not sufficient to release the coupling connection.
  • the coupling can be designed as a snap-in coupling or snap-on coupling and the carriage or slide can be connected to the transmission element by pressure in the direction of the transmission element by snapping in or snapping in the coupling.
  • the gear element converts a linear movement of the carriage or slide into a rotational movement for rotating the generator.
  • an overrunning clutch can be provided so that the carriage or the slide only engages with the generator when the key is inserted into a locking channel of a lock cylinder, while the overrunning clutch separates the carriage or the slide when it is pulled out, so that the generator only driven in one direction of rotation.
  • the overrunning clutch can be provided between the generator and the movable component.
  • the overrunning clutch can be constructed in the same way as a bicycle freewheel. I.e. as long as the carriage or the slide is moved in the direction of the key bow, they are in driving engagement with the generator. If the carriage or the slider is braked or stops towards the end of the path, the overrunning clutch separates the connection to the generator.
  • the generator can continue to rotate even if the carriage or slide is braked or is stationary. Furthermore, when the key is pulled out of a lock cylinder, the carriage or the slide can move in the opposite direction to the original drive direction, i.e. move back into the starting position, without the rotation of the generator being adversely affected as a result.
  • the carriage or the slide is acted upon by a spring in the direction of the tip of the key.
  • the spring can be designed as a torsion spring or as a spiral spring.
  • the spring can be used to ensure that the carriage or slide is always in its initial position when the key is removed from a lock cylinder. ie in the front position, ie in the position facing the tip of the key shank.
  • an optical display preferably comprising an LED
  • the optical display being supplied with electrical energy by the generator. Error messages or status messages, for example, can be visually visualized for a user by the visual display.
  • the invention further relates to a system having a key produced according to the method according to the invention described above or a system having a key produced according to the method according to the invention described above and a lock cylinder.
  • the system includes a mechatronic lock cylinder or a so-called E-cylinder, which has lock cylinder electronics.
  • the lock cylinder electronics and the key electronics are programmed or programmed accordingly, so that they can exchange and validate the coded opening signal with one another.
  • the key electronics When validating the opening signal, it can be provided, for example, that the key electronics generate a coded opening signal and transmit this to the locking cylinder electronics.
  • the locking cylinder electronics check the opening signal and if the opening signal is valid, the locking cylinder electronics releases a switchable blocking element in order to actuate the locking cylinder.
  • the lock cylinder electronics is supplied by the generator with electrical energy to a between the To check the opening signal exchanged between the key electronics and the lock cylinder electronics and, if there is an opening authorization, to activate a blocking element in order to enable mechanical actuation of the lock cylinder.
  • FIGS. 1a, 1b and 1c show an embodiment of the invention.
  • the key 1 according to the invention is shown together with a lock cylinder 11 in different operating positions.
  • FIG 1a the key 1 and the lock cylinder 11 are shown separately, ie before the key 1 is inserted into the lock cylinder 11 .
  • the key 1 is shown partially inserted into the keyway of the lock cylinder 11 .
  • the key 1 is shown fully inserted into the keyway of the lock cylinder 1. In this in the Figure 1c shown position, it is possible to actuate the lock cylinder 11 with the key 1.
  • the key cylinder 11 is operated by the key 1, the key is rotated to operate the key cylinder 11 in an opening direction or, conversely, in a closing direction.
  • the lock cylinder 11 When the lock cylinder 11 is actuated in the opening direction, if the lock cylinder 11 is inserted into a corresponding lock, for example a mortise lock of a building door, this is unlocked, i.e. the locking elements of the bolt lock, for example a lock bolt and/or a lock latch, are pulled back into the lock housing.
  • the lock When operated in the firing direction, the lock is locked accordingly, ie the locking elements, for example the lock bolt and/or a latch bolt, are moved out of the lock housing into the locked position.
  • the key 1 has a key shank 3 and a key bow 2 connected to the key shank 3 .
  • the key bow 2 is designed as a housing with space for accommodating components.
  • a generator 9 is arranged inside the key bow 3 .
  • a movable component 4 is arranged on the key shank 3 and is drive-connected to a gear element 5 arranged in the key bow 2 .
  • the generator 9 is driven via the transmission element 5 to generate electrical energy.
  • a transmission 6 or transmission device 6 acting between the transmission element 5 and the generator 9 is provided.
  • a rotational movement can be translated via the transmission device 6 so that the generator 9 is driven at a correspondingly adapted speed.
  • the movable component 4 is designed as a carriage 42 that is movably mounted on the key shank 3 .
  • the carriage 42 comes into contact with the lock cylinder 11 when the key 1 is inserted into the lock cylinder and is displaced relative to the key shank as the key shank 3 is further inserted into the firing channel of the lock cylinder 11, thereby driving via the gear element 5 and the gear device 6 in generator 9.
  • the generator 9 generates electrical energy in order to provide key electronics 7, shown for example in Figure 2a to supply with electrical energy.
  • Key electronics 7 shown generates an electronically coded opening signal and transmits this via an electrical contact 32 arranged on the key shank to the lock cylinder 11 or to lock cylinder electronics 12 (shown in 15 ).
  • an electrical circuit between lock cylinder electronics 12 and key electronics 7 is closed.
  • a coded opening signal and/or electrical energy can be exchanged between the key electronics 7 and the lock cylinder electronics 12 via this circuit. If a correct opening signal is present, a blocking element of the lock cylinder 11 is released by the lock cylinder electronics 12 so that it can be rotated by the key 1 or the key shank 3 .
  • the lock cylinder 11 is designed as a so-called electric cylinder. Ie it has a switchable blocking element 13 ( figure 15 ), which must be activated in order to enable rotation of the lock cylinder 11.
  • a coded opening signal is generated by the key electronics 7 and transmitted to a locking cylinder electronics 12 . This coded opening signal is checked and only after confirmation of a correct opening authorization is the blocking element 13 released. This electronic coding enables a high security standard to be achieved.
  • the key electronics 7 can check the lock cylinder electronics 12 to determine whether the Shooting cylinder 11 is a system associated with the key 1. Only after the lock cylinder 11 has been validated by the key electronics 7 , so to speak, is a corresponding coded opening signal generated by the lock cylinder electronics 7 and transmitted to the lock cylinder 11 . In this way, safety can be significantly increased again.
  • the key 1 according to the invention is shown with the key bow 2 open.
  • the key electronics 7 can be seen through the open housing of the key bow 2 .
  • the generator 9 is arranged in a concealed manner behind or below the key electronics 7 .
  • the movable carriage 42 mounted on the key shank 3 is arranged on the key shank 3 and is connected to the gear element 5 arranged within the key bow 2 .
  • the transmission element 5 is spatially arranged between the key electronics 7 and the generator 9 .
  • the movable carriage 42 When the key 1 is inserted into a lock cylinder, the movable carriage 42 is moved from its front resting position or starting position, which is arranged in the region of the key shaft tip 35, along the key shaft in the direction of the key bow 2. As a result, the generator 9 is driven by means of a gear device 6 arranged between the movable gear element 5 and the generator 9 .
  • the transmission device 6 serves to translate the longitudinal movement of the carriage 42 into a rotational movement for driving the generator 9 . At the same time, the transmission device 6 adjusts the required speed for the generator 9 .
  • a restoring spring 62 is arranged in the bow 2 of the key.
  • the restoring spring 62 can be designed as a component of the transmission device 6 or can be designed as a separate restoring spring.
  • the return spring 62 is formed in the example shown as a torsion spring 62 and serves to move the movable component 4 or the carriage 42 when removing the key 1 from a lock cylinder 11 back to its rest position, ie in the Figure 2a To spend position shown near the tip 35 of the key shank 3.
  • a locking pin 31 is arranged in the area of the key tip 35 .
  • the locking pin 31 is spring-loaded laterally to the key shank 3 and is used for the locking cylinder according to the 1c position shown, so to keep in the fully retracted position, in particular to hold against the force of the return spring 62.
  • An energy store 81 is provided in order to use the electrical energy generated by the generator 9 efficiently.
  • the energy store 81 is arranged together with the key electronics 7 on a circuit board.
  • the energy store 81 has a number of capacitors. According to the presentation of Figure 2a includes the energy store 81 four capacitors 811, 812, 813 and 814.
  • the capacitors 811, 812, 813 and 814 are designed as SMD electrolytic capacitors.
  • the energy generated by the generator 9 is stored in the energy store 81 in order to supply the key electronics 7 and/or the lock cylinder electronics 12 . As a result, the energy generated by the generator 9 can then be used efficiently. In particular, the duration of the supply of key electronics 7 and / or Lock cylinder electronics 12 are extended because the electrical energy is also still available via the energy store 81 when the generator 9 is no longer driven.
  • Two spring pins 71 and 72 are provided to ensure electrical contact between generator 9 and key electronics 7 or energy store 81 .
  • the spring pins 71 and 72 contact two conductive pads 731 and 732 in the Figure 2b are shown.
  • FIG. 2b shows the key 1 according to the Figure 2a , but here the electronic key 7 has been removed for the sake of clarity.
  • the bow 2 of the key has an aperture 23 in the area of the transition to the shank 3 of the key.
  • the cover serves to cover the opening of the key bow 2 arranged in the area of the key shank 3 .
  • connection pins 741 and 742 can be seen. These two connection pins are used to connect the key electronics 7 to the key shank 3 in an electrically conductive manner.
  • the first connection pin 741 connects the ground line of the key electronics 7 to the key shaft 3.
  • the second connection pin 742 connects the key electronics to the electrical contact 32.
  • FIG. 3a a variant of the key 1 according to the invention is shown.
  • the key 1 in turn comprises a key shank 3 which is connected to the key bow 2 .
  • a generator 9 is arranged in the bow 2 of the key, which is driven by means of a transmission device 6 by the movable component 4 arranged on the key shank 3 or the movable carriage 42 .
  • a connecting rod drive 53 is driven by the transmission element 5 .
  • the connecting rod drive 53 has a connecting rod 531 which converts the linear movement of the gear element 5 into a rotational movement on the pinion 61 for driving the generator 9 .
  • the Figure 3b 1 shows a further exemplary embodiment of the key 1 according to the invention.
  • This key 1 also has a key shank 3 in accordance with the exemplary embodiments described above, as well as a key bow 2 connected to it.
  • a generator 9 is arranged in the bowl head 2 .
  • a belt drive 42 for driving the generator 9 is driven by means of the movable transmission element 5 via the movable component 4 or the movable carriage 42 .
  • the belt drive 52 has a first deflection roller 523 and a second deflection roller 524 .
  • a drive belt 521 is guided around the two deflection rollers and drives a pinion 61, via which a gear device 6 and the generator 9 are driven.
  • the circulating drive belt 521 is connected to the transmission element 5 by means of a belt shoe 522 .
  • the belt 521 is displaced and thereby drives the pinion 61 in rotation. This rotational movement is translated by the gear device 6 to drive the generator 9 to generate electrical energy.
  • the movable gear element 5 drives a spindle drive 51.
  • This includes a spindle nut 511 guided on a spindle 512.
  • the spindle nut 511 is connected to the movable gear element 5 and is driven by this or by the carriage 42 along the Spindle 512 driven.
  • the spindle 512 is caused to rotate about its longitudinal axis. These rotations are translated into the plane of rotation of the gear device 6 or the generator 9 by means of an angular gear 513 and transmitted to it.
  • a rack and pinion drive 54 is driven by the movable component, which is designed here as a rack 55 .
  • the toothed rack 55 meshes with a pinion 61 of the transmission device 6 in order to convert the linear movement of the carriage 42 into a rotary movement for the generator 9 .
  • an overrunning clutch 63 can be seen, which is arranged between the transmission device 6 and the generator 9 .
  • the overrunning clutch 63 serves to decouple the carriage 42 or the movable component 4 from the generator 9 at the end of the drive movement.
  • the overrunning clutch 63 works according to the principle of a bicycle freewheel. This makes it possible for the carriage 42 to be uncoupled from the generator 9 as soon as the carriage 42 comes to a halt at the end of the drive movement or is returned to its starting position near the key shank tip 35 by the return spring.
  • the overrunning clutch 53 is provided in all exemplary embodiments of the key 1 according to the invention. In the preceding exemplary embodiments, however, the one-way clutch 63 is not drawn in or labeled for the sake of clarity.
  • the Figure 4b is a detailed representation in the area of the rack and pinion drive 54. It can be seen here how the rack 55 meshes with the pinion 61.
  • the key 1 according to the invention is shown in the side position in the starting position.
  • the movable carriage 42 is in its front position in the area of the tip 35 of the key.
  • the carriage 42 is directly connected to the gear element 5 or the toothed rack 55 .
  • the toothed rack 55 meshes with the pinion 61 of the transmission device 6 and, by means of a further pinion 61a, transmits the rotational movement to the generator 9 in order to generate electrical energy.
  • FIG. 1 shows the corresponding key 1 fully inserted into a lock cylinder, but without a lock cylinder. It can be seen here that the carriage 42 or the toothed rack 55 are arranged in the rear stop position close to the bow 2 of the key. In this position, the shifting of the toothed rack 55 transmitted a rotational movement to the generator 9, causing it to rotate and generate electrical energy.
  • the Figures 7a and 7b shows the corresponding position according to the Figures 6a and 6b in side view.
  • FIG. 8 another exemplary embodiment of the key 1 according to the invention is shown.
  • This embodiment corresponds essentially to the embodiment of FIG Figures 1a to 2b .
  • the movable component 4 on the key shank 3 is designed here as a plunger 41 projecting from the key bow parallel to the key shank.
  • the plunger 41 is mounted on the aperture 23 of the key bow 2 so that it can move linearly. Analogously to the carriage 42, the plunger 41 comes into contact with the lock cylinder 11 when the plunger shank 3 is inserted and is pushed along the key shank 3 in the direction of the key bow 2 in order to generate via the movable gear element 5 or the generator 9 powered by electrical energy.
  • FIG. 9 an exploded view of the key 1 according to the invention is shown.
  • This key 1 largely corresponds to that in the Figures 1a to 2b illustrated embodiments.
  • the exploded view shows that the bow 2 has two housing halves 21 , 22 .
  • the electronic key system 7 is arranged in the first housing half 21 .
  • the key electronics 7 has a circuit board 84 which is fixed in the first half of the housing.
  • the generator 9 is arranged in the second housing half 22 .
  • the key shank 3 engages between the two housing halves 21 and 22 and is connected to the key bow 2 or to the two housing halves 21 and 22 by means of screws.
  • the cover 23 serves to cover the opening on the key bow 2 in the area of the key shank 3 .
  • the bezel 23 is pushed onto the key shank 3 from the front and, after the two housing halves 21 and 22 have been attached to one another, it automatically stops on the key bow 2.
  • the carriage 42 is shown in the removed position on the key shank 3 .
  • the key shank 3 has an insertion area 34 in the area of the key bow 2 .
  • the material thickness of the key shank 3 is tapered in this area, so that the carriage 42 can be placed on the key shank 3 or removed from the key shank 3 in this area.
  • the key electronics 7 has a circuit board 84 as a supporting element. Both the components of the key electronics 7 and the components of the energy store 81 are arranged on the circuit board 84 .
  • the key electronics 7 is assigned to the housing half 21 as a structural unit.
  • the generator 9 is designed as a structural unit.
  • the generator 9 includes the transmission device 6 and the return spring 62 and the overrunning clutch 63. For the sake of clarity in FIG 10 these components of the generator are not shown individually or designated.
  • the generator 9 is also designed as an assembly and assigned to the second housing half 22 of the key bow 2 .
  • the key electronics 7 are placed in the first housing half 21 as a structural unit.
  • the housing half 21 has registration marks that are complementary to registration marks arranged on the key electronics 7 or the circuit board 84, so that the key electronics 7 or circuit board 84 can only be inserted in the housing half 21 in a predetermined position.
  • the key electronics 7 are then connected to the key shank 3 .
  • the key electronics 7 are conductively connected to the key shank 3 and the electrical contact 32 . This takes place via the first connection pin 741 and the second connection pin 742.
  • These can be in the form of a wire connection, for example, and can be connected to the circuit board 84 of the key electronics 7 by means of an electrically conductive adhesive or by means of ultrasonic welding.
  • the generator 9 is assigned as a structural unit to the second housing half 22 of the key bow.
  • complementary registration marks can be provided on the generator and the second housing half 22 in order to define the alignment of the generator 9 with respect to the second housing half 22 .
  • the key electronics 7 is together with the energy store 81 arranged on the circuit board 84.
  • the energy store 81 has four capacitors 811, 812, 813 and 814.
  • the capacitors 811, 812, 813 and 814 are relatively bulky components.
  • the generator 9 has the transmission device 6 and the restoring spring 62 protruding from the generator 9 .
  • the capacitors of the energy store 81 are arranged on the circuit board 84 in such a way that they engage in the free spaces left by the generator 9 and thus keep the overall height and thus the thickness of the key bow 2 as small as possible. As a result, the space between key electronics 7 and generator 9 is optimally utilized.
  • the carriage 42 has a carriage shoe 421 and a carriage arm 43 projecting from the carriage shoe 421 .
  • the carriage shoe 421 is integral with the carriage arm 43 .
  • a clutch 45 is provided at the end of the carriage arm 43 .
  • This coupling serves to connect the carriage or carriage arm 43 to the movable gear element 5 .
  • the coupling 45 has a pin 46 which is arranged on the gear arm 5 and which interacts with a receiving device 47 arranged at the end of the carriage arm 43 .
  • the coupling is designed as a snap-in coupling and enables the connection between the carriage 42 and the movable gear element 5 even when the key bow 2 is closed. This is done by inserting the carriage arm 43 through the panel 23 and placing the carriage shoe 421 on the key shank 3 in the insertion area 34 . Then he can Sledge shoe 421 on the key shank 3 in the direction of the key tip, ie forwards.
  • the carriage shoe 421 is guided onto a carriage guide 33 or threaded into it.
  • the carriage guide 33 has a stop 335 which prevents the carriage 42 or the carriage shoe 421 from being able to be pushed forward beyond the key shank 3 by the return spring.
  • the carriage 42 To connect the carriage 42 to the transmission element 5, the carriage 42 is inserted backwards into the housing of the key bow 2, starting from the front position on the key shank 3.
  • the movable gear element 5 is automatically positioned in the correct position relative to the carriage arm 43 in the housing of the key bow 2 .
  • the receiving device 47 comes into contact with the pin 46 of the coupling 45.
  • the receiving device 47 has two spring-loaded tabs, such that when the carriage 42 is pressed further in the direction of the movable gear element 5 the coupling device 45 snaps into place in that the two tabs or the receiving device 47 engages around the pin 46 in a form-fitting manner and holds it in place.
  • the carriage 42 is connected to the movable gear element 5 by the coupling device 45 without the housing of the key bow 2 having to be open for this purpose. This enables the key 1 to be assembled quickly and advantageously.
  • the pin 46 when the generator is being assembled, the pin 46 can be guided laterally into the clearance of the receiving device and can be received there in a form-fitting manner. This direction of movement is no longer available after assembly, so that the pin 46 remains in the clearance 47 with a positive fit.
  • the slider shoe 421 is guided by the slider guide 33 .
  • This has two opposite grooves 333 and 334 .
  • the slide shoe 421 encompasses the slide guide 33 on both sides from the edge of the key shank 3 and is guided in the undercut grooves 333 and 334 in a form-fitting manner.
  • the carriage shoe 421 is guided both up and down in the vertical axis and laterally.
  • the slide shoe 421 encompasses the slide guide 33 on both sides and engages with its ends in the undercut grooves 333, 334 in a form-fitting manner.
  • the slider guide 33 has surfaces with a first flank 331 and a second flank 332 on its opposite sides. These flanks taper towards the edge of the key shank 3, ie run to a point.
  • the slider shoe 421 is designed to complement the tapered flanks 331 and 332 .
  • the 15 shows a schematic circuit diagram of the key 1 according to the invention shown as a rectangle with a dashed border. These include the generator 9, the key electronics 7 and an energy store 81 connected between the generator 9 and the key electronics 7. The components of the lock cylinder are shown in the rectangle labeled 11 with a dashed border. These include lock cylinder electronics 12 and an electrically switchable blocking element 13 for enabling or blocking actuation of the lock cylinder 11.
  • the energy store 81 includes a storage element, which is referred to here as a capacitor 811 . This can be designed as a single capacitor 811 or as a plurality of capacitors connected in parallel. The electrical energy generated by the generator 9 is stored in the capacitor 811 .
  • the key electronics 7 are connected via the electrical contact 32 to the lock cylinder 11 or to the lock cylinder electronics 12 arranged in the lock cylinder 11 and the blocking element 13 .
  • the lock cylinder electronics and the switchable blocking element 13 can also be supplied with electrical energy from the energy store 81 or from the generator 9. A separate power supply for the lock cylinder 11 can thus be dispensed with.
  • the electrical contact 32 is designed to transmit electrical energy and electrical information.
  • the electrical contact 32 is advantageously designed as a digital interface, in particular as a bidirectional serial interface.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (15)

  1. Procédé de fabrication d'une clé (1) avec un anneau de clé (2) et avec une tige de clé (3) dépassant librement de l'anneau de clé (2), dans lequel la clé comprend une électronique de clé (7) qui transmet un signal d'ouverture codé à un cylindre de serrure (11) et comprend en outre un générateur (9) qui alimente l'électronique de clé (7) et/ou l'électronique de cylindre de serrure (12) en énergie électrique,
    caractérisé en ce que
    le générateur (9) et l'électronique de clé (7) sont conçus chacun comme un module et le générateur (9) est monté sur l'électronique de clé (7) ou l'électronique de clé (7) est montée sur le générateur (9), dans lequel, du fait du montage, le générateur (9) est relié de manière électro-conductrice avec l'électronique de clé (7).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'électronique de clé (7) comprend au moins deux broches de contact (71, 72) et le générateur (9) comprend au moins deux douilles de contact correspondantes, ou en ce que le générateur (9) comprend au moins deux broches de contact (71, 72) et l'électronique de clé (7) comprend au moins deux douilles de contact correspondantes, et en ce que, lors du montage du générateur (9) sur l'électronique de clé (7), les au moins deux broches de contact (71, 72) sont reliées de manière électro-conductrice avec les au moins deux douilles de contact correspondantes.
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    l'électronique de clé (7) comprend au moins deux broches de contact (71, 72) et le générateur (9) comprend au moins deux surfaces de contact (731, 732) correspondantes ou en ce que le générateur (9) comprend au moins deux broches de contact (71, 72) et l'électronique de clé (7) comprend au moins deux surfaces de contact (731, 732) correspondantes et en ce que, lors du montage du générateur (9) sur l'électronique de clé (7), les au moins deux broches de contact (71, 72) sont reliées de manière électro-conductrice avec les au moins deux surfaces de contact (731, 732) correspondantes, dans lequel, il est prévu, de préférence, que les au moins deux broches de contact (71, 72) soient conçues sous la forme de broches élastiques ou sous la forme de broches Pogo.
  4. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    l'anneau de clé (2) est conçu comme un boîtier avec un espace pour le logement du générateur (9) et de l'électronique de la clé (7).
  5. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    l'anneau de clé (2) comprend deux moitiés de boîtier (21, 22), dans lequel l'électronique de clé (7) est disposée dans la première moitié de boîtier (21) et le générateur (9) est disposé dans la deuxième moitié de boîtier (22), dans lequel, il est prévu, de préférence,
    en ce que, du fait d'un raccordement des deux moitiés de boîtier (21, 22) pour former l'anneau de clé (2), le générateur (9) est monté et relié de manière électro-conductrice avec l'électronique de clé (7), et/ou
    en ce que la tige de clé (3) est reliée avec la première moitié de boîtier (21) et l'électronique de clé (7) est disposée dans la première moitié de boîtier (21), de préférence reliée avec la première moitié de boîtier (21), plus particulièrement collée, encliquetée ou vissée,
    dans lequel, de préférence, il est prévu que l'électronique de clé (7) soit reliée de manière électro-conductrice avec la tige de clé (3) avant que le générateur (9) soit monté sur l'électronique de clé (7).
  6. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    la tige de clé (3) comprend un corps électro-conducteur et un contact (32) isolé par rapport à celui-ci, pour l'établissement d'une liaison électrique avec un cylindre de serrure (11), et en ce que l'électronique de clé (7) est reliée, de manière électro-conductrice, dans la première moitié de boîtier (21), par l'intermédiaire d'un premier raccord (741), avec le corps électro-conducteur de la tige de clé (3) ou, par l'intermédiaire d'un deuxième raccord (742), avec le contact (32).
  7. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    l'électronique de clé (7) est conçu, conjointement avec un accumulateur d'énergie (81), comprenant au moins un condensateur (811), sur une platine (84), commune, comme un module et/ou
    le générateur (9) est conçu, conjointement avec un ressort de rappel et avec un dispositif à engrenage (6), et de préférence avec un élément à engrenage (5), comme un module.
  8. Procédé selon l'une des revendications 6 ou 7,
    caractérisé en ce que
    dans une clé (1) enfichée dans un cylindre de serrure (11), l'électronique du cylindre de serrure (12) du cylindre de serrure (11) est alimentée en énergie électrique par le générateur (9) et/ou par l'accumulateur d'énergie (81) par l'intermédiaire du contact électrique (32) de la tige de clé (3).
  9. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    sur la tige de clé (3) est disposé un élément mobile (4), plus particulièrement un chariot (42) ou un curseur (42) qui, lors de l'insertion de la tige de clé (3) dans un cylindre de serrure (11), arrive en appui avec le cylindre de serrure et est déplacé par rapport à la tige de clé (3) et interagit avec le générateur (9) afin d'entraîner le générateur (9) pour la production d'énergie électrique, de préférence afin de l'entraîner en rotation, dans lequel il est prévu, de préférence,
    en ce que le chariot (42) ou le curseur (42) soit disposé sur la tige de clé (3) ou relié avec la tige de clé avant que la tige de clé (3) soit reliée avec l'anneau de clé (2) et/ou
    en ce que l'élément à engrenage (5) soit relié avec le chariot (42) ou le curseur (42) par l'intermédiaire d'un couplage (45) après que le générateur (9) a été monté sur l'électronique de clé (7).
  10. Procédé selon l'une des revendications 7 à 9,
    caractérisé en ce que
    l'élément à engrenage (5) est disposé entre le générateur (9) et l'électronique de clé (7).
  11. Procédé selon la revendication 9 ou 10,
    caractérisé en ce que
    le couplage (45) est conçu comme un couplage par encliquetage ou par blocage et le chariot (42) ou curseur (42) est relié par pression en direction de l'élément à engrenage (5) avec celui-ci par encliquetage ou blocage du couplage (45).
  12. Procédé selon l'une des revendications 7 à 11,
    caractérisé en ce que
    grâce à l'élément à engrenage (5), un mouvement linéaire du chariot (42) ou du curseur (42) est converti en un mouvement de rotation pour l'entraînement rotatif du générateur (9).
  13. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    un couplage à roue libre (63) est prévu, de façon à ce que le chariot (42) ou le curseur (42) soit emboîté avec le générateur (9) uniquement lors de l'introduction de la clé dans un canal de fermeture d'un cylindre de serrure (11), tandis que le couplage à roue libre (63) sépare le chariot (42) ou le curseur (42) lors du retrait, de façon à ce que le générateur (9) ne soit entraîné que dans un sens de rotation, dans lequel il est prévu, de préférence,
    en ce que le chariot (42) ou le curseur (42) est sollicité par un ressort en direction de la pointe de la clé.
  14. Procédé selon l'une des revendications 6 à 13,
    caractérisé en ce que
    le contact électrique (32) est conçu comme une interface de données bidirectionnelle pour l'établissement d'une liaison de données filaire entre l'électronique de clé (7) et une électronique de cylindre de serrure (12).
  15. Système comprenant une clé (1), fabriquée selon un procédé selon l'une des revendications précédentes, comprenant en outre un cylindre de serrure mécatronique (11), comprenant une électronique de cylindre de serrure (12) et un organe de blocage commutable (13) pour le déverrouillage d'un actionnement du cylindre de serrure (11), dans lequel il est prévu, de préférence,
    en ce que l'électronique du cylindre de serrure (12) est alimenté par le générateur (9) en énergie électrique, afin de contrôler un signal d'ouverture échangé entre l'électronique de clé (7) et l'électronique du cylindre de serrure (12) et, lors de l'existence d'une autorisation d'ouverture, pour déverrouiller un organe de blocage (13), afin de permettre un actionnement mécanique du cylindre de serrure (11).
EP21192186.1A 2020-08-20 2021-08-19 Procédé de fabrication d'une clé au moyen d'un générateur Active EP3957809B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121876 2020-08-20
DE102021114241.5A DE102021114241A1 (de) 2020-08-20 2021-06-01 Verfahren zur Herstellung eines Schlüssels mit einem Generator

Publications (3)

Publication Number Publication Date
EP3957809A1 EP3957809A1 (fr) 2022-02-23
EP3957809C0 EP3957809C0 (fr) 2023-06-07
EP3957809B1 true EP3957809B1 (fr) 2023-06-07

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT526318A1 (de) * 2022-03-02 2024-01-15 Evva Sicherheitstechnologie Schlüssel sowie Schließeinrichtung umfassend einen solchen Schlüssel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE219199T1 (de) 1999-03-23 2002-06-15 Evva Werke Schlüssel für die betätigung von elektronisch gesicherten schlössern
DE19918817C1 (de) * 1999-04-26 2000-09-07 Huf Huelsbeck & Fuerst Gmbh Elektronischer Schlüssel, insbesondere für Fahrzeuge

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EP3957809C0 (fr) 2023-06-07
EP3957809A1 (fr) 2022-02-23

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