EP4200501A1 - Clef dotée d'un générateur dans la tête de clef et d'un coulisseau pour entraîner le générateur - Google Patents

Clef dotée d'un générateur dans la tête de clef et d'un coulisseau pour entraîner le générateur

Info

Publication number
EP4200501A1
EP4200501A1 EP21766441.6A EP21766441A EP4200501A1 EP 4200501 A1 EP4200501 A1 EP 4200501A1 EP 21766441 A EP21766441 A EP 21766441A EP 4200501 A1 EP4200501 A1 EP 4200501A1
Authority
EP
European Patent Office
Prior art keywords
key
carriage
generator
shank
electronics
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
EP21766441.6A
Other languages
German (de)
English (en)
Inventor
Matthias DAUBITZ
Markus Wahl
Ulrich Fischer
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
Application filed by Assa Abloy Sicherheitstechnik GmbH filed Critical Assa Abloy Sicherheitstechnik GmbH
Publication of EP4200501A1 publication Critical patent/EP4200501A1/fr
Pending legal-status Critical Current

Links

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 key with a key bow and with a key shank according to the features of the preamble of claim 1.
  • Keys with key electronics are known from practice, which are used to transmit a coded opening signal to a lock cylinder. These are keys for operating a so-called e-cylinder, with the coding of the key or e-cylinder being easily programmable electronically. This means that the keys can be used universally and have a high security standard thanks to the electronic coding.
  • a disadvantage of such keys is the power requirement. Either the e-cylinder has to be wired through a door and supplied with power via a power pack, or the key requires replaceable batteries.
  • DE 32 08 818 discloses a lock cylinder with a generator.
  • the generator is arranged in the lock cylinder and is used to supply power to the lock cylinder electronics.
  • the generator arranged in the lock cylinder is driven in order to produce electrical energy.
  • a toothed rack is stamped into the shank of the key, which drives a pinion arranged in the lock cylinder in order to actuate the generator.
  • a lock cylinder with a generator is also known from JP 2013 199744 A.
  • the lock cylinder has a spring-loaded key channel. When the key is inserted into the keyway of the lock cylinder, the keyway is moved against a spring and drives a generator arranged in the lock cylinder via a pinion.
  • 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.
  • the key should have a long service life and be easy to use.
  • this object is achieved by a key with a key bow and a key shank according to the features of claim 1 . Furthermore, the object is achieved according to the invention by a method for producing a key according to the features of claim 27 .
  • a key with a key bow and a key shank for actuating a lock cylinder, in particular for a mechatronic lock-key system, comprising key electronics that transmit a coded opening signal to a lock cylinder, and with a generator to supply the Key electronics and / or a lock cylinder electronics with electrical energy.
  • the key shank has a carriage or a slide and mounts it so that it can move linearly along the key shank and the carriage or slide interacts with the generator to drive the generator to generate electrical energy when the key shank is inserted into a lock cylinder.
  • the invention also includes a method for producing a key, wherein a key shank is provided with a key bow rigidly connected to the key shank and the key bow has an opening in the area of the key shank, and wherein a slide having a slide shoe and a slide arm projecting from it is provided . It is essential that the slide arm is inserted into the opening of the key bow so far that the slide shoe is then placed on the key shaft in an insertion area arranged on the key shaft in front of the key bow and then moved along the key shaft in the direction of the key shaft tip and into an am Key shank shaped carriage guide is introduced.
  • the carriage arranged on the key shank creates a mechanically robust and functionally reliable key.
  • the key is self-sufficient due to the slide mounted on the key shaft and does not depend on components in the locking cylinder.
  • the key according to the invention can be produced easily and inexpensively by simply placing the carriage on the key shank and mounting it in a linearly displaceable manner.
  • the energy required to operate the key electronics is generated by the generator driven by the carriage when the key shank is pushed into a lock cylinder.
  • no other power source is necessary apart from the generator, so that no battery and no rechargeable battery are required to operate the key. There is no need to replace batteries or defective batteries. On the one hand, this increases the reliability of the key and, on the other hand, waste is avoided.
  • actuation of the lock cylinder means 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 is designed in particular as a so-called e-lock cylinder and has key electronics and an electronically switchable blocking element.
  • 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 is intended 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 be trained. These locking cylinders differ in their external dimensions.
  • This 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.
  • a mechatronic lock-key system is understood to be a system which has a lock with a lock cylinder that can be inserted into the lock and a key.
  • the term mechatronic indicates that the key is used for mechanical actuation by turning the lock cylinder.
  • 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.
  • 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 slide or slide component comes into contact with the lock cylinder when the key shank is pushed into a lock cylinder and drives the generator when the key shank is pushed further into the lock cylinder, in particular drives it in rotation.
  • the linear movement when the key shank is pushed into the lock cylinder is converted into a rotary movement for driving the generator.
  • pushing the key shank into the lock cylinder causes a continuous movement that causes the generator to rotate is transferred.
  • the generator is set in continuous rotation. The quicker the key is inserted, the higher the rotation speed of the generator can be.
  • 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 carriage has a carriage shoe guided on the key shank and a carriage arm, the carriage arm extending from the carriage shoe parallel to the key shank into the key bow.
  • the carriage is designed in two parts, in that it has the carriage shoe guided on the carriage shaft and a carriage arm.
  • the carriage shoe is designed in one piece with the carriage arm.
  • the carriage can be formed, for example, as a stamped part from sheet metal.
  • the slide shoe is placed on a narrow side of the key shank. As a result, the slide shoe can be arranged on the top or bottom of the key shank or guided through the key shank there.
  • the key shank has a carriage guide for holding the carriage shoe with two opposing flanks, each with a groove, and the carriage shoe encompasses both flanks and engages in the groove.
  • the opposing flanks of the key shank can incline towards one another towards the edge of the key shank and the carriage shoe can have correspondingly complementary sliding surfaces which are guided on the flanks.
  • one embodiment can provide that the key shank has a thinner material thickness in the area in front of the key bow than in the area of the carriage guide and is designed as an insertion area, so that the carriage shoe can be placed on the key shank or removed from the key shank in this area.
  • This enables the key to be manufactured easily, in that the key shank can be easily placed on the carriage shoe in the insertion area or can be removed from it.
  • it is not necessary to place the slide on the slide from the front or the tip of the key shank. This allows the front of the key shank to be provided with a stop that prevents the carriage from sliding forward off the key shank. This further improves the reliability and operational safety of the key.
  • the carriage has a stop for a lock cylinder on both narrow sides.
  • the two stops can be connected to one another via a narrow bar outside or inside the bow. This design has the advantage that the counterforce acts symmetrically when it is pushed in.
  • the carriage interacts with a gear element in order to convert a linear movement of the movable component into a rotational movement for rotating the generator.
  • the carriage can be connected to the gear element via a clutch in order to transmit tensile forces and/or pressure forces between the gear element and carriage.
  • the coupling makes it possible to design or decouple the carriage separately from the other key components. This simplifies the production of the key, since the key components can be produced or manufactured independently of the key.
  • the carriage can then be connected to the transmission element via the clutch in order to enter into a non-positive connection with the transmission or the generator.
  • the non-positive connection is designed in particular in such a way that the coupling transmits tensile forces and/or compressive forces between the transmission element and the carriage.
  • the coupling is dimensioned in such a way that the tensile forces and/or compressive forces that usually occur during operation are reliably transmitted without the coupling being released in the process.
  • the coupling has a pin which is arranged on the carriage or on the carriage arm and which is connected by a pin on the Gear element arranged receiving device is held, or that the clutch has a gear element arranged on the pin which is held by a slide or carriage arm arranged on the receiving device.
  • the coupling can be designed as a snap-in coupling or snap-on coupling.
  • the receiving device can have flexible receiving elements in order to receive the pin flexibly and to hold it in a form-fitting manner or to engage behind it.
  • the carriage can be connected to the transmission element by overpressing the flexible receiving device. The carriage can be pressed in the direction of the transmission element until the coupling snaps or engages, in particular until the receiving device grips the pin.
  • the transmission element is designed as a spindle drive or as a connecting rod drive or as a belt drive or as a toothed rack. Via the spindle drive or the connecting rod drive or the belt drive or the toothed rack, the linear movement of the carriage or the movable gear element can be converted into a rotary movement for driving the generator.
  • the transmission element is part of a transmission device, in particular 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 translation of the transmission device can be selected so that the generator is driven at the best possible speed with regard to a conversion of the mechanical energy of the carriage into electrical energy.
  • the transmission element and the clutch can be arranged within the bow of the key.
  • the transmission device is preferably arranged within the bow of the key.
  • an overrunning clutch can be provided so that the carriage 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 when it is pulled out, so that the generator can only be driven in one direction of rotation.
  • the overrunning clutch can be arranged, for example, between the generator and the movable transmission element or the carriage.
  • the overrunning clutch can be constructed analogously to a bicycle freewheel. Ie as long as the slide is moved in the direction of the key bow, the slide is in drive engagement with the generator. If the carriage is decelerated or stops near the end of its travel, the overrunning clutch separates the connection between the carriage and the generator. This allows the generator to continue rotating even if the carriage is slowed down or stopped.
  • the carriage when the key is pulled out of the lock cylinder, the carriage can move in the opposite direction to the drive direction without the generator being affected or the rotation of the generator being braked.
  • the overrunning clutch enables the carriage to be returned independently of the generator. This reduces the forces required to operate the key. In particular, the kinetic energy can be used better.
  • the transmission has the overrunning clutch.
  • the carriage and/or the gear element is spring-loaded for resetting, in particular is spring-loaded 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 ensures that the carriage is always in its starting position, i.e. in its front position, i.e. facing the tip of the key shank, when the key is pulled out of a lock cylinder.
  • the generator and the transmission element and the transmission device are designed together as a structural unit that can be inserted into the key bow, in particular that the transmission, the generator and the toothed rack are designed together as a structural unit that can be inserted into the key bow.
  • the key electronics can be designed as a structural unit or as a module.
  • the key electronics can have a circuit board on which the components of the key electronics, preferably all components of the key electronics, are arranged.
  • a structural unit is understood to mean a modular design. Ie the generator and/or the key electronics is 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 individual components of a structural unit, ie the generator, the transmission element and the transmission device, do not have to be used separately and connected to one another.
  • 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 displayed to a user by the optical display.
  • the electronic key system 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 by the energy store. This makes it possible to use the electrical energy generated by the generator efficiently.
  • the energy store can supply the key electronics with electrical energy over a longer period of time than the generator for generating electrical energy is driven.
  • amounts of energy that are still available from a previous operation and have not been consumed can be stored in the energy store. It can preferably be provided that the electronic key system does not require or have any other power source apart from the generator.
  • the generator or the energy store supplies both the key electronics and the lock cylinder with electrical energy.
  • a lock cylinder electronics and an electrically switchable blocking element of the lock cylinder can be supplied with electrical energy by the generator or the energy store.
  • a separate power supply, in particular a mains-connected power supply, can thus be omitted for the lock cylinder.
  • an electrical contact is arranged on the key shank in order to connect the key electronics to a lock cylinder electronics and that the generator is designed to supply a lock cylinder electronics with electrical energy via this contact.
  • the key shank is preferably designed to be electrically conductive and the electrical contact is designed to be insulated from the key shank.
  • two electrically conductive contacts can also be provided, 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.
  • 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.
  • a circuit can be closed with the lock cylinder by means of the electrical contact.
  • This makes it possible to supply the electronics of the lock cylinder, ie the lock cylinder electronics, with electrical energy by means of the generator arranged in the key or the energy store arranged in the key to supply.
  • a separate wiring of the locking cylinder through the lock or the door can be completely omitted.
  • One advantage is that there is no need for a power supply via a power pack. This means that the resulting power consumption of the lock-key system is zero, meaning that no CO2 has to be released for operation, for example.
  • no replaceable batteries and no rechargeable battery are required to supply the key or the lock cylinder. This means that no hazardous waste is produced when the key according to the invention or the lock-key system is operated.
  • the electrical contact can be designed to produce a wired data connection between the key electronics and a locking cylinder electronics.
  • 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 invention also relates to a system having a key according to one of the exemplary embodiments described above. It is provided that the system includes a mechatronic lock cylinder or a so-called e-cylinder, which has lock cylinder electronics.
  • the locking cylinder electronics can be supplied with electrical energy by the generator in order to check an opening signal exchanged between the key electronics and the locking cylinder electronics and, if there is an opening authorization, to release a blocking element in order to enable mechanical actuation of the locking cylinder.
  • the lock cylinder electronics and the key electronics are programmed accordingly so that they can exchange and validate the opening signal with one another.
  • validating the opening signal it can be provided, for example, that the locking cylinder 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 the switchable blocking element in order to actuate the locking cylinder.
  • one embodiment can provide for the coded opening signal to be exchanged bidirectionally between the lock cylinder electronics and the lock cylinder.
  • the key electronics can first check the lock cylinder electronics to determine whether the lock cylinder electronics or the type of lock cylinder is released for the corresponding key or for the corresponding lock-key system. Only after the locking cylinder has been validated will the locking cylinder electronics then generate a coded opening signal and transmit it to the locking cylinder or the locking cylinder electronics. The locking cylinder or the locking cylinder electronics will then check the coded opening signal and if this is valid, ie is valid, release the locking cylinder for operation. The lock cylinder can then be operated by turning the key, ie rotated in the opening direction, for example, in order to open a lock, ie to retract locking elements of a lock into the lock housing and unlock a door.
  • both the key electronics and the lock cylinder electronics and the blocking element are supplied with electrical energy by the generator.
  • the key can be operated with a lock cylinder or the lock-key system in such a way that when the key shank is pushed into the key channel, a movable component arranged on the key comes into contact with the lock cylinder and is displaced relative to the key shank when the key shank is pushed in further is used to drive the generator rotatively.
  • the slide arm is inserted into the opening of the key bow so far that the slide shoe is then placed on the key shaft in an insertion area arranged on the key shaft in front of the key bow and is moved along the key shank in the direction of the key shank tip and inserted into a carriage guide formed on the key shank.
  • the carriage arm is then connected to a generator arranged in the bow of the key via a clutch, in that the carriage arm is pressed against a gear element connected to the generator in order to couple a clutch arranged between the gear element and carriage arm.
  • the coupling can be designed as a snap coupling or locking coupling which cannot be released by the forces occurring during normal operation of the key.
  • the gear element limits a movement of the carriage into the bow of the key in such a way that the carriage does not reach the insertion area of the key shank when the carriage arm is coupled to the gear element. This enables a high level of operational safety and reliability of the key, since it is not possible to remove the carriage from the key shank when the key is completely assembled or manufactured.
  • the key or lock-key system according to the invention can be used on locks for building doors. In other applications, the key or the lock-key system can also be used on furniture doors or safe doors or vehicle doors. Further embodiments of the invention are shown in the figures and described below:
  • Fig. 1a-1c Key with a lock cylinder in different
  • Fig. 2a an embodiment of the invention
  • Fig. 2b an embodiment of the invention
  • Fig. 3a an embodiment of the invention
  • Fig. 3b an embodiment of the invention
  • Fig. 4a-7b an embodiment of the invention
  • FIG. 8 shows an exploded view of an exemplary embodiment of the key according to the invention
  • FIG. 9 a further exploded view according to FIG. 8;
  • Fig. 10a a 3D representation of the generator
  • Fig. 10b a side view of the generator and the
  • Fig. 14 a schematic circuit diagram of the invention
  • FIG. 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 shows the key 1 and the lock cylinder 11 separate, i. H. before the key 1 is inserted into the lock cylinder 11 shown.
  • FIG. 1b shows the key 1 partially inserted into the keyway of the lock cylinder 11.
  • FIG. 1c the key 1 is shown fully inserted into the lock channel of the lock cylinder 1. In this position shown in FIG. 1c, 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 it 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. Accordingly, when the lock is actuated in the locking direction, the lock is locked, i.e. 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 . When the movable component 4 moves along the key shank 3 , the generator 9 is driven via the transmission element 5 to generate electrical energy.
  • Transmission device 6 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.
  • FIG. 1a to 1c when the key 1 is inserted into the lock cylinder, the carriage 42 comes into contact with the lock cylinder 11 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 overdriving it the transmission element 5 and the transmission device 6 in generator 9.
  • the generator 9 generates electrical energy in order to supply electrical energy to a key electronic system 7, shown for example in FIG. 2a.
  • the electronic key 7 shown for example in FIG. 2a 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 an electronic lock cylinder 12 (shown in FIG. 14).
  • An electrical circuit is established via the electrical contact 32 in the fully inserted position of the key shown in FIG. 1c between lock cylinder electronics 12 and key electronics 7 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. That is, it has a switchable locking element 13 ( Figure 14), which must be unlocked 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 locking cylinder electronics 12 to determine whether the locking 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.
  • Key bow 2 shown. Through the open housing of the key bow 2 the key electronics 7 is visible.
  • 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 rest 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 designed as a torsion spring 62 in the example shown and serves to return the movable component 4 or the carriage 42 to its rest position, ie to the position shown in FIG. 2a, when the key 1 is removed from a lock cylinder 11 to spend near the tip 35 of the key shank 3.
  • a locking pin 31 is arranged in the area of the key tip 35 .
  • the detent pin 31 is spring-loaded laterally to the key shank 3 and serves to hold the key in the locking cylinder according to the position shown in FIG.
  • 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 illustration in FIG. 2a, the energy store 81 includes four capacitors 811, 812, 813 and 814.
  • the capacitors 811, 812, 813 and 814 are in the form of 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 to the key electronics 7 and/or the lock cylinder electronics 12 can be extended since the electrical energy is still available via the energy store 81 when the generator 9 is no longer being driven.
  • Two spring pins 71 and 72 are provided in order to ensure electrical contact between the generator 9 and the key electronics 7 or energy store 81 .
  • the spring pins 71 and 72 make contact with two conductive pads 731 and 732, which are shown in FIG. 2b.
  • FIG. 2b shows the key 1 according to FIG. 2a, but here the key electronics 7 have 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 also be seen from FIG. 2b. 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 in FIG. 3a.
  • 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, TI which translates the linear movement of the gear element 5 into a rotational movement on the pinion 61 for driving the generator 9 .
  • FIG. 3b 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, and a key bow 2 connected thereto.
  • a generator 9 is arranged in the key bow 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.
  • FIG. 3c Another exemplary embodiment of the key 1 according to the invention is shown in FIG. 3c.
  • the movable gear element 5 drives a spindle drive 51 here.
  • 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 .
  • the spindle 512 is caused to rotate about its longitudinal axis. These rotations are performed using of an angular gear 513 translated into the plane of rotation of the gear device 6 or the generator 9 and transmitted to it.
  • FIGS. 4a to 7b A further exemplary embodiment of the key 1 according to the invention is shown in FIGS. 4a to 7b.
  • 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 rotational movement for the generator 9 .
  • An overrunning clutch 63 which is arranged between the transmission device 6 and the generator 9, can be seen in FIG. 4a.
  • 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.
  • FIG. 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 to generate electrical energy.
  • Figures 6a and 6b show the corresponding key 1 in the fully inserted position in 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. 7a and 7b shows the corresponding position according to FIGS. 6a and 6b in a side view.
  • FIG. 8 shows an exploded view of the key 1 according to the invention.
  • This key 1 largely corresponds to the embodiments shown in Figures 1a to 2b.
  • 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 key shank 3 instead of screwing the key shank 3 to one of the two bow halves 21 , 22 , the key shank can be connected to the plastic material of the bow 21 , 22 by overmoulding the metal shank 3 .
  • 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, once 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. On the circuit board 84 are both the components of the key electronics 7 and the components of the energy store 81 are arranged.
  • the key electronics 7 is assigned to the housing half 21 as a structural unit.
  • Opposite the generator 9 is designed as a structural unit.
  • the generator 9 includes the transmission device 6 and the restoring spring 62 and the overrunning clutch 63. For the sake of clarity, these components of the generator are not shown or labeled individually in FIG. 10a.
  • 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 space-saving, staggered design of the two connected structural units of the generator 9 and the key electronics 7 can be seen in FIG. 10b.
  • the electronic key system 7 is arranged on the circuit board 84 together with the energy store 81 .
  • 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 free by the generator 9 and thus keep the overall height and thus the thickness of the key bow 2 as low as possible. As a result, the space between key electronics 7 and generator 9 is optimally utilized.
  • FIG. 11 shows an enlarged representation of the key shank 3 with the carriage 42 movably mounted thereon.
  • 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 . The carriage shoe 421 can then be moved on the key shank 3 in the direction of the tip of the key, ie forward.
  • 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 gear 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.
  • the pin 46 when the generator is being assembled, 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.
  • FIG. 12 shows an exemplary embodiment of the key according to the invention with the first housing half 21 removed.
  • the key shank 3 can be seen from the front.
  • the carriage 42 is tapered with its carriage shoe 421 or carriage arm 43 .
  • the flanks of the carriage shoe 421 or the carriage arm 43 taper towards the edge of the key shank 3 or tend towards one another.
  • this reduces the risk of a finger getting caught in the area between the movable component 4 or the carriage 42 and the key bow 2 or the cover 23.
  • an aesthetic appearance is achieved.
  • FIG. 13 shows a section through the key shank 3 in the area of the slide shoe 421 .
  • the slide shoe 421 is guided by the slide guide 33 .
  • This has two opposite grooves 333 and 334 .
  • the slider shoe 421 encompasses the slider 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 at their opposite sides surfaces with a first flank 331 and a second flank 332. 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 .
  • FIG 14 shows a schematic circuit diagram of the key 1 according to the invention.
  • the components of the key 1 are shown in the rectangle labeled 1 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 locking cylinder electronics 12 and an electrically switchable blocking element 13 for releasing 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)
  • Switches With Compound Operations (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

L'invention concerne une clef (1) comportant une tête de clef (2) et une tige de clef (3) pour actionner un cylindre de serrure (11), comprenant une unité électronique de clef (7) qui transmet un signal d'ouverture codé au cylindre de serrure (11), ainsi qu'un générateur (9) pour alimenter l'unité électronique de clef (7) en énergie électrique. L'invention vise à parvenir à une grande fiabilité tout en assurant simultanément une bonne compatibilité avec l'environnement et une structure durable. A cet effet, la tige de clef (3) présente un coulisseau (42) qu'elle loge déplaçable de manière linéaire le long de la tige de clef (3) et le coulisseau (42) coopère avec le générateur (9), de sorte à entraîner le générateur à produire de l'énergie électrique lorsque la tige de clef (3) est insérée dans le cylindre de serrure (11).
EP21766441.6A 2020-08-20 2021-08-19 Clef dotée d'un générateur dans la tête de clef et d'un coulisseau pour entraîner le générateur Pending EP4200501A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020121876 2020-08-20
DE102021114240.7A DE102021114240A1 (de) 2020-08-20 2021-06-01 Schlüssel mit einem Generator in der Schlüsselreide und einem Schlitten zum Antrieb des Generators
PCT/EP2021/073076 WO2022038239A1 (fr) 2020-08-20 2021-08-19 Clef dotée d'un générateur dans la tête de clef et d'un coulisseau pour entraîner le générateur

Publications (1)

Publication Number Publication Date
EP4200501A1 true EP4200501A1 (fr) 2023-06-28

Family

ID=80112878

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21766441.6A Pending EP4200501A1 (fr) 2020-08-20 2021-08-19 Clef dotée d'un générateur dans la tête de clef et d'un coulisseau pour entraîner le générateur
EP21765905.1A Active EP4200500B1 (fr) 2020-08-20 2021-08-19 Clé dotée d'une tête de clé, d'un arbre de clé et d'un générateur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21765905.1A Active EP4200500B1 (fr) 2020-08-20 2021-08-19 Clé dotée d'une tête de clé, d'un arbre de clé et d'un générateur

Country Status (9)

Country Link
EP (2) EP4200501A1 (fr)
AU (2) AU2021328688B2 (fr)
DE (3) DE102021114241A1 (fr)
DK (1) DK4200500T3 (fr)
ES (1) ES3009487T3 (fr)
FI (1) FI4200500T3 (fr)
PL (1) PL4200500T3 (fr)
SI (1) SI4200500T1 (fr)
WO (2) WO2022038236A1 (fr)

Families Citing this family (2)

* 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
AT527204B1 (de) 2023-07-14 2024-12-15 Evva Sicherheitstechnologie Schließvorrichtung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208818C2 (de) 1982-03-11 1985-11-07 Fa. Aug. Winkhaus, 4404 Telgte Elektrisch entriegelbares Schloß mit lokaler Stromversorgung und piezoelektrischem Blockierriegel
AT385077B (de) * 1983-06-30 1988-02-10 Grundmann Gmbh Geb Schluessel-schlosskombination auf zylinderschlossbasis
US5076081A (en) * 1990-07-06 1991-12-31 Lori Corporation Key for interchangable core lock
FI95113C (fi) * 1994-03-17 1995-12-27 Finnplastro Oy Ajoneuvon virta-avain
DE29618616U1 (de) 1996-10-25 1996-12-19 Zabel Technik GmbH Herstellung und Vertrieb elektromechanischer und elektronischer Bauelemente, 47800 Krefeld Schlüssel, insbesondere für Schließsysteme von Kraftfahrzeugen
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
US7498768B2 (en) 2004-02-04 2009-03-03 Volkswagen Aktiengesellschaft Key for a vehicle
JP2013002139A (ja) * 2011-06-16 2013-01-07 Tokai Rika Co Ltd 電子キー
JP5595438B2 (ja) 2012-03-23 2014-09-24 三菱電機株式会社 電子キー装置
DE202017103124U1 (de) 2017-05-23 2017-06-28 Assa Abloy Sicherheitstechnik Gmbh Schlüssel für ein elektronisch oder elektrisch betätigbares Schließsystem
DE102020115201A1 (de) 2020-06-08 2021-12-09 Dormakaba Austria Gmbh Schlüssel für einen elektromechanischen Schließzylinder

Also Published As

Publication number Publication date
DE102021114239A1 (de) 2022-02-24
AU2021328688A1 (en) 2023-04-13
EP4200500B1 (fr) 2024-12-04
WO2022038239A1 (fr) 2022-02-24
FI4200500T3 (fi) 2025-03-04
AU2021328688B2 (en) 2026-08-13
ES3009487T3 (en) 2025-03-27
DE102021114240A1 (de) 2022-02-24
DK4200500T3 (da) 2025-01-20
SI4200500T1 (sl) 2025-03-31
EP4200500A1 (fr) 2023-06-28
PL4200500T3 (pl) 2025-03-24
WO2022038236A1 (fr) 2022-02-24
AU2021328231B2 (en) 2026-08-13
DE102021114241A1 (de) 2022-02-24
AU2021328231A1 (en) 2023-04-13

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