EP3498945A1 - Key for a mechatronic closing device and closing system - Google Patents

Abstract

A key (10) for a mechatronic locking device (80) comprising a key housing (12), a key shank (16) extending therefrom, with a locking code (18) for actuating tumblers (92) of the locking device (80), wherein the housing (12) an electronic controller (20) and an actuator (22) are associated, with respect to mechatronischer closing devices to reduce maintenance and increase the weather resistance with simple structural means, designed and further developed such that the Lock coding (18) is set up such that it can assume a release position and a non-release position, wherein the locking coding (18) is coupled to the actuator (22) via a displaceable drive element (24), so that upon detection of a positive authentication by the controller (20) the closing code (18) by driving the actuator (22) from the non A locking system (100) with such a key (10) and an associated mechatronic locking device (80) is indicated.

Description

The invention relates to a key for a mechatronic locking device, comprising a housing forming a crayon, a key shaft extending therefrom with a locking coding for actuating tumblers of the locking device, wherein the housing is associated with an electronic control and an actuator. In addition, the invention relates to a locking system with such a key and an associated mechatronic locking device.

Keys for mechatronic locking devices and corresponding locking systems are known from the prior art and commercially available, for example. Under the name "Blue Chip" from Winkhaus or under the name "Verso Cliq" Assa Abloy.

Mechatronic lock cylinders are equipped with electronics and often also with batteries. Such lock cylinders must be protected against environmental influences such as moisture, heat, cold or aggressive media. For this purpose, such lock cylinders are, for example, sealed with seals and / or potting compound. In addition to the complex construction is problematic that the battery change is complex and often requires an expansion of the lock cylinder. Due to the complex construction, the production costs are comparatively high in such lock cylinders, moreover, such lock cylinder for outdoor use are only partially suitable. Also electronic and mechanical disturbances can not be excluded.

A mechatronic key is also in DE 10 2007 063 076 A1 described, which supports an operator in a closing operation by the key shaft can be rotated by motor drive relative to a moving part (handle).

The invention is based on the object with simple design means for mechatronic Closing devices to reduce maintenance and increase the weather resistance.

The invention solves the object mentioned by a key with the features of claim 1. Thereafter, the key is characterized in that the closing coding is set up so that they occupy a release position (release profile of the closing coding) and a Nichtfreigabestellung (Nichtfreigabeprofil the closing coding) can, wherein the closing coding is coupled via a (relative to the housing) movable drive element to the actuator, so that upon detection of a positive authentication by the controller, the closing coding by driving the actuator (by displacement of the drive element) from the non-release position in the release position can be brought or brought.

With the locking coding in the release position, the tumblers of a lock cylinder of an associated mechatronic locking device can also be brought into the release position by the key, so that the lock cylinder is actuated, i. the lock core can be rotated relative to the cylinder housing. "Associated" means that a key can be fitted in a lock cylinder so that the lock cylinder can be operated by the key.

With the locking coding in Nichtfreigabestellung the lock cylinder for lack of releasing alignment of the Tumblers are not operated by the key. A release is then not possible. The Nichtfreigabestellung the closing coding may be a starting position or a rest position of the Schließcodierung.

The proposed embodiment has the advantage that the lock cylinder for the desired functionality requires no electronic components and can be configured as a conventional lock cylinder. The electronic components such as control (electronics), energy storage (battery), actuator and / or electronic authentication are instead arranged in the key. As a result, the lock cylinder is free of electronic components and free of a battery storage and must not be energized. The release functions are in the key (two-stage release). This allows a structurally simple design of the lock cylinder and reduces its maintenance.

A two-stage release may, for example, be designed in such a way that in a first step the authentication takes place via an RFID element (active RFID tag) in the key. In the lock cylinder can be arranged as a counterpart also an RFID element (passive RFID tag). After authentication has taken place, in a second step, a displaceable drive element (for example a key half) with coupled or integrated elements for actuating tumblers and for releasing the lock cylinder can be moved by a motor.

In the context of a preferred embodiment, the locking coding can have profiled elements mounted in the key shank, whereby the profiled elements can be displaced by displacing the drive element (likewise). In other words, the displaceable profile elements in their entirety form the locking coding. Hereby an adjustable locking coding is created with simple structural means, which can be operated by the key tumblers of a conventional lock cylinder. Depending on the displacement of the profile elements, the locking coding can be brought into the release position or into the non-release position. Specifically, the profile elements may be formed as in passages of the key shank profiled pins. The profile elements may have a cylindrical, for example. Circular cylindrical shape. The profile elements may have an individualized length for producing a variety of possible combinations. The passages in the key shank can be designed, for example, as corresponding holes. The passages are arranged in particular orthogonal to the longitudinal direction of the key shaft.

In concrete terms, the profile elements can each have a shank portion and a head portion extended relative to the shank portion (outwards, eg radially), in particular (with respect to the key shank). This creates a structurally simple and stable design of the profile elements. The shank portion can be used to guide the Serve profile element in the key shank. In this case, a profile element over the shank portion reach the end with a core pin of a tumbler in contact. Due to the extended head portion from falling out of the profile element can be prevented. For this purpose, the head section with a passage, in particular by (radially) inside, tapering paragraph interact.

Conveniently, the section of the drive element facing the profile elements can be arranged in a channel formed in the key shank and preferably closed outwards. This ensures a secure, protected against manipulation and / or environmental influences arrangement of the relevant section of the drive element is realized. The channel can also serve to guide the drive element. The channel is oriented in particular in the longitudinal direction of the key shaft. The passages for the profile elements open in each case with its inner end in this channel and with its outer end to the outside.

In the context of a preferred embodiment, the profile elements can be biased inwards by means of springs (compression springs) with respect to the key shank. In other words, the springs pull the profile elements into the interior of the key shaft. As a result, the profile elements in Nichtfreigabestellung (eg, home or rest position) are drawn into the key shank and thus protected from environmental influences and / or manipulation. Even if the key in the hand of a Unauthorized should arrive, this could not easily determine the release order or the release profile.

Advantageously, the drive element in its profile elements facing the end region alternately contact portions and recesses. As a result, a structurally simple design of the drive element and a simple actuation of the profile elements are created. By individual design of the contact portions and the recesses (each dimensions and / or position) can be realized in a simple manner a variety of possible combinations. Independently of this, the profile elements can also have an individualized length, as described above.

Specifically, the profile elements in the non-release position, in particular with their head portion, in each case rest in or on the recesses and / or the profile elements can rest in the release position, in particular with the head portion, respectively at the contact portions. As a result, the locking coding can be easily moved from the non-release position to the release position or vice versa.

Conveniently, an RFID element interacting with the controller, in particular an active RFID tag, may be arranged on or in the housing, in particular on the side of the housing from which the key shank is made extends. The RFID element interacts with the controller for authentication purposes. By configuring the RFID element as an active RFID tag, it can send a signal (request), possibly supplying energy to a further RFID element located within reach and possibly receiving a response. In the case of existing authentication, the control can bring about the closing coding in the release position.

Advantageously, a power supply (battery or rechargeable battery, for example a button cell), in particular a chemical one, can be provided for the power supply of the electronic key components independent of the mains. As a result, the key can be operated independently of the mains without supplying external electrical energy. A change of an energy storage can be done in a simple manner, for example. By a removable housing section on the key crop.

Specifically, the actuator may be coupled by means of a gear with the displaceable drive element and / or the actuator may be formed as an electric motor. This creates a structurally simple, space-saving and sufficiently strong drive. Specifically, the transmission may be formed as a worm gear, in particular with a worm shaft to the actuator or electric motor, a mounted on or in the housing gear or worm wheel and / or a rack section on the drive element.

Conveniently, the displaceable drive element can be designed as a slide. As a result, a structurally simple and stable embodiment of the drive element is realized, since the slide is rod-shaped and only (translationally) relative to the housing or the key shank is moved.

The object mentioned above is also achieved by a locking system with the features of the independent claim. This locking system is in particular a combination consisting of the key as described above and an associated lock cylinder. With regard to the achievable advantages, reference is made to the statements in connection with the key described above.

The RFID element arranged on or in the lock cylinder can be designed as a passive RFID tag. This does not require its own energy source and can be powered by the RFID element of the key (active RFID tag). As a result, the maintenance of the lock cylinder is considerably reduced, since no replacement of an energy storage must be done.

Advantageously, the RFID element can be arranged on the side of the key insertion opening of the lock cylinder, on or in the cylinder housing of the lock cylinder). This contributes to a good communication connection between the key-side RFID element and the cylinder-side RFID element. In addition, this arrangement can be used to establish a comparatively earlier communication setup between the RFID elements in relation to the insertion process of the key.

The lock cylinder may have a cylinder housing and a cylinder core rotatable in the cylinder housing. In addition, the lock cylinder may have several tumblers, for example. Five tumblers. Each tumbler may have a core pin, a housing pin, a spring and / or a plug for closing the housing bore on the cylinder housing to the outside. The lock cylinder can be designed in particular as a profile cylinder of German or European design.

Fig.1

ein Schlüssel für eine mechatronische Schließvorrichtung im nicht eingesteckten Zustand in einer geschnittenen Seitenansicht;

Fig.2

den Schlüssel aus Fig.1 eingesteckt in die Schließvorrichtung mit Schließcodierung in Nichtfreigabestellung in einer geschnittenen Seitenansicht;

Fig.3

einen vergrößerten Ausschnitt aus Fig. 2 (Schließcodierung in Nichtfreigabestellung);

Fig.4

den Schlüssel aus Fig.1 eingesteckt in die Schließvorrichtung mit Schließcodierung in Freigabestellung in einer geschnittenen Seitenansicht; und

Fig.5

einen vergrößerten Ausschnitt aus Fig.4 (Schließcodierung in Freigabestellung).

The invention will be explained in more detail below with reference to the figures, wherein identical or functionally identical elements are optionally provided only once with reference numerals. Show it:

Fig.1

a key for a mechatronic locking device in the uninstalled state in a sectional side view;

Fig.2

the key out Fig.1 inserted into the closing device with closing coding in non-release position in a sectional side view;

Figure 3

an enlarged section Fig. 2 (Closing coding in non-release order);

Figure 4

the key out Fig.1 inserted into the closing device with closing coding in the release position in a sectional side view; and

Figure 5

an enlarged section Figure 4 (Closing coding in release position).

FIG. 1 shows a key for a mechatronic locking device 80, which is generally designated by the reference numeral 10. In addition shows FIG. 1 a locking system with such a key 10 and an associated mechatronic locking device 80, wherein the locking system is designated overall by the reference numeral 100.

The key 10 has a housing 12 forming a key crayon and a key shank 16 extending therefrom along a longitudinal direction 14. The key shaft 16 has a locking coding 18 for actuating tumblers 92 of the mechatronic locking device 80. The housing 12 is associated with an electronic controller 20 and an actuator 22, which are arranged in particular in the housing 12.

The closing code 18 is set up in such a way that it has a release position (see FIG FIGS. 4 and 5 ) and a non-release order (see Figure 1 to 3 ) can take. The closing code 18 is a displaceable Drive element 24, which can be displaced relative to the housing 12 along the longitudinal direction 14, coupled to the actuator 22.

Upon detection / recognition of a positive authentication by the controller 20, the closing code 18 is shifted by driving the actuator 22 (whereby the driving member 24 is displaced by the distance "s" toward the free end of the key shaft 16; FIG. 1 ) of the non-release order (see Figure 1 to 3 ) into the release position (see FIG. 4 and 5 ).

The locking coding 18 has profiled elements 26 mounted in the key shank 16, wherein the profiled elements 26 can likewise be displaced by displacing the drive element 24. The displaceable profile elements 26 in their entirety form the locking coding 18. The profile elements 26 are designed as profile rails 30 mounted in passages 28. The passages 28 are oriented orthogonal to the longitudinal direction 14 of the key shaft 16.

The profile elements 26 each have a cylindrical shaft portion 32 and a relative to the shaft portion 32 radially expanded and relative to the key shank 16 inside head portion 34 (see FIG. 3 ). The shank portion 32 serves in each case for guiding the profile element 26 in the passage 28. The profile elements 26 each pass over the free end of the Shank portion 32 with a core pin 94 of the locking device 80 in contact (see FIG. 5 ).

The profile elements 26 facing portion 36 of the drive member 24 is disposed in a formed in the key shank 16 channel 38 (see FIG. 3 ). The channel 38 also serves to guide the portion 36 of the drive member 24 and is closed to the outside. The passages 28 for the profile elements 26 open with their inner end in the channel 38 and with its outer end to the outside. The channel 38 is formed in its length such that the facing portion 36 can be displaced by the distance "s" to the free end of the key shaft back (release position of the closing code 18).

The profile elements 26 are biased by springs 40 (compression springs) with respect to the key shank 12 inwardly. In other words, the springs 40 pull the profile elements 26 into the interior of the key shaft 16. In non-release position of the locking coding 18, the profile elements 26 are thus drawn into the key shaft 16.

The drive element 24 has alternately contact sections 42 and recesses 44 in its section 36 facing the section 36 and the end region 36 facing. The profile elements 26 are in the non-release position with the head portion 34 in the recesses 44 (see FIGS. 1 to 3 ). In the Release position are the profile elements 26 each with the head portion 34 at the contact portions 42 (see FIG. 4 and 5 ).

On or in the housing 12 of the key 10, a cooperating with the controller 20 RFID element 46 (active RFID tag) is arranged. In this case, the RFID element is located on the side of the housing 12, from which the key shank 16 extends. For the network-independent power supply of the electronic key components (controller 20, actuator 22 and RFID element 46), a chemical energy store 48 in the form of a battery (button cell) is provided.

The actuator 22 is coupled to the displaceable drive element 24 by means of a gear 50. The actuator 22 may be formed as an electric motor. The transmission 50 is designed as a worm gear. On the actuator or electric motor 22, a worm shaft 52 is arranged, which is in contact with a gear or worm wheel 54 mounted on or in the housing 12. The gear or worm wheel 54 is in contact with a toothed rack section 56 formed on the drive element 24. The drive element 24 is designed as a slide.

The locking system 100 has a key 10 as described above. In addition, the locking system 100 has an associated mechatronic locking device 80 (see FIG. 1 ). The locking device 80 has a mechanical lock cylinder 82 and an RFID element 84 (passive RFID tag). The RFID element 84 is arranged on the side of the key insertion opening 86 of the lock cylinder 82.

The mechanical lock cylinder 82 has a cylinder housing 88 and a cylinder housing 90 rotatably mounted in the cylinder housing 88. The lock cylinder 82 has a plurality of tumblers 92, namely five tumblers 92. Each tumbler 92 has a core pin 94, a housing pin 96, a spring 97 and a plug 98 for closing the housing bore 99 for the tumblers.

• Befindet sich der Schlüssel 10 in der uneingesteckten Stellung (siehe Figur 1), ist die Schließcodierung 18 des Schlüssels 10 in Nichtfreigabestellung (Profilelemente 26 liegen mit deren Kopfabschnitt 34 in den Ausnehmungen 44 des Antriebselements 24 an). An der elektronischen Schließvorrichtung 80 befinden sich die Zuhaltungen 92 des mechanischen Schließzylinders 82 ebenfalls in Nichtfreigabestellung.

The key 10 or the locking system 100 works as follows:

• If the key 10 is in the unplugged position (see FIG. 1 ), the locking coding 18 of the key 10 is in non-release position (profile elements 26 abut with their head portion 34 in the recesses 44 of the drive element 24). At the electronic locking device 80, the tumblers 92 of the mechanical lock cylinder 82 are also in Nichtfreigabestellung.

When the key 10 is inserted into the keyway of the lock cylinder 82 via the key insertion opening 86, the tumblers 92 come into contact with the key shank 16 (see FIG FIG. 2 and 3 ). However, the tumblers 92 are thereby not brought into the release position (parting plane 95 between core pins 94 and Housing pins 96 is not on the lateral surface of the cylinder core 90), since this requires authentication.

Shortly after the insertion of the key 10, an authentication check takes place, which, coordinated by the electronic control 20, via the RFID element 46 of the key 10 (active RFID tag 46) and the RFID element 84 of the locking device 80 (passive RFID Element 84). If the authentication test is positive (positive authentication), ie if RFID element 46 and RFID element 84 and thus also the key 10 and the locking device 80 match each other, the electronic control 20 activates the actuator or electric motor 22, so that it over the transmission 50 displaces the drive element 24 in the direction of the free end of the key shaft 16 (see distance "s" in FIG Fig.1 ).

As a result of this displacement, the profile elements 26 come into contact with the contact sections 42 of the drive element 24 via their head section 34, so that the profile elements 26 project with their shaft section 32 out of the outer end of the passages 28 (closing coding 18 in the release position; FIG. 4 and 5 ). The profile elements 26 actuate the tumblers 92 of the lock cylinder 82, to which the shaft portions 32 are each in contact with a core pin 94.

The tumblers 92 are actuated such that the parting plane 95 between the core pin 94 and housing pin 96th each located on the lateral surface of the cylinder core 90. The cylinder core 90 can thus also be rotated by turning the key 10, so that the locking device 80 can be actuated and a release of the respective closing point is possible.

In summary, the cylinder for the desired functionality (apart from the RFID element 84) requires no electronic components and can be designed as a conventional lock cylinder (profile cylinder). All functions such as electronics, batteries, actuator, digital authentication, are in the key. As a result, the cylinder is free of electronics and battery and must not be energized. All release functionalities are in the key.

There is a two-stage release. In a first step, an authentication takes place via an active RFID tag on or in the key and a passive RFID tag on or in the lock cylinder. In a second step, following an authentication, a motorized process of the drive element (key half) with integrated elements (profile elements) takes place to release the cylinder.

Claims (13)

A key (10) for a mechatronic locking device (80) comprising a keychain housing (12) having a key shank (16) extending therefrom and a locking coding (18) for actuating tumblers (92) of the locking device (80) the housing (12) an electronic controller (20) and an actuator (22) are assigned, characterized in that the closing coding (18) is arranged such that it can assume a release position and a non-release position, wherein the closing coding (18) via a displaceable drive element (24) is coupled to the actuator (22), so that upon detection of a positive authentication by the controller (20), the closing coding (18) by driving the actuator (22) can be brought from the non-release position to the release position. Key (10) according to claim 1, characterized in that the locking coding (18) in the key shank (16) mounted profile elements (26), wherein the profile elements (26) by displacement of the drive element (24) are displaceable. Key (10) according to claim 2, characterized in that the profile elements (26) each have a shank portion (32) and with respect to the shank portion (32) extended head portion (34). Key (10) according to one of the preceding claims, characterized in that the profile elements (26) facing portion (36) of the drive element (24) in a key shaft (16) formed in the channel (38) is arranged. A key (10) according to any one of claims 2 to 4, characterized in that the profile elements (26) are biased inwardly by means of springs (40) with respect to the key shank (16). Key (10) according to any one of the preceding claims, characterized in that the drive element (24) in its profile elements (26) facing the end region (36) alternately contact portions (42) and recesses (44). Key (10) according to claim 6, characterized in that the profile elements (26) in the non-release position, in particular with their head portion (34), in each case in the recesses (44) and / or that the profile elements (26) in the release position, in particular with its head portion (34), in each case abut the contact portions (42). Key (10) according to any one of the preceding claims, characterized in that on or in the housing (12) with the controller (20) cooperating RFID element (46) is arranged, in particular on the side of the housing (12), of the out of the key shaft (16) extends. Key (10) according to any one of the preceding claims, characterized in that the network-independent power supply of the electronic key components (20, 22, 46) a, in particular chemical, energy storage (48) is provided. Key (10) according to one of the preceding claims, characterized in that the actuator (22) by means of a transmission (50) with the displaceable drive element (24) is coupled and / or that the actuator (22) is designed as an electric motor. Key (10) according to one of the preceding claims, characterized in that the displaceable drive element (24) is designed as a slide. Locking system (100) with a key (10) according to one of the preceding claims and an associated mechatronic locking device (80), characterized in that the locking device (80) has a mechanical lock cylinder (82) and an RFID element (84). Locking system according to claim 12, characterized in that the RFID element (84) on the side of the key insertion opening (86) of the lock cylinder (82) is arranged.

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