DE102009005322B4 - Electronic furniture locking unit - Google Patents

Abstract

Electronic furniture closing unit comprising; a cylinder core (2) having a keyway (5) extending along a longitudinal axis A; with at least one mechanically operated tumbler (4); and at least one electromechanically operated tumbler (4 ''); wherein the tumblers (4, 4 '') are adjustable between a blocking position and a release position transverse to the longitudinal axis A, wherein the adjustment axes of the tumblers (4, 4 '') are aligned parallel to an adjustment axis (S); wherein the tumblers (4, 4 '') have central apertures (14, 14 '') in the region of the keyway (5); and wherein the outer dimensions of the cylinder core (2) and the kinematics of the tumblers (4, 4 '') are such that the cylinder core (2) is interchangeable with a conventional mechanically actuated cylinder core; and with an actuator (10) accommodated in the cylinder core, by means of which the at least one electromechanically actuated tumbler (4 '') can be moved into its release position and to which an identifier is assigned; Figs; a key (1) which is insertable through an opening (6) in the keyway (5) and with which the at least one mechanically operated tumbler (4) can be converted into its release order; Figs; Data connection means (16) with which data is exchangeable between the key (1) and the actuator (10); wherein the identification of the actuator (10) can be evaluated by means of an evaluation unit (25) arranged in the key (1) and the actuator (10) can be activated.

Description

The invention relates to an electronic furniture locking unit, the
a cylinder core with a keyway extending along a longitudinal axis A, with at least one electromechanically actuated tumbler and at least one mechanically actuated tumbler, which are adjustable between a blocking position and a release position transversely to the longitudinal axis A and
with an actuator by means of which the at least one electromechanically actuated tumbler can be transferred into its release position;
a key which is insertable through an opening in the keyway and with which the at least one mechanically actuated tumbler is in its release position can be transferred comprises.

Such electronic clamping unit are described in the prior art. The DE 10 2006 012 196 B3 describes a lock cylinder assembly, with acting between a cylinder core and a cylinder housing mechanical locking elements, which additionally comprises an electronic coding and an electromagnetically operated locking device. The electromagnetic locking device is located in the cylinder core. The electronic evaluation unit for coding is located in the cylinder housing. The blocking element of the electromagnetic locking device is arranged in the form of a hollow cylinder around the cylinder core and is held displaceably in the axial direction.

The DE 196 09 400 C2 describes a closing unit with a lock cylinder housing and a rotatably mounted in this cylinder core, in which the transmitter and an electromechanically actuated locking device are arranged in the cylinder core. The power generation unit is located in the key.

Also the EP 401 647 A1 describes a locking device that includes electronic locking components and may additionally include mechanical coding via vertical locking pins. In a key is the power source and a code transmitter and in the lock cylinder, the code reader and the unlocking device is arranged. The unlocking device is designed as an electromagnet, which uses a biasing force to unblock, which is applied by the inserted key. The unlocking device is arranged axially relative to the cylinder core in the rear part of the cylinder housing.

Other locking devices are from the DE 103 29 414 A1 , in the DE 44 39 343 A1 as well as the DE 199 07 654 A1 known, which are intended for use as closing devices for front doors and the like. The closing units mentioned in these documents are equipped with permanently mounted pin cylinders. The actuator required for transferring the electromechanically actuated tumbler into its release position is in the lock cylinders or lock cylinder arrangements described therein either in the cylinder housing (DE 103 29 414 A1 and DE 199 07 654 A1) or entirely outside the lock cylinder (DE 44 39 343 A1) arranged.

Another closing unit is from the US 5,552,777 known. This closing unit also has mechanically actuable closing pins as well as electromagnetically actuated locking means movable perpendicular to the direction of movement of the closing pins. This electromagnetically operable locking pin remains to lock these locking units in a separate bore of a cylinder housing.

From the DE 699 03 872 T2 is a closing unit with a key and an electromechanical cylinder lock with known by rotating a key inserted into a rotary lock cylinder mechanically actuated rotatable locking discs, wherein the rotation of the key on one of the locking discs does not directly mechanically but via a rotational movement of the key with the locking discs connecting, electrically actuated connecting means. The key comprises means for transmitting an electronic code and the lock means for receiving and identifying the code. If the code transmitted by the key is correct, the one locking disc is connected by means of an activated electrical actuating means with the rotary movement of the key. On the other hand, if the code is wrong, the one locking disc will not be connected to the rotary motion of the key due to the non-activated electrical actuating means. Although the key can turn in the lock, unlocking of the lock does not occur due to this one untwisted locking disc.

An actuator for the electromechanical actuation of a tumbler is for example from the DE 103 38 342 A1 known. This has a key with a programmable memory element, which is connected upon insertion of the key in the lock cylinder with an evaluation unit that actuates an electrical latch on positive verification of a security code contained on the memory element.

From the DE 197 51 805 C1 German: v3.espacenet.com/textdoc? DB = EPODOC & ... PN = EP0354305 An electronic ignition lock system, in particular for motor vehicles, is known, having an electronic ignition key for exchanging a coded operating signal in a key receptacle of the vehicle Motor vehicle is introduced, wherein a positive evaluation of a coded operating signal causes a release of a locking device.

From the DE 10 2006 004 629 B4 It is known to use piezo actuators for unlocking.

From the DE 10 2004 007 400 A1 known to use actuating motors in the form of stepper motors for actuating a locking device.

On this basis, the present invention has the object to provide an electronic furniture locking unit that is easy to integrate into existing systems and requires small changes to conventional mechanical locking units. The object is further to propose a method for unlocking such an electronic furniture locking unit.

The solution consists in an electronic furniture locking unit, the
a cylinder core with a keyway extending along a longitudinal axis A, with at least one electromechanically actuated tumbler and at least one mechanically actuated tumbler, which are adjustable between a blocking position and a release position transversely to the longitudinal axis A,
wherein the adjustment axes of the tumblers ( 4 . 4 '' ) are aligned parallel to an adjustment axis (S), wherein the tumblers ( 4 . 4 '' ) central breakthroughs ( 14 . 14 '' ) in the area of the key channel ( 5 ) and wherein the outer dimensions of the cylinder core ( 2 ) and the kinematics of the tumblers ( 4 . 4 '' ) are such that the cylinder core ( 2 ) is interchangeable with a conventional mechanically actuated cylinder core and with an actuator received in the cylinder core, by means of which the at least one electromechanically actuated tumbler can be converted into its release position and which is associated with an identifier;
a key which is insertable through an opening in the keyway and with which the at least one mechanically actuated tumbler in its release position can be transferred;
Data connection means with which data is exchangeable between the key and the actuator,
wherein by means of an evaluation unit arranged in the key, the identifier of the actuator can be evaluated and the actuator can be activated comprises.

The advantage of the electronic locking unit according to the invention is that it can be produced on the basis of a conventional lock cylinder having at least two tumblers with simple means. For this purpose, an actuator must be integrated only in the existing cylinder core such that the actuator can move one of the tumblers in their release position and with the key, in which also a simple evaluation unit can be integrated via preferably a data line can exchange data. In particular, the at least one mechanically actuated tumbler can remain unchanged. For the integration of the actuator in the cylinder core only simple manufacturing steps are required, since only a larger receiving area for the actuator must be provided. Since the outer dimensions of the lock cylinder and the kinematics of the tumblers remain completely unchanged, conventional mechanically operated lock cylinder can be readily replaced with an electronic clamping unit according to the invention. The use of an electronic clamping unit is particularly suitable in the field of furniture, in which it is generally undesirable to have to make changes to the furniture itself in such conversions, as this would entail further costs.

According to a preferred embodiment, two mechanically actuated tumblers are provided. Here, at least the mechanically actuated tumbler or one of the tumblers is acted upon by spring means in its blocking position, wherein the spring means are preferably designed as helical springs and are supported on the one hand against the tumblers and on the other hand against the cylinder core. In addition, the electromechanically actuated tumbler or one of the tumblers can be acted upon by spring means in its blocking position. In an advantageous manner, therefore, there are no adjustments for this region of the cylinder core according to the invention, which must be made starting from the conventional cylinder core. In particular, existing codes of the mechanically actuated tumblers can continue to be used.

Preferably, the actuator limits the keyway on the side facing away from the opening of the keyway side. This is inventively provided that the at least one electromechanically actuated tumbler is disposed on the side facing away from the opening of the keyway side of the actuator. This arrangement ensures that in the case of a violent influence, for example by means of a screwdriver, the electromechanical tumbler is not directly accessible via the keyway. The actuator provides additional protection against unauthorized access to the locked object.

It is provided that the key has a power source and the actuator is powered by power lines. Preferably, a battery or an accumulator is used as the power source. The fact that the power source in the Key is provided, no space needs to be kept ready for this in the cylinder core. Furthermore, in the case where, for example, the battery in its key is empty, the user can easily replace them with a new one.

Preferably, the data connection means and the power lines comprise contact pins, with the contact pins being resiliently seated in the key. It is provided that the contact pins have a travel of, for example 1 to 2 mm. This ensures according to the invention that the electromechanically actuated tumbler can be transferred into its release position, while the at least one mechanically actuated tumbler is still in the blocking position. This is achieved in that upon insertion of the key in the key channel, the resilient contact pins with the actuator in contact before the key has moved the mechanical tumblers in their release position. As soon as the resilient contact pins have contact with the actuator, it is supplied with power and the evaluation unit of the key reads out the identifier of the actuator. If the key is authorized to open the closing unit when the identifier is suitable, the evaluation unit activates the actuator and moves the electromechanically actuated tumbler to the release position. It is envisaged that the duration of this procedure of reading, evaluating, activating and releasing is in the millisecond range. Then, the key is fully inserted into the keyway, the mechanically actuated tumblers are moved to the release position and the clamping unit can be operated. As a result, upon rotation of the cylinder core is achieved in an advantageous manner that pinching the located in the blocking position electromechanically actuated tumbler is prevented relative to a cylinder housing. Pinching this tumbler could happen if the mechanically actuated tumblers are released before the electromechanical tumbler and u. U. consequence, that the actuator can not move the tumbler.

Alternatively it can be provided that is moved by two mechanically actuated tumblers about the same time with the electromechanically actuated tumbler and the second mechanically operated tumbler in connection thereto in the release position.

According to the preferred embodiment, it is provided that the key comprises a microcontroller, which comprises the evaluation unit. It is furthermore provided that the actuator also has a microcontroller. This ensures that, on the one hand, the identifier can be evaluated in the key and, on the other hand, the actuator can also carry out its own operations via the microcontroller. For example, it can be provided that when fully inserted key, whereby the mechanically and electromechanically actuated tumblers were moved to their release positions, after a defined period of time, for example, 2 seconds, the actuator releases the electromechanical tumbler again, so that the spring means this tumbler in the Move locked position.

So that the actuator can move the electromechanically actuated tumbler into the release position, the actuator has a driver which is decoupled from the electromechanically actuated tumbler at least in the blocking position. This decoupling ensures in an advantageous manner that the tumbler and the actuator can not jam each other. This would result in unfavorable cases that the actuator is inhibited in its movement and he can not move the tumbler.

In a first embodiment, it is provided that the actuator is a piezo linear motor. Preferably, a linear motor is used, which applies both high holding forces in the release position of the electromechanically actuated tumbler and has a low power consumption. In addition, such a linear motor can be moved at high speed between the two end positions, while having a very low power consumption.

In the first embodiment, the piezo linear motor moves the electromechanical tumbler into the release position after it has been activated via the evaluation unit of the key for a given authorization for the clamping unit. It is provided that the piezo linear motor holds the guard against the spring force with inserted key for example, 2 seconds in the release position. After this, basically freely definable period of the microcontroller of the piezo linear motor releases this again, so that it moves back to its normal position. The retraction of the tumbler in the locked position via the spring means.

In a second embodiment, it is provided that the actuator is a stepper motor. Again, it is provided that the stepper motor holds the guard against the spring force with inserted key for example, 2 seconds in the release position and the return movement of the tumbler takes place in the locked position on the spring means. Alternatively, it can be provided that the at least one electromechanically actuated tumbler can be transferred to its blocking position with the stepper motor. This would have the advantage that the spring means could be omitted for this tumbler.

In concrete terms, it is provided that the stepper motor acts on the electromechanically actuated tumbler via a threaded spindle. Advantageously, this high holding forces can be realized on the tumbler over the entire adjustment of the stepper motor.

• – Auslesen der Kennung des Aktuators (10) mittels der Auswerteeinheit des Schlüssels (1) über die Datenverbindungsmittel (16);
• – Auswerten der Kennung mittels der Auswerteeinheit;
• – Aktivieren des Aktuators (10) beim Vorliegen einer Berechtigung für die Kennung und Überführen der zumindest einen elektromechanisch betätigten Zuhaltung (4'') in die Freigabestellung mittels des Aktuators (10);
• – Überführen der zumindest einen mechanisch betätigten Zuhaltung (4) in die Freigabestellung mittels des Schlüssels (1) nach dem Auswerten der Kennung und, sofern hierfür eine Berechtigung vorliegt, nach dem Freigeben der zumindest einen elektromechanisch betätigten Zuhaltung (4'').

The above object is further achieved by a method for unlocking an electronic clamping unit according to claim 1 comprising the steps:

• - reading the identifier of the actuator ( 10 ) by means of the evaluation unit of the key ( 1 ) via the data connection means ( 16 );
• - Evaluation of the identifier by means of the evaluation unit;
• - Activation of the actuator ( 10 ) in the presence of an authorization for the identifier and transferring the at least one electromechanically actuated tumbler ( 4 '' ) in the release position by means of the actuator ( 10 );
• Transferring the at least one mechanically actuated tumbler ( 4 ) in the release position by means of the key ( 1 ) after the evaluation of the identifier and, if there is an authorization, after releasing the at least one electromechanically actuated tumbler ( 4 '' ).

Advantageously, this sequence of the method steps is achieved that when inserting the key in the keyway at the present authorization first the electromechanically actuated tumbler is moved to its release position and only with subsequent full insertion of the key and the mechanically actuated tumblers are moved to the release position , In the case in which an authorization for the identifier of the actuator is not present, there is no activation of the actuator, so that the electromechanically actuated tumbler remains in the locked position. Now, when the key is fully inserted into the keyway, the mechanically operated tumblers are moved to the release position. In this case, the locked electromechanically actuated tumbler ensures that the entire electronic clamping unit is locked against actuation, that is, against rotation.

A preferred embodiment of the invention is illustrated in the drawings and will be described below. Herein shows

1 an electronic clamping unit according to the invention in an exploded view;

2 an electronic locking unit according to the invention with the key removed in a perspective view;

• a) mit abgezogenem Schlüssel mit dem Zylinderkern im Längsschnitt und
• b) mit eingestecktem Schlüssel im Längsschnitt.

3 an electronic clamping unit according to the invention

• a) with removed key with the cylinder core in longitudinal section and
• b) with inserted key in longitudinal section.

The 1 to 3b show the electronic locking device according to the invention with a key 1 and a cylinder core 2 in different representations and are described together below.

The cylinder core 2 has a cylinder core housing 3 on, over the cylinder core 2 can be rotatably received in a bore of a cylinder housing, not shown, about a longitudinal axis A. About the cylinder housing, the electronic clamping unit can be secured in a known manner to a furniture part.

The cylinder core housing 3 points to a front page 22 an opening 6 on top of that the key 1 in a key channel 5 in the cylinder core 2 can be introduced. The key channel 5 extends along the longitudinal axis A.

The key 1 consists of two mutually set key housing shells 20 . 20 ' , between which two largely symmetrically executed and also against each other set Schlüsselschaf halves 19 . 19 ' are held and on the one hand from the key housing shells 20 . 20 ' protrude. In the key sheep halves 19 . 19 ' are between insulation layers 18 . 18 ' two power lines 15 . 15 ' and a data line 16 added. The wires 15 . 15 ' . 16 have resilient contact pins 17 . 17 ' . 17 '' On, slightly recessed to a front 21 of the keychild halves set against each other 19 . 19 ' are held. The direction of the spring movement of the contact pins 17 . 17 ' . 17 '' runs along the longitudinal axis A. As a spring travel, for example 1 to 2 mm can be provided.

Furthermore, in the juxtaposed key housing shells 20 . 20 ' a microcontroller 25 comprising an evaluation unit for the identification of the electronic locking unit, and a power source, for example in the form of a battery 26 , added. The connection of the microcontroller 25 or the battery 26 to the wires 15 . 15 ' . 16 is not shown for simplicity.

The cylinder core housing 3 has in the direction of the longitudinal axis A offset guide recesses 13 . 13 ' . 13 '' on, which extend transversely to the longitudinal axis A along a control axis S and the cylinder core housing 3 completely penetrate. In the leadership recesses 13 . 13 ' . 13 '' are tumblers 4 . 4 ' . 4 '' taken along the adjusting axis S between one in the 1 and 3a shown blocking position and one in the 2 and 3b shown release position are guided displaceably. Every tumbler 4 . 4 ' . 4 '' is by means of a coil spring 7 . 7 ' . 7 '' acted upon to take the locking position, wherein the coil springs 7 . 7 ' . 7 '' on the one hand against a lead 8th the respective tumbler 7 and on the other hand against the cylinder core housing 3 is supported. Part of the tumbler 4 . 4 ' . 4 '' is acted upon in a direction of the adjusting axis S to the blocking position and a second part of the tumbler 4 . 4 ' . 4 '' is acted upon in the opposite direction of the adjusting axis S to the blocking position.

In another recess 12 in the cylinder core housing 3 is a piezo linear motor 10 added. The recess 12 is located, from the opening 6 from between the second tumbler 4 ' and the third tumbler 4 '' , The piezo linear motor 10 engages with a movable driver 11 in the direction of the longitudinal axis A in a central opening 14 '' the tumbler 4 '' one. The piezo linear motor 10 includes a further microcontroller, not shown, in which one through the microcontroller 26 of the key 1 over the data line 16 readable identifier is, for example, consists of a multi-digit code.

Out 1 and 3a it can be seen that the driver 11 from the flanks of the breakthrough 14 '' mechanically decoupled when the tumbler 4 '' in the locked position. Will the piezo linear motor 10 activated, he actuates the driver 11 along the axis S. After the driver 11 due to decoupling from the flanks of the breakthrough 14 '' has overcome a certain free path, he attacks at a contact surface 23 the breakthrough 14 '' and moves the tumbler 4 '' in the direction of the control axis S in the release position, thus the electromechanically actuated tumbler 4 '' acts.

Furthermore, also have the tumblers 4 . 4 ' central breakthroughs 14 . 14 ' on that in the area of the key channel 5 are arranged. If the key 1 in the key channel 5 is introduced, the keychain halves attack 19 . 19 ' with unspecified control tracks in the breakthroughs 14 . 14 ' the tumblers 4 . 4 ' and move the tumblers 4 . 4 ' against the force of the coil springs 7 . 7 ' in the release position, thus as a mechanically operated tumblers 4 . 4 ' act. The breakthroughs 14 . 14 ' may have on their flanks several shelves, not shown, so that on these shelves of the mechanically actuated tumblers 4 . 4 ' encodings can be introduced into the electronic clamping unit in unspecified manner.

In the present embodiment, the width and the height of the aperture 14 '' the tumbler 4 '' smaller than the width and the height of the breakthroughs 14 . 14 ' the tumblers 4 . 4 ' , With appropriate design of the driver 11 of the piezo linear motor 10 is an equal dimensioning of all breakthroughs 14 . 14 ' . 14 '' in the tumblers 4 . 4 ' . 4 '' also possible.

From the 2 and 3a it can be seen that the tumblers 4 . 4 . 4 '' in the blocking position radially outward over an outer peripheral surface 9 of the cylinder core housing 3 protrude. In the locked position, the tumblers engage 4 . 4 ' . 4 '' in grooves within the bore of the cylinder housing, not shown. The cylinder core 2 can in the locked position of the tumblers 4 . 4 ' . 4 '' thus not be rotated within the cylinder housing.

3a indicates that the piezo linear motor 10 on his the opening 6 of the key channel 5 facing side electrical contacts 27 . 27 ' . 27 '' has, with which the contact pins 17 . 17 ' . 17 '' of the key 1 come in contact before the key 1 completely in the key channel 5 is introduced. As soon as this contact has been established, the previously described procedure reads out the identification, evaluation, activation and release of the electromechanically actuated tumbler 4 '' go through, assuming that the key 1 has the appropriate authorization for the respective electronic clamping unit. Only when the key 1 then completely into the key channel 5 of the cylinder core 2 is plugged in, like this in 3b shown are also the mechanically operated tumblers 4 . 4 ' moved to their release position. Since during this last piece of insertion movement of the key 1 the contact pins 17 . 17 ' . 17 '' already in contact with the contacts 27 . 27 ' . 27 '' are, give the contact pins 17 . 17 ' . 17 '' in their recordings springy after.

Out 3b it can be seen that the tumblers 4 . 4 ' . 4 '' in the release position completely in the guide recesses 13 . 13 ' . 13 '' are received, wherein in the illustrated embodiment, the tumblers 4 . 4 ' . 4 '' flush with the outer peripheral surface 9 of the cylinder core housing 3 to lock. The cylinder core 2 can in the release position of the tumblers 4 . 4 ' . 4 '' thus be rotated within the cylinder housing, not shown.

In another embodiment, not shown, a stepper motor is used as the actuator, which is characterized in that the driver, which engages in the breakthrough of the electromechanically actuated tumbler, is arranged on a threaded spindle of the stepping motor. The threaded spindle is aligned in the direction of the adjusting axis. By the stepper motor sets the threaded spindle in rotation and rotation of the driver is prevented by engaging in the breakthrough, however, a translational movement of the driver is generated in the direction of the adjusting axis, so that the driver can move the electromechanical guard against the coil spring in the release position ,

LIST OF REFERENCE NUMBERS

1

key

2

cylinder core

3

Cylinder core housing

4, 4 ', 4' '

tumbler

5

keyway

6

opening

7, 7 ', 7' '

coil spring

8th

head Start

9

Outer circumferential surface

10

Actuator, piezo linear motor

11

takeaway

12

recess

13, 13 ', 13' '

guide recess

14, 14 ', 14' '

breakthrough

15, 15 '

power line

16

data line

17, 17 ', 17' '

contact pins

18, 18 '

insulation layer

19, 19 '

Key shank half

20, 20 '

Key housing half

21

front

22

front

23

contact area

25

microcontroller

26

battery

27, 27 ', 27' '

contacts

S

adjusting axis

A

longitudinal axis

Claims (16)

Electronic furniture closing unit, comprising - a cylinder core ( 2 ) with a keyway extending along a longitudinal axis A ( 5 ), - with at least one mechanically actuated tumbler ( 4 ) - and at least one electromechanically actuated tumbler ( 4 '' ), - the tumblers ( 4 . 4 '' ) between a blocking position and a release position transversely to the longitudinal axis A are adjustable, - wherein the adjustment axes of the tumblers ( 4 . 4 '' ) are aligned parallel to an adjustment axis (S), - wherein the tumblers ( 4 . 4 '' ) central breakthroughs ( 14 . 14 '' ) in the area of the key channel ( 5 ) - and wherein the outer dimensions of the cylinder core ( 2 ) and the kinematics of the tumblers ( 4 . 4 '' ) are such that the cylinder core ( 2 ) is interchangeable with a conventional mechanically actuated cylinder core, - and with an actuator received in the cylinder core ( 10 ), by means of which the at least one electromechanically actuated tumbler ( 4 '' ) can be converted into its release position and to which an identifier is assigned; - a key ( 1 ) through an opening ( 6 ) into the key channel ( 5 ) is insertable and with which the at least one mechanically actuated tumbler ( 4 ) can be converted into its release order; - data connection means ( 16 ), with which data between the key ( 1 ) and the actuator ( 10 ) are interchangeable, - whereby by means of one in the key ( 1 ) arranged evaluation unit ( 25 ) the identifier of the actuator ( 10 ) and the actuator ( 10 ) is activated. Electronic furniture closing unit according to claim 1, characterized in that two mechanically actuated tumblers ( 4 . 4 ' ) are provided. Electronic furniture closing unit according to one of claims 1 or 2, characterized in that the at least one mechanically actuated tumbler ( 4 ) by means of spring means ( 7 ) is acted upon in its blocking position. Electronic furniture closing unit according to one of claims 1 to 3, characterized in that the actuator ( 10 ) the key channel ( 5 ) on the from the opening ( 6 ) of the key channel ( 5 ) facing away from the side. Electronic furniture closing unit according to one of claims 1 to 4, characterized in that the at least one electromechanically actuated tumbler ( 4 '' ) on the from the opening ( 6 ) of the key channel ( 5 ) facing away from the actuator ( 10 ) is arranged. Electronic furniture locking unit according to one of claims 1 to 5, characterized in that the key ( 1 ) a power source ( 26 ) and the actuator ( 10 ) via power lines ( 15 . 15 ' ) is supplied with electricity. Electronic furniture locking unit according to one of claims 1 to 6, characterized in that the data connection means ( 16 ) and the power lines ( 15 . 15 ' ) Contact pins ( 17 . 17 ' . 17 '' ). Electronic furniture locking unit according to claim 7, characterized in that the contact pins ( 17 . 17 ' . 17 '' ) in the key ( 1 ) resiliently. Electronic furniture locking unit according to one of claims 1 to 8, characterized in that the data connection means ( 16 ) one Allow data exchange before the at least one mechanically actuated tumbler ( 4 ) is transferred to the release position. Electronic furniture locking unit according to one of claims 1 to 9, characterized in that the key ( 1 ) comprises a microcontroller comprising the evaluation unit. Electronic furniture closing unit according to one of claims 1 to 10, characterized in that the actuator ( 10 ) a driver ( 11 ), which depends on the electromechanically actuated tumbler ( 4 '' ) is mechanically decoupled at least in the blocking position. Electronic furniture closing unit according to one of claims 1 to 11, characterized in that it is in the actuator ( 10 ) is a piezo linear motor. Electronic furniture closing unit according to one of claims 1 to 11, characterized in that it is in the actuator ( 10 ) is a stepper motor Electronic furniture closing unit according to claim 13, characterized in that with the stepper motor ( 10 ) the at least one electromechanically actuated tumbler ( 4 '' ) Is in its locked position can be transferred Electronic furniture closing unit according to one of claims 13 or 14, characterized in that the stepping motor ( 10 ) via a threaded spindle to the electromechanically actuated tumbler ( 4 '' ) acts A method of unlocking an electronic furniture locking unit according to claim 1 comprising the steps of: - reading the identifier of the actuator ( 10 ) by means of the evaluation unit of the key ( 1 ) via the data connection means ( 16 ); - Evaluation of the identifier by means of the evaluation unit; - Activation of the actuator ( 10 ) in the presence of an authorization for the identifier and transferring the at least one electromechanically actuated tumbler ( 4 '' ) in the release position by means of the actuator ( 10 ); Transferring the at least one mechanically actuated tumbler ( 4 ) in the release position by means of the key ( 1 ) after the evaluation of the identifier and, if there is an authorization, after releasing the at least one electromechanically actuated tumbler ( 4 '' ).

Images