DE102006012196B3 - Lock cylinder assembly with mechanically coded key has cylinder core in hollow cylindrical locking element slidable so that its locking web intersects key guide channel of core - Google Patents

Abstract

The lock cylinder assembly has a cylinder housing (2) and rotatable core (1) with several mechanical tumbler pins acting between same. The cylinder core is enclosed by a hollow cylindrical locking element (4) with locking web (5). The locking element is displaceable and lockable on the longitudinal axis of the core whilst the locking web intersects the key supply channel of the core. The locking element has a detent nose at the end to engage in a complementary recess in the core to secure this against rotation when locked. The locking element is blocked by means of an electro mechanical locking mechanism with electronic coding between key and cylinder. The electro mechanical locking mechanism can be a lift magnet or piezo actuator.

Description

The Invention relates to a lock cylinder arrangement, comprising a lock cylinder housing and a rotatably mounted in this cylinder core with a lot of acting between core and housing mechanical locking elements in the form of tumbler pins, according to the preamble of claim 1

From the DE 196 09 400 C2 a lock cylinder for a lock is already known, consisting of a lock cylinder housing and a rotatably mounted in this cylinder core, in which an evaluation for an electronic coding of a key, a device for transmitting the code from the key to the transmitter and an electromechanical locking device between the cylinder core and lock cylinder housing acts, is arranged in the cylinder core and wherein the power generation unit is located in the key and / or in the lock cylinder housing or cylinder core.

According to the teaching there, a key feature is the accommodation of the cylinder electronics for communication with the key in the cylinder core and the placement of the electro-mechanical locking also in the cylinder core. The cylinder housing should only be used as a stator and counter bearing for the cylinder lock. The electronic code recognition of the key / code carrier is therefore completely located in the cylinder core. With the insertion of the key in the key channel after DE 196 09 400 C2 is made by electrical coupling contact or contact an electrical connection between the key, cylinder core, the power supply, key code and transmitter. After evaluation of the coding and decision on the locking authorization of the closing operation is enabled or disabled by activating or deactivating the electro-mechanical release mechanism. For this purpose, a locking bar blocks the cylinder core in the cylinder housing. When closing, ie when turning the cylinder core, the locking bar is pressed via bevels against the force of springs in the cylinder core. In the case of non-release blocked a two-part magnet armature immersion of the locking bar in the cylinder core. In the case of the release of the closing operation, the immersed in the local electromagnet armature give the lifting movement of the locking bar and thus the closing process free.

The insertion or insertion of the key in the key channel is completely possible even with mismatched encoding with the result that a force application can be made to act on the core even when not matching coding such a torque that it is twisted, with the Sequence of releasing the lock via a conventional locking tongue coupled to the core. In particular, when more mechanical locking and tumbler pins of the usual type are to be accommodated in the cylinder core, the amount of the reduced in accordance with DE 196 09 400 C2 the means to be mounted in the cylinder core, namely the transmitter, the device for transmitting the coding and the electro-mechanical locking device the available space. The latter is a considerable disadvantage in particular if conventional, widely used standard lock cylinders are to be equipped or retrofitted with a possibility of electronic coding.

Also at the EP 1 240 399 B1 , which shows an electro-mechanical cylinder lock, the transmitter is located in the cylinder core. A side rail which cooperates with the housing and the core and is movable between a first position, in which, a rotation of the core is permitted with respect to the housing, and a second position, in which the rotation of the core with respect to because housing is blocked, be moved.

One electronically controllable actuator is in the core and can the movement of the aforementioned Lock sidebar. additionally is a return agent provided, which interacts mechanically with the key and the actuator and the actuator from the first position to another, third position moves in response to the key being removed the key channel, where the third position is moving the sidebar to the first one Sidebar position, d. H. in the position in which the Rotation of the core with respect to the housing is allowed blocked.

From the EP 1 331 328 A2 a lock cylinder arrangement is previously known, in which an electromechanical locking device is arranged in the form of a coil in the axial direction relative to the lock cylinder. The electromagnetic locking device prevents rotation of the lock cylinder in the cylinder housing.

The EP 0 401 647 A1 however, shows a lock cylinder assembly with electromechanical locking device, which acts on the rotatability of a rotatable member. The locking device of the local solution comprises a mechanical flip-flop, which consists of a slidable latch, a spring, an electromagnet and a trap. The bolt is located in a longitudinal groove which is executed both in the housing of the lock cylinder and in the rotatable part and in the locked state engages over both parts, so that there is a form-liquid connection between the housing of the lock cylinder and the rotatable part.

Out The above, it is therefore an object of the invention, a further developed Lock cylinder arrangement comprising a lock cylinder housing and a rotatably mounted in this cylinder core with a lot from between core and housing acting mechanical locking elements in the form of known Tumbler pins and with additional electronic coding and electro-mechanical locking device, the arrangement overall structurally simple and therefore cost-effective and is feasible continue from the outset in the absence of exact coding a complete one Introduce of the key in the key channel is preventable. According to the invention, the to be specified lock cylinder arrangement a recording in standard lock cylinder according to relevant Allow standards, so that too a trouble-free exchange in already existing locking systems possible is.

The solution The object of the invention is carried out with the feature combination according to the teaching Claim 1, wherein the dependent claims at least expedient embodiments and represent further education.

It is therefore a lock cylinder arrangement, comprising a lock cylinder housing and a rotatably mounted in this cylinder core with a lot of acting between core and housing assumed mechanical locking elements in the form of tumbler pins, wherein the tumbler pins according to the mechanical Coding of the key can be converted into a release position. Furthermore, an additional electronic coding between key and lock cylinder arrangement provided with appropriate electromechanical locking device.

According to the invention the cylinder core a surrounding this substantially hollow cylindrical Locking element with a locking web on, wherein the locking element, which surrounds the core and forms part of it, on the cylinder core longitudinal axis is formed lockable displaceable.

Of the Barrier cuts the key insertion channel the cylinder core, with the result that a contacting the Schließbarts the key possible with the barrier bar becomes.

The Locking element comprises at least one in the cylinder core longitudinal axis direction extending latching lug, which engages in a complementary recess in the core, To secure it in the locked state against rotation.

at a first embodiment is the electro-mechanical locking device in the cylinder core. In this case, the locking device prevents the displacement of the locking element, by intervening in a corresponding franking. If appropriate Coding gives the electromechanical locking element, the locking element free, so that the Pestle up introduced to the core attack can be and in the closed position comes. After this is the rotation of the core and thus the execution of the closing process possible.

at a second embodiment is in the cylinder housing, which points essentially radially away from the cylinder core extends, the electro-mechanical locking device located, which a locking pin in the radial direction on the locking element and move away therefrom, locking the locking element the locking pin in a recess or groove in the locking element arrives.

Of the Barrier is in one embodiment of Invention on the inner, coupling-side end of the key feed channel to be in electro-mechanically locked state, a complete insertion of the key in the key feeder channel to prevent, and in the unlocked state, the locking element in cylinder core longitudinal direction during insertion of the key to move so far that the Latch of the complementary Recess is released or emerges from this recess.

In a further embodiment The invention is the at least one locking lug on the outer end arranged the locking element.

The Locking element is preferably under spring bias, in such a way that it towards the outer end of the key feed channel depressed becomes.

The electronic device for evaluating the electronic coding is located advantageously in the cylinder housing.

Farther is in the cylinder housing a device for transmitting coding and / or electrical energy from the key to Transmitter arranged.

The aforementioned Electro-mechanical locking device can be used as a lifting magnet, piezoelectric actuator or similar, means to be operated with electrical energy be educated.

by virtue of the fact that the Transmitter is located in the cylinder housing, can about this fixed part also electrical energy in a simple way of Outside supplied What happens with an arrangement of electronic components in the rotating Core only by complicated contact arrangements is possible.

The Invention will be described below with reference to an embodiment and below With the help of figures closer explained become.

in this connection demonstrate:

1 Representations of the cylinder core with locking element in the locked state (above) and unlocked (below), respectively in perspective and in side view;

2 Partial sectional views of the lock cylinder assembly with inserted key, in the state "locked" (above) and "released" (below) and

3 a sectional view through the cylinder core and cylinder housing showing the arrangement of the electro-mechanical locking device according to the second embodiment, the transmitter and other elements.

According to the representations after 1 the lock cylinder arrangement comprises a cylinder core 1 , which in the cylinder housing 2 ( 3 ) is rotatably mounted.

Between the cylinder core 1 and the cylinder housing 2 are not shown, known per se mechanically acting locking elements in the form of tumbler pins, which according to the mechanical coding of the key 3 ( 2 ) can be converted into a release position.

The cylinder core 1 according to 1 a surrounding hollow cylindrical locking element 4 up, that a barrier bar 5 comprising, wherein the locking element 4 is slidably designed lockable on the cylinder core longitudinal axis (arrow).

The barrier bridge 5 cuts the key feed channel 6 at the rear, inner end.

Furthermore, the locking element 4 at the end circumference at least one locking nose pointing in the longitudinal direction of the cylinder core 7 which is in a complementary recess 8th in the core 1 intervenes.

The locking pin 10 as shown 2 may be part of the electromechanical locking device or be in operative connection with this, wherein in this first embodiment, the electro-mechanical locking device in the cylinder core 1 itself and is controlled accordingly.

As shown 3 and a second embodiment of the invention is located in the cylinder housing 2 the electro-mechanical locking device 9 , which is capable of a matched locking pin in the radial direction of the locking element 4 and move away from it.

To lock the locking element 4 arrives here the locking pin 10 in a recess or groove 11 in the locking element (see 3 ). With the help of a compression spring 12 becomes the locking element 4 held under pretension and as shown by 1 (top) forward, ie in the direction of the corresponding covenant on the cylinder core 1 moved, so that when not inserted key 3 a locking position between locking lug 7 and recess 8th given is.

The operation of the lock cylinder assembly is shown in the illustrations 2 clear.

In the upper part of the picture the situation is shown, after which the key 1 can not be transferred to the closed position.

The locking element 4 is in this representation, either by the electro-mechanical locking device 9 ( 3 ) due to the fact that the means for transmitting the coding and energy 13 in the key 3 is not complementary to the corresponding code of the present lock cylinder, or it is held in the cylinder core electro-mechanical locking device in blocking position.

So it comes in this situation, the key stop 14 not in contact with the core stop 15 ,

With the reference number 16 is the cam and the reference numeral 17 the pair of couplings in the 2 shown.

In the lower illustration the key hits 3 to the locking element 4 , The internal or external electro-mechanical blocking element 10 indicates the displacement of the locking element 4 free. The key can be here until the core stop 15 be introduced and thus comes in the closed position. It's turning the core in this case 1 and thus the closing process possible.

According to 3 showing a sectional view through the lock cylinder assembly according to the second embodiment, are in the lower part of the lock cylinder housing 2 on the one hand the transmitter 18 and on the other hand, the already mentioned electro-mechanical locking device 9 located.

The electro-mechanical locking device 9 can be designed as a solenoid, which the locking pin 10 emotional. It is also conceivable, however, a piezoelectric actuator or a similar actuator element.

In the cylinder housing 2 , in the upper hollow cylindrical part is analogous to the device 13 for transmitting the coding and energy in the key 3 a corresponding facility 19 for transmitting the coding and energy, which via an electrical connection 20 with the transmitter 18 is contacted.

Everything in everything possible the invention provides a lock cylinder arrangement which both with mechanical coding means in the form of tumbler pins as well as with additional electro-mechanical coding is equipped, with the available Space can be used in an optimal way.

With Help the concept regarding the prevention of the complete Inserting the key in the feed channel lack of electronic coding is a very high safety standard given.

1

core

2

casing

3

key

4

locking element

5

barrier flight

6

Schlüsselzuführkanal

7

locking lug

8th

recess

9

electro-mechanical locking device

10

locking pin

11

Recess / groove

12

compression spring

13

Facility to transfer the coding and energy in the key

14

key stroke

15

nuclear attack

16

Cam

17

coupling pair

18

evaluation

19

Facility to transfer the coding and energy in the case

20

electrical connection

Claims (9)

Lock cylinder assembly comprising a lock cylinder housing and a rotatably mounted in this cylinder core with a set of acting between the core and housing mechanical locking elements in the form of tumbler pins, which are convertible according to the mechanical coding of the key in a release position, and with an additional electronic coding between the key and Lock cylinder arrangement with electro-mechanical locking device, characterized in that the cylinder core has a surrounding hollow cylindrical locking element with a locking ridge, wherein the locking element is lockable slidably formed on the cylinder core longitudinal axis, further, the locking ridge cuts the key feed channel of the cylinder core and the locking element end circumference at least one comprises in the cylinder core longitudinal axis direction locking lug, which engage in a complementary recess in the core t to secure it in the locked state against rotation, wherein the locking of the locking element takes place by means of the electro-mechanical locking device. Lock cylinder arrangement according to claim 1, characterized in that the barrier web on the inner, coupling end of the key feed channel is located to in the electro-mechanically locked state complete Introduce of the key in the key feeder channel to prevent and in the unlocked state, the locking element in cylinder core longitudinal axis direction Introduce of the key to move so far that the Latch of the complementary Recess is released. Lock cylinder arrangement according to claim 1 or 2, characterized in that the at least one Latch at the outer end of the locking element is arranged. Lock cylinder arrangement according to one of the preceding claims, characterized that this Locking element under spring force prestressing in the direction the outer end of the key feed channel depressed is. Lock cylinder arrangement according to one of the preceding claims, characterized that in the cylinder housing an electronic device for evaluating the electronic Coding is located. Lock cylinder arrangement according to claim 5, characterized in that the cylinder housing has a device for transmitting the coding and / or of electrical energy from the key to the transmitter. Lock cylinder arrangement according to one of the preceding claims, characterized that the Electro-mechanical locking device as a solenoid or piezoelectric actuator is trained. Lock cylinder arrangement according to one of the preceding claims, characterized that in the cylinder housing the electro-mechanical locking device is located, which a locking pin in the radial direction on the locking element and moved away therefrom, locking the locking element the locking pin in a recess or opening or groove in the locking element arrives. Lock cylinder arrangement according to one of the claims 1 to 7, characterized in that the electro-mechanical locking device is arranged in the cylinder core.