DE112007002578B4 - lock cylinder - Google Patents

Abstract

Lock cylinder, comprising a lock cylinder stator (2) and a lock cylinder in the stator (2) mounted and relative to this rotatable lock cylinder rotor (1) and a blocking and / or coupling element (3, 22) which between a first and a second position relative to the lock cylinder stator (2) and / or the lock cylinder rotor (1) is movable, wherein the lock cylinder is in a locked state when the blocking and / or coupling element is in its first position, characterized by a Control (5) and a piezomotor comprising a fixed part and a moving part, wherein the moving part is movable relative to the fixed part, wherein the control element (5) is movable by the driving action of the piezo motor between two positions, wherein it in a first position the blocking and / or coupling element (3, 22) is not possible to assume either its first position or its second position, and it in a second Stel ment allows movement of the blocking and / or coupling element (3, 22) in the first and second position.

Description

The invention relates to a locking device in the form of a lock cylinder for a locking system. The term "locking system" is understood here to mean a system with mechanical elements which allows or blocks the access or access to an object, depending on whether or not there is authorization. A shooting device will in particular enable or prevent the operation of a lock cylinder or lock by rotation of a key or a door knob, by operating a door handle or similar means, or automated, by means of suitable drive means, etc.

Locking devices of this type have a housing which can be fixedly connected to an object (for example a door) and an actuating element movable relative to the housing. The actuator is rotatable in many cases in the housing and is therefore often called 'rotor'. The actuating element is connected, connectable or provided with output means with which a locking element can be actuated. In some cases, the actuator itself can serve as a bar. The actuator is often operated with a key or directly by hand. It can also be moved by an electric drive relative to the housing.

For locking devices there are mechanical locking mechanisms, mechatronic locking mechanisms and mechanical / mechatronic locking mechanisms. Mechanical locking and unlocking mechanisms are based for example on the interaction of tumbler / Gegenzuhaltungspaaren the lock cylinder with coding holes on a matching key.

The mechatronic, electronically controlled locking is based on a data transmission between an electronic module associated with the locking device and an electronic module belonging to the key. This data transmission can take place by contact - for example by means of electrical contacts on the key and lock - or without contact - for example by means of electromagnetic induction. Data can be transmitted in one or both directions. In the electronic module of the locking device and / or in the electronic module of the key is checked based on the transmitted data, whether the inserted key is authorized to access. If this is the case, an electric drive of the closing device is activated, which electronically controls a blocking element such that it releases the closing device.

Another example of a mechatronic or combined mechanical / mechatronic locking and unlocking mechanism is disclosed in the international patent application WO 2004/057137 shown.

Mechatronic or combined mechanical / mechatronic locking and unlocking mechanisms offer the possibility of implementing additional security features in comparison to purely mechanical mechanisms and, depending on this, allow a simpler reprogramming of an access regime. However, they also have disadvantages in terms of safety (under certain circumstances, an unlocking effect electric motor can be operated by externally induced currents), energy consumption, susceptibility to failure and wear (the device has many items), complexity and cost and space requirements.

From the Japanese patent application JP 06 073930 a closing device is known in which a locking bolt can be actuated by means of a piezoelectric element instead of an electric motor. Such a solution can do with fewer parts, and also brings a low energy consumption. But it also has serious disadvantages. Depending on the configuration, the piezoelectric element can generate propulsion on a very short path, which is very detrimental to safety. In certain embodiments, only a limited propulsive and holding force can be transmitted by the drive, which is also undesirable for safety considerations. In certain forms, the drive for the locking bar requires a lot of space.

DE 10 2006 007 691 B3 teaches a Kompaktverrieglungseinheit that can be retrofitted for differently hinged doors or flaps (especially the right or left hinged). The locking takes place via a locking pin, which moves into a locking recess or a locking groove of a locking mandrel using a piezo motor.

From the European patent application EP 1 516 983 a lock cylinder is known in which a locking bolt is moved stepwise through a contact surface which is moved by a piezo rod or piezobender along an elliptical path. Such a solution is difficult to realize in practice, in particular a reliable holding of the locking bolt in the locking position is delicate.

In WO 03/085227 A1 a lock cylinder is disclosed in which a key can only be completely inserted into a key opening if the access authorization is additionally confirmed by an optical coding on the key becomes. In the absence of confirmation by the optical encoding, a blocking pin ensures that a core pin of the lock cylinder can not be pushed out of the keyhole by the key. The position of the blocking pin is changed using a piezoelectric bender.

It is therefore an object of the invention to provide a lock cylinder which overcomes disadvantages of prior art solutions.

This object is achieved by a lock cylinder according to claim 1.

By a 'piezomotor' or a piezoelectric motor 'is meant a motor having a fixed part and a moving part, the moving part being movable relative to the fixed part by vibrating a piezoelectric element, the moving part and moving the fixed part relative to each other over several oscillations of the piezoelectric element (in the same direction), the resulting trajectory increasing as a function of the number of oscillations. A piezomotor is thus different from a pure piezobender, which can be reversibly brought from a first to a second state by applying a voltage to a piezoelectric element.

If the piezomotor is a rotary motor, the fixed part is called "stator" or "piezo element stator", the moving part "rotor". Depending on the configuration, it may not necessarily be defined which part of the piezomotor is the moving part and which is the fixed part, i. even the fixed part can move due to the action of the drive. It is essential that the moving part is moved relative to the stationary part by the drive of the piezo motor.

The inventive approach solves the problem initially posed and brings a number of benefits with it. Thus, the provision of a separate from the blocking and / or coupling element (but possibly associated with this in a suitable manner, which is discussed below) control advantageous because it allows, for example, to increase the holding force on the blocking and / or coupling element , In addition, there are opportunities to make positioning very precise. The inventive provision of a piezo motor has important advantages. Thus, piezomotors with a compact and flexible design can be used; For example, a piezoelectric motor can surround a lock cylinder in an annular manner. Available piezomotors exert a considerable holding torque, even if they are not supplied with electrical energy. Since they have little moving parts depending on the design, they may be quite inexpensive to produce and less susceptible to errors. They allow the application of large torques at low rotational speeds, are precise in positioning and quiet. Moreover, unlike conventional electric motors, they hardly have conductor loops and are therefore insensitive to electromagnetic interference. There are no interferences between any multiple piezomotors arranged close to each other. Another important advantage results from the combination of piezomotors with safety-related applications (locking devices are such a safety-relevant application). Piezo motors can only be operated with special control electronics and with generally high-frequency (eg 10 kHz and more) voltages, possibly for several connections between which a phase relationship must be defined. This means that, in contrast to conventional electric motors or even piezo-motors, it is not possible to control the motor with conventional DC voltages. This brings a great deal of additional manipulation security with it.

The control acts as mentioned according to the invention together with the blocking and / or coupling element that in one of its positions the blocking and / or coupling element does not allow one of its two layers - preferably its second (free or coupling ) Able - to take. In this case, the term "enable" can be understood passively in that the control element in its first position prevents the blocking and / or coupling element from assuming its second or first position. But it may also be that the control actively acts on the blocking and / or coupling element by it by its movement from the first to the second position, the blocking and / or coupling element - eg. Against the force of a spring or against the Gravity - moved to the second or first position.

The interaction of the control with the blocking and / or coupling element can be done in many different ways. According to a preferred embodiment, a type of guiding or control surface is present. Such may cause a location at which the blocking and / or coupling element, or possibly an intermediate portion present therebetween and the control element is present on the control member, to shift as the control member moves in the intended manner between the first and second positions becomes.

According to a special embodiment, the blocking and / or coupling element is forcibly guided in its movement between the first and second layer by the control, ie the position of the control always determines the position of the blocking and / or coupling element. For example. can be provided that a kind of rail or a groove of the guide element cooperates with corresponding guide parts of the blocking and / or coupling element and moves in a movement of this. Other types of forced operation are conceivable, for example with the aid of force deflection means (joint elements, pivot pins), gears, threads, etc.

In these two embodiments, therefore, the undesired movement of the blocking and / or coupling element in the second (or first) layer is prevented by a lot of blocking and / or coupling element on any kind of stop surface of the guide element or at one with the guide element connected stop surface is present. This means that movement into the second (or first) position can only be effected after the control has been moved away from its assumed position or by being displaced away from its assumed position.

Alternatively, the control may act on the blocking and / or coupling element in other ways. For example. can cause a magnetic interaction that the control element holds the blocking and / or coupling element in its first position when it is in its first position, for example. By having a permanent magnet, depending on the position of the control on the blocking and / or coupling element may act or not. Other types of interaction between control and blocking and / or coupling element are conceivable.

The movement between first and second position may be a translation movement between two positions. But it can also be a tilt, turn or combined translational and tilting / rotating movement. Also other types of movement are not excluded, for example, associated with a deformation of the blocking and / or coupling element movements. In the case of a tilting movement, the blocking and / or coupling element may be rotatably supported by a pivot and have a guide projection radially spaced from the pivot which engages a corresponding guide surface of the guide element (or vice versa: the guide element has a guide projection formed into a guide surface the blocking and / or coupling element engages).

Also preferred - this option is in all embodiments, especially those with control surface or forced operation - moves the control locally transversely to the direction of movement of the blocking and / or coupling element. This means that the control is designed and arranged such that a movement of the control element between the first and second position in the region of a touch or stop surface with the blocking and / or coupling element movement transverse to the direction of movement of the blocking and / or Coupling element is. In other words, when the blocking and / or coupling element is moved between its first and second position in a first direction, when moving from the first to the second position, the control can locally in the area of the stop surface in a direction perpendicular to the first or move in an angle direction. In particular, the control element may move tangentially when the first and second layers of the blocking and / or coupling element are radially or axially spaced-apart positions. Alternatively, the control member may move in the axial direction when the first and second layers of the blocking and / or coupling element are radially or tangentially spaced apart positions, etc. In a non-cylindrical configuration, directions of movement of the control element and the blocking and locking elements can be determined Be coupling element perpendicular or at a different angle to each other. Such a configuration has the advantage that a force exerted on the blocking and / or coupling element is not transmitted to the piezomotor or is only attenuated. For the piezomotor, therefore, a smaller holding torque is sufficient for a non-powered motor.

If the control moves locally transversely to the direction of movement of the blocking and / or coupling element, the following principle can be applied: Either the control or the blocking and / or coupling element or both the control and the blocking and / or coupling element has / possess in the area of the contact surface between these two elements, a guide surface which is at an angle other than 90 degrees and 0 degrees both to the direction of movement of the blocking and / or coupling element and to the direction of movement of the control. This acts in the manner of a ramp: When the control is moved, this can cause a movement blocking and / or coupling element in about perpendicular direction.

For blocking lock cylinder stator and actuator can - this applies to all embodiments - the following principle are used. The direction of movement of the blocking and / or coupling element is transverse to the shear line (actually it is a shear surface) between actuator and lock cylinder stator. At least in one position of the actuating element, the blocking and / or coupling element protrudes into a recess of the lock cylinder stator or actuating element and crosses the shear line. The shear line abuts an approximately vertical surface portion of the blocking and / or coupling element, depending on the locking state, thereby making it impossible to rotate the lock cylinder rotor, or to an angled surface portion.

The piezomotor may, for example, be of the traveling wave motor type. However, it can also be another piezomotor type, for example a standing wave ultrasonic motor or a piezomotor, in which oscillations of a piezoelectric element trigger corresponding oscillations of a propulsion element, which advance the rotor (or a differently configured moving element) in steps. Both in the embodiment as a traveling wave motor and in other embodiments, a rotor of the piezoelectric element may extend in an annular manner around the lock cylinder rotor and possibly around areas of the lock cylinder stator. Such a standing wave piezoelectric motor in this embodiment has been described, for example, by Physik Instrumente GmbH (Vyshnevskyy et al., Poster at the Actuator 2004; the standing wave piezoelectric motor is relatively easy to control). The principle of the piezo motor, regardless of the design, has the substantial advantage that in such an annular configuration, the interior of the ring can be both free of elements belonging to the piezo motor and free of fields.

The piezomotor does not have to be a rotary motor, but can also be a linear motor.

The interaction between the moving part (for example the rotor) of the piezo motor and the control element can be of different types: According to a first variant, the control element is the - suitably shaped and, for example, provided with a control surface moving part of the piezo motor, or it is reversible or irreversibly firmly connected to the moving part of the piezo motor. According to a second variant, there is a positive guidance between the moving part of the piezo motor and the control element. Thus, for example, a rotor of the piezo motor and a translationally displaceable control element can be connected to one another by a thread, suitable guide means preventing a rotational movement of the control element, but permitting translatory movements. Other variants - for example, without positive guidance - are conceivable.

The lock cylinder stator is a (one-piece or multi-part) component which is fastened in use, for example, to the object to be closed (building, vehicle, container, etc.) or to a closing element (door, window, cover, etc.). The closing device stator may form a housing or be removable or mounted in a housing. The lock cylinder stator can optionally also store other elements, such as a locking element, etc.

The actuating element is movable in the unlocked state relative to the lock cylinder stator. It can - as is known from the prior art - be rotatably mounted in the lock cylinder stator and serve as a lock cylinder rotor. It is for example connected or provided with output means with which the locking element can be actuated. In some cases, the actuator itself can serve as a bar. The actuator is often operated with a key, a door handle, a knob or otherwise. It can also be moved by an electric drive relative to the lock cylinder stator.

The blocking and / or coupling element, depending on the design of the lock cylinder rotor, the lock cylinder stator and the control as a locking bolt - for example, pin-shaped, as a ball, as a block, as a beam, as a lever, etc. - or otherwise formed. It can also be designed in the manner of a known tumbler or counter-locking. Depending on which it is provided with spring means. In special cases, it may also be deformable in a predetermined manner, for example by having a resilient portion, whereby the spring means are integrated. Of course, several blocking and / or coupling elements may be present, which interact either with a common control or with multiple controls.

In addition to the components described above, the lock cylinder, for example, still an electronic module. This includes means to determine if an access authorization exists based on data exchanged with another electronic module (an electronic key or a mechanical / electronic key electronic module). It may also include means to control the piezomotor. Such an electronic module can also be present separately from the lock cylinder, possibly in a separate location. Then, a communication link between such an electronic module is present or produced, so that the lock cylinder from outside ("remote") can be controlled. The electronic module does not have to form a closed unit, but rather can Parts of it should be available separately. For example, the engine electronics and the rest of the electronics can also be separated from one another.

The lock cylinder and optionally a matching key can optionally have mechanical locking devices and corresponding unlocking means in each embodiment in addition to the inventive mechanism, for example. In the form of tumblers / Gegenzuhaltungspaaren the lock cylinder, which cooperate with corresponding coding holes of the key. However, such locking devices are not necessary; a key may also be merely a carrier of the electronic module and have a shank, which is insertable into the keyhole and serves only for exerting the torque. In addition to the mechanism according to the invention, further mechatronic locking means may also be present. Also, the key can be multi-part, so that the electronic module and the shaft are not present on the same part. An electronic key can, for example, be card-shaped.

According to a special embodiment, the lock cylinder in addition to the features described on a blocking element by means of which it can be held directly or indirectly in a housing or other device. The locking element is now movable according to the preferred embodiment between a first and a second position relative to the lock cylinder stator, wherein it can prevent removal of the lock cylinder from the housing or the other device in its first position. According to the specific embodiment, a guide element - preferably but not necessarily the control element - in a first position does not allow the locking element to assume either its first position or its second position and in a second position movement of the locking element into its first position or second location allow. In this case, the guide element is movable by the driving force of a piezomotor between the first position and the second position.

The locking member may in its first position directly prevent removal of the lock cylinder from the housing or other member by blocking a shear line between the lock cylinder stator and the housing or other member. It may alternatively prevent removal of the lock cylinder by blocking a fastener, which in turn precludes removal of the lock cylinder.

According to a second aspect, which is not the subject of the claimed invention, there is provided a lock cylinder having a lock cylinder stator and a lock cylinder rotor movable relative thereto with a keyed opening and at least one tumbler and a counter-tumbler cooperating therewith. In the closed state of the device, the tumbler and the Gegenzuhaltung are together in a space formed by recesses in the lock cylinder stator and the lock cylinder rotor. Between the tumbler and the Gegenzuhaltung - as is the case for tumbler Gegenzuhaltungspaare - a contact surface is formed, which can be so relative to a contact surface (shear surface) between lock cylinder rotor and lock cylinder stator aligned that a rotation the lock cylinder rotor is not blocked relative to the lock cylinder stator, wherein in such a rotation, the tumbler is rotated with the lock cylinder rotor and the Gegenzuhaltung remains in the lock cylinder stator. If no key is inserted into the key opening, at least the tumbler, and for example also the counter-locking pressed by a spring force against a stop, in which position the tumbler protrudes into the keyhole. The spring force acts, for example. On the Gegenzuhaltung (and of this on the contact surface on the tumbler); But it can also act directly on the tumbler. By inserting a key, the tumbler is displaceable against the spring force. According to this second aspect, a control is now present, which is movable between two positions, wherein it prevents the entry of a position of the tumbler or Gegenzuhaltung in a first position, in which the tumbler or Gegenzuhaltung can get when the control in its second position is.

The control element may, for example, be movable between its first or second position by the drive of a piezomotor, in which case the lock cylinder also corresponds to the first aspect of the invention described above, for example in any of the described configuration compatible with the principle of the second aspect can. Alternatively, the control can be moved by another electronically controllable drive between its first and its second position.

According to yet another alternative according to the second aspect, the control element can also be actuated purely mechanically, for example by inserting a suitable key. This matching key may be the key that fits into the keyhole, mechanically coded and used to rotate the lock cylinder rotor, and then provides additional mechanical coding to unlock the control can have. Such may be present on the key shank or also on the bowl chalk (there, for example, as a protrusion protruding, suitably shaped projection, which moves the control by insertion into a suitable opening). The matching key may also be a separate, second key to be inserted into a suitable second keyhole.

In any type of drive / actuation of the control, this may act as described above and analogous to the following embodiments and / or be configured. In particular, the control may be annular or have an annular portion and extend around the lock cylinder rotor. It may also be in operative connection with an element extending annularly around the rotor.

• - Es kann durch eine Anschlagfläche oder eine Zwangsführung ein Verschieben der Gegenzuhaltung und/oder der Zuhaltung gegen aussen (also weg von der Schlüsselöffnung) verhindern, wodurch bspw. ein vollständiges Einführen des Schlüssels verunmöglicht werden kann.
• - Es kann durch eine Anschlagfläche oder eine Zwangsführung ein Verschieben der Gegenzuhaltung und/oder Zuhaltung nach innen (also zur Schlüsselöffnung hin) verhindern, wodurch zwar ein Einführen des Schlüssels in die Schlüsselöffnung nicht verhindert wird, aber auch bei an sich passender Codierungsbohrung an der Stelle des Zuhaltungs-/Gegenzuhaltungspaares die Berührungsfläche nicht in die Freilage gelangen kann.

The control may be blocking in its first position as follows:

• - It can by a stop surface or a forced operation to move the Gegenzuhaltung and / or the guard against the outside (ie away from the keyhole) prevent, whereby, for example, a complete insertion of the key can be made impossible.
• - It can be prevented by a stop surface or a positive guidance movement of the Gegenzuhaltung and / or tumbler inward (ie towards the keyhole opening), whereby an insertion of the key is not prevented in the keyhole, but also in itself fitting coding hole at the site of the tumbler / Gegenzuhaltungspaares the contact surface can not get into the freehub.

• - 1a bis 1c schematische Schnittdarstellungen einer ersten Ausführungsform der Erfindung;
• - 2 eine Ansicht einer Schließvorrichtung gemäss der ersten Ausführungsform der Erfindung, wobei aus Gründen der Übersichtlichkeit nicht alle Teile dargestellt sind;
• - 3a - 3f, 4a - 4d, 5a-5b, 6a-6d, 7a-7e, 8a-8c und 9a, - 9c Darstellungen je einer weiteren Ausführungsform der Erfindung.

Embodiments of the invention will be described in more detail below with reference to drawings. In the drawings, like reference characters designate like or corresponding elements in their function. Show it:

• - 1a to 1c schematic sectional views of a first embodiment of the invention;
• - 2 a view of a locking device according to the first embodiment of the invention, wherein for reasons of clarity, not all parts are shown;
• - 3a - 3f . 4a - 4d . 5a-5b . 6a-6d . 7a-7e . 8a-8c and 9a , 9c representations of a further embodiment of the invention.

The locking device according to 1a to 7e is a lock cylinder, wherein the actuator is designed as a lock cylinder rotor. The lock cylinder rotor is provided with a key opening into which a key of a known or a novel design can be inserted. The lock cylinder and the key may optionally have mechanical locking means and corresponding unlocking means in each embodiment, for example in the form of tumbler / counteracting pairs of the lock cylinder, which cooperate with corresponding coding bores of the key. However, such locking devices are not necessary; the key may also be merely a carrier of the electronic module and have a shaft which is insertable into the key opening and serves only for exerting the torque. The key can also be multi-part, so that the electronic module and the shaft are not present on the same part.

The basis of the above 1a to 7e illustrated principle can also be used with corresponding minor modifications (eg omitting the key opening, connecting the rotor with a user-accessible or electronically triggerable actuating means, eg door handle, doorknob, size adjustments) in closing devices are used, which are not designed as a lock cylinder but provide, for example, the operation of a rotor by a door handle, a door knob or other means.

1a shows a locking device in the locked state. Shown are a lock cylinder rotor 1 in a lock cylinder stator 2 is rotatably mounted. The lock cylinder rotor has a key opening 1.1 into, in which the shaft of a not shown here key can be introduced. Furthermore, you can see a blocking and / or coupling element 3 , which is located in an interior, through recesses 1.2 . 2.2 is formed in the lock cylinder rotor or in the lock cylinder stator. In the arrangement according to 1a There is a region of the blocking and / or coupling element 3 on the shear line between the lock cylinder rotor and the lock cylinder stator, and a deflection of the blocking and / or coupling element 3 can not. In this way prevents the blocking and / or coupling element in the drawn position - the blocking position - a rotation of the lock cylinder rotor 1 in the lock cylinder stator 2 and thus an actuation of the lock cylinder.

Dodging of the blocking and / or coupling element inwardly is in the illustrated arrangement by gravity and the shape of the blocking and / or coupling element 3 prevented. The shape of the blocking and / or coupling element is such that shearing forces between the Lock cylinder rotor and the lock cylinder rotor can not be deflected in the blocking and / or coupling element against gravity upward forces. However, it may be provided additionally or additionally, which is particularly preferred, that the size and / or shape of the recess 1.2 in the lock cylinder rotor 1 a deflection of the blocking and / or coupling element inwardly not allowed, since a stop surface for the blocking and / or coupling element is formed.

Dodging of the blocking and / or coupling element to the outside is by a control 5 impossible. This is formed in the illustrated arrangement as a ring, which in the illustrated area the lock cylinder rotor 1 and also the lock cylinder stator 2 surrounds.

The control has a recess 5.1 with a ramp-like surface section 5.2 , The recess with the ramp-like surface portion and the subsequent circular cylindrical inner surface of the control act as a control surface 5.5 in the sense described above.

For unlocking the control is relative to the lock cylinder stator 2 turned that far, that the recess 5.1 of the control with the recess 2.2 of the lock cylinder stator is aligned. 1b shows a corresponding arrangement. In this arrangement, the blocking and / or coupling element 3 by placing it at least partially in the recess 5.1 of the control passes, dodge to the outside, whereby the shear line between lock cylinder stator 2 and lock cylinder rotor 1 is released and the latter can be rotated, which is in 1c is shown. The position in which the blocking and / or coupling element at least partially into the recess 5.1 the control element and the said shear line is released corresponds to the second position of the blocking and / or coupling element.

The drawn schematic embodiment illustrates well how the control 5 in an environment of the contact surface to the blocking and / or coupling element moves transversely thereto by the blocking and / or coupling element 3 is displaceable in the radial direction, but the control makes a rotational movement, which leads to a tangential movement of the control surface.

• - Aufgrund der Schwerkraft.
• - Aufgrund der Kraft eines - in der Figur nicht dargestellten - Federelements.
• - Aufgrund einer Kraft durch den Schließzylinder-Rotor auf eine Führungsfläche 3.1 des Blockier- und/oder Kupplungselements oder des entsprechenden Gegenstücks (hier: des Betätigungselements). In der dargestellten Ausführungsform wird die Führungsfläche 3.1 dadurch gebildet, dass das Blockier- und/oder Kupplungselement sich gegen innen verjüngt und dadurch einen bspw. konischen Oberflächenabschnitt aufweist.
• - Es sind auch andere Mittel denkbar, bspw. magnetische Kräfte, eine Zwangsführung durch das Steuerelement etc.
• - Beliebige Kombinationen dieser Möglichkeiten sind denkbar.

The blocking and / or coupling element can due to various causes in the in the 1b and 1c illustrated second position - or Freilage - get:

• - Due to gravity.
• - Due to the force of a - not shown in the figure - spring element.
• - Due to a force through the lock cylinder rotor on a guide surface 3.1 the blocking and / or coupling element or the corresponding counterpart (here: the actuating element). In the illustrated embodiment, the guide surface 3.1 formed by the fact that the blocking and / or coupling element tapers against the inside and thereby has an example. Conical surface portion.
• - There are also other means conceivable, for example. Magnetic forces, a forced operation by the control, etc.
• - Any combination of these possibilities are conceivable.

If the illustrated locking device is to be locked again, must first lock cylinder rotor in the illustrated variant 1 back in the 1a and 1b drawn position to be brought. It may, for example, be provided that, as is known per se, due to the tumblers, the key can only be pulled when the lock cylinder rotor is in this position. To lock the control is in the in 1a turned back position shown. The ramp-like section 5.2 the control surface causes in this movement, a pushing back of the blocking and / or coupling element in the in 1a drawn position in which it blocks the shear line between lock cylinder rotor and lock cylinder stator.

According to the invention, the movement - in this case rotational movement - of the control element is effected by the drive effect of a piezomotor. 2 shows a three-dimensional representation of the embodiment of 1a to 1c , wherein for reasons of better visibility of some elements of the lock cylinder stator is only partially shown. Elements in 1a to 1c are visible, are provided with the same reference numerals and will not be described again here.

The control 5 Rotor is a ring around the lock cylinder rotor 1 and placed around areas of the lock cylinder stator piezo motor whose stator 6 in the axial direction next to the rotor 5 lies. In a non-illustrated area between the rotor 5 and the stator is an arrangement having at least one piezoelectric element which is vibrated - often at frequencies of 10 kHz or more - and caused by these vibrations causes the rotor and the stator to move continuously relative to each other. Piezo motors - eg traveling wave motors of the illustrated, annular configuration - are known per se and will not be described in more detail. Of course, it is also possible to deviate from the illustrated arrangement to provide a piezomotor available whose stator is, for example, placed around the rotor, and / or based not on the traveling wave principle, but on a different type of effect of a vibrating piezoelectric element. In geometrical configurations other than those of 2 are also of the external shape ago differently designed piezo motors usable.

In the arrangement according to 2 You can still see a mounting plate 9 by means of which the lock cylinder rotor is rotatably supported relative to the lock cylinder stator. Only indicated are in 2 Mitnehmepartien 1.5 the lock cylinder rotor, which serve to guide not shown output means for a locking element.

In the 3a to 3f illustrated embodiment has in their operation in common with that of the embodiment described above. 3a shows a front view of the lock cylinder, 3b a representation of the along the surface bb cut cylinder of 3a . 3d a side view, 3c a representation of the cut along the surface cc lock cylinder, and 3e and 3f the 3c and 3d corresponding representations of the lock cylinder in the locked state.

The embodiment is based on the following principle. The blocking and / or coupling element is displaceable in the direction transverse to the shear line between the actuating element (for example, lock cylinder rotor) and closing device stator. At least in one position of the actuating element (for example, corresponding to the output orientation of the lock cylinder rotor, in which a key can be inserted and unplugged) projects the blocking and / or coupling element into a recess of the closing device stator / actuator and crosses the shear line (or shear surface). The shear line abuts an approximately vertical surface portion of the blocking and / or coupling element (thus making it impossible to rotate the lock cylinder rotor) or an angled surface portion, depending on the locking condition.

The blocking and / or coupling element 3 is in the illustrated embodiment so in the recess 1.2 in the lock cylinder rotor 1 stored it in the unlocked state of the device (see 3c ) is rotated during rotations of the lock cylinder rotor. The blocking and / or coupling element 3 is by a spring means - in the illustrated example consisting of two springs 11 - Pressed radially outward.

The lock cylinder stator 2 has a recess 2.2 , in which the blocking and / or coupling element in the drawn arrangements of 3c and 3e protrudes due to the spring force. The blocking and / or coupling element has a guide surface 3.1 on, by it tapers against the outside and, for example, has a ramp-like beveled surface portion (as a variant, could also be the lock cylinder stator 2 a ramped surface portion which abuts in a state against an edge of the blocking and / or coupling element). The radial extent of this guide surface is at least equal to the radial extent of the lock cylinder stator at the location of the blocking and / or coupling element and preferably slightly larger than this.

Im in 3c shown state of the device is the blocking and / or coupling element on the control. Due to the guide surface 3.1 the shear line between the lock cylinder rotor and lock cylinder stator is not blocked by the blocking and / or coupling element. Rather, caused by a rotation of the lock cylinder rotor shearing causes a counter-inward displacement of the blocking and / or coupling element, which then stands on a rotating movement inside the lock cylinder stator and slides on this. In the state according to 3e however, the locking device is locked. Because the blocking and / or coupling element due to the spring force in the recess 5.1 protrudes the control line, it blocks the shear line between the lock cylinder rotor and the lock cylinder stator.

Due to the guide surface 3.1 the blocking and / or coupling element 3 is the ramp-like section 5.2 the recess 5.1 Not necessarily required here to move the blocking and / or coupling element during unlocking by the control in its second position. However, as shown, it can still be available as an option. At least one ramp-like guiding surface is required in this embodiment.

As a further difference from the embodiment according to 1a to 2 In this embodiment, the blocking and / or coupling element is bar-shaped, wherein it has the greatest extent in the axial direction. This facilitates, among other things, the positioning of the springs 11 , How to get in 3b sees, it is not necessary that the guide element 5 in the axial direction over the entire length of the blocking and / or coupling element extends. Conversely, the blocking and / or coupling element could cover only a part of the axial extent of the guide element.

The embodiment according to 3a to 3f as well as similarly ausgestalteter other embodiments has the important under certain circumstances that moving the guide element between its first and second position is possible regardless of the orientation of the lock cylinder rotor. The guide element can in its first position (according to 3e ) are moved, even if the lock cylinder rotor is not in its initial orientation. However, the lock is of course only after the lock cylinder rotor has been brought into the initial orientation.

The embodiment of the 4a to 4d is different from the one of 1a to 2 in particular in that several blocking and / or coupling elements 3 available. In the example shown, the blocking and / or coupling elements are spherical. But you can have other shapes as in other examples. The guide surface of the guide element 5 sees according to the number of blocking and / or coupling elements a plurality of recesses 5.1 in front.

In the examples described above, the blocking and / or coupling element abuts depending on the position of an outwardly projecting guide surface. The above embodiments can also be realized in each case in the reverse configuration, in which the guide surface of the guide element is on the inside of the blocking and / or coupling element. In the examples of 1a to 2 and 4a to 4d, the blocking and / or coupling element is then carried along during a rotary movement of the lock cylinder rotor. In the example of 3a to 3f It is pressed by connected to the lock cylinder stator spring elements against the inside. Other variations are conceivable.

Also deviating from the drawn arrangement can on the lock cylinder rotor 1 Ramps be present as a guide surfaces that press the blocking and / or coupling elements upon rotation of the Schließzyinder rotor outward against the lock cylinder stator and the guide element.

The embodiment of the 5a and 5b corresponds to the second aspect in addition to the main aspect of the invention. In 5a and 5b the blocking and / or coupling element is a tumbler at the same time 22 the known type. Im in 5b shown, locked state of the locking device is the tumbler 22 belonging Gegenhalthaltung 23 on an inside guide surface of the guide element. The tumbler 22 protrudes so far into the keyhole that they insert the key 21 prevented. Due to the presence of the counter-locking the tumbler can not escape to the outside. However, as soon as the guide element 5 turned so far that the Gegenzuhaltung in the recess 5.1 Dodge is also an insertion of the key 21 possible.

The counter-locking will be provided in a conventional manner still with spring means that press tumbler and counter-locking inward. The spring means engage, for example, on the guide surface and slide during rotational movements of the guide element 5 on this.

In the illustrated configuration, the tumbler / antagonism pair is designed so that the lock cylinder rotor can then be rotated when, as shown, the tumbler extends far into the keyhole, that is, when the tip of the tumbler projects into a coding bore of the key. If this is not the case - because the key has no coding hole or one not sufficiently deep at the corresponding location - the shear line between the lock cylinder rotor and the lock cylinder stator is blocked by the tumbler. Therefore, in the illustrated embodiment, the tumbler serves as the blocking and / or coupling element. In contrast to the above embodiments, however, prevents the guide element in its first, in 5b position shown not a movement of the blocking and / or coupling element (= tumbler) in its second position (= free position), but in its first position (= locked position). The blocking effect of the inventive mechanism is thus not based directly on the blocking of said shear line, but as mentioned that a necessary insertion of the key can be prevented.

As known to those skilled in the art, tumbler / detent pairs may also be present in configurations where the backstop blocks the shear line when the tumbler is not pushed outward by the key. Such configurations can also be combined with the mechanism according to the invention, in which case the counteracting acts as the blocking and / or coupling element and in that case by the control surface 5.5 the movement of the blocking and / or coupling element (= Gegenzuhaltung) in the second position (= Freilage) can be prevented.

As already mentioned above, the control can be used as a further alternative to the Preventing tumblers and / or preventing the counter-tumbler and / or tumbler from moving inwards (ie towards the keyhole opening), which does not prevent the key from being inserted into the keyhole opening, but also at the matching locking hole at the location of the tumbler / Gegenzuhaltungspaares the touchpad can not get into the freehead, if the control is in its first place.

The 6a to 6d show a further embodiment of the invention. 6a and 6c show representations of the along the surfaces aa and cc in the 6b respectively. 6d cut device. The representation of 6a shows the device in the locked, that of 6c in the unlocked state.

• - Der Rotor 31 des Piezomotors ist nicht gleichzeitig das Steuerelement. Vielmehr dient er dazu, das Steuerelement 5, bspw. mittels eines Gewindes, linear, hier in axialer Richtung, zu verschieben.
• - Das Blockier- und/oder Kupplungselement 3 bzw. die Blockier- und/oder Kupplungselemente sind zwischen ihrer ersten und ihrer zweiten Lage axial verschiebbar. Eine Anschlagfläche 5.3 für das Blockier- und/oder Kupplungselement - oder die Blockier- und/oder Kupplungselemente - ist stirnseitig am Steuerelement vorhanden.

The embodiment differs from the above examples in particular by the following principles:

• - The rotor 31 the piezo motor is not the control at the same time. Rather, it serves to control the 5 , For example, by means of a thread, linear, here in the axial direction to move.
• - The blocking and / or coupling element 3 or the blocking and / or coupling elements are axially displaceable between their first and their second position. A stop surface 5.3 for the blocking and / or coupling element - or the blocking and / or coupling elements - is present on the front side of the control.

The - here pin-shaped - blocking and / or coupling element engages in the position according 6a in the recess 1.2 of the lock cylinder rotor 1 and thus prevents rotational movements. The stop surface 5.3 prevents dodging in the axial direction. In the position according to 6c is the control 5 does not oppose an axial deflection of the blocking and / or coupling element. By turning the lock cylinder rotor 1 the blocker emanates from the recess 1.2 forced out. When the blocking and / or coupling element axially recedes, the lock cylinder rotor 1 relative to the lock cylinder stator 2 to be turned around. The control element and the blocking and / or coupling element may optionally be ferromagnetic, so that when moving the control 5 from the position according to 6a in the position according to 6c the blocking and / or coupling element is pulled along due to a magnetic attraction.

The embodiment of the 7a to 7e is similar in function to that of the 1a to 1d , However, it differs on the one hand in the geometry: The blocking and / or coupling element or the blocking and / or coupling elements is / are displaceable between their first and their second position in the axial direction. Accordingly, the recesses 1.2 . 5.1 - similar to in 6a to 6d - In frontal surfaces of the lock cylinder rotor 1 or of the guide element 5 available. On the other hand, the embodiment of 7a to 7e still a device with which by the piezo motor and the guide element 5 , which is also the rotor of the piezo motor, a fixing pin 43 can lock or unlock. At the same time it solves the dilemma that on the one hand a maintenance person should be allowed to remove the locking device without undue effort, but on the other hand, the safety should not be impaired and an unauthorized person should not be able to remove safety precautions by removing the entire locking device ,

7a shows a view of the along the surface aa in 7b cut device in the locked and fastened state. 7c shows a representation of the partially cut device also in the locked and fastened state, wherein the control surface 5.5 of the control 5 looks very good. 7d shows a corresponding representation in the unlocked and fastened state. 7e shows a representation of the device in the state in which it is removable for maintenance purposes from the - not shown - housing.

In addition to the blocking and / or coupling element - in the drawn variant, there are several blocking and / or coupling elements 3 - is still a blocking element 41 available. This is located in 7a . 7c and 7d drawn state in one through a recess 43.1 in the fixing pin 43 and a recess in the lock cylinder stator 2 formed interior and is due to the force of a spring 42 against the by the guide element 5 pressed guide surface pressed. This will be the attachment pin 43 opposite the lock cylinder stator 2 locked and can not be removed radially outwards.

If the guide element, however, the position according to 7e may be due to the recess 5.4 in the guide element the blocking element 41 through the spring 42 pushed so far out that it is completely or almost completely outside the recess 43.1 located. This allows a maintenance person to move the fastening pin radially outward or - depending on the configuration of the lock cylinder rotor - inwards. Once the fastener pin the shear line between the lock cylinder stator 2 and the case no longer locks, the whole can Lock cylinder forward - in the 7c to 7e to the right - to be deducted.

• - Erste Stellung: Verriegelt und befestigt: Das Blockier- und/oder Kupplungselement 3 blockiert die Scherlinie zwischen Schließzylinder-Rotor und Schließzylinder-Stator, und das Sperrelement blockiert die Scherlinie zwischen Befestitungsstift 43 und Schließzylinder-Stator.
• - Zweite Stellung: Entriegelt und befestigt: Dem Blockier- und/oder Kupplungselement 3 wird ermöglicht, die Scherlinie zwischen Schließzylinder-Rotor und Schließzylinder-Stator freizugeben, aber das Sperrelement blockiert die Scherlinie zwischen Befestitungsstift 43 und Schließzylinder-Stator.
• - Dritte Stellung: Befestigung gelöst: Dem Sperrelement wird ermöglicht, die Scherlinie zwischen Befestigungsstift 43 und Schließzylinder-Stator 2 freizugeben.

Overall, therefore, three defined positions of the guide element arise:

• - First position: Locked and secured: the blocking and / or coupling element 3 blocks the shear line between the lock cylinder rotor and the lock cylinder stator, and the lock member blocks the shear line between the fastener pin 43 and lock cylinder stator.
• - Second position: unlocked and fixed: the blocking and / or coupling element 3 is enabled to release the shear line between the lock cylinder rotor and lock cylinder stator, but the lock member blocks the shear line between the fastener pin 43 and lock cylinder stator.
• - Third position: fastening released: The locking element is made possible, the shear line between the fixing pin 43 and lock cylinder stator 2 release.

The possible positions of the blocking and / or coupling element and the blocking element are at a given position of the control 5 through the shape of the control surface 5.5 - So here the outer (left in the figure), frontal surface of the control - determined.

Of course, it will generally be provided that the electronic module, the control 5 only in the third position brings, if an appropriate authorization exists, which requires the possession of an electronic special key.

Instead of a fixing pin 43 - or another fastener - to block or release, a blocking element in a different than the drawn geometric arrangement also directly lock / unlock the connection between the stator and a housing or other permanently installed device.

8a to 8c show very schematically an embodiment which does not show a cylindrical configuration, but in which the actuating element 1 relative to the shutter stator 2 is linearly displaceable. The blocking and / or coupling element 3 is pin-shaped and similar to the embodiments described above in a recess 2.2 in the shutter stator 2 slidably mounted. In the locked state ( 8c ) protrudes a part of the blocking and / or coupling element 3 in a recess 1.1 of the actuating element 1 and thus prevents a relative movement of the actuating element 1 to the closing device stator 2 , The guide element 5 is in a first position, in which a portion of its surface forms a stop for the blocking and / or coupling element and prevents it from said recess 1.1 can be postponed. In his second, in 8a and 8b shown position, the guide element allows a displacement of the blocking and / or coupling element, so that the actuating element 1 can be moved.

In the illustrated embodiment, the lower surface in the figure acts 5.5 of the control 5 as a control surface. The control is in a cavity or slot 2.4 in the shutter stator 2 available. This is not a necessity; Rather, other geometric arrangements can act in the manner according to the invention.

The actuating element may be a locking element, or it may be operatively connected to a locking element, for example via an actuating projection provided directly on the actuating element or via a separate driven part.

In the examples described above, the blocking and / or coupling element 3 designed as a blocking element, ie in its first (blocking) position, it prevents movement of the actuating element relative to the closing device stator. In 9a to 9c is still shown an embodiment in which the blocking and / or coupling element acts as a coupling element. This means that in its second position the actuating element is coupled to an output device - this can be operatively connected to a locking element or can have the locking element itself - couples. When the blocking and / or coupling element is in its first position, the actuating element is decoupled from the output device, ie a movement of the actuating element has no influence on the locking state. It may, for example, be provided that the actuating element is then freely rotatable, or that it is additionally provided by separate means (eg separate tumbler / counter-hold pairs) and / or by the blocking and / or coupling element in its first position relative to the closing device. Stator is blocked.

9a to 9c show a lock cylinder with a lock cylinder stator 2 and a lock cylinder rotor 1 , Through the lock cylinder rotor 1 is an output element 51 operable, which is in operative connection with locking means. In addition, the locking device has a plurality of blocking and / or coupling elements 3 (whose function could in principle also be perceived by a single blocking and / or coupling element), which in a second position ( 9a and 9b ) the lock cylinder rotor with the output element 51 couple. 9a and 9b show the configuration in which the control is in its first position. The blocking and / or coupling elements 3 are in from recesses 1.2 in the lock cylinder rotor 1 and through recesses 51.2 in the output element 51 formed interiors. In the lock cylinder stator 2 are continuous recesses 2.2 present, in which, for example, pen-like intermediate parts 52 are located. The recesses 1.2 in the lock cylinder rotor 1 and a guide surface 3.1 the blocking and / or coupling elements 3 are coordinated so that a shearing force between the lock cylinder rotor 1 and the driven element causes the blocking and / or coupling elements 3 from the recesses 1.2 be pushed away in the rotor. By queuing at the intermediate parts 52 or - if the rotor and the output member are in a wacky position - by queuing on an inner surface of the lock cylinder stator but a displacement of the blocking and / or coupling elements 3 from the recesses 51.2 prevented from the second to the first position, and the output element 51 remains on the lock cylinder rotor 1 coupled.

9c shows the control 5 - Which at the same time the rotor of the piezo motor 5 . 6 is - in his second position. The intermediate parts 52 and thus also the blocking and / or coupling elements 3 can dodge radially outward when between the lock cylinder rotor 1 and the output element 51 a shearing force acts. Upon rotation of the lock cylinder rotor 1 Consequently, the blocking and / or coupling elements 3 from the openings 1.2 in the lock cylinder rotor 1 pushed out, whereby the lock cylinder rotor is decoupled from the output element. The lock cylinder rotor 1 can turn "empty" as in 9c shown. In addition, in the drawn configuration by the blocking and / or coupling elements 3 in this first position also the output element 51 to the lock cylinder stator 2 coupled so that it is also blocked. This can be seen in 9c because the blocking and / or coupling elements 3 the shear line between output element 51 and lock cylinder stator 2 blocked. In the illustrated configuration, the blocking and / or coupling element acts 3 So both as a blocking and as a coupling element. But there are also conceivable configurations in which it acts only as a coupling element and not blocked an output element against the lock cylinder stator.

In the embodiments described above, the control element 5 one each as a stop surface for the blocking and / or coupling element 3 acting control surface 5.5 on. The arrangements shown and described similar arrangements are also possible with positively driven blocking and / or coupling elements. Thus, for example, in arrangements in which the control is moved locally transversely to the direction of movement of the blocking and / or coupling element, the blocking and / or coupling element have a guide projection in a laterally adjacent to the blocking and / or coupling element groove of Controls. The groove can now be formed so that its position in the direction of movement of the blocking and / or coupling element changes in function of the position of the guide element, so that the blocking and / or coupling element is displaced continuously along its direction of movement during a movement of the guide element. Many other types of forced guidance are possible.

Claims (20)

Lock cylinder, comprising a lock cylinder stator (2) and a lock cylinder in the stator (2) mounted and relative to this rotatable lock cylinder rotor (1) and a blocking and / or coupling element (3, 22) which between a first and a second position relative to the lock cylinder stator (2) and / or the lock cylinder rotor (1) is movable, wherein the lock cylinder is in a locked state when the blocking and / or coupling element is in its first position, characterized by a Control (5) and a piezomotor comprising a fixed part and a moving part, wherein the moving part is movable relative to the fixed part, wherein the control element (5) is movable by the driving action of the piezo motor between two positions, wherein it in a first position the blocking and / or coupling element (3, 22) is not possible to assume either its first position or its second position, and it in a second Stel ment allows movement of the blocking and / or coupling element (3, 22) in the first and second position. Lock cylinder after Claim 1 , characterized in that the lock cylinder rotor (1) is provided with a driven means, operatively connected or connectable, by which a locking element is actuated. Lock cylinder after Claim 1 , characterized in that the lock cylinder rotor (1) by a door handle, a door knob, another actuating means or by an electric drive is rotatable and provided with a driven means, operatively connected or connectable, by which a locking element is actuated. Lock cylinder according to one of the preceding claims, characterized in that the control element (5) is the moving part of the piezo motor or is fixedly connected to the moving part of the piezomotor. Lock cylinder after one of the Claims 1 to 3 , characterized in that the control element (5) is forcibly guided by the moving part (31) of the piezo motor. Lock cylinder according to one of the preceding claims, characterized in that the piezomotor comprises an annular rotor (5, 31) and an annular stator (6), wherein the lock cylinder rotor (1) is formed by the ring formed by the annular rotor and the annular stator extends. Lock cylinder according to one of the preceding claims, characterized in that the control element (5) has a control surface (5.5) which forms a stop surface for the blocking and / or coupling element (3), wherein the location of which the blocking and / or Clutch element (3) on the control (5) is present, moves when the control element (5) between the first and the second position is moved. Lock cylinder after one of the Claims 1 to 6 , characterized in that the blocking and / or coupling element (3, 22) is forcibly guided by the control element (5). Locking cylinder according to one of the preceding claims, characterized in that a movement of the control element (5) between the first and second position in the region of a contact surface between the blocking and / or coupling element (3, 22) and the control element (5) transversely to a direction of movement of the blocking and / or coupling element (3, 22). Lock cylinder after Claim 9 , characterized in that either the control element (5) or the blocking and / or coupling element (3) or both the control element and the blocking and / or coupling element in the region of the contact surface has or have a guide surface (5.5, 3.1) which is at an angle other than 90 degrees and 0 degrees both to the direction of movement of the blocking and / or coupling element and the direction of movement of the control, such that when the control is moved, movement of the blocking and / or coupling element in to about vertical direction can be effected. Lock cylinder according to one of the preceding claims, characterized in that the blocking and / or coupling element is a tumbler (22) or Gegenzuhaltung (23) of the lock cylinder, wherein the lock cylinder is a mechanically coded lock cylinder. Lock cylinder according to one of the preceding claims, characterized by locking and / or coupling element additional Zuhaltungs- and Gegenzuhaltungspaare for cooperation with a mechanically coded key shank, wherein a non-matching key (21) brings at least one tumbler and Gegenzuhaltungspaar in a blocking position. Locking cylinder according to one of the preceding claims, characterized by a locking element (41) which is movable between a first and a second position relative to the lock cylinder stator (2), wherein in its first position, a removal of the lock cylinder from a housing or other device can prevent, wherein a guide element in a first position does not allow the locking element to take either its first position or its second position and in a second position allows movement of the locking element in its first and second position, and wherein the guide element by the driving force of a Piezo motor between the first position and the second position is movable. Lock cylinder after Claim 13 , characterized in that the guide element is the control element (5). Lock cylinder after Claim 13 or 14 , characterized in that the locking element (41) in its first position prevents removal of the lock cylinder by blocking a fastener (43) which precludes removal of the lock cylinder. Lock cylinder according to one of the preceding claims, characterized in that the blocking and / or coupling element (3, 22) in its first position partially in a recess (2.2) in the lock cylinder stator (2) and partially in a recess (1.2) in the lock cylinder rotor (1) and thus blocks a shear line between the lock cylinder stator and the lock cylinder rotor. Lock cylinder after Claim 16 , characterized in that a direction of movement of the blocking and / or coupling element (3, 22) transversely to the shear line between the lock cylinder rotor (1) and the lock cylinder stator (2) and the shear line to an approximately vertical surface portion of the block - And / or coupling element abuts when this is in its first position, and either at an angle to the direction of movement and the shear line forming surface portion of the blocking and / or coupling element, or vice versa provided with a ramp surface portion of the lock cylinder rotor (1) or lock cylinder Stators (2) in the shear line to an edge of the blocking and / or coupling element abuts when the blocking and / or coupling element is in its second position. Lock cylinder according to one of the preceding claims, characterized in that the blocking and / or coupling element (3, 22) in its first position, a movement of the lock cylinder rotor (1) and / or a driven means, by which a locking element is actuated relative to the lock cylinder stator (2) prevented. Lock cylinder according to one of the preceding claims, characterized in that the blocking and / or coupling element (3) in its second position but not in its first position, the lock cylinder rotor coupled to a driven means through which a locking element is actuated. Locking cylinder according to one of the preceding claims, wherein the lock cylinder rotor (1) has a key opening (1.1), and wherein the lock cylinder has at least one tumbler (22) and a counter-tumbler (23) cooperating therewith, wherein in the locked state of the lock cylinder, the tumbler (22) and the Gegenzuhaltung (23) together in one of recesses (1.2, 2.2) in the lock cylinder stator (2) and in the lock cylinder rotor (1) are formed space wherein between the tumbler (22) and the Gegenzuhaltung (23) a contact surface is formed, which can be aligned so relative to a contact surface between the lock cylinder rotor (1) and the lock cylinder stator (2) that a rotation of the lock cylinder Rotor (1) is not blocked relative to the lock cylinder stator (2), wherein in such a rotation, the tumbler (22) with the lock cylinder rotor (1) is rotated and the Gegenzuhaltung (23) in the lock cylinder stator (2) remains . and wherein, when no key is inserted into the keyhole (1.1), the tumbler (22) is urged against a stop by a spring force and protrudes into the keyhole (1.1) and slidable by inserting a key (21) against the spring force, wherein the control element (5), which is movable between the first and second positions, in the first position prevents the ingestion of a position of the tumbler (22) or counter-tumbler (23) into which the tumbler (22) or counter-tumbler (23) can arrive when the control (5) is in the second position.

Images