EP0668422B1 - Locking mechanism for a lock - Google Patents

Abstract

The lock has a housing (2) with a core (6) that is reversibly moved between locking and unlocking end positions. There is a blocking device (20) compressed against the core by springs, engaging with a recess (34) in the core when the latter is in a certain locking position, preventing it from unauthorised movement. An electromagnetically-operated gate is used to stop the engagement of the block. Once the engaging face (32) of the block has entered the recess, it cannot be pushed back against the spring force.

Description

The invention relates to a locking mechanism for a Lock, comprising a stored in a housing Locking element, which - starting from a locking end position - from a range of locking positions, in which there is the lock in the locked state holds in one with the unlocked state of the The corresponding unlocking position of the lock is reversible is movable to unlock or lock the lock lock, and a blocking device with one in the Housing movably guided blocking element, the under Preload towards the locking mechanism element in at least one predetermined locking position of the Locking mechanism element with a locking mechanism element adjacent engaging portion in a predetermined one Locking position of the engagement section opposite recess of the locking mechanism element engages to thereby engage a blocking edge the recess the locking mechanism element against unauthorized persons Moving out of the range of locking positions to secure, and with one by means of a control device controllable electromagnetic locking device for Locking the blocking element in a predetermined Position, wherein the engagement portion of the blocking element is designed relative to the depression in such a way that when it is inserted into the recess relative to the Blocking flank comes in a position in which it opposes the Effect of the bias of the blocking element not from the blocking flank are displaced from the recess can, and wherein the electromagnetic locking device is operationally set up and can be activated, to lock the blocking element in a release position, in which it does not protrude into the recess in order to Engage the blocking element in the recess prevent and the locking mechanism element to move in release the unlocked position.

They are locking mechanisms in the form of locking cylinders known in which the rotatable by means of a key Lock cylinder core as a locking mechanism element usually through mechanical pin tumblers and additionally through an electromagnetically controllable blocking device against unauthorized twisting from its locked position can be secured. If the electromagnetically controllable Blocking device the cylinder core in the locking position blocked, the cylinder core can even with one regarding the mechanical pin tumblers "matching" key cannot be turned. The electromagnetic controllable blocking device therefore offers the possibility to provide locking authorization criteria, which have the requirement of a mechanically matching one Use the key to operate the locking cylinder to have to go out.

In this context, it has already been proposed remote control the blocking device and for example only at certain times of the day to block the To use the lock cylinder core. At the rest of the day can the lock cylinder with a mechanical suitable key can be operated. It is also already been proposed to use keys as carriers or Generator of electrical and / or magnetic locking authorization information train that from a corresponding reading device of the in the lock cylinder inserted key can be detected. Recognize that control device cooperating with the reading device to control the blocking device from Key-supplied information as valid locking authorization information on, it activates the Blocking device in that the latter the Lock cylinder core releases for rotation.

A locking mechanism of the type mentioned is for example in Figures 1-5 of EP-A-0 388 997 shown and explained in the description of EP-A-0 388 997.

The blocking device of the known locking mechanism releases the cylinder core to the unlock position free, provided the control device is operated by a relevant key in the key channel of the lock cylinder electrical locking authorization information receives the key as suitable for the locking mechanism identify. The blocking element is a cylindrical one Blocking pin, which in the locked position in a cylindrical recess on the circumference of the lock cylinder core intervenes. Engaging the locking pin in the Cylinder core recess and also the disengagement of the blocking pin is carried out from the cylinder core recess Activation of an electromagnet, in which a coil ring within a permanent magnet arrangement by appropriate Switching current pulses between one with the locking position of the locking pin corresponding first position and one with the unlocked position of the blocking pin corresponding to the second position can be moved back and forth. The coil ring is over one bistable snap spring mechanism with the blocking pin connected, the snap spring mechanism the coil ring in its respective end position (first position or second position) stabilized. So is a lock authorized Key into the key channel of the locking cylinder has been inserted, so the control device a switching current pulse to the coil ring, whereupon the coil ring from its first position in passes its second position and thereby the bistable Snap spring mechanism switches. The snap spring mechanism pulls the locking pin out of the cylinder core recess, so that the cylinder core is now rotated can be. If the key is then after the Deducted the locking process, so the key withdrawal movement from a separate sensor of the blocking device registered, whereupon the control device delivers a switching current pulse to the coil ring, which is then moved to its second position to insert the locking pin into the cylinder core recess.

In the construction according to EP-A-0 388 997 the Drive mechanism (permanent magnet arrangement, coil ring and leaf spring mechanism) of the blocking device Extensively designed. The magnetic drive must also be dimensioned sufficiently strong to the Switch the bistable leaf spring mechanism reliably to be able to and the locking pin in the Press in or pull out the cylinder core recess can. Another disadvantage is that the introduction of the Blocking pin in the cylinder core recess only under Actuation of the electromagnet is possible and a separate one Key withdrawal motion sensor is required to actuate the electromagnet for the purpose of Trigger interlock.

A locking mechanism is described in EP-A-526 904, which is also a locking cylinder for Mortise locks. The lock cylinder core is - Starting from a key withdrawal and locking position - in an unlocking angle position movable to unlock the lock. To secure against unauthorized rotation of the cylinder core from the Locking position is in addition to mechanical Pin tumblers an electromagnetically controllable blocking device intended. This has a means a compression spring in constant contact with the cylinder core prestressed, perpendicular to the axis of the cylinder core axially displaceably guided locking pin on the supported on the circumference of the cylinder core and in the key withdrawal position of the cylinder core with its the cylinder core adjacent axial end into a conical Countersunk bore of the cylinder core engages. To secure of the cylinder core against unauthorized twisting Blocking pin in the known lock cylinder in the corresponding engagement position to be fixed prevent it from rotating when the cylinder core Oblique surface of the counterbore displaced from the counterbore becomes. To lock the locking pin in its position in the cylinder core is a Electromagnet provided. The electromagnet includes one elongated coil, with a transverse to the axis of the locking pin between a blocking pin in its engaged position fixing locking position and one Blocking pin releasing position movably guided Coil core as an anchor. The anchor is in the locked position at the end of the locking pin remote from the cylinder core and thus prevents the retraction movement the blocking pin from its engaged position. Only in this state of the well-known lock cylinder the inclined surface of the counterbore on the cylinder core circumference as a blocking edge. Once the anchor is out of the Retraction path of the locking pin is moved out, can the locking pin by rotating the cylinder core from the Oblique surface are displaced, so that the blocking device no longer secures the cylinder core.

The electromagnet of the known from EP-A-526 904 Locking mechanism has a return spring that the Anchor for movement in one of the mentioned anchor positions biases and their bias from the electromagnet must be overcome to excite the anchor by excitement Move the coil to the other anchor position in question. Because the anchor is actively blocking the blocking pin participates in its engaged position, he is with the to dimension the known locking mechanism sufficiently strong, if necessary when attempting to rotate the cylinder core axial pressure forces exerted on the blocking pin to be able to record, the electromagnet or Return spring of the armature should be dimensioned that they are able to release the anchor for locking move out of his locked position even if he exposed to forces introduced via the blocking pin is. In addition, the armature stroke of the electromagnet comparatively long in the known locking mechanism must be trained so that a reliable locking the blocking pin in its engaged position on the one hand and a reliable release of the blocking pin on the other hand, realizable and alternately adjustable is.

These dimensioning conditions for the electromagnet can only be by a comparatively strong electromagnet meet, which is naturally large fails and therefore usable for other measures and takes the desired space and the one accordingly large electrical energy requirement for movement of the anchor, if always reliable function of the known Locking mechanism should be ensured.

The invention has for its object a locking mechanism of the generic type, in which a reliable function of the blocking device with a electrically and geometrically smaller sized electromagnetic Locking device in a simple way is realizable in an energy-saving manner.

To solve this problem, the invention proposes that the recess of the locking mechanism element in the locking end position with respect to the engagement section the blocking element is offset so that the Do not engage the engaging portion in the recess can, and that a) the depression on that of the blocking edge opposite side has a cam flank or b) the engaging portion has a cam surface having one opposite the blocking flank Flank of the recess cooperates to the in the predetermined locking position of the locking mechanism element engaging portion engaging the recess to displace from the deepening if that Lock mechanism element, starting from the predetermined Locking position, in the direction of the locking end position is moved, whereby the blocking element in a Release position is transferred, in which it is by means of electromagnetic locking device can be locked, around the locking mechanism element for movement into the unlocking position to release.

The blocking element and the recess are relative designed and arranged to each other in such a way that due to the bias of the blocking element a self-holding Blocking of the locking mechanism element without participation the electromagnetic locking device can take place to protect the locking mechanism against unauthorized persons Moving out of its range of locking positions to secure. The realization of this Basic ideas lead to the subject of the present Invention at favorable force and load ratios for the electromagnetic locking device, since this has no forces to absorb, possibly on the locking element be exercised. The electromagnetic Locking device must only be able to Blocking element if necessary in the release position fix or release from the release position. This can be reliable with comparatively small forces respectively. The electromagnetic locking device can dimensioned accordingly to save space and energy without sacrificing reliability to have to do.

The locking mechanism according to the invention is suitable for Combination with a variety of differently designed Locks and is not on a lock cylinder limited. All that matters is that a Lock mechanism element is provided, which for unlocking the lock is forcibly moved and unlocked of the lock if it prevents this Movement is prevented. The locking mechanism element can therefore any element in the lock mechanism of a lock, starting from a closing element to be operated by the user, such as the lock cylinder core of a lock cylinder, down to a deadbolt that falls into a trap or locking bolt receptacle for locking the lock intervenes.

As mentioned, the recess of the locking mechanism element geometrically arranged such that they are in the locking end position of the locking mechanism element compared to the Engagement portion of the blocking element is offset, so that the engaging portion is not in the recess can intervene, with the depression on that of the blocking flank opposite side a control curve flank has the in the predetermined locking position of the locking mechanism element in the recess engaging engaging portion displaced from the recess, if the locking mechanism element, starting from the predetermined locking position in the direction of the locking end position is moved, causing the blocking element is transferred to its release position in which it by means of the electromagnetic locking device is lockable to the locking mechanism element for movement release in the unlocked position.

These measures allow the blocking element to pass through Movement of the locking mechanism element and thereby in one for fixation by the electromagnetic Locking device provided release position bring in. However, the locking mechanism element only moved in the range of locking positions, so that the blocking element without separate actuating means or other cam controls in the locked Condition of the lock to be moved if necessary can. Unless the blocking element by the electromagnetic Locking device in its release position is locked, it is always ensured that the blocking element with the blocking edge of the recess interacts when trying the locking mechanism element, starting from the predetermined one Locked position, towards the unlocked position move. The control of the blocking element in the release position can alternatively also take place in that the engagement portion of the blocking element has a cam flank has that with one of the blocking edge opposite flank of the depression cooperates, to displace the blocking element from the recess, when the locking mechanism element to its locking end position is moved there. The cam flank is from an inclined surface - not necessarily smooth - is formed.

According to a particularly preferred embodiment of the invention is the blocking element as axially movable in the Housing guided locking pin trained, the under the effect of its preload with an axial End supported on the locking mechanism element and in the predetermined Locking position of the locking mechanism element engages with the axial end in the recess. The Electromagnetic locking device preferably comprises a locking member that is between a non-locking Position in which it leaves the blocking pin unaffected, and a locking position in which it is for locking the Blocking pin with the blocking pin in its release position is engaged, guided movably in the housing - and by activating the electromagnetic Locking device is movable into the locked position.

An axially movable blocking pin is opposite differently shaped and possibly other movements, for example Rotational movements, executing blocking elements For reasons of easier manufacture and for reasons the comparatively compact design option of the Preferred.

The locking member is preferably an armature of an electromagnet the electromagnetic locking device.

The locking member is according to a particularly preferred one Embodiment as an axially movable coil core an electromagnetic coil of electromagnetic Locking device trained. The coil core has one Longitudinal axis running transversely to the axis of the blocking pin and forms a locking pin by energizing the coil is movable into the locked position in which it is in a the release position of the blocking pin to the coil core aligned recess of the locking pin engages. The depression can be, for example, one on the circumference of the blocking pin circumferential groove. The so trained electromagnetic locking device can be very compact. It is with the given Forces and loads in particular not required a deep incision in the Locking pen for reliable and safe intervention to be provided by the coil core. Consequently can be used to insert the coil core into the blocking pin recess required stroke of the coil core short be kept. The current requirement of the coil for execution the core stroke is accordingly small, what the Demand for energy saving also meets and the use of appropriately weak and small trained Allows electromagnets.

Preferably, the bias of the locking pin applied by a spring. In a particularly preferred Design has the recess of the locking pin and / or the coil core on its the blocking pin adjacent end on a slope to the in Locking position of the coil core when not excited Coil from the recess of the blocking pin through the To displace the blocking pin when the Locking pin under the spring preload from its release position emotional. Such a configuration of the electromagnetic locking device allows to dispense with a return spring for the coil core. This has not only in the sense of a reduction in the number of the individual parts and in the sense of simplifying the Building meaning, but provides the freedom that the To dimension the coil comprising electromagnets even weaker and further miniaturize accordingly, since it is not against the force of a return spring of the coil core must work and that of the spring of the locking pin exerted on the coil core above the blocking pin Force can be kept comparatively small.

According to a further development, the movable coil core is made of a non-ferromagnetic material, in particular made of brass, and in a fixed, the Hollow cylindrical core sleeve passing through the coil ferromagnetic material guided axially, wherein the electromagnetic locking device on the The blocking pin removed the front end of the coil towards the spool and held movably away from the spool Lever, in particular in the form of an anchor plate, that is attracted to the coil when the coil is excited is to be on the end of the To press the core and the core in the locked position to postpone. The anchor plate can be loosely in one on the front side removed from the blocking pin Be added to the end of the coil adjacent chamber. A such design of the electromagnet is simple and a few individual parts can be implemented cost-effectively. In particular, the magnetic flux does not have to be above the movable one Coil core are guided. This makes it possible to guide the magnetic flux so that it does not has to overcome several air gaps. By doing this the power yield is increased or the energy requirement reduced with the same force. The dimensions the electromagnetic locking device can accordingly be reduced even further.

In this context it should be noted that also the heat development of the excited coil comparatively is low. The electromagnet can therefore be used if necessary Constant current control can be operated continuously, without taking damage, with no compromise in terms on the operational reliability of the electromagnetic Locking device must be made.

According to a further embodiment of the invention, this is Locking member in a transverse to the axis of the locking pin running guide channel movably guided sliding body or rolling body, in particular spherical body, which in its locked position in a in the release position of the Blocking pin aligned essentially to the guide channel Deepening, especially around the circumference Ringnut, the blocking pin engages and the to his Movement into the blocking position of a drive element, especially from the armature of an electromagnet of the electromagnetic Locking device can be acted upon. In In this context it is proposed that the electromagnetic Locking device an electromagnetic Coil with a substantially pin-shaped, axially movable guided coil core as an anchor, the axial aligned with the guide channel of the locking member and in Direction to the axis of the locking pin is movable to to push the locking member into the locking position. At a such embodiment with a locking member that is not rigidly connected to a drive element manufacturing and functional Advantages. In particular, the manufacturing is regarding compliance with tolerances facilitated.

According to another embodiment of the invention the electromagnetic locking device an electric motor and a locking member driven by the electric motor, that can be brought into engagement with the blocking element is to lock the latter in its release position.

The locking member can be a spindle-nut drive locking pin driven axially by the electric motor, the one in the release position of the blocking element recess of the blocking element aligned with the locking pin can intervene to the blocking element in the Lock release position. Such a solution allows to turn off the electric motor after it brought the locking member into engagement with the locking pin Has.

According to a variant of the latter configuration the electric motor carries a rotatable in a locked position Locking arm, which in its locked position in a recess of the blocking element engages around the blocking element to fix in the release position. Also at In this variant, it is sufficient to target the electric motor to be actuated only until the blocking member is in the blocking position is or moved out of its locked position is.

According to a development of the invention, the locking mechanism element Part of a using a suitable key lockable locking mechanism for operating the lock, the key between the key and the Interchangeable locking system, from the control device to Actuation of the electromagnetic locking device Checking electrical and / or magnetic locking authorization information that carries him as to the locking mechanism Identify appropriately, and being the control device is set up when the appropriate one is recognized Key the electromagnetic locking device Locking the blocking element in its release position to activate.

Alternatively or additionally, the electromagnetic Locking device can be designed to be remotely controllable, for example in order to be able to provide locking options depending on the time of day.

According to a particularly preferred embodiment of the invention is the locking mechanism as a lock cylinder, especially designed for a mortise lock, wherein the locking mechanism element in the lock cylinder housing rotatably mounted about its axis by means of a suitable key is rotatable lock cylinder core and wherein a blocking pin is provided as the blocking element is that axially displaceable transversely to the axis of the cylinder core is guided and on the circumference of the cylinder core supports, the locking pin in the predetermined Locked position of the cylinder core with his the end adjacent to the cylinder core in the circumference the recess provided under the effect its bias engages, unless it through the electromagnetic locking device in its Release position is locked. The lock cylinder core can be a trigger position in the locking positions take in the key in a key channel of the cylinder core insertable and from the key channel can be pulled out, the recess of the cylinder core in the withdrawal position from their with the predetermined one Corresponding locking position of the cylinder core Alignment position relative to the locking pin is twisted so that the locking pin in one for locking by the electromagnetic locking device Ready position on the circumference of the cylinder core is supported and the recess arranged in this way is that it has its alignment position relative to that Locking pin reached when the cylinder core, starting out from the trigger position, towards the unlocking position is rotated so that the locking pin under its pretension can snap into the recess, provided not from the electromagnetic locking device is locked. The cylinder core can therefore with a mechanically matching key from the trigger and Lock position out by a certain angle be twisted without, however, the area of contiguous Leave locking angle positions. As soon as the predetermined locking position is reached in which the locking pin can snap into the recess, the blocking pin comes with a blocking flank of the recess in blocking contact so that turning continues the cylinder core in the direction of the unlocking position, which may only take several complete revolutions of the Cylinder core is reached, is made impossible.

The depression preferably has on its blocking flank opposite side a control curve flank which displaces the blocking pin into its release position, if the cylinder core, starting from the predetermined Locked position, in the mentioned trigger position is turned back. It should be noted that the lock cylinder thus constructed with a mechanical matching key always in its trigger and locking position is rotatable so that one for unlocking of the castle unauthorized person that Lock lock but can not unlock.

According to a variant of the lock cylinder core is one further recess for the intervention by the blocking pin intended. In this further deepening Blocking flank and cam flank on the circumference of the Lock cylinder geometrically relative to said recess reversed. This ensures that the blocking pin is blocking in the further recess can intervene when the cylinder core, starting from an unlocked position, towards that Range of locking positions is moved. In this In case the lock cannot be locked, provided the locking pin is not from the electromagnetic locking device is fixed in its release position. This can prevent one from not authorized person locks the lock.

The lock cylinder according to the invention can be designed in this way be that it is only through the blocking device can be secured. The locking cylinder is preferably however provided with mechanical tumblers that the locking cylinder core against unauthorized turning from the area of locking positions, in particular from the trigger and locking position. The mechanical tumblers are known Way in their by a mechanically fitting key the cylinder core for rotation releasing position.

For the locking cylinder according to the invention can also be summarized be found that the blocking pin under the effect of its bias automatically into the Can intervene and with the blocking edge the recess engages in such a way that over the blocking flank does not displace the blocking pin Axial forces can be exerted on the locking pin. At this self-locking blockage of the cylinder core does not take the electromagnetic locking device part. Since their job is to put the locking pin in to fix its release position and this fixation can be ensured with comparatively small forces can, it is possible, preferably as an electromagnet trained electromagnetic locking device accordingly weakly dimensioned and miniaturized. The energy requirement of the electromagnetic locking device is comparatively low, so that the electrical Supply - if desired - by battery can be done. This allows complicated cabling avoid.

The low energy requirement of the locking mechanism according to the invention and the possible battery supply for the electromagnetic locking device makes the locking mechanism for portable locks, such as bicycle locks, available.

According to a further, particularly preferred embodiment the invention is the locking mechanism for a padlock, In particular, long-latch lock provided that one Has lock body and a striker that in locked state of the lock on both leg sections is connected to the lock body, namely in the way that at least one leg section into a Leg engages the lock body and in it through a movably guided inside the lock body in a locking engagement surface of the leg section engaging locking bolt which is locked Unlocking the lock in a thigh section releasing to move out of the thigh receptacle Unlocking position is movable, the locking mechanism element of the locking mechanism according to the invention the locking bolt is formed. The locking bolt is preferably as transverse to the axis of the leg receptacle axially displaceable locking rod formed, where the blocking element under the effect of its bias on a circumferential side of the recess Locking rod is supported transversely to the axis of the locking rod. The The depression is preferably formed by a milling, the one essentially orthogonal to the axis of the Barrier rod running, forming the blocking flank Flank on their side closer to the thigh mount and an inclined flank on their legs further lying side, the recess relative to the engaging portion of the blocking element in Direction to the thigh receptacle is offset when the Locking rod is in its locking end position. The Blocking element is preferably a blocking pin that guided axially movable transversely to the axis of the locking rod is.

Preferably, one is connected to the control device Device for providing locking authorization information provided by a user, whereby the control device the electromagnetic locking device to lock the blocking element in it Release position after provision of predetermined Lock authorization information activated. The facility to provide locking authorization information includes in particular means for the adjustment of Character combinations as locking authorization information.

The lock body has in particular a battery chamber Inclusion of at least one battery for the electrical Supply of the electromagnetic locking device and the control device.

According to a particularly preferred development of the invention the locking mechanism has a circuit the electromagnetic locking device depending opening from the position of the locking mechanism element or closing switching device on the circuit at least keeps closed when the recess the locking mechanism element in one for the engagement the blocking element is suitable position. Such Design of the locking mechanism is not on a certain type of lock, but can for example in connection with the invention Lock cylinder or in connection with the mentioned padlock be provided.

The switching device is especially for an electromagnetic Locking device with electromagnet proposed, around the coil current for locking the blocking element to flow only when that Blocking element not anyway from the locking mechanism element is held in the release position. This allows an even greater saving in electrical energy achieve what is particularly valuable in a solution with battery operation.

The switching device preferably has a mechanical one Switch that keeps the circuit open when that Lock mechanism element is in its locking end position and when the locking mechanism element is in its unlocked position is. These two positions of the locking mechanism element are usually positions that last longer Time to be taken. The switching device ensures that then no electrical energy is consumed. The control device provides voltage when the lock is released ready, which, however, only causes a coil current to flow, if the switching device the coil circuit closes. This occurs when the locking mechanism element is off one of the above, usually over a longer period positions taken in the direction of the concerned other position is moved. The locking of the Blocking element is done in good time before the blocking element can move into the recess, so that the operational reliability is given. If however no locking authorization should be given no voltage provided by the control device, so that the blocking element regardless of the state of the Switching device ready for blocking or in its blocking position.

The invention also relates to a padlock a locking device according to the invention.

It should be emphasized that the locking device according to the invention with an electromagnet and one of the electromagnet moving coil core preferably formed in such a way is that the coil core is transferred to its locked position when the coil is energized electrically. According to one alternative variant of the locking mechanism according to the invention However, it can be provided that the coil core biased to the blocking element by means of a spring is to with the blocking element in its release position to engage and the blocking element to lock with the coil not energized. The excitement the result of the coil is that the coil core opposes it deducted the biasing force of the spring from the blocking element is to the blocking element to secure the To release the locking mechanism element. The activation of the electromagnetic locking device for locking the Blocking element in this case is that the Coil current is switched off.

Figur 1

zeigt als erstes Ausführungsbeispiel einen Schließzylinder in einer Teilschnitt-Seitenansicht mit in Verriegelungs- und Abzugsstellung befindlichem Zylinderkern.

Figur 1A

zeigt die Schnittebene eines mit IA in Figur 1 gekennzeichneten Querschnitts durch den Schließzylinder nach Figur 1.

Figur 2

zeigt ein gebrochen dargestelltes Detail des Schließzylinders in einer der Figur 1 entsprechenden Schnittseitenansicht, wobei der Schließzylyinderkern mittels eines Schlüssels aus der Abzugsstellung herausgedreht und von einem Blockierstift in Eingriff genommen ist.

Figur 2A

zeigt den mit IIA in Fig. 2 identifizierten Querschnitt des Schließzylinders in dem in Fig. 2 gezeigten Zustand.

Figur 3

zeigt eine der Figur 2 entsprechende Ansicht des Schließzylinders in gegenüber der Figur 2 unveränderter Stellung des Schließzylinderkerns, wobei der Blockierstift nicht mit dem Schließzylinderkern in Eingriff steht.

Figur 3A

zeigt den durch IIIA in Figur 3 identifizier ten Querschnitt des Schließzylinders in dem in Figur 3 gezeigten Zustand.

In Figur 4

ist anhand eines der Figur 1A entsprechenden Schnittes eine Variante des Schließzylinders nach den Figur 1 bis 3A gezeigt, wobei der Zylinderkern in einer Schlüsselabzugsstellung ist.

Figur 5

zeigt ein erfindungsgemäßes Langbügelschloß in einer Teilschnittdarstellung mit eingestecktem Schloßbügel.

Figur 6

zeigt eine Schnittdarstellung des Bügelschlos ses mit dem in Figur 5 durch VI identifizierten Schnitt im verriegelten Zustand.

Figur 7

zeigt das Langbügelschloß im entriegelten Zu stand mit abgenommenem Schloßbügel in einer der Figur 5 vergleichbaren Ansicht.

Figur 8

zeigt einen Schnitt durch das entriegelte Bü gelschloß mit der in Figur 7 durch VIII identifizierten Schnittebene.

Figur 9

zeigt eine Teildarstellung des Bügelschlosses in einer den Figur 6 und 8 entsprechenden Schnittansicht, wobei der Schließbügel nicht zur Entriegelung freigegeben ist.

Figur 9A

zeigt eine der Figur 9 entsprechende Ansicht, wobei der Schließbügel zur Entriegelung freigegeben ist.

Figur 10

zeigt die Unterseite des Bügelschlosses entsprechend der in Figur 5 mit X gekennzeichneten Blickrichtung.

Figur 11

zeigt eine alternative Ausgestaltung bezüglich der Zuordnung von Blockier- und Steuerkurvenflanken.

Figur 12

zeigt einen für den erfindungsgemäßen Sperrmechanismus verwendbaren Elektromagneten.

Figur 13

zeigt eine elektromagnetische Arretiereinrichtung mit einem Elektromotor.

Figur 14

zeigt eine weitere elektromagnetische Arretiereinrichtung mit einem Elektromotor.

Figur 15

zeigt schematisch eine alternative Betriebsweise eines elektromagnetischen Sperrmechanismus mit einem stromlos in Sperrstellung vorgespannten Sperrstift.

Figur 16

zeigt eine weitere Ausführungsform einer für einen erfindungsgemäßen Sperrmechanismus verwendbaren Blockiereinrichtung.

The invention is explained in more detail below using exemplary embodiments with reference to the figures.

Figure 1

shows as a first embodiment a locking cylinder in a partial sectional side view with the cylinder core in the locking and withdrawal position.

Figure 1A

shows the sectional plane of a cross section marked IA in FIG. 1 through the locking cylinder according to FIG. 1.

Figure 2

shows a broken detail of the lock cylinder in a sectional side view corresponding to Figure 1, wherein the lock cylinder core is rotated by means of a key from the trigger position and is engaged by a locking pin.

Figure 2A

shows the cross-section of the locking cylinder identified by IIA in FIG. 2 in the state shown in FIG. 2.

Figure 3

2 shows a view of the lock cylinder corresponding to FIG. 2 in the position of the lock cylinder core unchanged compared to FIG. 2, the locking pin not being in engagement with the lock cylinder core.

Figure 3A

shows the cross-section of the locking cylinder identified by IIIA in FIG. 3 in the state shown in FIG. 3.

In Figure 4

a variant of the locking cylinder according to FIGS. 1 to 3A is shown on the basis of a section corresponding to FIG. 1A, the cylinder core being in a key withdrawal position.

Figure 5

shows an inventive long shackle lock in a partial sectional view with inserted lock shackle.

Figure 6

shows a sectional view of the U-lock with the section identified by VI in Figure 5 in the locked state.

Figure 7

shows the long-handle lock in the unlocked to stand with the lock bracket removed in a view comparable to Figure 5.

Figure 8

shows a section through the unlocked padlock with the cutting plane identified in Figure 7 by VIII.

Figure 9

shows a partial view of the padlock in a sectional view corresponding to Figures 6 and 8, wherein the striker is not released for unlocking.

Figure 9A

shows a view corresponding to Figure 9, wherein the striker is released for unlocking.

Figure 10

shows the underside of the padlock according to the viewing direction marked X in Figure 5.

Figure 11

shows an alternative embodiment with regard to the assignment of blocking and cam edges.

Figure 12

shows an electromagnet usable for the locking mechanism according to the invention.

Figure 13

shows an electromagnetic locking device with an electric motor.

Figure 14

shows a further electromagnetic locking device with an electric motor.

Figure 15

schematically shows an alternative mode of operation of an electromagnetic locking mechanism with a locking pin preloaded in the locked position.

Figure 16

shows a further embodiment of a blocking device that can be used for a locking mechanism according to the invention.

In Figure 1 is a partial sectional side view Double profile locking cylinder 1 shown, the particular is intended for mortise locks and a first one Embodiment of a locking mechanism according to the invention represents.

The locking cylinder 1 has a cylinder housing 2, that of two ring cylindrical parts 3, 3 'and one ring-cylindrical parts connecting flat Bridge 3 ''. The ring cylindrical parts 3, 3 ' include a lockable notch 4 between them, in which a lock bit 5 (locking nose 5) is received. There is one in each of the ring-cylindrical housing parts 3, 3 ' Lock cylinder core 6 rotatably mounted. In the figures 1 and 1A is one of the lock cylinder cores 6 in a locking position against unauthorized twisting shown securely. To secure the lock cylinder core 6 are mechanical pin tumblers in the usual way 7 provided, each of at least one core pin 8, a housing pin 9 and a tumbler spring 10 exist in corresponding bearing bores 11, 12. As long as the lock cylinder core 6 in the position shown in FIG locking position shown is a bearing bore 11 of the cylinder core 6 coaxial to a bearing bore 12 of the housing 2 aligned. In the bearing holes 11 and 12 are the core pin 8 and the housing pin, respectively 9 axially slidably mounted. As long as no mechanical matching key in the marked with 13 Key channel of the cylinder core 6 is introduced the tumbler pins 8, 9 by means of the tumbler spring 10 1, securing the cylinder core 6 Prestressed locking position in which the interfaces between the core pins 8 and the housing pins 9 opposite the peripheral surface 15 of the cylinder core 6 shifted are. The locking position shown in Figures 1 and 1A the cylinder core corresponds to a key withdrawal position, in which a mechanically matching one Key inserted into or out of the key channel 13 the key channel 13 can be pulled out. With the tumblers 7 corresponding mechanical codes of the key move the tumbler pins 8, 9 against the force of the tumbler spring 10 during insertion of the key so that the interfaces between the tumbler pins 8, 9 in an aligned position to the peripheral surface 15 of the cylinder core 6 come. The cylinder core 6 is then no longer due to the mechanical pin tumblers 7 blocked in the trigger position.

In the installed state of the lock cylinder 1 in one Lock holds the cylinder core 6 as an element of the locking mechanism of the castle in a known manner via the gearbox connected with it locking lug 5 movable and possibly via further elements which can be moved by means of the locking lug 5 a lock bolt (not shown) of the lock in locking engagement with a (not shown) Lock bolt receptacle, for example a locking bolt receptacle a striking plate on a door frame. A Rotation of the lock cylinder core 6 counterclockwise starting from a sufficiently large angle of rotation from the locking position shown in FIGS. 1 and 1A, leads in a known manner that the locking lug 5 the locking bolt (not shown) its engaged position moves the lock in the bring unlocked state in which the locking bolt is out of engagement with the locking bolt receptacle.

In addition to the mechanical pin tumblers 7 one the locking cylinder core 6 against unauthorized turning in a position corresponding to the unlocked state of the lock Securing the unlocking angle position Blocking device 18 is provided. The blocking device 18 includes a locking pin 20 which is substantially perpendicular to the axis 22 of the cylinder core 6 in one provided in the housing web 3 '' bearing bore 24 axially is guided. The blocking pin 20 has one facing away from the cylinder core 6, by reducing the diameter formed shoulder surface 26, that of a shoulder surface 28 of the bearing bore 24 is opposite. A extending between the shoulder surfaces 26, 28 Compression spring 30 tensions the locking pin 20 towards Cylinder core 6 forward. The blocking pin 20 is supported under the effect of this bias with its the cylinder core 6 adjacent end 32 on the circumference 15 of the cylinder core 6, as can be seen from FIGS. 1 and 1A is.

In the cylinder core 6 is a depression in the form of a Milled 34 provided that over a certain Tangential range of the cylinder core circumference 15 extends.

If the cylinder core 6 with a mechanically matching Key 14 (Figures 2 and 2A) counterclockwise rotated from the position shown in Figure 1A, so comes the recess 34 into one aligned with the blocking pin 20 Position in which the blocking pin 20 with its the cylinder core 6 adjacent end 32 under the effect the compression spring 30 engages in the recess 34, if he does not do so in the manner to be described below is prevented. The blocking pin is shown in FIGS. 2 and 2A 20 shown in its blocking position, in which it is in the recess 34 engages to counter the cylinder core secure further rotation counterclockwise.

As can be seen in particular from FIG. 2A, the Milling 34 two flanks 36, 38 converging towards one another on, the flank 38 in that shown in Figure 2A Position of the cylinder core 6, substantially parallel runs to the longitudinal axis of the locking pin 20, so that when trying to start the cylinder core 6 from the in 2 and 2A illustrated state, further opposite turn clockwise, only sideways the blocking pin 20 attacking shear forces on the Blocking flank 38 are exerted by the blocking pin 20 without changing its blocking position can. The other flank 36 of the cutout 34 runs in FIG the position shown in Figure 2A obliquely to the Blocking pin 20 and forms a cam flank that displaced the blocking pin from the recess 34 if the cylinder core 6, starting from that shown in FIG. 2A Clockwise position back to the trigger position 1A is rotated.

During the rotation of the cylinder core 6 from the in the figures 1 and 1A into the position shown in FIGS. 2 and 2A, the position becomes the cylinder core 6 only through a range of locking angle positions rotated in which the assigned lock in Installation status of the locking cylinder not yet opened is. The blocking device 18 therefore ensures that the cylinder core 6 with only a mechanically matching one Keys are not easily from a range of Locking positions can be turned and the lock therefore not easily in the unlocked state is transferable.

To unlock the lock by turning of the cylinder core 6 counterclockwise over the Angular range of the recess 34 in an unlocked position to enable includes the blocking device 18 an electromagnetic locking device 40, which is set up to block the blocking pin 20 in the in Figures 1, 1A and 3 and 3A shown release position to lock in which the blocking pin 20 with his End 32 only up to the radially outermost peripheral region of the cylinder core 6 is enough to engage the Blocking pin 20 in the recess 34 of the cylinder core 6 to prevent.

The electromagnetic locking device 40 comprises one Electromagnet 42 with an elongated coil 44, the Coil axis perpendicular to the axis of the locking pin 20 extends and one is movable along the coil axis guided coil core 46, the electrical Excitation of the coil 44 towards electromagnetically the blocking pin 20 is moved into a blocking position, in which it is adjacent to the blocking pin 20 axial end 48 in a on the circumference of the locking pin 20th circumferential annular groove 50 engages in the release position of the blocking pin 20 to that designed as a locking pin Coil core 46 is aligned. In Figure 3 is the locking pin 46 in its fixing the blocking pin 20 Position shown. The one locked in this way Blocking pin 20 can not in the recess 34 of the Engage the lock cylinder core 6 so that the cylinder core 6 about the locking position shown in FIGS. 2A and 3A out counterclockwise into his Unlocking position can be rotated.

The annular groove 50 of the blocking pin 20 is preferably formed as a V-slot, while the coil core 46 on his End 48 has a complementary V-tip. On in this way represents the lower one in FIGS. 1 to 3A Groove wall 52 an inclined surface ready, the coil core 46 when the coil 44 is not excited from the groove 50 of the Blocking pin 20 can displace if the blocking pin 20 an upward movement under the effect of its bias experienced in the direction of the cylinder core axis 22, as is the case when the blocking pin 20 engages in the recess 34 of the cylinder core 6. It therefore no special pre-tensioning means are required, around the core 46 in its non-locking position, in which is not in engagement with the blocking pin 20, to transfer when the locking pin is no longer through the electromagnetic locking device 40 fixed should be.

If desired, the annular groove 50 can also be arranged in this way be that their groove base in that shown in Figure 1 Support position of the blocking pin 20 slightly above the tip 48 of the coil core 46 towards the cylinder core 6 is offset so that the coil core 46 after excitation of the Coil 44 initially contacts lower groove wall 52 occurs and the blocking pin 20 against the effect its pretension moves slightly away from the cylinder core, until the bottom of the groove 50 with the tip 48 of the coil core is aligned. This way you can ensure be that there is no friction between the locked Blocking pin 20 and the cylinder core 6 occurs.

The electromagnet 42 of the blocking device 18 has a pot magnet structure with a ferromagnetic core sleeve 56, in which the coil core 46 is axially displaceable and the windings of the coil 44 wearing. On the end face adjacent to the blocking pin 20 58 of the electromagnet 42 is integral with the Core sleeve 56 connected by the movable core 46 enforced pole piece 60 is provided, which over a Ferromagnetic outer cylinder 62 containing coil 44 with one on the end face removed from the blocking pin 64 of the coil 44 adjacent hollow chamber 66 in connection stands.

A ferromagnetic lever is in the hollow chamber 66 Form of a loose anchor plate 68 added. The anchor tile 68 stands in the hollow chamber 66 such that it attracted by the solenoid 42 when the coil 44 is excited to the over the core sleeve 56, the pole piece 60 and the ferromagnetic outer cylinder 62 guided close magnetic circuit (see FIG. 3). The anchor tile 68 presses on the blocking pin 20 distal end of movable spool 46 to the latter in its blocking position fixing the blocking pin 20 to move or hold in the locked position. The movable core 46 is made of a non-ferromagnetic Material, especially made of brass. Of the Electromagnet 42 is characterized in that it is a comparatively strong holding force on the movable Core 46 with a comparatively low electrical energy requirement can exercise the movable spool 46 to keep in engagement with the groove 50 of the locking pin 20.

As can be seen from FIG. 1, the electromagnet 42 is in a recess 70 in the housing web 3 '' of the cylinder housing added to the outside through a closure element 72 is closed.

When the coil 44 is not excited, the armature plate 68 can be of move the coil 44 to make room in the hollow chamber 66 for the retraction movement of the movable spool 46 to make this out of its locked position in the above described way is displaced. Preferably that is Anchor plate 68 received in the hollow chamber 66 in such a way that it - as indicated in Figure 1 by an arrow 78 - only performs a tilting movement when it is is attracted to the electromagnet 42, the The outer area 80 of the anchor plate 68 also in that already tightened state with the ferromagnetic Outer cylinder 62 is in contact or at most one has a short distance from it. Extends from the recess 70 a guide channel 74 for the movable Core 46 to the guide bore 24 of the locking pin. With 76 connecting wires of the coil 44 are referred to are led out laterally from the cylinder core housing 2 and to connect to a control device (not shown) are. The control device serves the coil current controlled on and off to the blocking pin 20 depending on certain criteria in his Lock release position or to block the To release cylinder core 6.

The control of the coil current can be different Ways can be realized. For example a key code checking device known per se be connected to the lock cylinder 1, the z. B. electrical and / or magnetic locking authorization codes of the key 14 checked if the latter in the Key channel 13 is introduced or already in the Key channel 13 is introduced. Detects the key code checker the key 14 as authorized to lock for the lock cylinder 1, it switches the coil current a so that the movable spool 46 in the Ring groove 50 of the blocking pin engages around the blocking pin 20 to prevent in the recess 34 of the Indent cylinder core. The cylinder core can thus in an unlocking angle position can be rotated so that Unlock the lock. The key code information can for example in one to be accommodated in the key handle Circuit (not shown) may be stored or generated by this circuit. The the coil current controlling key code checking device does not have to necessary completely housed in the cylinder housing 2 be. It can also - except for the key code reading part - outside the cylinder housing 2 protected area.

Remote control of the coil current is also possible, for example from one of the lock cylinder 1 remote locking center. In this case, you can Means are proposed to check whether the blocking pin 20 in its back from the recess 34 Release position is so that it can be prevented that the coil current is turned on when the cylinder core 6 of the blocking pin 20 in the in Figures 2 and 2A shown position is engaged. To this Way would be to prevent the movable spool 46 already presses the blocking pin 20 before the Blocking pin 20 is in the position in which its ring groove 50 is aligned with the movable coil core 46.

However, it should be emphasized that the test equipment mentioned are not absolutely necessary. If the coil 44 be excited when the blocking pin 20 is in its blocking position (Figure 2), the blocking pin nevertheless by means of the inclined surface 36 from the depression 34 to be displaced when the cylinder core 6 is clockwise is rotated. Then the blocking pin 20 of the coil core 46 held in its release position.

The control of the coil current can, for example, from depending on the time of day so that the blocking pin 20 at certain times of the day in its release position is locked and the lock cylinder 1 during this Times operated with a mechanically suitable key can be, whereas at times of the day when the coil current is unlocked, unlocking the lock not possible with a mechanically suitable key is because the blocking pin 20 is then in the in the figures 2 and 2A shown locking position of the cylinder core 6 the cylinder core 6 against twisting from the Secures the angular range of locking positions.

According to the invention, one designated by 82 in FIG Switching device may be provided in series with the coil 44 is switched and the coil current at from the control device applied voltage depending on the angular position of the cylinder core 6 interrupts. The with means for detecting the angular position of the cylinder core 6 equipped switching device 82 lets the Coil current only flow when the 84th designated angular range of the cylinder core 6 in an overlapping Positioned opposite the axis of the blocking pin 20 is. The angular range 84 is somewhat larger than the angular range delimited by the recess 34 and reaches its opposite to the axis of the locking pin 20 when the cylinder core 6 counterclockwise rotated from the trigger position shown in Figure 1A before the one delimited by the deepening Angular range opposite to the axis of the Blocking pin 20 comes. In this way it is achieved that the coil current at from the control device provided voltage flows only when the recess 34 is moved past the blocking pin 20 or this is opposite to the engagement of the locking pin 20 to avoid in the recess 34. In all other angular positions of the cylinder core 6 is the Blocking pin 20 in this way on the circumference 15 of the cylinder core 6 supported that its annular groove 50 to the axis of the movable Coil core 46 is aligned to when the Coil current is engaged by the coil core 46 and thus to be locked in the release position.

The solution described allows a reliable, of the purely mechanically controlled tumblers 7 independent Authorization control using the blocking device 18, the electrical energy requirement being due on the one hand the advantageous constructions of the electromagnet 42 and on the other hand due to the angular position dependent Switching the coil current on and off is low is, with the fact that for locking the locking pin 20 not very large forces from the electromagnet 42 must be applied.

The control device for controlling the coil current can additionally or alternatively with a (not shown) optical - electronic and / or acoustic person recognition device be connected so that the electromagnetic Locking device the blocking pin 20 in its release position is fixed when the person recognition device by checking one using a camera recorded image or recorded using a microphone Speech spectrum of a person this person as a locking authorization recognizes.

The operation of those shown in Figures 1 to 3A Locking device according to the invention in the form of a lock cylinder 1 can be summarized as follows.

If the cylinder core is based on that in FIGS and 1A shown locking and trigger position against clockwise with a mechanically suitable key rotated, the blocking pin 20 moves in the case that the electromagnet 42 is not controlled with his End 32 in the recess 34 of the cylinder core 6 and comes into contact with the blocking edge 38, as in Figures 2 and 2A is shown. In this locked state is the cylinder core 6 against further rotation counterclockwise towards the unlocked position secured and can be matched by means of the mechanical Key only in the trigger position according to Figures 1 and 1A are turned back clockwise, the cam flank 36 of the depression Blocking pin 20 in its release position (Figure 1, Figure 1A) displaced.

However, if the coil 44 is activated, the cylinder core 6 from the locking mechanism shown in FIGS. 1 and 1A and the trigger position rotated counterclockwise, so comes immediately after the cylinder core 6 the trigger position has left the rotation angle range 84 in Overlap to the axis of the blocking pin 20, whereupon the switching device 82 closes the coil current circuit and the coil core 46 in the annular groove 50 of the locking pin intervenes. The blocking pin 20 is then in its release position locked and prevented from entering the recess 34 indent, as shown in Figures 3 and 3A is illustrated. The cylinder core can thus counter Clockwise towards the unlocking position can be rotated further. After the angular range 84 den Blocking pin 20 has swept, opens the switching device 82 the coil circuit, with the locking pin 20 due to its support on the circumference of the cylinder core 6 in the ready for engagement by the coil core 46 Release position remains held. After the cylinder core 6, starting from that shown in FIGS. 1 and 1A Trigger and lock position, by 360 ° (or if necessary, turned 720 °) counterclockwise the lock cylinder has one with the unlocked one Corresponding unlocking position of the lock reached, in which the cylinder core 6 again in is positioned in a position in which the key 14 pulled out of the key channel 13 or in the Key channel 13 can be introduced.

In the embodiment shown in Figures 1 to 3A can the cylinder core 6 regardless of the state the blocking device 18 with a mechanically matching one Key due to the special arrangement of the flanks 38, 36 of the recess 34 rotated clockwise at any time to lock the lock.

Figure 4 shows a variant of the above first embodiment. 4 shows features which correspond to those in Figures 1 to 3A, with same reference numbers and a lower case letter marked, so far to the description of the first embodiment can be.

The embodiment according to FIG. 4 differs from Embodiment according to Figures 1 to 3A only in that the cylinder core 6a has a second recess 86 which, when the cylinder core 6a rotates with the Blocking pin 20a comes into engagement provided the blocking pin 20a is not locked in its release position. The second depression 86 of the cylinder core 6a also has a blocking edge 88 and a cam edge 90 on the opposite of the blocking edge 38a and Control flank 36a of the recess 34a geometrically are interchanged. This ensures that the cylinder core 6a also against clockwise rotation can be secured in the manner already described. This can therefore prevent the and unlocked position positioned cylinder core 6a by means of a mechanically fitting key in the locking position is rotated when the electromagnet is not controlled.

Another embodiment is shown in FIGS the invention in the form of a long shackle lock 100 shown. The long shackle lock 100 has a lock body 110 with a steel case 112 on the bottom closed by a welded-on base plate 114 is. Within the housing 112 are two essentially part body 116 of identical shape offset from one another by 180 ° arranged. The partial bodies 116 are in the housing 112 in Aligned to each other and relative to the housing 112 secured. On the opposite The ends of the partial bodies 116 form a bearing 118 for the rotatable mounting of a cylinder 122, the one Sprocket 128 has. Along corresponding to each other Long sides 130 of the partial bodies 116 are each a guide channel 132 for slidably accommodating a Lock bolt 134 provided. The locking bolts 134 are in opposite directions with a spring 136 in question End locking position (Figure 5, Figure 6) biased towards the respective spring 136 on an in pin 138 attached to the respective guide channel 132 supports. Each locking bolt 134 is with a respective one Rack 140 firmly connected. The racks 140 stand on diametrically opposite sides of the cylinder 122 with the ring gear 128 in engagement, so that the Racks 140 and thus the locking bolts 134 through Rotation of the cylinder 122 against the action of the biasing force of springs 136 in opposite directions are movable to the locking bolt 134 from their locking end positions to move. The cylinder 122 is closed this purpose with a rotary actuator 142 via a coaxially guided out of the housing 112 Shaft 144 connected so that the locking bolt 134 by rotating the outside of the lock body 110 Rotary actuator 142 from its locking end position (Figures 5 and 6) out in their unlocked position (Figures 7 and 8) are displaceable.

Essentially for receiving leg ends 146 U-shaped lock bracket 148 are in the partial bodies 116 leg receptacles 150 in the form of stepped bores 152 provided, located on the top 151 of the lock body extend through the housing 112. In each of the holes 152 is one in the area of the largest diameter biased by a spring 154 control sleeve 156 guided. The spring 154 is preferably conical so that the end area is also conical the control sleeve 156 in the locked state of the Lock can dip into the spring. Each leg end section 146 of the lock bracket 148 has a concave Bolt engagement surface 158 into which the respective locking bolt 134 can engage around the leg end portions 146 in the leg receptacle 150 against being pulled out to secure the lock body 110.

When inserting the leg end portions 146 of the first from the lock body 110 separate lock bracket 148 dip into the leg receptacles 150 146 in the cup-shaped control sleeve 156 and move this towards the bottom plate 114. If the bracket recess forming the latch engagement surface 158 of the relevant leg end section 146 with the Bolt guide channel 132 is aligned, which runs through the relevant compression spring 136 preloaded locking bolts 134 in the bracket recess to with the bolt engagement surface 158 to come into locking engagement. The The lock is now locked.

When the lock 100 is open and the lock bracket 148 from Lock body 110 is to be removed, then the Sprocket 128 by means of the rotary actuating element 142 - Turned counterclockwise with respect to Figure 6 become. The locking bolts 134 on the form-fitting connection between gear ring 128 and racks 140 so far towards the cylinder 122 pulled until the latch bolt 134 from the bolt engagement surface 158 released and their unlocked position take in. The leg end portions 146 of the lock shackle 148 are then from the biased control sleeve 156 pushed out of the partial bodies 116 until them within the stepped holes 152 on the shoulder 160 of the hole 152 in question come to rest (see Figure 7). The lock bracket 148 can now be removed become. Due to the bar influencing position achieved in this way the control sleeves 156 are also the bolt guide channels 132 partially blocked and the free Ends of the pretensioned locking bolts 134 are supported the outer peripheral surface of the control sleeves 156. Hereby it is ensured that during the subsequent insertion the leg end portions 146 of the lock shackle 148 the locking bolts 134 under the effect of their bias automatically into the bolt engagement surface 158 forming leg recesses can retract if the Control sleeves 156 the bolt guide channels 132 again released, d. H. in their bolt release position (cf. FIG. 5) have occurred. A surrounding the housing 122 Shell is indicated by 147.

To secure the U-lock 100 against unauthorized persons Unlocking the padlock 100 has an inventive Locking mechanism 201. The principle of operation of the locking mechanism 201 essentially corresponds to the functional principle, as it is with reference to Figures 1 to 3A described for the first embodiment of the invention has been. Parts of the locking mechanism 201, the one functional in terms of securing the lock Have correspondence in the first embodiment, are in Figures 5 to 10 with corresponding, however identified by 200 increased reference numerals.

The locking mechanism 201 includes a blocking device 218 with a housing block 203 '' in the lock body 110 in the cavity 219 between the one on the right in FIG. 6 lying sub-body 116 and the bottom in Figure 6 Housing wall 221 arranged and fixed to the housing is.

The housing block 203 ″ has a perpendicular to the longitudinal axis the bolt guide channel 132 on the right side of the Figure 6 extending bearing bore 224 through the Part body 116 extended through and to the bolt guide channel 132 is open. In the bearing bore 224 is a locking pin 220 axially slidably received and by a spring 230 to the locking bolt 134 in the guide channel 132 biased so that the locking pin 220 with its slightly rounded end 232 normally on the circumferential side 215 facing it of the locking bolt 234 is supported.

On the peripheral side 215, the one on the right in FIG Locking bolt 134 a recess 234 in the form of a Milling on the in the locking end position of the Locking bolt 134, in which the locking bolt 134 is most distant position from the cylinder 122 has (see FIG. 6), in the direction of the leg receptacle 150 is offset from the blocking pin 220.

If the rotary actuating element 142 is now rotated in the manner that the relevant locking bolt 134 in the direction is moved to the cylinder 122, then the recess comes 234 in alignment with the blocking pin 220 so that the locking pin 220 with its end portion 232 below the effect of its bias engages the recess 234 and with the blocking edge 238 of the recess 234 comes into engagement (see FIG. 9). The blocking edge 238 the locking bolt 134 is shaped such that about it none displacing the blocking pin 220 from the recess 234 Forces are exerted on the blocking pin 220 can. In the exemplary embodiment shown, the Blocking edge 238 substantially parallel to the axis of the Blocking pin 220 on the leg holder 150 closer lying side of the recess 234.

In the blocking position of the Blocking pin 220 is the one it engages Locking bolt 134 against further displacement in the direction secured to cylinder 122. Because in this case the cylinder 122 and the ring gear 128 connected to it in a rotationally fixed manner are also blocked in this sense, d. H. Not can also be rotated to unlock the locking bolt provided on the left in FIG. 6 134 secured in a corresponding position. The locking bolts 134 have in this position (see FIG 9) the latch engagement surfaces 158 of the leg end portions 146 not yet left completely, so she still the lock bracket 148 on the lock body 110 secure and hold the lock 100 in the locked state.

The locking bolts 134 can be released after releasing the rotary actuator 142 but under the biasing force the springs 136 automatically into their locking end position snap back according to Figure 6. To this end has the recess 234 on the thigh receptacle 150 further lying side on a sloping edge 236, the the blocking pin 220 when the locking bolt moves 134 in the locking end position from the bolt guide channel 132 against the biasing force of the spring 230 displaced, so that the blocking pin 220 finally again reaches the release position shown in FIG. 6, in which he is on the circumferential side 215 of the locking bolt 234 is supported outside of the recess 234.

In its release position according to FIG V-shaped annular groove 250 of the blocking pin 220 to the guide channel 274 of the locking pin 246 of the electromagnetic Locking device 240 aligned. The guide channel 274 extends vertically in the housing block 203 ″ to the bearing bore 224 of the blocking pin 220.

The electromagnetic locking device 240 comprises an electromagnet 242 as referenced in FIG the first embodiment has already been described with the locking pin 246 from the movable spool elongated coil 244 is formed.

By actuating the electromagnet 242, the locking pin can 246 can be moved into its locked position in which it with its tip shaped in addition to the ring groove 250 248 engages in the annular groove 250 of the blocking pin 220, around the blocking pin 220 in the in FIGS. 6, 8 and 9A to fix the release position shown. Also with that Locking mechanism 201 can be provided that due to the interaction of the locking pin tip 248 and the ring groove wall 254 the blocking pin 220 still slightly of that Locking latch 234 is withdrawn when the locking pin 246 engages in the groove 250.

The locking pin 220 thus locked is no longer in able to cross the direction of movement of the concerned To engage locking bolt 134 in the recess 234 (see Figure 9A). In this state, the rotary actuator 142 to unlock the lock 100 in corresponding direction of rotation so far that the Lock bolt 134 completely from the bolt engagement surfaces 158 of the lock bracket 148 are released, as in the Figures 7 and 8 is shown. When transitioning to this unlocked position the locking bolt 134 is the depression 234 on the blocking pin 220 in the direction of the Cylinder 122 has been moved past. In this unlocked state of the lock 100 are the leg end portions 146 of the lock shackle from the control sleeve 156 in the position shown in Figure 7 has been shifted so that the lock bracket 148 can be removed from the lock body 110 can.

The electromagnetic locking device 240 is by means of a partly schematically indicated control device 251 controlled so that the locking of the locking pin 220 and thus the possibility of unlocking the Lock 100 only with appropriate locking authorization is possible.

The control device is essentially in the cavity 219 'of the lock body 110 between the left in Figure 6 arranged partial body 116 and the opposite Housing wall 253 arranged.

As can be seen from Figure 10, the control device 251 a combination display visible from the outside 300 to represent combination digits. The combination display 300 is protected in the base plate 114 of the lock body 110 integrated and points in the example four combination display elements 302. Any combination indicator 302 is a spring loaded subject Assigned to switch 304. The control device 251 has counting means (not shown) that the switches 304 are assigned and the number of operations the switch 304 count, with the respective count on a corresponding display element 302 is displayed. The counters count from 0 to 9 and are next Counting step reset to 0, so that by pressing of a relevant switch 304 on the associated one Display element 302 optionally a number between 0 and 9 can be set. At least a certain one The control device 251 accepts a combination of numbers as locking authorization information. When setting this The control device gives a lock authorization number combination 251 a signal to the electromagnet 242 to operate and the blocking pin 220 in its Lock release position. A switch 305 (fig 10) is provided to control device 251 and switch off.

Although in the exemplary embodiment shown, the means for setting and displaying the lock authorization number combination are trained electronically, too a conventional combination slewing gear can be used, to a locking authorization information for the Provide control device.

The control device 251 has the coil current in Depending on the position of the right in Figure 6 Cylinder 122 provided locking bolt 134 interrupting or closing switch 306. The desk 306 is on the partial body arranged on the left in FIG. 6 116 fixed and as a changeover switch with two spring-loaded Switch actuation means 308, 309 formed. The Shift actuators 308, 309 are in the way of one Switch tongue 311 positioned on the rack 140 of the relevant locking bolt 134 is attached. At Displacement of the locking bolt arranged on the right in FIG. 6 134 from the locking end position shown in FIG. 6 the switch tongue 311 first comes with the first switching actuator 308 in contact to the Switch actuating means 308 to operate, whereupon the Switch 306 closes the coil 244 circuit. It it should be noted that the switching means 308 is positioned that it is only from the switching tongue 311 is actuated when the locking bolt 134 is already slightly been moved from its locking end position is, however, not yet so far that the recess 234 comes in opposite position to the blocking pin 220. The if the combination of numbers is set correctly Control device 251 has applied voltage after actuation of the switching actuating means 308 Current flow through the coil 244, causing the blocking pin 220 in time for its release position is locked before the recess 234 the blocking pin 220 reached. Immediately after the deepening 234 towards cylinder 122 on the locking pin 220 has been moved past, the switching tongue 311 comes in contact with the second switching actuator 309 and breaks the coil circuit before the Locking bolt 134 the innermost unlocking position shown in Figure 8 has reached. The blocking pin 220 can then again on the peripheral side 215 of the Support locking bolt 134 (see FIG. 8). By the Switch 306 is thus ensured that neither in the End locking position (Figure 6) still in the unlocking position (Figure 8) electrical energy from the electromagnet 242 is consumed, even if the right one Number combination is set. Nevertheless, the Blocking pin 220 reliably locked and engaged hindered in the recess 234 if the number combination is correct the lock 100 by rotating the rotary actuator 142 is unlocked.

When locking bolt 134 decreases, starting from the innermost unlocking position shown in Figure 8, in the locking end position according to Figure 6 is first actuated the switching actuator 309 and then the Switch actuation means 308, wherein after actuation of the Switch actuator 308 the coil circuit again is interrupted. It should be noted that in the case of unsuitable Number combination on the combination display 300 from the Control device 251 no electrical voltage supplied is, so that in this case the actuation of the electromagnet 242 regardless of the state of the switch 306 is excluded.

The control device 251 has a closed to the outside Battery compartment 313, in which a schematically indicated Accumulator 315 as a rechargeable battery for the Power supply to the electromagnet 242 and the control device 251 is provided. As can be seen from Figure 10 is, two sockets 317 are provided, via which the battery 315 from an external charge source can be charged and, if necessary, an emergency power supply for the operation of the control device 251 and the electromagnet 242 can be ensured if the sockets 317 by means of a complementary plug with the external one Charge source to be connected.

The battery compartment 313 has in the bottom plate 114 of the Lock body 110 a lockable flap 319, the using a special tool, such as a key, can be opened and closed to the battery to replace.

It should be noted that the rotary actuator 142 could be replaced by a hand lever 142 ', such as this is indicated in FIG. 6 with dashed lines. The hand lever would be shown in the example Attach form to a locking bolt 134 and in one (not shown) guide channel along the relevant Lock bolt guide channel 132 to slide. In this way, the unlocking movement of the Locking bolt 134 by moving the hand lever 142 ' towards the ring gear 128 can be realized.

It should also be noted that the cam flank 36 or 236 for displacing the blocking pin 20 or 220 can alternatively be provided on the blocking pin, such as this is indicated schematically in FIG. 11.

Figure 12 shows an electromagnet 342, which instead of the electromagnet 42 in the first embodiment according to FIGS. 1 to 3A or the electromagnet 242 in the exemplary embodiment according to FIGS. 5 to 10 can be used.

The electromagnet 342 includes an elongated coil 344, in which a movable coil core 346 as a locking pin for Blocking of the blocking pin 20 or 220 guided axially is. The electromagnet 342 is of course to be installed that the lock pin 346 is transverse to the lock pin is aligned and in the release position of the Blocking pin can engage in the blocking pin.

The core 346 of the coil 344 is ferromagnetic and carries at its end distant from tip 348 is a truncated cone Pole piece or anchor part 368. The electromagnet 342 has a pole piece 369 with a substantially complementary one recess 371 formed to pole piece 368, in which the pole piece 368 of the core 346 is received. In Figure 12 is the coil core 346 in its retracted position Position shown when the coil 344 is not excited. When excited The coil 344 becomes the pole piece 368 from the coil 344 attracted and comes with the relevant complementary Surfaces of the pole piece 369 in connection, the extensive contact between the pole pieces 368 and 369 a comparatively strong holding force of the electromagnet 342 with a comparatively low coil current.

In the described embodiments, the electromagnet just the task of locking the locking pin in to fix his release position without being active Element for blocking the locking mechanism element (cylinder core 6 or locking bolt 134) to be used. For a reliable locking of the locking pin the electromagnet in question comes with comparatively less electrical energy. Due to the low The electromagnet can easily draw current Way controlled, z. B. with constant current control. In addition, there is no very large stroke of the movable Kerns (locking pin) is required. Of the Electromagnet can for the reasons mentioned above comparatively space-saving and compact from simple and a few individual parts.

The electromagnetic locking device can alternatively also realized using an electric motor are as shown schematically in Figures 13 and 14 is indicated.

In Figure 13, the electric motor 442 drives via its motor shaft 443 the linearly guided spindle nut 444 one Spindle drive 445 back and forth to a provided Locking pin 446 in a recess 450 of the locking pin 420 bring in or out of this.

In Figure 14 is one of the electric motor 542 via a transmission 545 rotatable eccentric 546 shown that dependent from its rotational position into the recess 550 of the blocking pin 520 engages or from the recess 550 is turned out.

In the electromagnetic shown in Figures 13 and 14 Locking devices with an electric motor take one control device, not shown, was the task blocking member 446 or 546 in question in the present case Locking authorization in engagement with the blocking pin 420 or 520 to bring.

FIG. 15 shows a further variant of the blocking device schematically indicated according to the invention. The Electromagnetic locking device 640 includes one Electromagnets 642 with an elongated coil 644 and one to the blocking pin 620 by means of a spring 645 biased movable bobbin 646, which at electrical excitation of coil 644 from the recess 650 of the locking pin 620 is pulled out. The blocking pin 620 is therefore used to block the locking mechanism element released when the coil current is turned on is. Of course, also in connection with the a switch schematically illustrated in FIG. 15 be provided (cf. switch 306 in FIG. 6 or Switch 82 in Figure 1) to depend on the coil current the position of the locking mechanism element (e.g. cylinder core 6 or locking bolt 134) to interrupt electrical Energy is only consumed when it is is actually needed. In the case of the padlock 5 to 10, this would mean that the control device 251 Operating voltage only if it is not set correctly Combination on the combination display 300 would deliver and that a correspondingly adapted switch 306 would close the coil circuit as soon as the Locking bolt 134 from its locking end position would be moved out, so that the blocking pin for blocking would be free if the recess 234 was opposite comes to the blocking pin.

Another variant of the blocking device according to the The invention is indicated schematically in FIG. 16. Parts the blocking device of Figure 16, the function Correspond to parts of the blocking device shown in FIG. 1, are added with corresponding reference numbers 700 marked, so that in this respect to those already described Embodiments are referred to can to avoid repetitions.

Deviating from the blocking device of FIG. 1 shown embodiment acts the movable coil core 746 of the blocking device shown in FIG. 16 not directly as a blocking element, but as a drive part for a locking member 746a, which is in the form of a spherical body is trained. The spherical body 746a is movable guided in the guide channel 774, which is in alignment with the movable coil core 746, so that the movable Coil core 746 moving towards Blocking pin 720 with its preferred in the present case flat-shaped end face 748 den Ball body 746a acted on and blocking pin 720 shifts. The spherical body 746a can in this way in his locked position, in which he is brought into the Annular groove 750 of the locking pin 720 engages when the blocking pin 720 - as in Figure 16 is shown - in its release position. The ring groove wall 752 is concave to one to the spherical body 746a essentially complementary engagement surface to provide.

When the coil current is switched on, the movable coil core stops 746 the spherical body 746a in the locked position. When the coil current is switched off, the spherical body 746a displaced from the locking position by the groove wall 752 when the blocking pin 720 under the effect of its Spring 730 for engagement with the one in FIG. 16 is not shown recess of the relevant locking mechanism element is moved.

A blocking device with a not rigid with that Drive member (here the movable coil core 746) connected Locking member 746a facilitates manufacture in terms of compliance with tolerances because of reference levels are sort of separate.

Alternatives would come as a drive for the spherical body 746a Embodiments, for example, an electromagnet in Question as he described with reference to Figure 15 has been. Similarly, electromotive Drives such as shown in Figure 13 or 14 are used to move the spherical body 746a become.

Claims (29)

1. A catch mechanism for a lock, comprising

   a lock mechanism element (6; 134), which is mounted in a housing (2; 112) and which - starting from a bolting end position - may be reversibly moved from a zone of bolting positions, in which it holds the lock in the bolted state, into an unbolting position corresponding to the unbolted state of the lock, in order to unbolt or bolt the lock, and

   a blocking means (18; 218; 618) having a blocking element (20; 220; 420; 520; 620) which is guided movably in the housing (2, 212) and which, under pretensioning in the direction of the lock mechanism element (6; 134) and when said lock mechanism element (6; 134) is in at least one preset bolting position, engages with an engagement portion (32; 232) adjacent the lock mechanism element (6; 134) in a recess (34; 234) in the lock mechanism element (6; 134) located opposite the engagement portion in the preset bolting position, in order, in engagement with a blocking flank (38; 238) of the recess (34; 234), to secure the lock mechanism element (6; 134) against unauthorised movement out of the bolting position zone, and having an electromagnetic arresting means (40; 240; 340; 440; 540; 640), controllable by means of a control means (251), for arresting the blocking element (20; 220; 420; 520; 620) in a preset position, wherein

   the engagement portion (32; 232) of the blocking element (20; 220; 420; 520; 620) is constructed in such a way, relative to the recess (34; 234), that, upon engagement in the recess (34; 234), it moves relative to the blocking flank (38; 238) into a position in which it cannot be displaced out of the recess by the blocking flank (38; 238) counter to the effect of the pretensioning of the blocking element (20; 220), and

   wherein the electromagnetic arresting means (40; 240; 340; 440; 540; 640) may be operatively designed and actuatable so as to arrest the blocking element (20; 220; 420; 520; 620) in a release position, in which it does not project into the recess (34; 234), in order to prevent engagement of the blocking element (20; 220; 420; 520; 620) in the recess (34; 234) and to release the lock mechanism element (6; 134) for movement into the unbolting position,

   characterised in that
   the recess (34; 234) in the lock mechanism element (6; 134) is staggered in the bolting end position with respect to the engagement portion (32; 232) of the blocking element (20; 220), such that the engagement portion cannot engage in the recess, and in that

   a) the recess (34; 234) comprises a controlling cam flank (36; 236) on the opposite side from the blocking flank (38; 238) or

   b) the engagement portion (232) comprises a controlling cam surface (236) which cooperates with the opposite flank (237) of the recess (234) from the blocking flank (238),

   in order to displace the engagement portion (32; 132), which engages in the recess (34; 234) when the lock mechanism element (6; 134) is in the preset bolting position, out of the recess (34; 234) if the lock mechanism element (6; 134), starting from the preset bolting position, is moved in the direction of the bolting end position, whereby the blocking element (20; 220) is transferred into a release position, in which it may be arrested by means of the electromagnetic arresting means (40; 240), in order to release the lock mechanism element (6; 134) for movement into the unbolting position.
2. A catch mechanism according to the preceding claim,
   characterised in that

   the blocking element (20; 220; 420; 520; 620) takes the form of a blocking pin which is guided axially movably in the housing, which rests with an axial end (32; 232) against the lock mechanism element (6; 134) through being pretensioned and which engages with its axial end (32; 232) in the recess (34; 234) when the lock mechanism element (6; 134) is in the preset bolting position, and in that the electromagnetic arresting means (40; 240; 340; 440; 540; 640) comprises a catch member (46; 246; 346; 446; 546; 646), which is guided in the housing so as to be displaceable between a non-catching position, in which it does not influence the blocking pin, and a catching position, in which it engages with the blocking pin in the release position thereof to arrest the blocking pin - and may be moved into the catching position by actuation of the electromagnetic arresting means.
3. A catch mechanism according to claim 2,
   characterised in that

   the catch member takes the form of the armature (46; 246; 346; 446; 746) of an electromagnet of the electromagnetic arresting means.
4. A catch mechanism according to claim 2 or claim 3,
   characterised in that

   the electromagnetic arresting means (40; 240; 340; 640) comprises an electromagnetic coil (44; 244; 344; 644) having a substantially pin-shaped core (46; 246; 346; 646) guided axially movably and forming the catch member, the axis of which core (46; 246; 346; 646) extends perpendicularly to the axis of the blocking pin (20; 220; 320; 620) and may be moved by actuation of the coil into the catching position, where it engages in a recess (50; 250; 350; 650), in particular a circumferential annular groove, in the blocking pin, which recess (50; 250; 350; 650) is aligned with the core when the blocking pin is in the release position,.
5. A catch mechanism according to claim 2,
   characterised in that

   the catch member is a sliding or rolling member (746a), especially a ball, guided movably in a guide channel (774) extending perpendicularly to the axis of the blocking pin (720), which sliding or rolling member (746a) engages, in its catching position, in a recess (750), in particular a circumferential annular groove, in the blocking pin (720), said recess (750) being substantially aligned with the guide channel (774) when the blocking pin (720) is in the release position, and may be loaded by a drive element (746), in particular by the armature of an electromagnet of the electromagnetic arresting means, for the purpose of moving it into the catching position.
6. A catch mechanism according to claim 5,
   characterised in that

   the electromagnetic arresting means comprises an electromagnetic coil (744) having a substantially pin-shaped core (746) which is guided axially movably, is axially flush with the guide channel (774) of the catch member (746a) and may be moved in the direction of the axis of the blocking pin (720) in order to push the catch member (746a) into the catching position.
7. A catch mechanism according to any one of claims 2 to 6,
   characterised in that

   the blocking pin (20; 220, 620) is pretensioned by a spring (30; 230; 630) towards the lock mechanism element (6, 134), and in that the recess (50; 250; 650) in the blocking pin and/or the catch member (46; 246; 646; 746a) comprises an oblique flank in order, when the coil is unexcited, to displace the catch member, located in the catching position, out of the recess in the blocking pin by means of the blocking pin, if the blocking pin moves out of its release position under the pretensioning action of the spring.
8. A catch mechanism according to any one of claims 2 to 7,
   characterised in that

   the movable coil core (46) is made of a non-ferromagnetic material and is guided axially movably in a stationary, hollow-cylindrical core sleeve (60) of ferromagnetic material passing through the coil (44), and in that the electromagnetic arresting means (40) comprises, at the end of the coil (44) remote from the blocking pin (20), an armature plate (68) held so as to be movable towards the coil (44) and away from the coil (44), said armature plate (68) being attracted by the coil when the coil (44) is excited, in order to exert pressure on the end of the movable core (46) remote from the blocking pin (20) and to displace the movable core (46) or optionally a catch member actuated by the movable core (46) into the catching position.
9. A catch mechanism according to claim 8,
   characterised in that

   the armature plate (68) is accommodated loosely in a chamber (66) adjoining the front end of the coil (44) remote from the blocking pin (20).
10. A catch mechanism according to one of claims 1 to 2,
    characterised in that

    the electromagnetic arresting means (440; 540) comprises an electric motor (442; 542) and a catch member (446; 546) driven by the electric motor, which catch member (446; 546) may be brought into engagement with the blocking element (420; 520) in order to arrest the blocking element in its release position.
11. A catch mechanism according to claim 10,
    characterised in that

    the catch member is a catch pin (446) driven axially by the electric motor (442) via a spindle/nut transmission (445), which catch pin (446) may engage in a recess (450) in the blocking element (420) aligned with the catch pin (446) when the blocking element (420) is in the release position, in order to arrest the blocking element in the release position.
12. A catch mechanism according to claim 10,
    characterised in that

    the catch member comprises a catch arm (546) which may be rotated into a catching position by means of the electric motor (542) and which engages in its catching position in a recess (550) in the blocking element (520), in order to fix the blocking element (520) in the release position.
13. A catch mechanism according to any one of the preceding claims, characterised in that

    the lock mechanism element (6) constitutes part of a lock mechanism, lockable by means of an appropriate key (14), for actuating the lock, in that the key carries electrical and/or magnetic lock authorisation information exchangeable between the key and the lock mechanism and for examination by the control means for the purpose of actuation of the electromagnetic arresting means (40), said lock authorisation information identifying said key as fitting the lock mechanism, and in that the control means is so arranged as to actuate the electromagnetic arresting means (40) for the purpose of arresting the blocking element (20) in its release position when the correct key is recognised.
14. A catch mechanism according to any one of the preceding claims, characterised in that

    the electromagnetic arresting means may be remote-controlled.
15. A catch mechanism according to claim 2 or any one of claims 3 to 14, the latter in so far as the claims are directly or indirectly dependent on claim 2,
    characterised in that

    it takes the form of a cylinder lock (1) for actuation of the lock, in that the lock mechanism element (6) is a cylinder lock plug (6) which is mounted in the cylinder lock housing (2) so as to be rotatable about its axis (22) and which may be rotated by means of a key (14), and in that the blocking pin (20) is guided perpendicularly with respect to the axis of the cylinder plug (6) and rests against the circumference (15) of the cylinder plug (6), the blocking pin (20) engaging with its end (32) adjacent the cylinder plug (6) in the recess (34) provided at the circumference (15) of the cylinder plug (6) when the cylinder plug is in the preset bolting position, provided that it is not arrested in its release position by the electromagnetic arresting means (40).
16. A catch mechanism according to claim 15,
    characterised in that

    the cylinder lock plug (6) may assume a withdrawal position in the bolting position zone, in which withdrawal position the key (14) may be inserted into a key channel (13) in the cylinder plug (6) and withdrawn from the key channel (13), and in that the recess (34) in the cylinder plug (6) is rotated relative to the blocking pin (20) out of its position of alignment corresponding to the preset bolting position of the cylinder plug (6) when the cylinder plug (6) is in the withdrawal position, such that the blocking pin (20) rests against the circumference (15) of the cylinder plug (6) in a suitable position for being arrested by the electromagnetic arresting means (40), the recess (34) being arranged in such a way that it reaches its position of alignment relative to the blocking pin (20) when the cylinder plug (6), starting from the withdrawal position, is turned in the direction of the unbolting position, such that the pretensioning of the blocking pin (6) may cause it engage in the recess, provided that it is not arrested by the electromagnetic arresting means (40).
17. A catch mechanism according to one of claims 15 to 16,
    characterised in that

    the cylinder plug (6) may be rotated by means of a mechanically suitable key out of its unbolting position into the preset bolting position even when the blocking pin (20) is not arrested in its release position by means of the electromagnetic arresting means.
18. A catch mechanism according to one of claims 16 to 17,
    characterised in that

    the recess (34) in the cylinder plug is formed by a milled-out portion, the contour of which comprises two abutting flanks (36; 38) in a cross-section orthogonal to the cylinder plug axis (22), one (38) of which flanks extends substantially parallel with the blocking pin (20) when the cylinder plug (6) is in the preset bolting position and forms the blocking flank and the other (36) of which extends obliquely to the axis of the blocking pin (20) when the cylinder plug (6) is in the preset bolting position and forms a controlling cam flank for displacement of the blocking pin (20) out of the recess (34), the controlling cam flank (36) being arranged in such a way that it displaces the blocking pin (20) out of the recess (34) if the cylinder plug (6), starting from the preset bolting position, is rotated into the withdrawal position.
19. A catch mechanism according to claim 18, in so far as it is dependent on claim 16,
    characterised in that

    the cylinder plug (6a) comprises a second recess (86) disposed for engagement by the blocking pin (20a), into which recess (86) the blocking pin (20a) engages blockingly when the cylinder plug (6a), starting from its unbolting position, is rotated in the direction of the zone of bolting positions and out of which the blocking pin (20a) is displaced when the cylinder plug (6a) is rotated back to the unbolting position, the key being insertable into the key channel (13a) when the cylinder plug (6a) is in the unbolting position - and withdrawable from the key channel (13a).
20. A catch mechanism according to any one of claims 15 to 19, characterised in that

    the cylinder lock plug (6) is also secured against unauthorised rotation out of the zone of bolting positions by mechanical tumblers (7) of the cylinder lock (1), the tumblers (7) being displaceable by a mechanically suitable key (14) into their positions releasing the cylinder plug (6) for rotation.
21. A catch mechanism according to any one of claims 1 to 14, for a shackle lock (100), especially a long shackle lock, which comprises a lock body (110) and a locking shackle (148), which is connected with the lock body (110) at both arm end portions (146) when the lock (100) is in the bolted state, in such a way that at least one arm portion (146) penetrates into an arm receptacle (150) in the lock body (110) and is bolted therein by a locking bolt (134), which is guided movably within the lock body (110), engages in a bolt engagement face (158) on the arm end portion (146) and may be moved into an unbolting position releasing the arm portion (146) for movement out of the arm receptacle (150) for the purpose of unbolting the lock (100),
    characterised in that

    the lock mechanism element is formed by the locking bolt (134).
22. A catch mechanism according to claim 21,
    characterised in that

    the locking bolt (134) takes the form of a catch rod displaceable axially perpendicularly to the axis of the arm receptacle (150), and in that the blocking element, through the pretensioning thereof, rests perpendicularly to the axis of the catch rod (134) against a circumferential side (215), comprising the recess (234), of the catch rod (134).
23. A catch mechanism according to claim 22,
    characterised in that

    the recess (234) takes the form of a milled-out portion which comprises a flank, on its side nearer the arm receptacle (150), extending substantially orthogonally to the axis of the catch rod (134) and forming the blocking flank (238) and an oblique flank (236) on its side remote from the arm receptacle (150), the recess (234) being staggered relative to the engagement portion (232) of the blocking element (22), constructed in particular as a blocking pin, in the direction of the arm receptacle (150), if the catch rod (134) is in its bolting end position.
24. A catch mechanism according to any one of the preceding claims, characterised by

    a means (300) connected with the control means (251) for the provision of lock authorisation information by a user, the control means (251) actuating the electromagnetic arresting means (240) for the purpose of arresting the blocking element (220) in the release position thereof only after the provision of preset lock authorisation information.
25. A catch mechanism according to claim 24,
    characterised in that

    the means (300) for the provision of lock authorisation information comprises means (304) of setting character combinations as lock authorisation information.
26. A catch mechanism according to claim 21 or any one of claims 22 to 25, the latter in so far as they are dependent on claim 21,
    characterised in that

    the lock body (110) comprises a battery chamber (313) for accommodating at least one battery (315) for supplying electricity to the electromagnetic arresting means (240) and the control means (251).
27. A catch mechanism according to any one of the preceding claims, characterised by

    a switching means (82; 306) which opens and closes the electric circuit of the electromagnetic arresting means (40; 240) in accordance with the position of the lock mechanism element (6; 134) and which holds the electric circuit closed at least when the recess (34; 234) of the lock mechanism element (6; 134) is in a position suitable for engagement of the blocking element (20; 220).
28. A catch mechanism according to claim 27,
    characterised in that

    the switching means (306) comprises a mechanical switch (308, 309, 311) which holds the electric circuit open when the lock mechanism element (134) is in its bolting end position or its unbolting position.
29. A shackle lock,
    characterised by a catch mechanism according to any one of claims 21 to 28.

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