Magnetically coded lock

Abstract

The invention relates to a lock (20, 120, 220, 320, 420), in particular a cam lock, comprising a lock housing (22, 122, 222, 422) and a lock core (26, 126, 226, 326, 426) rotatably mounted in the lock housing (22, 122, 222, 422). The lock core (26, 126, 226, 326, 426) is designed for attaching a wrench (2, 102, 202, 302, 402), in particular a socket wrench, so as to transmit a torque at a first end (38, 138, 238) which can be accessed from the front face (28, 128, 228) of the lock (20, 120, 220, 320, 420), wherein the lock (20, 120, 220, 320, 420) has blocking means (52, 152, 252, 352, 452) which block a rotation of the lock core (26, 126, 226, 226, 426) in the lock housing (22, 122, 222, 422) between an open position and a closed position when the wrench (2, 102, 202, 302, 402) is removed, and the blocking means (52, 152, 252, 352, 452) are designed to release a rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between the open position and the closed position when a wrench (2, 102, 202, 302, 402), in particular a socket wrench, comprising a specified magnet assembly (12, 112, 212, 312, 412) is attached onto the first end (38, 138, 238) of the lock core (26, 126, 226, 326, 426). The invention additionally relates to a wrench (2, 102, 202, 302, 402) and to a lock system (80, 180, 280, 380, 480).

Description

[0001] The present invention relates to a lock, in particular a latch lock, comprising a lock housing with a locking core rotatably mounted in the lock housing, wherein the locking core is configured at a first end accessible from a front of the lock for the torque-transmitting insertion of a key, in particular a key-type key, and wherein the lock has locking means which, when the key is removed, block rotation of the locking core in the lock housing between an open position and a closed position. The invention further relates to a key, in particular a key-type key, for such a lock and to a locking system, in particular a latch lock system, comprising such a lock and such a key.

[0002] Fasteners such as latches and the like are used in the prior art as industrial fittings, for example, for locking thin-walled sheet metal doors. Simple latches have a locking profile on the locking core, for example, in the form of a square or a square recess, for inserting a key with a corresponding key profile, such as a key with a square hollow profile or square profile, so that high torques can be transmitted from the key to the locking core and thus to the locking bolt. In this way, the often quite high frictional forces between the locking bolt and a locking surface of a frame surrounding the sheet metal door, which is engaged by the locking bolt, can be overcome when opening or closing the latch.The disadvantage of such latch locks lies in the low security against unauthorized operation, since such latch locks can be opened or closed quite easily, for example with pliers, even without a suitable key.

[0003] Furthermore, latch locks are known from the prior art in which a conventional cylinder lock is integrated. Such a conventional cylinder lock has a locking core with a keyway, whereby movable locking elements such as locking plates (in the case of disc cylinders), locking discs (in the case of disc cylinders), or locking pins (in the case of pin cylinders) block the rotation of the locking core in the lock housing unless the locking elements are mechanically moved into a specific position by the key contour of a matching key inserted into the keyway. This achieves a high level of security against unauthorized operation. However, conventional cylinder locks are more sensitive than key-operated locks and therefore less robust under adverse environmental conditions and require lock covers to prevent contamination of the delicate keyway.to prevent dust and dirt from accumulating on the moving locking elements, thus complicating the handling of the locks. Furthermore, due to their low leverage and the delicate mechanics of conventional cylinder locks, standard cylinder keys can only transmit relatively low torques, limiting their use with bolt locks, which, as previously described, sometimes require high torques for opening and closing.

[0004] A closure according to the preamble of claim 1 is known, for example, from EP 2 767 656 A1.

[0005] To transmit high torques despite the use of a conventional cylinder lock, it is also known to provide a separate rotary handle for opening or closing the latch lock in addition to the cylinder lock for unlocking. However, such latch locks have the disadvantage of increased operating complexity and require significantly more installation space. Against this background, the present invention aims to propose a lock, in particular a latch lock, a key for such a lock, and a locking system that overcomes at least one or some of the aforementioned disadvantages of the prior art.

[0006] The aforementioned problem is solved according to the invention by a closure, in particular a latch closure, according to claim 1, comprising a closure housing and a locking core rotatably mounted in the closure housing, wherein the locking core is designed at a first end accessible from a front of the closure for the torque-transmitting insertion of a key, in particular a key-type key, and wherein the closure has locking means which, when the key is removed, block rotation of the locking core in the closure housing between an open position and a closed position, wherein the locking means are designed to release the rotation of the locking core in the closure housing between the open position and the closed position when a key, in particular a key-type key, with a predetermined magnetic arrangement is inserted onto the first end of the locking core.

[0007] In this way, a robust and compact closure, in particular a latch closure, is provided, to whose locking core high or higher torques can preferably be transferred by attaching and turning a key, and which at the same time offers a certain basic security against opening or closing without a suitable key.

[0008] The fastener can be, in particular, a latch fastener. In this case, the locking core preferably has a rotating tongue at a second end. The rotating tongue can, in particular, be detachably connected to the locking core. The fastener can then preferably transmit high or higher torques to the rotating tongue, for example, to lock it behind a counter surface or to move it out of a locked position behind a counter surface.

[0009] It is also conceivable that the closure is a rod closure, for example a door rod closure. In In this case, a second end of the locking core is preferably coupled to one or more rods in such a way that a rotary movement of the locking core is converted into a linear movement of the one or more rods. For example, the locking core can carry a gear at its second end that meshes with a corresponding section, such as a rack section, of a rod of the rod lock.

[0010] It is still conceivable that the closure is an axial closure. In In this case, a contour that can be moved axially can be provided at a second end of the locking core. This contour can be moved into a corresponding contour, for example on a frame, to lock the locking mechanism and / or out of the contour to unlock it. Furthermore, it is conceivable that the second end of the locking core has a contour, such as a screw or bayonet profile, that can be turned into a corresponding contour, for example on a frame, to lock the locking mechanism and / or out of the contour to unlock it. Combinations of these configurations are also possible.

[0011] Furthermore, it is conceivable that the lock is designed in the form of a profile cylinder. For this purpose, the lock housing, in particular, can have the shape of a profile cylinder. This allows the lock to be used instead of a conventional cylinder lock, for example, instead of a disc cylinder, a flat cylinder, or a pin tumbler cylinder. In particular, the lock can thus be easily integrated into locking devices for profile cylinders. Such a lock in the form of a profile cylinder preferably has a locking lug that is rotationally fixed to the locking core.

[0012] By designing the locking means to release the rotation of the locking core in the lock housing between the open position and the closed position when a key with a predetermined magnetic arrangement is placed on the first end of the locking core, a magnetic unlocking function is provided, so that the key contour and the corresponding lock contour of the locking core can be optimized geometrically and mechanically, preferably for the transmission of high torques, for example by being designed to be more robust.

[0013] In contrast, with conventional cylinder locking systems, the shape of the cylinder lock keys and the key channel of the cylinder lock that receives the key are mechanically complex in order to effect a mechanical unlocking function, which means that only very low torques can be transmitted.

[0014] The locking core is designed at a first end, accessible from the front of the lock, for the torque-transmitting insertion of a key. In this way, the locking core can be actuated by inserting a suitable key when the locking mechanisms release the rotation of the locking core.

[0015] The first end of the locking core is preferably designed such that a suitable key can be positively fitted onto the first end of the locking core, enabling torque transmission from the key to the locking core with respect to the axis of rotation of the locking core. In this way, the locking core can be operated by the key. Fitting the key can also include inserting a protruding part of the key's contour, for example, a polygonal contour, into a corresponding recess at the first end of the locking core.

[0016] The locking mechanisms are designed to prevent the locking core from rotating within the lock housing between an open and a closed position when the key is removed. For example, the locking mechanisms may be designed to prevent the locking core from rotating within the lock housing from the open to the closed position when the key is removed. Additionally or alternatively, the locking mechanisms may be designed to prevent the locking core from rotating within the lock housing from the closed to the open position when the key is removed. It is not necessary, although conceivable, for the locking mechanisms to prevent any rotation of the locking core within the lock housing when the key is removed.In particular, a design is conceivable in which the locking core can be moved from an intermediate position between the opening position and the closing position into the opening position or the closing position even with the key removed, and the locking means only engage when the opening and / or closing position is reached.

[0017] The locking mechanisms are designed to release the rotation of the locking core within the lock housing between the open and closed positions when a key with a predefined magnetic arrangement is placed on the first end of the locking core. The locking mechanisms are therefore specifically configured for magnetic interaction with the predefined magnetic arrangement, which releases the rotation of the locking core.

[0018] By adapting the locking mechanisms to a specific magnetic arrangement of a key, the lock is magnetically coded. Operating the lock therefore requires the use of a matching key with the specified magnetic arrangement, while operation with a key without a magnetic arrangement or with a different arrangement is only possible to a limited extent, for example, only in intermediate positions between the open and closed positions, or not at all. The specified magnetic arrangement thus determines the lock's design. Although the magnetic arrangement itself is not part of the lock, the locking mechanisms are specifically adapted to the specified magnetic arrangement, so that inserting a matching key with the specified magnetic arrangement causes the locking mechanisms to release the rotation of the locking cylinder.

[0019] The aforementioned problem is further solved according to the invention by a key, preferably a snap-on key, particularly for the previously described lock or an embodiment thereof. The key has a handle part and a snap-on part, which may also be formed in one piece. The snap-on part has a key contour, in particular a polygonal contour, for torque-transmitting insertion onto a locking core of a lock, in particular the previously described lock or an embodiment thereof. Furthermore, the key has a magnetic arrangement on the snap-on part, in particular for magnetic interaction with locking elements of a lock, in particular the previously described lock or an embodiment thereof.

[0020] The key in question is, in particular, a socket key, for example, a multi-sided key. The key can have, in particular, an outer and / or inner contour, such as a multi-sided contour, which allows the key to be fitted onto a corresponding counter contour, in particular an inner and / or outer contour, of a lock. An example of a socket key with an outer contour is a key with an external square drive. An example of a socket key with an inner contour is a key with an internal square drive. It is also conceivable that a key has both an outer and an inner contour.

[0021] Furthermore, the aforementioned problem is solved according to the invention by a locking system, in particular a latch locking system, with the previously described locking mechanism or an embodiment thereof and with a key suitable for the locking mechanism, in particular the previously described key or an embodiment thereof.

[0022] The key for the locking system is a key that fits the locking system. For this purpose, the key and the lock are specifically adapted to each other such that the locking core is designed at its first end for the torque-transmitting insertion of the key, and that the locking elements of the latch lock are configured to release the rotation of the locking core within the lock housing between the open and closed positions when the key is inserted onto the first end of the locking core. Specifically, the magnetic arrangement of the key is the specified magnetic arrangement for which the locking elements are designed to release the rotation of the locking core within the lock housing between the open and closed positions when a key with this specified magnetic arrangement is inserted onto the first end of the locking core.

[0023] The following describes various embodiments of the lock, the key, and the locking system, with each embodiment applying independently to the lock, the key, and the locking system, respectively. Furthermore, the individual embodiments can be combined with one another as desired.

[0024] In one embodiment, the locking core has a lock contour, in particular a polygonal contour, at its first end for the torque-transmitting insertion of a key, preferably a key insert, particularly a polygonal key. Such a lock contour allows for the transmission of preferably high torques when a key insert with a corresponding key contour is inserted. Furthermore, such lock contours for key inserts are very robust compared to the keyways of conventional cylinder lock systems, especially under adverse environmental conditions such as dusty environments. The lock contour can, in particular, have one or more recesses and / or one or more projections.

[0025] The lock profile of the locking core is designed for the torque-transmitting insertion of a key. Accordingly, the lock profile is specifically designed so that, when a corresponding key is inserted, the lock profile forms a positive fit with the key profile for torque transmission.

[0026] The lock profile can, for example, have a recess, such as a polygonal recess, to receive a corresponding projection, such as a polygonal projection, of the key profile of an associated key. Furthermore, the lock profile can, for example, have a projection, such as a polygonal projection, to engage in a corresponding recess, such as a polygonal recess, of the key profile of an associated key.

[0027] According to the invention, the locking core has a contoured part with a lock contour, in particular an outer contour, wherein the contoured part projects laterally beyond the locking housing at the first end. The key accordingly has a key contour adapted to the lock contour, namely an inner contour.

[0028] The contoured part is flat and bounded by an outer contour at the edge, which forms the lock contour. This allows for a very flat design of the lock contour. This prevents, for example, a user from getting caught on a protruding part of the lock contour. Furthermore, this design reduces the number of points of attack for tampering.

[0029] The key accordingly has an inner contour that defines a flat area in which the magnet assembly, or one or more magnets thereof, are arranged. In this way, a robust key with a flat design can be provided.

[0030] The lock contour, for example the outer contour, and / or the key contour, for example the inner contour, can also be rounded, for example in the shape of a preferably oval. This improves the tamper resistance of the lock, as the rounded shape of the lock contour offers fewer points of attack for foreign tools, such as pliers.

[0031] The lock contour and / or the key contour are preferably designed asymmetrically in such a way that the lock contour allows the insertion of a key with a corresponding key contour in only one orientation.

[0032] In one embodiment, the predetermined magnet arrangement comprises a predetermined number of magnets, each with a predetermined position. In another embodiment, the predetermined magnet arrangement comprises a predetermined number of magnets, each with a predetermined position and a predetermined polar orientation. Preferably, the magnet arrangement comprises two or more magnets, each with a predetermined position and optionally a predetermined polar orientation. More preferably, at least two magnets in the magnet arrangement have different polar orientations, preferably antiparallel polar orientations. Furthermore, two magnets in the magnet arrangement can have polar orientations that are oriented at an angle to each other, for example, at a right angle.In a corresponding embodiment of the key, the magnet arrangement comprises one or more magnets arranged at a respective position, wherein preferably at least two magnets have different polar orientations, particularly preferably antiparallel polar orientations to each other.

[0033] By specifying a certain number of magnets with a predetermined position and optionally a predetermined polarity for the magnet arrangement, the security of the lock against unauthorized operation can be improved. In particular, different magnet arrangements can be implemented for keys of the same geometry in this way, so that a key can be magnetically coded for a corresponding lock, allowing the corresponding lock to be unlocked with that key, but not a lock that requires a differently magnetically coded key.

[0034] In one embodiment, the locking means comprise a locking element that is slidably mounted between a locking position, in which the locking element blocks the rotation of the locking core in the lock housing between the open and closed positions, and a release position, in which the locking element releases the rotation of the locking core in the lock housing between the open and closed positions. In this way, the rotation of the locking core can be selectively locked or released easily and reliably. Preferably, the locking element is designed to interact positively with the lock housing and the locking core in the closed position such that rotation of the locking core in the lock housing is blocked.

[0035] Preferably, the locking means comprise several locking elements which are slidably mounted between a respective locking position, in which the locking elements block the rotation of the locking core in the locking housing between the opening position and the closing position, and a respective release position, in which the locking elements release the rotation of the locking core in the locking housing between the opening position and the closing position.

[0036] The one or more locking elements can, for example, be mounted in a way that allows displacement axially and / or radially with respect to the axis of rotation of the locking core.

[0037] Preferably, one or more axially displaceable locking elements as well as one or more radially displaceable locking elements are provided. In this way, good vibration resistance of the locking mechanism and also increased security against tampering are achieved.

[0038] In one embodiment, the locking core has a receptacle in which the locking element is slidably mounted. With multiple locking elements, the locking core preferably has several receptacles, each with a slidably mounted locking element. This allows for a particularly compact design of the lock. The receptacle can be formed, for example, by a blind or through-hole in the locking core, or by a peripheral receptacle that is at least partially formed by the locking core.

[0039] In another embodiment, the locking housing has a receptacle in which the locking element is slidably mounted. With multiple locking elements, the locking housing preferably has several receptacles, each with a slidably mounted locking element. This allows for a particularly robust design of the locking mechanism.

[0040] Furthermore, a locking element can also be slidably mounted in a receptacle formed by both the locking core and the locking housing. This is conceivable, for example, with multi-part locking elements.

[0041] If one or more receptacles are arranged in the lock housing, preferably one or more corresponding recesses are provided in the locking core into which the locking elements engage in the locked position, thus blocking rotational movement between the locking core and the lock housing.

[0042] In one embodiment, the locking means comprise several locking elements that are mounted in receptacles arranged around the axis of rotation of the locking core in the lock housing and / or in the locking core, and which, in the locked position, engage in a corresponding recess in the locking core and / or lock housing. Preferably, at least two, and preferably all, of the receptacles and / or corresponding recesses arranged around the axis of rotation of the locking core have different distances from the axis of rotation of the locking core. In this way, it can be prevented that a locking element arranged in a receptacle, when the locking core is rotated, enters a recess different from the one associated with the receptacle and blocks the rotational movement between the locking core and the lock housing.

[0043] The locking means, in particular the one or more locking elements, are preferably arranged at a distance from the lock contour, preferably such that the locking means, in particular the one or more locking elements, do not have direct contact with the key when a key is placed on the first end of the locking core. Preferably, the one or more receptacles and / or associated recesses are spaced away from the lock contour.

[0044] In one embodiment, the lock has a retaining element designed to hold the locking element in the locked position when the key is removed, through magnetic interaction, particularly between the retaining element and the locking element. This increases the lock's resistance to vibration, ensuring that even in the presence of mechanical vibrations or shaking, the locking elements remain securely in the locked position when the key is removed, thus preventing the lock from being opened or closed without the key. In the case of multiple locking elements, the retaining element can preferably be designed to hold all multiple locking elements in the locked position when the key is removed, through magnetic interaction between the retaining element and the locking element.

[0045] The magnetic interaction between the retaining element and the locking element(s) is preferably an attractive interaction. However, it is also conceivable that the magnetic interaction between the retaining element and the locking element(s) is an attractive interaction.

[0046] For example, the locking element can be a magnet or include a magnet, and the holding element can also be a magnet or be made of a ferromagnetic material, for example as a ferromagnetic metal plate, such as a steel plate, or as a ferromagnetic pin, such as a steel pin.

[0047] In one embodiment, the locking element is designed to move into the release position when a key with the specified magnetic arrangement is placed on the first end of the locking core, by means of magnetic interaction, in particular magnetic repulsion, between the locking element and the magnetic arrangement. In the case of multiple locking elements, the locking elements are preferably designed to move into the release position when a key with the specified magnetic arrangement is placed on the first end of the locking core, by means of magnetic interaction, in particular magnetic repulsion, between the locking elements and the magnetic arrangement. Unlocking by means of magnetic repulsion between the magnetic arrangement and the one or more locking elements enables a reliable and smooth unlocking mechanism.

[0048] Preferably, the magnet arrangement has an associated magnet for each locking element, particularly preferably an associated respective magnet.

[0049] In one embodiment, the locking element is a magnet or comprises a magnet. With multiple locking elements, at least one, preferably several, of the locking elements are magnets or comprise a magnet. In this way, the locking element can be held in the locked position, for example, by magnetic attraction to a provided retaining element when the key is removed. Furthermore, the locking element can be moved into the release position, for example, by magnetic repulsion to a magnet in the magnetic assembly of a key, when the key is placed on the first end of the locking core.

[0050] The locking element can, in particular, comprise a magnet and a sleeve surrounding the magnet, especially a metal sleeve. This achieves greater shear force resistance of the locking element when blocking rotation of the locking core in the lock housing, thereby increasing the service life of the lock.

[0051] The locking element can also be multi-part and, for example, comprise a magnet and a magnetically connected steel pin, whereby the steel pin, in a locked position, prevents the rotation of the locking core within the lock housing. This can also increase the lock's durability.

[0052] In one embodiment, the lock has a contact surface arrangement for the engagement of the specified magnetic arrangement, and the locking elements are arranged and designed such that they release the rotation of the locking core within the lock housing between the open and closed positions when the specified magnetic arrangement comes into contact with the contact surface arrangement, particularly in a specified orientation. This facilitates the operation of the lock, as the user can verify the correct seating of the key on the lock by observing its contact with the contact surface arrangement. Furthermore, by positioning the magnetic arrangement against the contact surface arrangement, the distance between the magnetic arrangement and the locking elements can be kept as small as possible, thereby strengthening the magnetic interaction between the magnetic arrangement and the locking elements.

[0053] The contact surface arrangement can, in particular, have one or more contact surfaces designed for the contact of one or more magnets of the magnetic assembly. The contact surface arrangement is, in particular, arranged such that the magnetic assembly comes into contact with the contact surface arrangement when the key is inserted. The one or more contact surfaces of the contact surface arrangement can, in particular, be located at the first end of the locking core and / or on the lock housing.

[0054] If the locking means comprise one or more locking elements, the locking elements are preferably arranged in the area of ​​the one or more contact surfaces of the contact surface arrangement, so that when the magnet arrangement is applied, a magnetic interaction occurs between the magnet arrangement and the locking elements, by which the locking elements are moved into the release position.

[0055] In one embodiment, the contact surface arrangement is completely or at least partially separate from the lock contour, for example, offset radially outwards or inwards with respect to the rotation axis of the locking core. In a corresponding embodiment of the key, the magnetic arrangement is completely or at least partially located outside the key contour. In this way, the unlocking function can be structurally separated from the torque transmission function, resulting in a more robust design of the lock and the key.

[0056] In one embodiment, the contact surface arrangement is at least partially located on the lock contour, preferably on an inner surface of a receptacle of the lock contour. In a corresponding embodiment of the key, the magnet arrangement is at least partially located on the key contour. In this way, the lock can be better protected against manipulation by magnets held against it from the outside.

[0057] In one embodiment, the locking core is multi-part and comprises a core part arranged in the inner channel of the lock housing and a contour part with the lock contour, wherein the core part and the contour part are rotationally fixed to one another. For this purpose, the core part and the contour part can, for example, have corresponding contours with which the core part and the contour part interlock in a form-fitting manner. The core part and the contour part can, for example, be held together by a pin or a screw, such as a screw passing through the core part and screwed into an inner contour of the contour part.

[0058] Due to the multi-part design of the locking core, in particular with core part and contour part, it is possible, for example, to provide the lock with a desired lock contour as required by selecting a suitable contour part from several different types of contour parts.

[0059] In one embodiment, the key has a wall thickness of at least 4 mm. Preferably, the key's contour also has a wall thickness of at least 4 mm. This allows for higher torque transmission with the key. Preferably, the lock contour is designed to accommodate a key with a wall thickness of at least 4 mm.

[0060] The key is preferably made at least partially of metal, enabling high torque transmission. The handle of the key preferably extends at least 2 cm, more preferably at least 3 cm, and particularly preferably at least 4 cm, transversely to the key's axis of rotation. This allows the user to more easily apply higher torques to the key and, consequently, when the key is attached to the locking cylinder of a lock, to the locking cylinder itself.

[0061] Further features and advantages of the lock, the key and the locking system will become apparent from the following description of exemplary embodiments, with reference to the attached drawing.

[0062] The drawing shows Fig. 1a-an example of a lock, a key and a locking system, Fig. 2a-an additional example of a lock, a key and a locking system, Fig. 3a-an additional example of a lock, a key and a locking system, Fig. 4a-an embodiment of the lock, key and locking system according to the invention and Fig. 5a-an additional example of a lock, a key and a locking system.

[0063] The Figuren 1a-g , 2a-g Figures 3a-1 and 5a-e show embodiments that are useful for understanding the invention, but which are not claimed here. Figuren 4a-e is one embodiment of the present invention.

[0064] The Figuren 1a-g They show an example of a lock, a key, and a locking system. Fig. 1a shows key 2 in a perspective view from a slightly elevated angle. Fig. 1b shows key 2 in a perspective partial view from a low angle. Fig. 1c shows the shutter 20 in a perspective view from an oblique angle above or obliquely from the front. Fig. 1d The figure shows the lock 20 with the key 2 attached, in a perspective view from a slightly oblique angle above or from the front. Fig. 1e und 1f The figures show the lock 20 and the key 2 in a sectional view, specifically before the key 2 is attached to the

[0065] Closure 20 ( Fig. 1e ) and then ( Fig. 1f ). Fig. 1g shows the lock 20 with attached key 2 in an installation situation in a side view.

[0066] The key 2 and the lock 20 together form a locking system 80.

[0067] In the present example, the fastener 20 is designed as a latch fastener and the locking system 80 is designed accordingly as a latch fastener system. Alternatively, the fastener 20 could also be designed as a rod fastener or axial fastener and the locking system 80 accordingly as a rod fastener or axial fastener system.

[0068] The key 2 is a socket wrench with a handle 4 and a socket 6, which in this example are formed in one piece. The socket has a key contour 8, which in this example is designed as a polygonal contour, namely as a square projection. However, other key contours 8 are also conceivable. The socket 6 of the key has a collar 10 surrounding the key contour 8 with a magnetic arrangement 12, which comprises several magnets 14 with a predetermined position and predetermined polarity. The polarity of the individual magnets is specified in Fig. 1b each is marked by "N" or "S", where one is in Fig. 1b The area marked "N" corresponds to the magnetic north pole and is in Fig. 1b The area marked "S" corresponds to the magnetic south pole. Fig. 1e-f The polar orientation of the magnets depicted therein is also indicated by "N" and "S", where "N" shows the arrangement of the magnetic north pole and "S" the arrangement of the magnetic south pole of the respective magnet. The in Fig. 1e-f The visible magnets 14, marked "N" and "S", have antiparallel polar orientations.

[0069] The latch 20 has a latch housing 22 with an inner channel 24 in which a locking core 26 is rotatably mounted about the axis A. The latch housing 22 has a collar 30 on its front 28, from which a housing body 32 with an external thread 34 extends.

[0070] For assembly, the latch 20, with the housing body 32 leading, can be inserted into an opening 90 of a thin sheet metal door 92 until the collar 30 comes to rest against the sheet metal door 92. A nut 36 can then be screwed onto the external thread 34 from behind to fix the latch 20 to the sheet metal door 92.

[0071] The locking core 26 is designed at its first end 38, accessible from the front 28, for the torque-transmitting insertion of the key 2. For this purpose, the locking core 26 has at its first end 38 a lock contour 40 corresponding to the key contour 8, which in this case is designed as a polygonal contour, namely as a square recess to receive the key contour 8, which is designed as a square projection.

[0072] At the second end 42 of the locking core 26, opposite the first end 38, the locking core 26 carries a pivot 44, which is connected to the locking core 26 and pivot 44 via corresponding contours 46, 48 and is fixed to the locking core 26 by means of a screw 50. By inserting and turning the key 2, the locking core 26 and thus the pivot 44 can be rotated between an open position and a closed position. Fig. 1g Figure 1 illustrates the closed position in the installed state, in which the pivot tongue 44 engages a locking surface 94 of a frame 96 surrounding the sheet metal door 92, thus locking the sheet metal door 92. When the locking core 26 is rotated by, for example, 90°, the locking core 26, or the pivot tongue 44, moves into an open position in which the pivot tongue 44 no longer engages the locking surface 94, allowing the sheet metal door 92 to be opened.

[0073] The latch lock 20 further comprises locking means 52 which, when the key 2 is removed, block rotation of the locking core 26 in the lock housing 22 between the open and closed positions. In the example in Fig. 1a-g Several locking elements 54 are slidably mounted in respective edge-side receptacles 56 of the locking core 26. The locking elements 54 can be moved between a locking position (see ) in the respective receptacles 56. Fig. 1e ) and a release position (see Fig. 1f ) can be moved. In the locked position ( Fig. 1e The locking elements 54 engage in respective recesses 58 of a form element 60 attached to the locking housing 22 and thereby positively block rotation of the locking core 26 in the locking housing 22 between the open position and the closed position. In the release position ( Fig. 1f ) the locking elements 54 are retracted into the receptacles 56 and do not engage in the recesses 58, so that in this release position the locking elements 54 allow the rotation of the locking core 26 in the locking housing 22 between the open position and the closed position.

[0074] The locking elements 52 are designed to release the rotation of the locking core 26 in the lock housing 22 between the open and closed positions when the key 2 with the magnetic arrangement 12 is placed on the first end 38 of the locking core 26. In the case of the latch lock 20, this is achieved by the locking elements 54 being designed as magnets, and by the number, positions, and polar orientations of the magnets 14 of the magnetic arrangement 12 of the key 2 corresponding to the number, positions, and polar orientations of the locking elements 54 such that, when the key 2 is placed on the key, a magnet 14 of the magnetic arrangement 12 and a corresponding locking element 54 with the same magnetic poles are opposite each other, so that a magnetic repulsion force acts on the locking elements 54, which moves the locking elements 54 out of their respective recesses 58 into the release position.

[0075] In this way, the latch 20 can be unlocked with a matching key 2 with a predefined magnetic arrangement, while a key of the same shape 8 with a different magnetic arrangement will not unlock the latch 20. The latch 20 and key 2 are thus magnetically coded by the number, positions, and polar orientations of the magnets 14 of the magnetic arrangement 12 and the corresponding number, positions, and polar orientations of the locking elements 54.

[0076] To hold the locking elements 54 in the locked position when the key 2 is removed, a retaining element 62 in the form of a ferromagnetic sheet, for example, sheet steel, with a central opening 63 for the lock contour 40 is provided on the lock housing 22. The locking elements 54 are held in the recesses 58 by magnetic attraction between them and the retaining element 62. The strengths of the magnets 14 and the locking elements 54, which are designed as magnets, are adapted such that when the key 2 is inserted, the magnetic attraction between the locking elements 54 and the retaining element 62 is overcome by the magnetic repulsion between the magnets 14 and the locking elements 54, causing the locking elements 54 to move into the release position.

[0077] To increase the durability of the latch closure 20, magnets can also be used as locking elements 54 in one possible embodiment, each surrounded by a steel sleeve.

[0078] On the annular end face 64 of the locking housing 22, which in the present example is formed by a side of the retaining element 62, a marking 66 is provided which corresponds to a marking 16 on the key 2 in order to indicate to the user the correct alignment of the key 2 to the latch lock 20 for the correct alignment of the magnetic arrangement 12 to the locking elements 54.

[0079] The end face 64 of the latch 20 simultaneously forms a contact surface 67 of a contact surface arrangement 68 of the latch 20, which is designed for the contact of the magnetic arrangement 12 in the orientation specified by the markings 16 and 66. The contact surface 67 is arranged separately from the lock contour 40, specifically radially outside the lock contour 40 with respect to the axis of rotation A. The locking elements 54 are also arranged separately from the lock contour 40, namely in the area of ​​the contact surface 67.

[0080] In this way, the unlocking function, effected by the magnetic interaction between magnet arrangement 12 and locking elements 54 when the magnet arrangement 12 is in contact with the contact surface 67, is spatially and structurally separated from the torque transmission function, effected by the positive-locking interaction of key contour 8 and lock contour 40. This allows the lock contour 40 and the key contour 8 to be optimized for torque transmission, and in particular to be made more robust, without having to integrate moving or delicate components such as magnets and locking elements directly into the lock contour 40 and the key contour 8.

[0081] The Figuren 2a-g show another example of a lock, a key, and a locking system. Fig. 2a shows the key 102 and the lock 120 in perspective view. Fig. 2b shows the key 102 and the lock 120 in perspective view with partial breakout according to the in Fig. 2e The cutting plane designated "IIc". Figuren 2c und 2d show the key 102 and the lock 120 in a sectional view according to the in Fig. 2e cutting plane designated "IIc", specifically before the key 102 is attached ( Fig. 2c ) and after inserting the key 102 ( Fig. 2d ). The Fig. 2e shows a sectional view according to the one in Fig. 2c The cutting plane designated "IIe". Fig. 2f shows a sectional view according to the one in Fig. 2d The cutting plane designated "IIf". Fig. 2g shows one of the Fig. 2f Corresponding sectional view after rotating the locking core by 45°.

[0082] The key 102 and the lock 120 together form a locking system 180.

[0083] In the present example, the fastener 120 is designed as a latch fastener and the locking system 180 is designed accordingly as a latch fastener system. Alternatively, the fastener 120 could, for example, also be designed as a rod fastener or axial fastener and the locking system 180 accordingly as a rod fastener or axial fastener system.

[0084] Key 102 is also a socket key with a handle part 104 and a socket part 106, which in this example are formed in one piece. The socket part 106 has a key contour 108, which in this example is designed as a polygonal contour, namely as a cross-shaped projection. However, other key contours 108 are also conceivable. Key 102 has a magnetic arrangement 112 with several magnets 114 arranged on the key contour 108. The magnets 114 are inserted into four radial blind bores 109 in the key contour 108. The magnets 114 have predetermined polar orientations, which are partially indicated in the figures with "N" (magnetic north pole) and "S" (magnetic south pole).

[0085] The latch 120 has a latch housing 122 with an inner channel 124 in which a locking core 126 is rotatably mounted about the axis B. The latch housing 122 has a collar 130 on its front 128, from which a housing body 132 with an external thread 134 extends. The latch 120 can be mounted as described for the latch 20.

[0086] The locking core 126 is designed at its first end 138, accessible from the front 128, for the torque-transmitting insertion of the key 102. For this purpose, the locking core 126 has at its first end 138 a lock contour 140 corresponding to the key contour 108, which in this case is designed as a cross-shaped recess to receive the cross-shaped projection of the key contour 108.

[0087] At the second end 142 of the locking core 126, opposite the first end 138, the locking core 126 carries a pivot 144, which is connected to the locking core 126 and pivot 144 via corresponding contours 146, 148 and is fixed to the locking core 126 by means of a screw 150. The rotation of the locking core 126, and thus of the pivot 144, between an open position and a closed position with a key 102 inserted, occurs analogously to the previously described operation for the latch lock 20.

[0088] The latch lock 120 further comprises locking means 152 which, when the key 102 is removed, block rotation of the locking core 126 in the lock housing 122 between the open and closed positions. In the example in Fig. 2a-g Several locking elements 154 are mounted in receptacles 156 formed by the locking housing 122 and the locking core 126, allowing them to be radially displaceable with respect to the axis of rotation B. Each receptacle 156 comprises a first part 156a formed by the locking housing 122 and a second part 156b formed by the locking core 126. In the case of the latch lock 120, the locking elements 154 are each designed in two parts and each comprises a steel pin 154a and a magnet 154b, which are held together by the magnetic force between the steel pin 154a and the magnet 154b.

[0089] The locking elements 154 can be positioned between a locking position in the respective recordings 156 (see Fig. 2c and Fig. 2e ) and a release position (see Fig. 2d and Fig. 2f ) can be moved. In the locked position ( Fig. 2c and 2eThe locking elements 154 are arranged such that the respective steel pins 154a are located in both the first part 156a and the second part 156b of the respective receptacle 156 and thereby positively block rotation of the locking core 126 in the locking housing 122 between the open position and the closed position. In the release position ( Fig. 2d and 2f The locking elements 154 are arranged such that the steel pins 154a are arranged only in the first part 156a and the magnets 154b only in the second part 156b of the receptacle 156, so that in this release position the locking elements 154 allow the rotation of the locking core 126 in the locking housing 122 between the open position and the closed position, and the locking core 126 can move as described in Fig. 2g shown under the respective separation of the steel pins 154a from the magnets 154b, which can be rotated.

[0090] The locking means 152 are designed to release the rotation of the locking core 126 in the locking housing 122 between the open position and the closed position when the key 102 with the magnetic arrangement 112 is placed on the first end 138 of the locking core 126. In the latch lock 120, this is achieved by the fact that the number, positions and polar orientations of the magnets 114 of the magnet arrangement 112 of the key 102 correspond to the number, positions and polar orientations of the magnets 154b of the locking elements 154, so that when the key 102 is inserted, a magnet 114 of the magnet arrangement 112 and a respective magnet 154b of the locking element 154 with the same magnetic poles are opposite each other, so that a magnetic repulsion force acts on the magnets 154b, which moves the magnets 154b and thus also the respective steel pins 154a in the receptacle 156 into the release position.

[0091] In this way, the latch lock 120 can be unlocked with a matching key 102 with a predefined magnetic arrangement, while a key of the same shape 108 but with a different magnetic arrangement will not unlock the latch lock 120. The latch lock 120 and the key 102 are thus magnetically encoded by the number, positions, and polar orientations of the magnets 114 of the magnetic arrangement 112 and the corresponding number, positions, and polar orientations of the magnets 154b of the locking elements 154.

[0092] To hold the locking elements 154 in the locked position when the key 102 is removed, retaining elements 162 in the form of ferromagnetic elements, for example steel elements, are provided in the lock core 126. Magnetic attraction between the magnets 154b of the locking elements 154 and the retaining elements 162 holds the magnets 154b, and thus the locking elements 154 as a whole, in the locked position. The strength of the magnets 114 and the magnets 154b of the locking elements 154 is adapted such that when the key 102 is inserted, the magnetic attraction between the magnets 154b and the retaining elements 162 is overcome by the magnetic repulsion between the magnets 114 and the magnets 154b, and the locking elements 154 move into the release position.

[0093] In the present example, the lock contour 140 and the key contour 108 are designed asymmetrically, so that the key contour 108 can only be inserted into the lock contour 140 in a predetermined orientation, in which the correct orientation of the magnet arrangement 112 to the magnets 154b of the locking elements 154 is ensured when the key 102 is inserted.

[0094] Four side surfaces of the lock contour 140 form contact surfaces 167 of a contact surface arrangement 168 of the latch 20 in the case of the latch 120. These contact surfaces are designed for the contact of the magnetic arrangement 112 in the orientation determined by the asymmetrical shape of the lock contour 140 and the key contour 108. The contact surfaces 167 are arranged on the lock contour 140 of the latch 120. The locking elements 154 are also arranged on the lock contour 140, specifically in the area of ​​the contact surfaces 167.

[0095] In this way, the security of the latch lock 120 against unauthorized operation is increased, since the contact surfaces 167 are not easily accessible from the outside and therefore manipulation of the latch lock 120 without a suitable key by means of held magnets is made more difficult.

[0096] The Figuren 3a-l They show another example of a lock, a key, and a locking system. Fig. 3a-b show key 202 in a perspective view from a slightly oblique angle ( Fig. 3a ) and diagonally downwards ( Fig. 3b ). Fig. 3c shows the shutter 220 in a perspective view from obliquely above or obliquely in front, with some parts shown as transparent with dashed lines for the sake of clarity. Fig. 3d shows a side view of the key 202 and the lock 220. Fig. 3e shows a top view of the 220 shutter. Fig. 3f und 3g show perspective views with partial breakout according to the in Fig. 3e cutting plane designated "IIIf", specifically before the key 202 is attached ( Fig. 3f ) and after inserting key 202 ( Fig. 3g). Fig. 3f The dotted circle further shows an enlarged detail in section view according to the viewing direction marked "X" in the perspective view. Fig. 3h und 3i show sectional views according to the in Fig. 3e cutting plane designated "IIIh", specifically before the key 202 is attached ( Fig. 3h ) and after inserting key 202 ( Fig. 3i ). The Fig. 3j, 3k und 3l show sectional views according to the in Fig. 3d cutting plane designated "IIIj", before the key 202 is attached ( Fig. 3j ), after inserting key 202 ( Fig. 3k ) and after turning the locking core 226 with the attached key 202 by 45° ( Fig. 3l ).

[0097] The key 202 and the lock 220 together form a locking system 280.

[0098] In the present example, the fastener 220 is designed as a latch fastener and the locking system 280 is designed accordingly as a latch fastener system. Alternatively, the fastener 220 could, for example, also be designed as a rod fastener or axial fastener and the locking system 280 accordingly as a rod fastener or axial fastener system.

[0099] The key 202 is a socket key with a handle part 204 and a socket part 206, which in this example are formed in one piece. The socket part 206 has a key contour 208, which in this example includes four ring-segment-like projections 209. However, other key contours 208 are also conceivable. The socket part 206 of the key has a magnetic arrangement 212 with several magnets 214, 215, each with predefined positions and predefined pole orientations. Some of the magnets 214 of the magnetic arrangement 212 are arranged in surfaces 210 of the socket part 206 that are set back from and between the ring-segment-like projections 209. Another magnet 215 of the magnetic arrangement 212 is arranged in a central surface 211 that is set back from the surfaces 210.

[0100] The polar orientations of the individual magnets 214, 215 are partially indicated in the figures with "N" (magnetic north pole) and "S" (magnetic south pole).

[0101] The latch 220 has a locking housing 222 (in Fig. 3c (For clarity, some parts are shown with dashed lines indicating transparency) with an inner channel 224 in which a locking core 226 is rotatably mounted about the axis C. The locking housing 222 has a collar 230 on the front 228 of the latch 220, from which a housing body 232 with an external thread 234 extends. The latch 220 can be mounted as described for the latch 20.

[0102] The locking core 226 is designed at its first end 238, accessible from the front 228, for the torque-transmitting insertion of the key 202. For this purpose, the locking core 226 has at its first end 238 a lock contour 240 corresponding to the key contour 208, which in this case is formed in the form of four recesses 241 corresponding to the ring-segment-like projections 209.

[0103] At the second end 242 of the locking core 226, opposite the first end 238, the locking core 226 carries a pivot 244, which is connected to the locking core 226 and pivot 244 via corresponding contours 246, 248 and is fixed to the locking core 226 by means of a screw 250. The rotation of the locking core 226, and thus of the pivot 244, between an open position and a closed position with a key 202 inserted, occurs analogously to the previously described operation for the latch lock 20.

[0104] The latch lock 220 further comprises locking means 252 which, when the key 202 is removed, prevent the locking core 226 from rotating in the lock housing 222 between the open and closed positions. In the example shown, the locking means 252 comprise Fig. 3a-1 axial locking elements 254 for axial locking and further a radial locking element 255 for radial locking.

[0105] The axial locking elements 254 are designed in two parts and each comprises a steel pin 254a and a magnet 254b. The axial locking elements 254 are each axially displaceable in receptacles 256 formed by the locking core 226 and the locking housing 222. Each receptacle 256 accordingly comprises a first part 256a formed by the locking housing 222 and a second part 256b formed by the locking core 226.

[0106] The locking elements 254 can be positioned between a locking position in the respective recordings 256 (see Fig. 3h ) and a release position (see Fig. 3i ) can be moved. In the locked position ( Fig. 3h The locking elements 254 are arranged such that the respective steel pins 254a are located in both the first part 256a and the second part 256b of the respective receptacle 256 and thereby positively block rotation of the locking core 226 in the locking housing 222 between the open position and the closed position. In the release position ( Fig. 3i ) the locking elements 254 are arranged such that the steel pins 254a are arranged only in the first part 256a and the magnets 254b only in the second part 256b of the receptacle 256, so that in this release position the locking elements 254 release the rotation of the locking core 226 in the locking housing 222 between the open position and the closed position and the locking core 226 - when the radial locking element 255 is also in the release position - can be rotated with the steel pins 254a being separated from the magnets 254b in each case.

[0107] The radial locking element 255 is also multi-part and comprises a steel pin 255a and a magnet 255b, as well as two slides 255c-d, which are arranged in a receptacle 257 of the locking core 226. The receptacle has a central, axial part 257a in which the steel pin 255a and the magnet 255b are axially displaceable, and a radial part 257b in which the slides 255cd are radially displaceable. The slides 255c-d can be moved within the radial part 257b of the receptacle 257 between a respective locking position (see figure). Fig. 3f ) and a release position (see Fig. 3g ) of the radial locking element 255 can be moved. In the locking position ( Fig. 3f ) the slides 255c-d of the locking element 255 engage in respective radial recesses 259 in the locking housing 222 and thereby positively block rotation of the locking core 226 in the locking housing 222 between the open position and the closed position. In the release position ( Fig. 3g ) the slides 255c-d of the locking element 255 are retracted into the receptacle 257 and do not engage in the recesses 259, so that in this release position the locking element 255 releases the rotation of the locking core 226 in the locking housing 222 between the open position and the closed position.

[0108] The locking means 252 are designed to release the rotation of the locking core 226 in the locking housing 222 between the opening position and the closing position when the key 202 with the magnetic arrangement 212 is placed on the first end 238 of the locking core 226.

[0109] With regard to the axial locking elements 254, this is achieved in the latch lock 220 by the fact that the number, positions and pole orientations of the magnets 214 of the magnet arrangement 212 of the key 202 correspond to the number, positions and pole orientations of the magnets 254b of the axial locking elements 254, so that when the key 202 is inserted, a magnet 214 of the magnet arrangement 212 and a respective magnet 254b of an axial locking element 254 with the same magnetic poles are opposite each other, so that a magnetic repulsion force acts on the magnets 254b and thus on the respective locking elements 254, which moves the locking elements 254 out into the release position.

[0110] With regard to the radial locking element 255, unlocking of the latch lock 220 is achieved by the position and pole alignment of the magnet 215 corresponding to the position and pole alignment of the magnet 255b such that when the key 202 is inserted, the magnet 215 of the magnet arrangement 212 and the magnet 255b are opposite each other with the same magnetic poles, so that a magnetic repulsion force acts on the magnet 255b and thus on the steel pin 255a, which moves the steel pin 255a in the direction of the slides 255c-d. Corresponding inclined surfaces 264, 265 are provided on the slides 255c-d and the steel pin 255a, which interact when the steel pin 255a is moved in the direction of the slides 255c-d in such a way that the slides 255c-d are retracted into the receptacle 257 and the locking element 255 is thus moved into the release position.

[0111] In this way, the latch lock 220 can be unlocked with a matching key 202 with a predefined magnetic arrangement, while a key of the same shape 208 but with a different magnetic arrangement will not unlock the latch lock 220. The latch lock 220 and the key 202 are thus magnetically coded by the number, positions, and polar orientations of the magnets in the magnetic arrangement and the corresponding number, positions, and polar orientations of the locking elements 254.

[0112] To hold the axial locking elements 254 in the locked position when the key 202 is removed, retaining elements 262 in the form of ferromagnetic elements are provided in the locking core 226. The locking elements 254 are held in the locked position by magnetic attraction between the magnets 254b of the locking elements 254 and the retaining elements 262. The strengths of the magnets 214 and 254b of the locking elements 254 are adapted such that, when the key 202 is inserted, the magnetic attraction between the magnets 254b and the retaining elements 262 is overcome by the magnetic repulsion between the magnets 214 and 254b, and the locking elements 254 move into the release position.

[0113] To hold the radial locking element 255 in the locked position when the key 202 is removed, a retaining element 263 in the form of a ferromagnetic element is provided in the central receptacle 257a of the locking core 226. Furthermore, corresponding magnets 266 are provided on the slides 255c-d and arranged such that two magnets 266 with the same poles are opposite each other. Magnetic attraction between magnet 255b and the retaining element 263 holds magnet 255b, and thus also the steel pin 255a, in a position away from the slides 255c-d. Magnetic repulsion between the corresponding magnets 266 of the slides 255c-d holds the slides 255c-d in the recesses 241, and thus holds the locking element 255 in the locked position.The strengths of magnet 215, magnet 255b and magnets 266 are adapted such that the magnetic attraction between magnet 255b and the retaining element 263 is overcome by the magnetic repulsion between magnet 215 and magnet 255b when the key 202 is attached, and when magnet 255b and steel pin 255a are moved towards the slides 255c-d, the slides 255c-d are retracted into the receptacle 257 by the interaction of the inclined surfaces 264, 265 against the magnetic repulsion of magnets 266, thus moving the radial locking element 255 into the release position.

[0114] In the case of the latch closure 220, the surfaces 267 between the recesses 241 and the centrally projecting surface 268 form respective contact surfaces of a contact surface arrangement 269 of the latch closure 220, which is provided for the contact of the magnet arrangement 212.

[0115] The combination of radially and axially movable locking elements results in a particularly high vibration resistance of the locking mechanism in the 220 latch lock.

[0116] The Figuren 4a-e show an embodiment of the closure, key and locking system according to the invention. Fig. 4a shows the key 302 and the lock 320 in a perspective view from a slant below and a slant behind, respectively. Fig. 4b shows the key 302 in a bottom view. Fig. 4c shows the 320 lock in a top view of the lock contour. Fig. 4d-e show the key 302 and the lock 320 in a three-quarter sectional view according to the one in Fig. 4b-c cutting planes designated "IVd / e", before the key 302 is attached ( Fig. 4d ) and after attaching key 302 ( Fig. 4e ).

[0117] The key 302 and the lock 320 together form a locking system 380.

[0118] The 320 shutter has a fundamentally similar design to the 20 shutter. Fig. 1a-g In this respect, reference is made to the above statements regarding Fig. 1a-g Referenced components are sometimes provided with the same reference symbols, even if they are in Fig. 1a-g and Fig. 4a-e They may be designed differently.

[0119] The closure 320 differs from the closure 20 in that the locking core 326 has at its first end accessible from the front 28 of the closure 320 a contour part 339 which preferably projects laterally beyond the collar 30 of the closure housing 22 and has a lock contour 340 which in this case is designed as an outer contour.

[0120] When installed in an opening in a thin wall, the collar 30 of the closure housing 22 forms a bearing surface on one side of the thin wall. From the other side of the thin wall, a nut can be screwed onto the external thread 34 to secure the closure in the opening.

[0121] The key 302 has an attachment part 306 with a key contour 308 adapted to the lock contour 340 in the form of an inner contour. In Several magnets 314 with a predetermined position and pole orientation are arranged in a recessed area 310 surrounded by the key contour 308, forming a magnet arrangement 312. The handle part 304 of the key 302 is formed by a handling contour arranged on the back of the attachment part 306.

[0122] In the present closure 320, the locking core 326 is formed in multiple parts, comprising the contour part 339 and a core part 327 arranged in the inner channel 24 of the closure housing 22. The contour part 339 and the core part 327 are rotationally fixed to one another. For this purpose, in the present embodiment, the contour part 339 has an outer contour 370 and the core part 327 has a corresponding inner contour 371, for example, a polygonal contour, which interlock positively. In the present embodiment, the contour part 339 is also connected to the core part 327 by means of a screw 50, which is guided through the core part 327 and screwed into an internal thread 372 on the contour part 339. The multi-part design of the locking core 326 with a separate contour part 339 allows, if necessary, the selection of a contour part from a quantity of different contour parts.

[0123] Alternatively, contour part 339 and core part 327 can also be formed in one piece.

[0124] The collar 30 of the closure housing 22 can be used as in Fig. 4d As shown, a circumferential seal 323, for example an O-ring, is provided, preferably adjacent to the core part 327, which seals the closure housing 22 to the wall and can also prevent the ingress of moisture between the closure housing 22 and the core part 327.

[0125] The locking means 352 of the latch 320 comprise several locking elements 354, which are slidably mounted in respective edge receptacles 356 of the latch housing 22. The locking elements 354 can be moved in the respective receptacles 356 between a locking position (see Fig. 4d ) and a release position (see Fig. 4e ) can be moved. In the locked position ( Fig. 4d ) the locking elements 354 engage in respective recesses 358 of the locking core 326 and thereby positively block rotation of the locking core 326 in the locking housing 22 between the open position and the closed position. In the release position ( Fig. 4e ) the locking elements 354 are retracted into the receptacle 356 and do not engage in the recesses 358, so that the locking elements 354 allow the rotation of the locking core 326 in the locking housing between the open position and the closed position.

[0126] The locking elements 354 are designed as magnets whose position and pole direction are adapted to the magnet arrangement 312 of the key 302 such that the locking elements 354 are moved into the release position when the key 302 is placed on the key ( Fig. 4d For this purpose, the locking elements 354, designed as magnets, and the magnets 314 of the magnet arrangement 312 are arranged and aligned such that, when a key 302 is inserted, each locking element 354 is opposed by a corresponding magnet 314 of the magnet arrangement 314 with antiparallel pole alignment, so that a force acts on the locking element 354, which moves the locking element 354 into the release position. Furthermore, retaining elements 362 in the form of ferromagnetic elements are provided in the locking core 326, in the present example in the contour part 339 of the locking core 326, which hold the locking elements 354 in the locked position without an inserted key 302. Fig. 4c The magnets 314 and locking elements 354 are adapted so that the holding force between holding element 362 and respective locking element 354 is overcome by the repulsive force between magnet 314 and respective locking element 354 when the key 302 is placed on the key.

[0127] In this example, the lock contour 340 and the key contour 308 are asymmetrically designed, so that the key contour 308 can only be placed on the lock contour 308 in a predetermined orientation. With the ten locking elements 354 designed as magnets in this example and the corresponding ten magnets 314 of the magnet arrangement 312, this results in 210 ≤ 1024 different possible combinations for the polarity directions of the magnets.

[0128] The polar orientations of the individual magnets 314 or the locking elements 354 are partially indicated in the figures with "N" (magnetic north pole) and "S" (magnetic south pole).

[0129] In the present example, the receptacles 356 and associated recesses 358 for the several locking elements 354 are also spaced at different distances from the axis of rotation D of the locking core 326 (see Fig. 4c This prevents a locking element 354 from moving into a different receptacle 356, and thus into a locking position, during or after pivoting the locking core 326, particularly from the locked position. This would block the rotation of the locking core 326 back into the locked position, for example. As a result, the locking core 326 can be moved freely into the locked position, since the locking elements 354 can only return to their locked positions in their respective receptacles 356 once the locked position is reached and the key 302 has been removed.

[0130] The varying distances of the receptacles 356 from the axis of rotation D of the locking core 326 also allow, for example, an increase in the number of possible combinations for the magnet arrangement 312, since, in addition to the polarity of the individual magnets 314, different radial positions for the individual magnets 314 relative to the axis of rotation D of the locking core 326 can be selected. For this purpose, the magnetic force of the locking elements 354 and the magnets 314 is preferably dimensioned such that a locking element 354 is only moved into the respective release position when the associated magnet 314 is positioned at a predetermined distance from the axis of rotation D.

[0131] The Figuren 5a-e show another example of a lock, a key, and a locking system. Fig. 5a shows the key 402 and the lock 420 in perspective view. Fig. 5b shows the key 402 in a top view from the front, showing the key contour. Fig. 5c shows the 420 lock in a top view of the lock contour. Fig. 5d-e show the key 402 and the lock 420 in three-quarter section view according to the in Fig. 5b-c cutting planes designated "Vd / e", specifically before attaching the key 402 ( Fig. 5d ) and after attaching key 402 ( Fig. 5e ).

[0132] The key 402 and the lock 420 together form a locking system 480.

[0133] The 420 shutter has a fundamentally similar internal structure to the 20 shutter. Fig. 1a-g In this respect, reference is made to the above statements regarding Fig. 1a-g Referenced components are sometimes provided with the same reference symbols, even if they are in Fig. 1a-g and Fig. 4a-e They may be designed differently.

[0134] The lock 420 differs from the lock 20 in that the lock 420 is not designed as a latch lock, but in the form of a profile cylinder with a locking lug 444 that is rotationally fixed to the locking core 426, as in Fig. 4a As shown, the locking mechanism 420 can optionally be held in a predetermined position by a spring 445 when it is not actuated. The locking housing 422 has the form of a profile cylinder, so that the locking mechanism 420 can be used instead of a conventional cylinder lock.

[0135] The locking core 426 has a lock contour 440 at its first end, accessible from the front 28 of the lock 420. This contour is designed as an inner contour, for example, as a square recess. The key 402 accordingly has a fitting 406 with a key contour 408 adapted to the lock contour 440 in the form of a projecting outer contour. Alternatively, the lock contour 440 could be designed as an outer contour, for example, as a square projection, and the key contour 408 as an inner contour, for example, a square inner contour.

[0136] The locking means 452 of the latch 420 comprise several locking elements 454 designed as magnets, which are slidably mounted in respective edge receptacles 456 of the latch housing 422. The locking elements 454 can be moved in the respective receptacles 456 between a locking position (see below) and a locking position (see below). Fig. 5d ), in which the locking elements 454 engage in respective recesses 458 of the locking core, and a release position ( Fig. 5e ), into which the locking elements 454 are moved when the key 402 is inserted with adapted magnetic arrangement 412 and release the rotation of the locking core 426 in the locking housing 422.

[0137] In the present example, the locking core 426 is formed in two parts, comprising a core part 427 arranged in the inner channel 424 of the locking housing 422 and a contour part 439 with the lock contour 440. The core part 427 and the contour part 439 are connected to each other in a rotationally fixed manner by means of an outer contour 470 of the core part engaging positively with an inner contour 471 of the contour part 439, and the screw 50 being screwed through the core part 427 into an internal thread 472 in the contour part 439.

[0138] The lock contour 440 and the key contour 408 are asymmetrically designed, so that the key 402 can only be placed on the lock contour 440 in a predetermined orientation. With the locking means 452, which in this example comprise nine locking elements 454 designed as magnets, and correspondingly nine magnets 414 of the magnet arrangement 412, this results in 2⁹ ≤ 512 different possible combinations for the polarity directions of the magnets.

[0139] The polar orientations of the individual magnets 414 or the locking elements 454 are partially indicated in the figures with "N" (magnetic north pole) and "S" (magnetic south pole).

[0140] As with the clasp 320, the receptacles 456 and associated recesses 458 for the locking elements 454 in the clasp 420 are also spaced at different distances from the axis of rotation of the locking core 426 (see Fig. 5c ), to prevent a locking element 454 from entering a different receptacle 456 and thus a locking position when the locking core 426 pivots, which could, for example, block the rotation of the locking core 426 back to its starting position.

[0141] The retaining element 462 in the closure 420 is designed as a ring-shaped sheet made of ferromagnetic metal, which is inserted into the core part 439. Bezugszeichenliste:

[0142] 2, 102, 202, 302, 402 Key 4, 104, 204, 304, 404 Handle part 6, 106, 206, 306, 406 Attachment part 8, 108, 208, 308, 408 Key contour 10 Collar of the attachment part 12, 112, 212, 312, 412 Magnet arrangement 14, 114, 214, 215, 314, 414 Magnet 16 Marking 20, 120, 220, 320, 420 Lock 22, 122, 222, 422 Lock housing 24, 124, 224, 424 Inner channel 26, 126, 226, 326, 426 Locking core 28, 128, 228 Front 30, 130, 230 Collar of the locking housing 32, 132, 232 Housing body 34, 134, 234 External thread 36 Nut 38, 138, 238 First end of the locking core 40, 140, 240, 340, 440 Lock contour 42, 142, 242 Second end of the locking core 44, 144, 244 Rotary tongue 46, 48, 146, 148, 246, 248 Corresponding contours 50, 150, 250 Screw 52, ​​152, 252, 352, 452 Locking device 54, 154, 254, 255, 354, 454 Locking element 56, 156, 256, 257, 356, 456 Receptacle 58, 259 Recess 60 Form element 62, 162, 262, 263, 362, 462 Retaining element 63 Opening 64 End face 66 Marking 67, 167, 267, 268 Contact surface 68, 168,269 ​​Mounting surface arrangement 80, 180, 280, 380, 480 Locking system 90 Opening 92 Sheet metal door 94 Locking surface 96 Frame 109 Blind hole 154a, 254a, 255a Steel pin 154b, 254b, 255b Magnet 156a First part of the receptacle 156 156b Second part of the receptacle 156 164 Side surface 209 Projection 210 Surface 211 Surface 241 Recess 255c-d Slide 256a First part of the receptacle 256 256b Second part of the receptacle 256 257a Axial part of the receptacle 257 257 Bradial part of the receptacle 257 264, 265 Inclined surface 266 Magnet 310 Surface 323 Seal 327, 427 Core part 339, 439 Contour part 358, 458 Recess 370, 470 Outer contour of the contour part 371, 471 Inner contour of the core part 372, 472 Internal thread of the contour part 444 Closing lug 445 Spring A, B, C, D Axis of rotation,

Claims

1. Lock (20, 120, 220, 320, 420), in particular sash lock, - with a lock housing (22, 122, 222, 422) and - with a lock core (26, 126, 226, 326, 426) rotatably mounted in the lock housing (22, 122, 222, 422), - wherein the lock core (26, 126, 226, 326, 426), at a first end (38, 138, 238) accessible from a front side (28, 128, 228) of the lock (20, 120, 220, 320, 420), is formed for torque-transmitting attachment of a key (2, 102, 202, 302, 402), in particular a socket key, and - wherein the lock (20, 120, 220, 320, 420) has blocking means (52, 152, 252, 352, 452), which, when the key (2, 102, 202, 302, 402) is removed, block rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between an open position and a closed position, - wherein the blocking means (52, 152, 252, 352, 452) are configured to release the rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between the open position and the closed position when a key (2, 102, 202, 302, 402), in particular a socket key, with a predetermined magnet arrangement (12, 112, 212, 312, 412) is mounted on the first end (38, 138, 238) of the lock core (26, 126, 226, 326, 426), characterized - in that the lock core (326) has a contour part (339) with a lock contour (340), wherein the contour part (339) projects laterally beyond the lock housing (22) at the first end and wherein the contour part (339) is flat and is delimited by an outer contour on the edge, which outer contour forms the lock contour (340).

2. Lock according to claim 1, characterized in that the predetermined magnet arrangement (12, 112, 212, 312, 412) comprises a predetermined number of magnets (14, 114, 214, 215, 314, 414) each having a predetermined position and optionally a predetermined pole orientation.

3. Lock according to claim 1 or 2, characterized in that the blocking means (52, 152, 252, 352) comprise a blocking element (54, 154, 254, 255, 354, 454) which is mounted displaceably between a blocking position, in which the blocking element blocks the rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between the open position and the closed position, and a release position, in which the blocking element (54, 154, 254, 255, 354, 454) releases the rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between the open position and the closed position.

4. Lock according to claim 3, characterized in that the lock core (26, 126, 226, 326, 426) and / or the lock housing (22, 122, 222, 422) has a receptacle (56, 156, 256, 257, 356, 467) in which the blocking element (54, 154, 254, 255, 354, 454) is displaceably mounted.

5. Lock according to claim 3 or 4, characterized in that the blocking means comprise a plurality of blocking elements, which blocking elements are mounted in respective receptacles in the lock housing and / or in the lock core, the receptacles being arranged around the axis of rotation of the lock core, and which blocking elements in the blocking position engage in a respective associated recess in the lock core and / or lock housing, wherein preferably at least two, in particular all, of the receptacles arranged around the axis of rotation of the lock core and / or associated recesses have different distances from the axis of rotation of the lock core.

6. Lock according to one of claims 3 to 5, characterized in that the lock (20, 120, 220, 320, 420) has a retaining element (62, 162, 262, 263, 362, 462) which is configured to retain, when the key (2, 102, 202, 302, 402) is removed, the blocking element (54, 154, 254, 255, 354, 454) in the blocking position by magnetic interaction, in particular between the retaining element (62, 162, 262, 263, 362, 462) and the blocking element (54, 154, 254, 255, 354, 454).

7. Lock according to one of claims 3 to 6, characterized in that the blocking element (54, 154, 254, 255, 354, 454) is configured to be moved into the release position when a key (2, 102, 202, 302, 402) with the predetermined magnet arrangement (12, 112, 212, 312, 412) is attached onto the first end (38, 138, 238) of the lock core (26, 126, 226, 326, 426), namely by magnetic interaction, in particular magnetic repulsion, between the blocking element (54, 154, 254, 255, 354, 454) and the magnet arrangement (12, 112, 212, 312, 412).

8. Lock according to any one of claims 3 to 6, characterized in that the blocking element (54, 154, 254, 255, 354, 454) is a magnet or comprises a magnet.

9. Lock according to one of claims 1 to 8, characterized in that the lock (20, 120, 220, 320, 420) has an abutment surface arrangement (68, 168, 269) for abutment of the predetermined magnet arrangement (12, 112, 212, 312, 412) and the blocking means (52, 152, 252, 352, 452) are arranged and configured in such a way that the blocking means (52, 152, 252, 352, 452) release the rotation of the lock core (26, 126, 226, 326, 426) in the lock housing (22, 122, 222, 422) between the open position and the closed position when the predetermined magnet arrangement (12, 112, 212, 312, 412) comes into contact with the abutment surface arrangement (68, 168, 269).

10. Lock according to claim 9, characterized in that the abutment surface arrangement (68, 168, 269) is arranged completely or at least partially separately from the lock contour (40, 140, 240, 340, 440), for example offset radially outwards or inwards in relation to the axis of rotation (A, B, C, D) of the lock core (26, 126, 226, 326, 426).

11. Lock according to one of claims 1 to 10, characterized in that the lock core (26, 126, 226, 326, 426) is formed as multiple parts and has a core part (327, 427) arranged in the inner channel (24, 124, 224, 424) of the lock housing (22, 122, 222, 422) and a contour part (339, 439) with the lock contour (440), the core part (327, 427) and the contour part (339, 439) being connected to one another in a rotationally fixed manner.

12. Key (2, 102, 202, 302, 402), preferably socket key, in particular for a lock (20, 120, 220, 320, 420) according to one of claims 1 to 11, - with a handle part (4, 104, 204, 304) and an attachment part (6, 106, 206, 306, 406), - wherein the attachment part (6, 106, 206, 306, 406) has a key contour (8, 108, 208, 308, 408), in particular a polygonal contour, for torque-transmitting attachment to a lock core (26, 126, 226, 346, 426) of a lock (20, 120, 220, 320, 420), - wherein the key (2, 102, 202, 302, 402) has a magnet arrangement (12, 112, 212, 312, 412) on the attachment part (6, 106, 206, 306, 406), characterized - in that the key (302) has an inner contour (308) that defines a flat area in which the magnet arrangement (312) is arranged.

13. Key according to claim 12, characterized in that the magnet arrangement (12, 112, 212, 312, 412) comprises one or more magnets (14, 114, 214, 215, 314, 414) arranged at a respective position, preferably at least two magnets (14, 114, 214, 215, 314, 414) having different pole orientations.

14. Key according to claim 12 or 13, characterized in that the magnet arrangement (12, 112, 212, 312, 412) is arranged at least partially separately from the key contour (8, 108, 208, 308, 408) and / or at least partially on the key contour (8, 108, 208, 308, 408).

15. Lock system (80, 180, 280, 380, 480), in particular sash lock system, - with a lock (20, 120, 220, 320, 420) according to one of claims 1 to 11 and - with a key (2, 102, 202, 302, 402) matching the lock (20, 120, 220, 320, 420), in particular according to one of claims 12 to 14.

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