Magnetically encoded lock

Abstract

The present invention relates to a lock (20, 120, 220, 320, 420), in particular a window lock, comprising a lock housing (22, 122, 222, 422) and a lock core (26, 126, 226, 326, 426) rotatably assembled within the lock housing (22, 122, 222, 422). The lock core (26, 126, 226, 326, 426) is formed at a first end (38, 138, 238) accessible from the front side (28, 128, 228) of the lock (20, 120, 220, 320, 420) for attaching a key (2, 102, 202, 302, 402), in particular a socket key, to transmit torque. The lock (20, 120, 220, 320, 420) has preventing means (52, 152, 252, 352, 452) for preventing rotation of the lock core (26, 126, 226, 326, 426) within the lock housing (22, 122, 222, 422) between an open position and a closed position when the key (2, 102, 202, 302, 402) is removed. The preventing means (52, 152, 252, 352, 452) is configured such that a key (2, 102, 202, 302, 402), in particular a socket key, having a predetermined magnet arrangement (12, 112, 212, 312, 412), allows rotation of the lock core (26, 126, 226, 326, 426) within the lock housing (22, 122, 222, 422) between an open position and a closed position when assembled to the first end (38, 138, 238) of the lock core (26, 126, 226, 326, 426). The present invention further relates to a key (2, 102, 202, 302, 402) and a lock system (80, 180, 280, 380, 480).

Description

Technical Field

[0001] The present invention relates to a lock, particularly a window lock, comprising a lock housing and a lock core rotatably assembled within the lock housing. The lock core is formed at a first end accessible from the front side of the lock for attaching a key, particularly a socket key, so as to transmit torque. The lock has preventing means for preventing rotation of the lock core within the lock housing between an open position and a closed position when the key is removed. The present invention also relates to a key for such a lock, particularly a socket key, and a lock system comprising such a lock and such a key, particularly a window lock system.

[0002] Locks, such as window locks and the like, have been used in the prior art as industrial hardware components for locking, for example, thin sheet metal doors. A simple window lock has a lock-side contour on the lock core in the form of, for example, a square end or a square recess for attaching a key having a corresponding key-side contour, such as a socket key having a square hollow contour or a square contour, whereby high torque can be transmitted from the socket key to the lock core and thus to the rotating tongue. Thus, when opening and closing the window lock, it is possible to eliminate a very high frictional force, often present, between the rotating tongue and the preventing surface of the frame surrounding the sheet metal door with which the rotating tongue engages on the back side. A drawback of such window locks is the low level of security against unauthorized operation. This is because such window locks can be opened and closed very easily, even without an appropriate key, for example, by means of pliers.

[0003] Furthermore, prior art has revealed window locks in which a conventional cylinder lock is incorporated within the window lock or its lock core. Such conventional cylinder locks have a lock core with a key passage, and a movable anti-tamper element, such as an anti-plate (for plate cylinders), an anti-disc (for disc cylinders), or an anti-pin (for pin cylinders), prevents the lock core from rotating within the lock housing if it cannot be mechanically moved to a specific position by the key-side contour of a suitable key inserted into the key passage. This provides a high level of security against tampering. However, conventional cylinder locks are more susceptible to damage than socket key locks and are therefore not as robust under unfavorable environmental conditions, or require a key cover to prevent dust and dirt from contaminating the intricate key passage or movable anti-tamper element, which complicates the handling of the lock. In addition, due to the low leverage of standard cylinder keys and the delicate mechanism of conventional cylinder locks, standard cylinder keys can only transmit very low torque, which, as mentioned above, limits the use of conventional cylinder locks in some window locks that require high torque for opening and closing.

[0004] Despite the use of conventional cylinder locks, it is also known that, in order to transmit high torque, a separate rotary handle for opening and closing the window lock may be provided in addition to the unlocking cylinder lock. However, such window locks have the disadvantage of increasing the complexity of operation and requiring a significantly larger installation space.

[0005] Against this backdrop, the present invention is based on the objective of proposing a lock, particularly a window lock, a key for such a lock, and a locking system that overcomes at least one or more of the drawbacks of the prior art described above.

[0006] The aforementioned object is solved by a lock, in particular a window lock, comprising a lock housing and a lock core rotatably assembled within the lock housing, wherein the lock core is formed at a first end accessible from the front of the lock for mounting a key, in particular a socket key, to transmit torque, and the lock has a restraining means for preventing rotation of the lock core within the lock housing between an open position and a closed position when the key is removed, wherein the restraining means is configured to allow (release) rotation of the lock core within the lock housing between an open position and a closed position when a key, in particular a socket key having a predetermined magnetic arrangement is assembled to the first end of the lock core.

[0007] Thus, a robust and compact lock, particularly a window lock, is provided, which, by assembling and rotating the key, preferably has a lock core capable of transmitting high or higher torque, and at the same time provides a certain basic security against opening and closing without a proper key.

[0008] In particular, the lock may be a window lock. In this example, the lock core preferably has a rotating tab at a second end. In particular, this rotating tab may be detachably connected to the lock core. In this case, the lock may preferably be used to transmit a high or higher torque to the rotating tab, for example, to lock the rotating tab to the back of the corresponding surface or to move it from its locked position on the back of the corresponding surface.

[0009] The lock may also be a rod lock, such as a door rod lock. In this case, the second end of the lock core is preferably connected to one or more rods so that the rotational motion of the lock core is converted into the pushing motion of one or more rods. For example, the second end of the lock core may support a gear that meshes with a corresponding section of the rod of the rod lock, such as a rack section.

[0010] The lock may also be an axial lock. In this case, the second end of the lock core may be provided with a contour that can be moved, for example, axially, and this contour may be moved into, for example, a corresponding contour provided on the frame for locking, and / or moved out of the contour for unlocking. Alternatively, the second end of the lock core may have a contour, for example, a screw or bayonet contour, which may be rotated into, for example, a corresponding contour provided on the frame for locking, and / or rotated out of the contour for unlocking. Combinations of these designs are also possible.

[0011] The lock may also be formed in the shape of a profile cylinder. For this purpose, the lock housing may, in particular, have the shape of a profile cylinder. This makes it possible to use the lock in place of conventional cylinder locks, such as plate cylinders, disc cylinders, or pin cylinders. In particular, this way the lock can be easily installed in a locking device for a profile cylinder. Such a lock in the form of a profile cylinder preferably has locking lugs that are non-rotatably connected to the lock core.

[0012] A magnetic unlocking function is provided by the fact that, when a key having a predetermined magnet arrangement is attached to the first end of the lock core, the prevention means is configured to allow rotation of the lock core within the lock housing between the open and closed positions, thereby allowing the key-side contour and the corresponding lock-side contour of the lock core to be geometrically and mechanically optimized, preferably for example, to transmit higher torque in a more robust design.

[0013] In contrast, conventional cylinder lock systems have a mechanically complex key shape and key passage that houses the key, in order to achieve a mechanical unlocking function. This means that only extremely low torque can be transmitted.

[0014] The lock core is formed at a first end accessible from the front of the lock for the purpose of mounting a key to transmit torque. In this way, the lock core can be actuated by proper key mounting when the locking mechanism allows the lock core to rotate.

[0015] Preferably, the first end of the lock core is configured in such a way that a suitable key can be fitted to the first end of the lock core in a shape-fit manner, thereby enabling torque transmission from the key to the lock core with respect to the rotation axis of the lock core. In this way, the lock core can be actuated by the key. Attaching the key may involve inserting a protruding portion of the key-side contour of the key, for example, a polygonal contour, into a corresponding recess provided at the first end of the lock core.

[0016] The anti-rotation means is designed to prevent the lock core from rotating within the lock housing between the open and closed positions when the key is removed. The anti-rotation means may be designed, for example, to prevent the lock core from rotating within the lock housing from the open position to the closed position when the key is removed. Additionally or alternatively, the anti-rotation means may be designed, for example, to prevent the lock core from rotating within the lock housing from the closed position to the open position when the key is removed. It is possible, but not necessarily, for the anti-rotation means to prevent any rotation of the lock core within the lock housing when the key is removed. In particular, for example, even when the key is removed, the lock core may be moved from an intermediate position between the open and closed positions to the open or closed position, and it is possible to design the anti-rotation means to engage only when it reaches the open and / or closed position.

[0017] The prevention means is designed to allow rotation of the lock core within the lock housing between the open and closed positions when a key having a predetermined magnetic arrangement is attached to the first end of the lock core. Therefore, the prevention means is configured to interact magnetically with the predetermined magnetic arrangement, and this magnetic interaction allows rotation of the lock core.

[0018] The lock is magnetically encoded by adapting the locking mechanism to a predetermined magnetic arrangement on the key. Therefore, operation of the lock requires the use of a suitable key having a specific magnetic arrangement, while operation of the lock with a key without a magnetic arrangement or with a magnetic arrangement different from the predetermined magnetic arrangement is limited to an intermediate position between the open and closed positions, or impossible at all. Thus, the predetermined magnetic arrangement determines the design of the lock. The magnetic arrangement itself is not part of the lock. However, because the lock's locking mechanism is specifically adapted to the predetermined magnetic arrangement, the mounting of a suitable key having this predetermined magnetic arrangement allows the locking mechanism to allow rotation of the lock core.

[0019] The aforementioned objectives are further solved, according to the present invention, by a key, preferably a socket key, for the lock or embodiment thereof described above. The key has a knob portion and a mounting portion, the knob portion and the mounting portion may be formed integrally. The mounting portion has a key-side contour, particularly a polygonal contour, for mounting to the lock, particularly to the lock core of the lock or embodiment thereof described above, to transmit torque. Furthermore, the key has a magnet arrangement portion provided on the mounting portion for magnetically interacting with the lock, particularly to the lock or embodiment thereof described above.

[0020] The key is a socket key, for example, a polygonal key. In particular, the key may have an outer contour and / or an inner contour, for example, a polygonal contour, which can be used to attach the key to a corresponding matching contour of the lock, particularly the inner contour and / or outer contour. An example of a socket key with an outer contour is a key with a square bar. An example of a socket key with an inner contour is a key with a square hole. It is also possible for the key to have both an outer and an inner contour.

[0021] Furthermore, the aforementioned objectives are solved according to the present invention by a lock system, particularly a window lock system, comprising the aforementioned lock or embodiment thereof and a key that matches this lock, in particular the aforementioned key or embodiment thereof.

[0022] The key to the lock system is a key that matches the lock of the lock system. For this purpose, the key and the lock are adapted to each other, in particular, the lock core is formed for the purpose of mounting the key so as to transmit torque at a first end, and the locking mechanism of the window lock is configured to allow rotation of the lock core within the lock housing between the open and closed positions when the key is mounted on the first end of the lock core. In particular, the magnetic arrangement portion of the key is a predetermined magnetic arrangement portion, and with respect to this magnetic arrangement portion, the locking mechanism is configured to allow rotation of the lock core within the lock housing between the open and closed positions when a key having this predetermined magnetic arrangement portion is mounted on the first end of the lock core.

[0023] Various embodiments of locks, keys, and locking systems are described below, but each embodiment can be applied independently to a lock, key, and locking system. Furthermore, the individual embodiments may be combined with each other as needed.

[0024] In one embodiment, the lock core has a lock-side contour, particularly a polygonal contour, at a first end for mounting a key, preferably a socket key, and especially a polygonal key, to transmit torque. This type of lock-side contour allows for the transmission of high or higher torque when a socket key having a corresponding key-side contour is mounted. Furthermore, such a lock-side contour for a socket key is extremely robust, especially in unfavorable environmental conditions, such as dusty environments, compared to the key passages of conventional cylinder lock systems. In particular, the lock-side contour may have one or more recesses and / or one or more protrusions.

[0025] The tablet-side contour portion of the tablet core is intended to attach a socket key so as to transmit torque. Therefore, the tablet-side contour portion is designed to form a shape fit with the key-side contour portion for torque transmission, particularly when the assigned key is attached.

[0026] The tablet-side contour portion may have, for example, a recess for accommodating a corresponding convex portion, such as a polygonal convex portion, of the key-side contour portion of the assigned key, such as a polygonal recess. Further, the tablet-side contour portion may have, for example, a convex portion, such as a polygonal convex portion, for accommodating within a corresponding recess, such as a polygonal recess, of the key-side contour portion of the assigned key.

[0027] The tablet core may have a contour portion having a tablet-side contour portion, particularly an outer contour portion, and this contour portion may, for example, project laterally beyond the tablet housing at a first end. Therefore, the key may have a key-side contour portion adapted to the tablet-side contour portion, particularly an inner contour portion.

[0028] Preferably, the contour portion is flat and is defined at its edge by the outer contour portion forming the tablet-side contour portion. This enables a very flat design of the tablet-side contour portion. Thus, for example, it is possible to prevent a user from catching on the protruding portion of the tablet-side contour portion. Also, thus, there are fewer points of action for tampering.

[0029] Therefore, the key may preferably have, for example, an inner contour portion defining a flat region where a magnet arrangement or one or more of its magnets may be arranged. Thus, it is possible to provide a robust key having a flat design.

[0030] The tablet-side contour portion, such as the outer contour portion, and / or the key-side contour portion, such as the inner contour portion, may be rounded, for example, preferably in an elliptical shape. Thereby, the rounded shape of the tablet-side contour portion provides few points of action for foreign tools, such as pliers, and thus the anti-tampering property of the tablet is improved.

[0031] The ingot side contour portion and / or the key side contour portion are preferably asymmetric, so that the ingot side contour portion allows a key having a corresponding key side contour portion to be attached in only one orientation.

[0032] In one embodiment, each predetermined magnet arrangement portion comprises a predetermined number of magnets having respective predetermined positions. In a further embodiment, each predetermined magnet arrangement portion comprises a predetermined number of magnets having respective predetermined positions and a predetermined magnetic pole orientation. Preferably, each magnet arrangement portion comprises two or more magnets having respective predetermined positions and optionally a predetermined magnetic pole orientation. More preferably, at least two magnets of the magnet arrangement portion have different magnetic pole orientations, preferably magnetic pole orientations that are antiparallel to each other. Further, two magnets of the magnet arrangement portion may have respective magnetic pole orientations that are aligned at a predetermined angle to each other, for example at a right angle. In a corresponding embodiment of the key, the magnet arrangement portion comprises one or more magnets arranged at respective positions, preferably at least two magnets having different magnetic pole orientations, particularly preferably magnetic pole orientations that are aligned antiparallel to each other.

[0033] The security of the ingot against improper operation can be improved by specifying a specific number of magnets having respective predetermined positions and optionally a predetermined magnetic pole orientation for each magnet arrangement portion. Thus, in particular, various different magnet arrangement portions can be realized for keys having the same geometric shape, whereby the keys can be magnetically encoded with respect to the assigned ingots, so that the key can unlock the assigned ingot rather than an ingot requiring a differently magnetically encoded key.

[0034] In one embodiment, the prevention means comprises a prevention element, which is assembled to be displaceable between a prevention position in which the prevention element prevents rotation of the lock core within the lock housing between an open position and a closed position, and a tolerance position in which the prevention element allows rotation of the lock core within the lock housing between an open position and a closed position. Thus, rotation of the lock core can be easily and reliably prevented or allowed as needed. Preferably, the prevention element is designed to interact with the lock housing and the lock core in a shape-fitting manner in the closed position, thus preventing rotation of the lock core within the lock housing.

[0035] Preferably, the prevention means comprises a plurality of prevention elements, which are assembled to be displaceable between each prevention position that prevents the lock core from rotating within the lock housing between an open position and a closed position, and each allowable position that permits the rotation of the lock core within the lock housing between an open position and a closed position.

[0036] One or more prevention elements may be assembled to be displaceable, for example, in the axial and / or radial directions with respect to the rotation axis of the lock core.

[0037] Preferably, the lock mechanism is provided with one or more anti-tampering elements that are displaceable in the axial direction and one or more anti-tampering elements that are displaceable in the radial direction. In this way, good vibration resistance of the lock mechanism and improved security against tampering are achieved.

[0038] In one embodiment, the lock core has a housing into which the protective element is displaceably assembled. In the case of multiple protective elements, the lock core preferably has multiple housings into which each protective element is displaceably assembled. Thus, a particularly compact design of the lock can be achieved. The housings may be formed, for example, by blind holes or through holes provided in the lock core, or by circumferential housings formed at least partially by the lock core.

[0039] In further embodiments, the lock housing has a housing into which the protective elements are displaceably assembled. In the case of multiple protective elements, the lock housing preferably has multiple housings into which each protective element is displaceably assembled. Thus, a particularly robust design of the lock can be achieved.

[0040] Furthermore, the locking element may be displaceably assembled within a housing formed by both the lock core and the lock housing. This is possible, for example, for a locking element consisting of multiple members.

[0041] If one or more housings are located in the lock housing, preferably, one or more assigned recesses are provided in the lock core to allow a retaining element to slide into the retaining position, thereby preventing rotational movement between the lock core and the lock housing.

[0042] In one embodiment, the prevention means comprises a plurality of prevention elements, each of which is assembled within a housing provided in the lock housing and / or lock core, the housing being positioned to surround the rotation axis of the lock core, and the prevention elements engaging in the respective assigned recesses provided in the lock core and / or lock housing in the prevention position. Preferably, at least two, preferably all, of the housings and / or assigned recesses positioned to surround the rotation axis of the lock core are at different distances from the rotation axis of the lock core. This makes it possible to prevent a prevention element positioned within a given housing from engaging with a recess other than the one assigned to the housing, and from hindering the rotational movement between the lock core and the lock housing when the lock core is rotated.

[0043] The preventive means, particularly one or more preventive elements, are preferably positioned at a predetermined distance from the lock-side contour, preferably so that the preventive means, particularly one or more preventive elements, do not directly contact the key when the key is attached to the first end of the lock core. Preferably, one or more housings and / or assigned recesses are spaced apart from the lock-side contour.

[0044] In one configuration, the lock has a retaining element, which prevents a locking element from being removed when the key is removed. prevention It is configured to be held in place by a magnetic interaction, particularly between the retaining element and the preventing element. This improves the vibration resistance of the lock, so that even if mechanical vibration or shaking occurs when the key is removed, the preventing element will not be held in place. prevention The lock is securely held in place and therefore prevented from opening or closing when the key is removed. In the case of multiple prevention elements, the retaining element preferably holds the multiple prevention elements when the key is removed. prevention The position may be designed to be held by a magnetic interaction between the retaining element and the preventing element.

[0045] The magnetic interaction between the retaining element and one or more preventing elements is preferably a magnetically attractive interaction. However, the magnetic interaction between the retaining element and one or more preventing elements can also be a magnetically repulsive interaction.

[0046] For example, the preventing element may be a magnet or may be equipped with a magnet, the holding element may be a magnet or may consist of a ferromagnetic material in the form of a ferromagnetic metal plate, such as a steel plate, or a ferromagnetic pin, such as a steel pin.

[0047] In one embodiment, the locking element is configured to be moved to an acceptable position when a key having a predetermined magnet arrangement is attached to the first end of the lock core, that is, to be moved to an acceptable position by magnetic interaction, particularly magnetic repulsion, between the locking element and the magnet arrangement. In the case of multiple locking elements, the locking element is preferably configured to be moved to an acceptable position when a key having a predetermined magnet arrangement is attached to the first end of the lock core, that is, to be moved to an acceptable position by magnetic interaction, particularly magnetic repulsion, between the locking element and the magnet arrangement. Unlocking by magnetic repulsion between the magnet arrangement and one or more locking elements enables a reliable and smooth unlocking mechanism.

[0048] Preferably, the magnet arrangement section has magnets assigned to each prevention element, and more preferably, each assigned magnet.

[0049] In one embodiment, the locking element is a magnet or comprises a magnet. In the case of multiple locking elements, at least one, preferably multiple, of these locking elements is a magnet or comprises a magnet. Thus, the locking element is engaged by magnetic attraction with a retaining element provided, for example, when the key is removed. prevention It can be held in place. Furthermore, the prevention element can thus be moved to an acceptable position by magnetically repulsive interaction with the magnet in the magnet arrangement portion of the key, for example, when the key is attached to the first end of the lock core.

[0050] In particular, the anti-rotation element may include a magnet and a sleeve surrounding the magnet, especially a metal sleeve. In this way, greater shear force resistance of the anti-rotation element is achieved when preventing the rotation of the lock core within the lock housing, thereby improving the durability of the lock.

[0051] In particular, the prevention element may have a design consisting of multiple components, for example, a magnet and a steel pin magnetically connected to the magnet, thereby preventing the rotation of the lock core within the lock housing when the steel pin is in the prevention position. Prevention This causes [something]. In this way, the durability of the lock can also be improved.

[0052] In one embodiment, the lock has a contact surface for contacting a predetermined magnet arrangement, and the retaining means is arranged and configured such that the retaining means allows rotation of the lock core within the lock housing between the open and closed positions when the predetermined magnet arrangement is in contact with the contact surface arrangement, particularly in a predetermined orientation. This makes the lock easier to handle because the user can confirm that the key is properly attached to the lock by contact with the contact surface arrangement. Furthermore, by arranging the magnet arrangement relative to the contact surface arrangement, the distance between the magnet arrangement and the retaining means can be kept as small as possible, thereby increasing the magnetic interaction between the magnet arrangement and the retaining means.

[0053] In particular, the contact surface arrangement portion may have one or more contact surfaces provided for contacting one or more magnets of the magnet arrangement portion. The contact surface arrangement portion is arranged such that the magnet arrangement portion contacts the contact surface arrangement portion when the key is assembled. One or more contact surfaces of the contact surface arrangement portion may be located in particular at the first end of the lock core and / or in the lock housing.

[0054] If the prevention means includes one or more prevention elements, these prevention elements are preferably positioned within the range of one or more contact surfaces of the contact surface arrangement portion, thereby creating a magnetic interaction between the magnet arrangement portion and the prevention element that moves the prevention element to an acceptable position when the magnet arrangement portion is in contact with it.

[0055] In one embodiment, the contact surface arrangement is positioned completely or at least partially separately from the lock-side contour, for example, offset radially outward or inward with respect to the rotation axis of the lock core. In a corresponding embodiment of the key, the magnet arrangement is positioned completely or at least partially outside the key-side contour. In this way, the unlocking function can be structurally separated from the torque transmission function, thereby achieving a more robust design for the lock and key.

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

[0057] In one embodiment, the lock core is formed of multiple parts, having a core portion located within an inner passage of the lock housing and a contour portion having a lock-side contour, the core portion and the contour portion being connected to each other so as not to rotate relative to each other. For this purpose, the core portion and the contour portion may have corresponding contour portions that engage with each other in a shape-fitting manner, for example. The core portion and the contour portion may be held together by pins or screws, for example, screws extending through the core portion and screwed into the inner contour portion of the contour portion.

[0058] By designing the lock core with multiple parts, particularly a design having a core part and a contour part, it becomes possible to provide the lock with a desired lock-side contour by, for example, selecting an appropriate contour part from a variety of contour parts as needed.

[0059] In one embodiment, the key has a thickness of at least 4 mm. Preferably, the key-side contour of the key has a thickness of at least 4 mm. Thus, the key allows for higher torque transmission. Preferably, the lock-side contour is appropriately designed to accommodate the key-side contour having a thickness of at least 4 mm.

[0060] The key is preferably formed, at least partially, from a metal that allows for high torque transmission. The thumb portion of the key preferably extends laterally at least 2 cm, more preferably at least 3 cm, and particularly preferably at least 4 cm relative to the axis of rotation of the key, with the intention of acting the key. This makes it easier for the user to transmit higher torque to the key, and, if the key is assembled to the lock core of a lock, to the lock core.

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

[0062] [Figure 1A] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1B] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1C] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1D] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1E] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1F] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 1G] This figure shows a first exemplary embodiment of a lock, key, and locking system. [Figure 2A] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2B] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2C] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2D]This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2E] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2F] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 2G] This figure shows a second exemplary embodiment of a lock, key, and locking system. [Figure 3A] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3B] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3C] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3D] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3E] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3F] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3G] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3H] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3I] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3J] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3K] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 3L] This figure shows a third exemplary embodiment of a lock, key, and locking system. [Figure 4A] This figure shows a fourth exemplary embodiment of a lock, key, and locking system. [Figure 4B] This figure shows a fourth exemplary embodiment of a lock, key, and locking system. [Figure 4C] This figure shows a fourth exemplary embodiment of a lock, key, and locking system. [Figure 4D] This figure shows a fourth exemplary embodiment of a lock, key, and locking system. [Figure 4E] This figure shows a fourth exemplary embodiment of a lock, key, and locking system. [Figure 5A] This figure shows a fifth exemplary embodiment of a lock, key, and locking system. [Figure 5B] This figure shows a fifth exemplary embodiment of a lock, key, and locking system. [Figure 5C] This figure shows a fifth exemplary embodiment of a lock, key, and locking system. [Figure 5D] This figure shows a fifth exemplary embodiment of a lock, key, and locking system. [Figure 5E] This figure shows a fifth exemplary embodiment of a lock, key, and locking system.

[0063] Figures 1A to 1G show a first exemplary embodiment of the lock, key, and locking system. Figure 1A shows a perspective view of key 2 from diagonally above. Figure 1B shows a partial perspective view of key 2 from diagonally below. Figure 1C shows the lock 20 in perspective views from diagonally above and diagonally from the front, respectively. Figure 1D shows the lock 20 with key 2 installed in it in perspective views from diagonally above and diagonally from the front, respectively. Figures 1E and 1F show cross-sectional views of the lock 20 and key 2, i.e., a cross-sectional view before key 2 is installed in the lock 20 (Figure 1E) and a cross-sectional view after it is installed (Figure 1F). Figure 1G shows a side view of the lock 20 with key 2 installed in its installed state.

[0064] Key 2 and lock 20 together form a locking system 80.

[0065] In this example, lock 20 is designed as a window lock, and therefore lock system 80 is designed as a window lock system. Alternatively, lock 20 may be designed as a rod lock or an axial lock, and accordingly, lock system 80 may be designed as a rod lock system or an axial lock system.

[0066] Key 2, in this example, is a socket key comprising a knob portion 4 and a mounting portion 6 formed as a single unit. The mounting portion has a key-side contour portion 8, which in this example is designed as a polygonal contour portion, i.e., a quadrilateral convex portion. However, other key-side contour portions 8 are also possible. The mounting portion 6 of the key has a flange portion 10 surrounding the key-side contour portion 8, which has a magnet arrangement portion 12, and the magnet arrangement portion 12 comprises a number of magnets 14 having predetermined positions and predetermined magnetic pole orientations. The magnetic pole orientation of each magnet is denoted by the symbols "N" or "S" in Figure 1B, so that the side denoted by the symbol "N" in Figure 1B corresponds to the magnetic north pole, and the side denoted by the symbol "S" in Figure 1B corresponds to the magnetic south pole. In Figures 1E and 1F, the orientation of the magnetic poles of the magnets shown in both figures is also marked with "N" and "S," where "N" indicates the arrangement of the magnetic north pole of each magnet, and "S" indicates the arrangement of the magnetic south pole of each magnet. As can be seen in Figures 1E and 1F, the magnets 14 marked with the symbols "N" and "S" have magnetic poles that are opposite to each other.

[0067] The window lock 20 has a lock housing 22 having an internal passage 24 in which a lock core 26 is assembled so as to be rotatable about axis A. The lock housing 22 has a flange 30 on the front side 28 of the window lock 20, and a housing body 32 having male threads 34 extends from this flange 30.

[0068] For assembly, first, the window lock 20 is inserted into the opening 90 of the thin sheet metal door 92 by the housing body 32, and the flange portion 30 may be brought into contact with the sheet metal door 92. Next, the nut 36 is screwed onto the male thread 34 from the back, thereby fixing the window lock 20 to the sheet metal door 92.

[0069] The lock core 26 is formed at a first end 38 accessible from the front 28 for the purpose of assembling the key 2 to transmit torque. For this purpose, the lock core 26 has a lock-side contour 40 at its first end 38 that corresponds to the key-side contour 8, and this lock-side contour 40 is designed in this example as a polygonal contour, i.e., a rectangular recess for accommodating the key-side contour 8, which is designed as a rectangular convex portion.

[0070] At the second end 42 of the lock core 26 opposite the first end 38, the lock core 26 supports a rotating tab 44, which is connected to the lock core 26 so as not to rotate relative to it via corresponding contours 46, 48 provided on the lock core 26 and the rotating tab 44, and is secured by a screw 50. By assembling and rotating the key 2, the lock core 26 and thus the rotating tab 44 can be rotated between an open position and a closed position. Figure 1G shows the closed position in the installed state, where the rotating tab 44 is engaged with the back of the protective surface 94 of the frame 96 surrounding the sheet metal door 92, thus locking the sheet metal door 92. For example, when the lock core 26 is rotated by 90°, the lock core 26 or the rotating tab 44 moves to an open position, where the rotating tab 44 is no longer engaged with the back of the protective surface 94, thereby allowing the sheet metal door 92 to be opened.

[0071] The window lock 20 further includes a retaining mechanism 52 for preventing the lock core 26 from rotating within the lock housing 22 between the open and closed positions when the key 2 is removed. In the example shown in Figures 1A to 1G, the retaining mechanism 52 comprises a plurality of retaining elements 54 displaceably assembled within housings 56 on each edge of the lock core 26. These retaining elements 54 may be displaced within their respective housings 56 between a retaining position (see Figure 1E) and a permissible position (see Figure 1F). In the retaining position (Figure 1E), the retaining elements 54 engage with the recesses 58 of the molded elements 60 attached to the lock housing 22, thereby preventing the lock core 26 from rotating within the lock housing 22 between the open and closed positions in a shape-fitting manner. In the permissible position (Figure 1F), the retaining element 54 is retracted into the housing 56 and is not engaged with the recess 58, thereby allowing the retaining element 54 to rotate within the lock housing 22 between the open and closed positions in the permissible position.

[0072] The prevention means 52 is configured to allow rotation of the lock core 26 within the lock housing 22 between the open and closed positions when the key 2 having the magnet arrangement portion 12 is assembled to the first end 38 of the lock core 26. This is because, in the window lock 20, the prevention elements 54 are designed as magnets, and the number, position and orientation of the magnetic poles of the magnet arrangement portion 12 of the key 2 correspond to the number, position and orientation of the magnetic poles of the prevention elements 54. Thus, when the key 2 is assembled, the magnets 14 of the magnet arrangement portion 12 and each prevention element 54 having the same magnetic poles face each other, and this is achieved by a magnetic repulsive force acting on the prevention elements 54 that moves them from their respective recesses 58 to the permitted position.

[0073] Thus, the window lock 20 can be unlocked by a matching key 2 having a predetermined magnetic arrangement, whereas keys of the same type having various different magnetic arrangements with respect to the key-side contour 8 will not unlock the window lock 20. Therefore, the window lock 20 and the key 2 are magnetically encoded through the number, position and orientation of the magnets 14 of the magnetic arrangement 12 and the corresponding number, position and orientation of the magnetic poles of the prevention element 54.

[0074] To hold the prevention element 54 in the prevention position when the key 2 is removed, the lock housing 22 is provided with a retaining element 62 in the form of a ferromagnetic thin plate, such as a thin steel plate, having a central opening 63 relative to the lock-side contour 40. The prevention element 54 is held in place within the recess 58 by magnetic attraction between the prevention element 54 and the retaining element 62. The strength of the magnet 14 and the strength of the prevention element 54, which is designed as a magnet, are adapted so that when the key 2 is assembled, the magnetic attractive force between the prevention element 54 and the retaining element 62 is resolved by the magnetic repulsive force between the magnet 14 and the prevention element 54, causing the prevention element 54 to move to an acceptable position.

[0075] To increase the durability of the window lock 20, in one possible embodiment, magnets surrounded by steel sleeves may be used as the anti-locking elements 54.

[0076] In this example, a marking 66 is provided on the annular end face 64 of the lock housing 22 formed by one side of the retaining element 62. This marking 66 corresponds to a marking 16 on the key 2, which indicates to the user the correct orientation of the key 2 relative to the window lock 20 with respect to the correct orientation of the magnet placement portion 12 relative to the prevention element 54.

[0077] In the window lock 20, the end face 64 simultaneously forms the contact surface 67 of the contact surface arrangement portion 68 of the window lock 20, and this contact surface 67 is provided to contact the magnet arrangement portion 12 in the orientation specified by the markings 16 and 66. The contact surface 67 is positioned separately from the lock-side contour portion 40, that is, radially outward of the lock-side contour portion 40 with respect to the rotation axis A. Accordingly, the prevention element 54 is also positioned separately from the lock-side contour portion 40, that is, within the range of the contact surface 67.

[0078] Thus, when the magnet arrangement portion 12 is in contact with the contact surface 67, the unlocking function generated by the magnetic interaction between the magnet arrangement portion 12 and the locking element 54 is spatially separated by design from the torque transmission function generated by the shape-fitting interaction between the key-side contour portion 8 and the lock-side contour portion 40. As a result, the lock-side contour portion 40 and the key-side contour portion 8 can be optimized for torque transmission, and can be designed to be particularly robust, without the need to directly incorporate movable or elaborate components, such as magnets and locking elements, into the lock-side contour portion 40 and the key-side contour portion 8.

[0079] Figures 2A to 2G show a second exemplary embodiment of the lock, key, and locking system. Figure 2A shows the key 102 and lock 120 in a perspective view. Figure 2B shows the key 102 and lock 120 in a partially cut perspective view corresponding to the cross-sectional plane labeled "IIc" in Figure 2E. Figures 2C and 2D show the key 102 and lock 120 in cross-sectional views of the cross-sectional plane labeled "IIc" in Figure 2E, i.e., a cross-sectional view before the key 102 is assembled (Figure 2C) and a cross-sectional view after the key 102 is assembled (Figure 2D). Figure 2E shows a cross-sectional view corresponding to the cross-sectional plane labeled "IIe" in Figure 2C. Figure 2F shows a cross-sectional view corresponding to the cross-sectional plane labeled "IIf" in Figure 2D. Figure 2G shows a cross-sectional view corresponding to Figure 2F, after rotating the lock core by 45°.

[0080] Key 102 and lock 120 together form a locking system 180.

[0081] In this example, the lock 120 is designed as a window lock, and therefore the lock system 180 is designed as a window lock system. Alternatively, the lock 120 may be designed as, for example, a rod lock or an axial lock, and accordingly, the lock system 180 may be designed as a rod lock system or an axial lock system.

[0082] In this example, key 102 is also a socket key, comprising a knob portion 104 and a mounting portion 106 formed as a single unit. The mounting portion 106 has a key-side contour portion 108, which in this example is formed as a polygonal contour, i.e., a cross-shaped protrusion. However, other key-side contour portions 108 are also possible. In key 102, a magnet arrangement portion 112, which has multiple magnets 114, is arranged on the key-side contour portion 108. The magnets 114 are inserted into four radially blind holes 109 of the key-side contour portion 108. The magnets 114 have predetermined magnetic pole orientations, some of which are shown in the drawings as "N" (magnetic north pole) and "S" (magnetic south pole).

[0083] The window lock 120 has a lock housing 122 having an internal passage 124 in which a lock core 126 is assembled to be rotatable about axis B. The lock housing 122 has a flange 130 on the front side 128 of the window lock 120, and a housing body 132 having male threads 134 extends from this flange 130. The assembly of the window lock 120 may be carried out as described for the window lock 20.

[0084] The lock core 126 is formed at a first end 138 accessible from the front end 128 for the purpose of assembling the key 102 to transmit torque. For this purpose, the lock core 126 has a lock-side contour 140 at its first end 138 that corresponds to the key-side contour 108, and this lock-side contour 140 is formed as a cross-shaped recess for accommodating the key-side contour 108, which is formed as a cross-shaped protrusion in this example.

[0085] At the second end 142 of the lock core 126 opposite the first end 138, the lock core 126 supports a rotating tab 144, which is non-rotatably connected to the lock core 126 via corresponding contours 146, 148 provided on the lock core 126 and the rotating tab 144, and is secured by a screw 150. When the key 102 is assembled, rotating the lock core 126 and, consequently the rotating tab 144, between the open and closed positions is done in the same manner as described above for the window lock 20.

[0086] The window lock 120 further includes a preventative means 152 for preventing the lock core 126 from rotating within the lock housing 122 between the open and closed positions when the key 102 is removed. In the example shown in Figures 2A to 2G, the preventative means 152 has a plurality of preventative elements 154 assembled to be radially displaceable with respect to the axis of rotation B within a housing 156 formed by the lock housing 122 and the lock core 126. Thus, the housing 156 comprises a first portion 156a formed by the lock housing 122 and a second portion 156b formed by the lock core 126. In the lock 120, each preventative element 154 is formed of two members, each comprising a steel pin 154a and a magnet 154b, the steel pin 154a and the magnet 154b being held together by their mutual magnetic force.

[0087] The prevention element 154 may be displaced within each housing 156 between a prevention position (see Figures 2C and 2E) and an allowable position (see Figures 2D and 2F). In the prevention position (Figures 2C and 2E), the prevention element 154 is positioned such that each steel pin 154a is located within both the first portion 156a and the second portion 156b of each housing 156, thereby preventing the rotation of the lock core 126 within the lock housing 122 between the open and closed positions in a shape-fitting manner. In the permissible position (Figures 2D and 2F), the retaining element 154 is configured such that the steel pin 154a is located only within the first portion 156a of the housing 156, and the magnet 154b is located only within the second portion 156b of the housing 156. This configuration allows the retaining element 154 to rotate the lock core 126 within the lock housing 122 between the open and closed positions, and the lock core 126 is configured to rotate as shown in Figure 2G by the separation of each of the steel pins 154a from the magnet 154b.

[0088] The prevention means 152 is configured to allow rotation of the lock core 126 within the lock housing 122 between the open and closed positions when the key 102 having the magnet arrangement portion 112 is assembled to the first end 138 of the lock core 126. In the window lock 120, the number, position and orientation of the magnetic poles of the magnets 114 of the magnet arrangement portion 112 of the key 102 correspond to the number, position and orientation of the magnetic poles of the magnets 154b of the prevention element 154. As a result, when the key 102 is assembled, each magnet 114 of the magnet arrangement portion 112 and each magnet 154b of the prevention element 154 face each other with the same magnetic pole. This is achieved by a magnetic repulsive force acting on the magnets 154b that moves the magnets 154b in the housing portion 156 and, consequently, each steel pin 154a, to the permissible position.

[0089] Thus, the window lock 120 can be unlocked by a matching key 102 having a predetermined magnetic arrangement, whereas the window lock 120 cannot be unlocked by the same type of key having various different magnetic arrangements with respect to the key-side contour portion 108. Therefore, the window lock 120 and the key 102 are magnetically encoded through the number, position, and orientation of the magnetic poles of the magnets 114 in the magnetic arrangement portion 112 and the corresponding number, position, and orientation of the magnetic poles of the magnets 154b in the prevention element 154.

[0090] To hold the lock element 154 in the locked position when the key 102 is removed, the lock core 126 is provided with a retaining element 162 in the form of a ferromagnetic element, such as a steel element. The magnetic attraction between the magnet 154b of the lock element 154 and the retaining element 162 holds the magnet 154b and, consequently, the lock element 154 as a whole in the locked position. The strength of the magnet 114 and the strength of the magnet 154b of the lock element 154 are adapted so that when the key 102 is assembled, the magnetic attractive force between the magnet 154b and the retaining element 162 is offset by the magnetic repulsive force between the magnet 114 and the magnet 154b, causing the lock element 154 to move to the allowed position.

[0091] In this example, the lock-side contour 140 and the key-side contour 108 are asymmetrical. This ensures that when inserting the key 102, the key-side contour 108 can only be inserted into the lock-side contour 140 in a predetermined orientation that guarantees proper alignment of the magnet placement portion 112 with respect to the magnet 154b of the prevention element 154.

[0092] The four sides of the lock-side contour 140 form the contact surface 167 of the contact surface arrangement portion 168 of the window door lock 20 in the window door lock 120, and this contact surface 167 is provided to contact the magnet arrangement portion 112 in an orientation specified by the asymmetrical shape of the lock-side contour 140 and the key-side contour 108. The contact surface 167 is positioned on the lock-side contour 140 of the window door lock 120. Accordingly, the prevention element 154 is also positioned on the lock-side contour 140, that is, within the range of the contact surface 167.

[0093] In this way, the security of the window lock 120 against unauthorized operation is enhanced. This is because easy access to the contact surface 167 from the outside becomes impossible, and consequently, the operation of the window lock 120 without the proper key due to the installation of the magnet becomes more difficult.

[0094] Figures 3A to 3L show a third exemplary embodiment of the lock, key, and locking system. Figures 3A and 3B show the key 202 in a perspective view from diagonally above (Figure 3A) and diagonally below (Figure 3B). Figure 3C shows the lock 220 in a perspective view from diagonally above and diagonally from diagonally in front, respectively, in which several parts are shown transparently with dashed lines for clarity. Figure 3D shows side views of the key 202 and lock 220. Figure 3E shows a top view of lock 220. Figures 3F and 3G show partially broken perspective views corresponding to the cross-sectional plane labeled "IIIf" in Figure 3E, i.e., a perspective view before the key 202 is assembled (Figure 3F) and a perspective view after the key 202 is assembled (Figure 3G). Furthermore, Figure 3F shows an enlarged detailed cross-sectional view in the direction of sight indicated by the dotted circle labeled "X" in the perspective view. Figures 3H and 3I show cross-sectional views corresponding to the cross-sectional plane labeled "IIIh" in Figure 3E, i.e., the cross-sectional view before the key 202 is assembled (Figure 3H) and the cross-sectional view after the key 202 is assembled (Figure 3I). Figures 3J, 3K, and 3L show cross-sectional views corresponding to the cross-sectional plane labeled "IIIj" in Figure 3D, i.e., the cross-sectional view before the key 202 is assembled (Figure 3J), the cross-sectional view after the key 202 is assembled (Figure 3K), and the cross-sectional view after the lock core 226 has been rotated by 45° by the assembled key 202 (Figure 3L).

[0095] Key 202 and lock 220 together form a locking system 280.

[0096] In this example, the lock 220 is designed as a window lock, and accordingly, the lock system 280 is designed as a window lock system. Alternatively, the lock 220 may be designed as, for example, a rod lock or an axial lock, and accordingly, the lock system 280 may be designed as a rod lock system or an axial lock system.

[0097] In this example, the key 202 is a socket key comprising a knob portion 204 and a mounting portion 206 formed as a single unit. The mounting portion 206 has a key-side contour portion 208, which in this example comprises four annular segment-shaped protrusions 209. However, other key-side contour portions 208 are also possible. The mounting portion 206 of the key has a magnet arrangement portion 212 comprising a number of magnets 214, 215, each having a predetermined position and a predetermined magnetic pole orientation. Some of the magnets 214 of this magnet arrangement portion 212 are positioned on a surface 210 of the socket portion 206, which is recessed relative to the annular segment-shaped protrusions 209 and is located between these annular segment-shaped protrusions 209. Other magnets 215 of the magnet arrangement portion 212 are positioned on a central surface 211 that is recessed relative to surface 210.

[0098] The orientation of the magnetic poles of individual magnets 214 and 215 is partially marked in the drawing with "N" (magnetic north pole) and "S" (magnetic south pole).

[0099] The window lock 220 has a lock housing 222 (shown partially as a dashed line in Figure 3C for illustrative purposes) which has an internal passage 224 into which a lock core 226 is assembled so as to be rotatable about axis C. The lock housing 222 has a flange 230 on the front side 228 of the window lock 220, and a housing body 232 with male threads 234 extends from this flange 230. The assembly of the window lock 220 may be carried out in the same manner as described for the window lock 20.

[0100] The lock core 226 is formed at a first end 238 accessible from the front end 228 for the purpose of assembling the key 202 to transmit torque. For this purpose, the lock core 226 has a lock-side contour 240 at its first end 238 that corresponds to a key-side contour 208, and in this example, the lock-side contour 240 is formed in the form of four recesses 241 corresponding to annular segment-shaped protrusions 209.

[0101] At the second end 242 of the lock core 226 opposite the first end 238, the lock core 226 supports a rotating tongue 244, which is connected to the lock core 226 so as not to rotate relative to it via corresponding contours 246, 248 provided on the lock core 226 and the rotating tongue 244, and is secured by screws 250. When the key 202 is assembled, rotating the lock core 226 and, consequently the rotating tongue 244, between the open and closed positions is performed in the same manner as described above for the window lock 20.

[0102] The window lock 220 also includes a preventative means 252 that prevents the lock core 226 from rotating within the lock housing 222 between the open and closed positions when the key 202 is removed. In the example shown in Figures 3A to 3L, this preventative means 252 includes an axial preventative element 254 for locking in the axial direction and a radial preventative element 255 for locking in the radial direction.

[0103] The axial locking element 254 is formed of two members, each comprising a steel pin 254a and a magnet 254b. The axial locking element 254 is assembled to be displaceable in the axial direction within a housing 256 formed by the lock core 226 and the lock housing 222. Thus, the housing 256 comprises a first portion 256a formed by the lock housing 222 and a second portion 256b formed by the lock core 226.

[0104] The prevention element 254 may be displaced between a prevention position (see Figure 3H) and a tolerance position (see Figure 3I) within each housing 256. In the prevention position (Figure 3H), the prevention element 254 is positioned such that each steel pin 254a is located within both the first portion 256a and the second portion 256b of each housing 256, thereby preventing the rotation of the lock core 226 within the lock housing 222 between the open and closed positions in a shape-fitting manner. In the permissible position (Figure 3I), the retaining element 254 is such that the steel pin 254a is positioned only within the first portion 256a of the housing 256, and the magnet 254b is positioned only within the second portion 256b of the housing 256. This allows the retaining element 254 to allow the lock core 226 to rotate within the lock housing 222 between the open and closed positions in the permissible position. The radial retaining element 255 is also positioned such that, when in the permissible position, the lock core 226 can rotate due to the separation of each of the steel pins 254a from the magnet 254b.

[0105] The radial prevention element 255 also has a design consisting of multiple members, comprising a steel pin 255a, a magnet 255b, and two slides 255c and 255d, which are arranged within a housing 257 of the lock core 226. This housing has a central axial portion 257a in which the steel pin 255a and magnet 255b are assembled to be displaceable in the axial direction, and a radial portion 257b in which the slides 255c and 255d are assembled to be displaceable in the radial direction. The slides 255c and 255d may be displaced within the radial portion 257b of the housing 257 between their respective prevention positions (see Figure 3F) and allowable positions (see Figure 3G). In the prevention position (Figure 3F), the slides 255c and 255d of the prevention element 255 are engaged with the respective radial recesses 259 provided in the lock housing 222, thereby preventing the rotation of the lock core 226 within the lock housing 222 between the open and closed positions through a shape-fit mechanism. In the allowable position (Figure 3G), the slides 255c and 255d of the prevention element 255 are retracted into the housing 257 and are not engaged with the recesses 259. As a result, in this allowable position, the prevention element 255 allows the rotation of the lock core 226 within the lock housing 222 between the open and closed positions.

[0106] The prevention means 252 is configured to allow rotation of the lock core 226 within the lock housing 222 between the open position and the closed position when the key 202 having the magnet arrangement portion 212 is assembled to the first end 238 of the lock core 226.

[0107] With respect to the axially oriented locking element 254, in the window lock 220, the number, position, and orientation of the magnetic poles of the magnets 214 in the magnet arrangement section 212 of the key 202 correspond to the number, position, and orientation of the magnetic poles of the magnets 254b of the axially oriented locking element 254. As a result, when the key 202 is assembled, each magnet 214 of the magnet arrangement section 212 and each magnet 254b of the axially oriented locking element 254, which have the same magnetic poles, face each other. This is achieved by a magnetic repulsive force acting on the magnets 254b and, consequently, on each of the locking elements 254, thereby moving the locking element 254 to an acceptable position.

[0108] With respect to the radial locking element 255, unlocking is achieved by the window lock 220, where the position and orientation of the magnetic poles of magnet 215 correspond to the position and orientation of the magnetic poles of magnet 255b. Thus, when the key 202 is assembled, magnet 215 and magnet 255b of the magnet arrangement section 212 are positioned facing each other with the same magnetic poles. This is achieved by a magnetic repulsive force acting on magnet 255b and subsequently on the steel pin 255a, causing the steel pin 255a to move in the sliding directions 255c and 255d. The slides 255c, 255d and the steel pin 255a are provided with corresponding inclined surfaces 264, 265, which interact when the steel pin 255a is moved in the direction of the slides 255c, 255d, thereby pulling the slides 255c, 255d back into the housing 257, and thus moving the retaining element 255 to the permissible position.

[0109] Thus, the window lock 220 can be unlocked by a matching key 202 having a predetermined magnetic arrangement, whereas the window lock 220 cannot be unlocked by the same type of key having various different magnetic arrangements with respect to the key-side contour portion 208. Therefore, the window lock 220 and the key 202 are magnetically encoded through the number, position, and orientation of the magnetic poles of the magnets in the magnetic arrangement portion and the corresponding number, position, and orientation of the magnetic poles of the prevention element 254.

[0110] To hold the axial stopper element 254 in the stopper position when the key 202 is removed, the lock core 226 is provided with a retaining element 262 in the form of a ferromagnetic element. The stopper element 254 is held in the stopper position by magnetic attraction between the magnet 254b of the stopper element 254 and the retaining element 262. The strength of the magnet 214 and the strength of the magnet 254b of the stopper element 254 are adapted so that when the key 202 is assembled, the magnetic attractive force between the magnet 254b and the retaining element 262 is resolved by the magnetic repulsive force between the magnet 214 and the magnet 254b, and the stopper element 254 moves to the allowable position.

[0111] Furthermore, 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 housing 257a of the lock core 226. In addition, corresponding magnets 266 are provided on the slides 255c and 255d, and the two magnets 266 are arranged to face each other with the same magnetic poles. The magnetic attraction between magnet 255b and the retaining element 263 holds magnet 255b and, consequently, the steel pin 255a, away from the slides 255c and 255d. The magnetic repulsive force between the corresponding magnets 266 on the slides 255c and 255d holds the slides 255c and 255d in the locked position within the recess 241 and consequently within the locking element 255. The strengths of magnet 215, magnet 255b, and magnet 266 are such that when the key 202 is assembled, the magnetic attractive force between magnet 255b and the retaining element 263 is relieved by the magnetic repulsive force between magnet 215 and magnet 255b, and when magnet 255b and the steel pin 255a are moved in the direction of slides 255c and 255d, these slides 255c and 255d are pulled into the housing 257 against the magnetic repulsive force of magnet 266 due to the interaction of inclined surfaces 264 and 265, and consequently the radial prevention element 255 is moved to the acceptable position.

[0112] In the window lock 220, the surface 267 between the recess 241 and the centrally protruding surface 268 forms the contact surfaces of the contact surface arrangement portion 269 of the window lock 220, which is provided to make contact with the magnet arrangement portion 212.

[0113] The combination of a radially movable anti-vibration element and an axially movable anti-vibration element provides the window lock 220 with a particularly high level of vibration resistance.

[0114] Figures 4A to 4E show a fourth exemplary embodiment of the lock, key, and locking system. Figure 4A shows the key 302 and the lock 320 in oblique perspective views from diagonally below and diagonally behind, respectively. Figure 4B shows the key 302 in a view from below. Figure 4C shows the lock 320 in a top view relative to the lock side contour. Figures 4D to 4E show the key 302 and the lock 320 in 3 / 4 section views corresponding to the section planes labeled "IVd / e" in Figures 4B to 4C, i.e., a 3 / 4 section view before the key 302 is assembled (Figure 4D) and a 3 / 4 section view after the key 302 is assembled (Figure 4E).

[0115] Key 302 and lock 320 together form a lock system 380.

[0116] The lock 320 has a structure that is basically similar to the lock 20 shown in Figures 1A to 1G. For details, please refer to the above explanation regarding Figures 1A to 1G. Even if the corresponding components are designed differently in Figures 1A to 1G and Figures 4A to 4E, some of them are given the same reference numerals.

[0117] The lock 320 differs from the lock 20 in that the lock core 326 has a contour portion 339 at a first end accessible from the front side 28 of the lock 320, and this contour portion 339 preferably protrudes laterally beyond the flange 30 of the lock housing 22, and in this example has a lock-side contour portion 340 formed as an outer contour portion.

[0118] During installation into an opening in a thin wall, the flange 30 of the lock housing 22 forms a contact surface against one side of the thin wall. A nut is screwed onto the male thread 34 from the other side of the thin wall, thereby securing the lock within the opening.

[0119] The key 302 has a socket portion 306 having a key-side contour portion 308 in the form of an inner contour portion that fits the lock-side contour portion 340. Within the concave surface 310 surrounded by the key-side contour portion 308, a plurality of magnets 314 are arranged to form a magnet arrangement portion 312, having predetermined positions and orientations of magnetic poles. In the key 302, the grip portion 304 is formed by a handling contour portion located on the back side of the mounting portion 306.

[0120] In the present lock 320, the lock core 326 is designed in multiple parts, comprising a contour portion 339 and a core portion 327 located within the inner passage 24 of the lock housing 22, wherein the contour portion 339 and the core portion 327 are connected to each other in a manner that prevents relative rotation. For this purpose, in this exemplary embodiment, the contour portion 339 has an outer contour portion 370, and the core portion 327 has a corresponding inner contour portion 371, for example, a polygonal contour portion, which interlocks with each other in a shape-fitting manner. In this exemplary embodiment, the contour portion 339 is also connected to the core portion 327 so that a screw 50 guided through the core portion 327 is screwed into a female thread 372 provided in the contour portion 339. The multi-part design of the lock core 326 having a separate contour portion 339 allows for the selection of a particular contour portion from a number of different contour portions as needed.

[0121] Alternatively, the contour portion 339 and the core portion 327 may be formed as a single unit.

[0122] As shown in Figure 4D, the flange portion 30 of the lock housing 22 may preferably be provided with a circumferential seal 323, such as an O-ring, adjacent to the core portion 327. This seal can also seal the lock housing 22 toward the wall and prevent moisture from entering between the lock housing 22 and the core portion 327.

[0123] The anti-rotation means 352 of the window lock 320 comprises a plurality of anti-rotation elements 354 displaceably assembled within housings 356 on each veranda of the lock housing 22. These anti-rotation elements 354 may be displaced within each housing 356 between a rotating position (see Figure 4D) and a permissible position (see Figure 4E). In the rotating position (Figure 4D), the anti-rotation elements 354 engage with each recess 358 of the lock core 326, thereby preventing rotation of the lock core 326 within the lock housing 22 between the open and closed positions in a shape-fitting manner. In the permissible position (Figure 4E), the anti-rotation elements 354 are retracted into the housings 356 and are not engaged with the recesses 358, thereby allowing the anti-rotation elements 354 to rotate the lock core 326 within the lock housing between the open and closed positions.

[0124] The locking element 354 is designed as a magnet, and the position and orientation of its magnetic poles are matched to the magnet placement section 312 of the key 302 so that the locking element 354 can be moved to an acceptable position when the key 302 is assembled (Figure 4D). For this purpose, the locking element 354 designed as a magnet and the magnets 314 of the magnet placement section 312 are positioned and matched so that, in particular when the key 302 is assembled, each locking element 354 faces each magnet 314 of the magnet placement section 314 with anti-parallel magnetic pole matching, thereby acting on the locking element 354 to move it to an acceptable position. Furthermore, in this example, the lock core 326 is provided with a retaining element 362 in the form of a ferromagnetic element on the contour portion 339 of the lock core 326, which holds the locking element 354 in the locking position (Figure 4C) when the key 302 is not assembled. The magnet 314 and the prevention elements 354 are configured such that, when the key 302 is assembled, the retaining force between the retaining element 362 and each prevention element 354 is relieved by the repulsive force between the magnet 314 and each prevention element 354.

[0125] In this example, the lock-side contour 340 and the key-side contour 308 are asymmetrical, which means that the key-side contour 308 can only be positioned on the lock-side contour 308 in a predetermined orientation. In this example, there are 10 anti-magnetic elements 354 designed as magnets, and correspondingly 10 magnets 314 in the magnet placement section 312, resulting in a 2-way relationship with respect to the magnetic pole direction of the magnets. 10 This yields 1024 different possible combinations.

[0126] The orientation of the magnetic poles of each individual magnet 314 and the prevention element 354 is partially marked in the drawing with "N" (magnetic north pole) and "S" (magnetic south pole).

[0127] In this example, the housings 356 and assigned recesses 358 for the multiple anti-lock elements 354 are each at different distances from the rotation axis D of the lock core 326 (see Figure 4C). In this way, it is prevented that a predetermined anti-lock element 354 will enter another housing 356, and consequently return to a locking position that would hinder the rotation of the lock core 326, such as the closed position, especially during or after the reversal of the lock core 326 from the closed position. As a result, the lock core 326 can be freely moved, for example, to the closed position, because when the key 302 is removed, the anti-lock elements 354 can only return to the closed position within their respective housings 356.

[0128] The number of possible combinations for the magnet placement section 312 can be increased due to the different distances of the housing section 356 from the rotation axis D of the lock core 326. This is because, for example, in addition to the magnetic pole direction of each magnet 314, different radial positions relative to the rotation axis D of the lock core 326 can also be selected for each magnet 314. For this purpose, the magnetic force between the prevention element 354 and the magnet 314 is preferably adjusted so that the prevention element 354 can only be moved to each allowable position when the assigned magnet 314 is positioned at a predetermined distance from the rotation axis D.

[0129] Figures 5A to 5E show a fifth exemplary embodiment of the lock, key, and locking system. Figure 5A shows the key 402 and lock 420 in a perspective view. Figure 5B shows the key 402 in a plan view from the front of the key-side contour. Figure 5C shows the lock 420 in a top view relative to the lock-side contour. Figures 5D to 5E show the key 402 and lock 420 in 3 / 4 section views corresponding to the section planes labeled "Vd / e" in Figures 5B to 5C, i.e., a 3 / 4 section view before the key 402 is assembled (Figure 5D) and a 3 / 4 section view after the key 402 is assembled (Figure 5E).

[0130] Key 402 and lock 420 together form a lock system 480.

[0131] The lock 420 basically has an internal structure similar to the lock 20 shown in Figures 1A to 1G. For details, please refer to the above explanation regarding Figures 1A to 1G. Even if the corresponding components are designed differently in Figures 1A to 1G and Figures 4A to 4E, some of them are given the same reference numerals.

[0132] Lock 420 differs from lock 20 in that it is not designed as a window lock and is designed in the form of a profile cylinder with a locking lug 444, the locking lug 444 being connected to the lock core 426 so as not to rotate relative to it and may be optionally held in place by a spring 445 when the lock 420 is not being actuated, as shown in Figure 4A. In this example, the lock housing 422 has the shape of a profile cylinder, which allows lock 420 to be used in place of a conventional cylinder lock.

[0133] The first end of the lock 420, accessible from the front 28, has a lock core 426 having a lock-side contour 440 formed in this example as an inner contour, for example, a rectangular recess. Thus, the key 402 has a mounting portion 406 with a key-side contour 408 in the form of a protruding outer contour that fits into the lock-side contour 440. Alternatively, the lock-side contour 440 may be formed as an outer contour, for example, a rectangular protrusion, and the key-side contour 408 may be formed as an inner contour, for example, a rectangular inner contour.

[0134] The anti-locking means 452 of the window lock 420 comprises a plurality of anti-locking elements 454 in the form of magnets that are displaceably assembled within housings 456 on each veranda of the lock housing 422. Within each housing 456, the anti-locking elements 454 may be displaced between an anti-locking position (see Figure 5D) in which the anti-locking element 454 engages with each recess 458 of the lock core, and an allowable position (Figure 5E) in which the anti-locking element 454 is moved to allow rotation of the lock core 426 within the lock housing 422 when assembling the key 402 having a fitted magnet arrangement 412.

[0135] In this exemplary embodiment, the lock core 426 is formed of two parts: a core portion 427 located within the inner passage 424 of the lock housing 422, and a contour portion 439 with a lock-side contour portion 440. The core portion 427 and the contour portion 439 are connected so as not to rotate relative to each other, with the outer contour portion 470 of the core portion securely engaging with the inner contour portion 471 of the contour portion 439, so that a screw 50 passes through the core portion 427 and is screwed into a female thread 472 provided in the contour portion 439.

[0136] The lock-side contour 440 and the key-side contour 408 are asymmetrical, so that the key 402 can only be placed on the lock-side contour 440 in a predetermined orientation. In this example, the prevention means 452, which has nine prevention elements 454 designed as magnets, and the corresponding nine magnets 414 in the magnet placement section 412, result in a 2 in the direction of the magnetic poles of the magnets. 9 This yields 512 different possible combinations.

[0137] The orientation of the magnetic poles of each magnet 414 or prevention element 454 is partially marked in the drawing with "N" (magnetic north pole) and "S" (magnetic south pole).

[0138] Similar to the lock 320, in the lock 420, the housing portion 456 and the assigned recess 458 for the prevention element 454 are located at different distances from the rotation axis of the lock core 426 (see Figure 5C). This prevents the predetermined prevention element 454 from entering another housing portion 456 when the lock core 426 is reversed, thereby preventing it from returning to a prevention position that would hinder the rotation of the lock core 426, such as the initial position.

[0139] In the lock 420, the retaining element 462 is formed as a thin, annular plate of ferromagnetic metal inserted into the core portion 439. [Explanation of Symbols]

[0140] 2, 102, 202, 302, 402 keys 4, 104, 204, 304, 404 (Thumb part) 6, 106, 206, 306, 406 Mounting parts 8, 108, 208, 308, 408 Key side contour 10. Flange portion of the mounting part 12, 112, 212, 312, 412 Magnet placement section 14, 114, 214, 215, 314, 414 magnets 16 Markings 20, 120, 220, 320, 420 tablets 22, 122, 222, 422 lock housing 24, 124, 224, 424 inner passage 26, 126, 226, 326, 426 tablet cores 28, 128, 228 Front 30, 130, 230 Lock housing flange 32, 132, 232 Housing body 34, 134, 234 Male screw thread 36 nuts 38, 138, 238 First end of the tablet core 40, 140, 240, 340, 440 Lock side contour 42, 142, 242 Second end of tablet core 44, 144, 244 Rotating tongue pieces 46, 48, 146, 148, 246, 248 Corresponding contours 50, 150, 250 screws 52, 152, 252, 352, 452 Preventive measures 54, 154, 254, 255, 354, 454 Prevention elements 56, 156, 256, 257, 356, 456 storage units 58, 259 recesses 60 molding elements 62, 162, 262, 263, 362, 462 holding elements 63 Aperture 64 Front 66 Marking 67, 167, 267, 268 Contact surface 68, 168, 269 Contact surface arrangement part 80, 180, 280, 380, 480 tablet systems 90 aperture 92 Sheet metal door 94 Prevention surface 96 frames 109 Blind Hole 154a, 254a, 255a steel pin 154b, 254b, 255b magnets 156a First part of housing section 156 156b Second part of housing section 156 164 Side view 209 Convex part 210 sides 211 sides 241 recess 255c, 255d slides 256a First part of housing section 256 256b Second part of housing section 256 257a Axial portion of housing section 257 257b Radial portion of housing section 257 264, 265 Slope 266 Magnets 310 sides 323 Seals 327, 427 Core section 339, 439 Outline 358, 458 recesses 370, 470 Outer contour of the contour portion 371, 471 Inner contour of the core portion 372, 472 Female threads on the contour portion 444 Locking lug 445 spring A, B, C, D: Axis of rotation

Claims

1. The tablets are (20, 120, 220, 320, 420), - Lock housings (22, 122, 222, 422) and, - A lock core (26, 126, 226, 326, 426) is rotatably assembled within the lock housing (22, 122, 222, 422) and Equipped with, - The lock cores (26, 126, 226, 326, 426) are formed for the purpose of attaching keys (2, 102, 202, 302, 402) to transmit torque at first ends (38, 138, 238) accessible from the front side (28, 128, 228) of the locks (20, 120, 220, 320, 420), - The locks (20, 120, 220, 320, 420) have a prevention means (52, 152, 252, 352, 452) that prevents the lock core (26, 126, 226, 326, 426) from rotating within the lock housing (22, 122, 222, 422) between the open and closed positions when the key (2, 102, 202, 302, 402) is removed. - The aforementioned prevention means (52, 152, 252, 352, 452) is configured to allow the rotation of the lock core (26, 126, 226, 326, 426) within the lock housing (22, 122, 222, 422) between the open position and the closed position when a key (2, 102, 202, 302, 402) having a predetermined magnet arrangement portion (12, 112, 212, 312, 412) is assembled to the first end portion (38, 138, 238) of the lock core (26, 126, 226, 326, 426). In the tablets (20, 120, 220, 320, 420), - The lock core (326) has a contour portion (339) having a lock-side contour portion (340), the contour portion (339) protrudes laterally beyond the lock housing (22) at the first end, the contour portion (339) is flat, and at its edge, is defined by an outer contour portion that forms the lock-side contour portion (340), characterized in that the lock (20, 120, 220, 320, 420).

2. The lock according to claim 1, characterized in that the predetermined magnet arrangement section (12, 112, 212, 312, 412) each comprises a predetermined number of magnets (14, 114, 214, 215, 314, 414) having predetermined positions.

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

4. The aforementioned prevention means (52, 152, 252, 352) comprises a prevention element (54, 154, 254, 255, 354, 454), and the prevention element (54, 154, 254, 255, 354, 454) is located within the lock housing (22, 122, 222, 422) between the open position and the closed position, and the lock core (26, 126, 226 The lock according to claim 1, characterized in that the lock is assembled so as to be displaceable between a preventative position that prevents the rotation of the lock core (26, 126, 226, 326, 426) within the lock housing (22, 122, 222, 422) between the open position and the closed position.

5. The lock according to claim 4, characterized in that the lock core (26, 126, 226, 326, 426) and / or the lock housing (22, 122, 222, 422) has a housing (56, 156, 256, 257, 356, 467) into which the anti-lock elements (54, 154, 254, 255, 354, 454) are displaceably assembled.

6. The lock according to claim 4 or 5, wherein the prevention means comprises a plurality of prevention elements, each prevention element being assembled in a housing provided in the lock housing and / or the lock core, the housing being arranged to surround the rotation axis of the lock core, and the prevention element engaging in the respective assigned recess provided in the lock core and / or lock housing at the prevention position.

7. The lock according to claim 4, characterized in that the lock (20, 120, 220, 320, 420) has retaining elements (62, 162, 262, 263, 362, 462), and the retaining elements (62, 162, 262, 263, 362, 462) are configured to hold the preventing elements (54, 154, 254, 255, 354, 454) in the preventing position when the key (2, 102, 202, 302, 402) is removed, by magnetic interaction between the retaining elements (62, 162, 262, 263, 362, 462) and the preventing elements (54, 154, 254, 255, 354, 454).

8. The lock according to claim 4, characterized in that the prevention elements (54, 154, 254, 255, 354, 454) are configured to be moved to the allowable position when a key (2, 102, 202, 302, 402) having the predetermined magnet arrangement portion (12, 112, 212, 312, 412) is attached to the first end portion (38, 138, 238) of the lock core (26, 126, 226, 326, 426), that is, to be moved to the allowable position by magnetic interaction between the prevention elements (54, 154, 254, 255, 354, 454) and the magnet arrangement portion (12, 112, 212, 312, 412).

9. The lock according to claim 4, characterized in that the aforementioned prevention elements (54, 154, 254, 255, 354, 454) are magnets or comprise magnets.

10. The lock according to claim 1, wherein the lock (20, 120, 220, 320, 420) has contact surface arrangement portions (68, 168, 269) for contacting the predetermined magnet arrangement portions (12, 112, 212, 312, 412), and the preventing means (52, 152, 252, 352, 452) is arranged and configured to allow the rotation of the lock core (26, 126, 226, 326, 426) within the lock housing (22, 122, 222, 422) between the open position and the closed position.

11. The lock according to claim 10, characterized in that the contact surface arrangement portions (68, 168, 269) are arranged completely or at least partially separately from the lock side contour portions (40, 140, 240, 340, 440), and the contact surface arrangement portions (68, 168, 269) are arranged radially inward with respect to the rotation axis (A, B, C, D) of the lock core (26, 126, 226, 326, 426) than the lock side contour portions (40, 140, 240, 340, 440).

12. The lock according to claim 1, wherein the lock core (26, 126, 226, 326, 426) is formed of a plurality of parts, and has core parts (327, 427) disposed within the inner passages (24, 124, 224, 424) of the lock housing (22, 122, 222, 422), and contour parts (339, 439) having the lock side contour part (440), and the core parts (327, 427) and the contour parts (339, 439) are connected to each other so as not to rotate relative to each other.

13. The lock according to claim 1, characterized in that the lock housing (22, 122, 222, 422) is formed in the shape of a profile cylinder.

14. The keys are (2, 102, 202, 302, 402), - Equipped with a knob portion (4, 104, 204, 304) and a mounting portion (6, 106, 206, 306, 406), - The mounting portion (6, 106, 206, 306, 406) has key-side contour portions (8, 108, 208, 308, 408) for attaching to the lock core (26, 126, 226, 346, 426) of the lock (20, 120, 220, 320, 420) to transmit torque, - The keys (2, 102, 202, 302, 402) have magnet placement sections (12, 112, 212, 312, 412) on the mounting sections (6, 106, 206, 306, 406), In the keys (2, 102, 202, 302, 402), - The key (302) has an inner contour portion (308) that defines the flat region in which the magnet arrangement portion (312) is located. - The key (302) is a key for the lock (20, 120, 220, 320, 420) described in claim 1, characterized in that it is a key (2, 102, 202, 302, 402).

15. The key according to claim 14, characterized in that the magnet arrangement section (12, 112, 212, 312, 412) comprises one or more magnets (14, 114, 214, 215, 314, 414) positioned at each respective location.

16. The key according to claim 14 or 15, characterized in that the magnet arrangement portion (12, 112, 212, 312, 412) is arranged at least partially separately from and / or at least partially on the key-side contour portion (8, 108, 208, 308, 408).

17. The key according to claim 14, characterized in that the key (2, 102, 202, 302, 402) has a wall thickness of at least 4 mm.

18. A locking system (80, 180, 280, 380, 480), - The tablets (20, 120, 220, 320, 420) described in claim 1, - Keys (2, 102, 202, 302, 402) that match the aforementioned locks (20, 120, 220, 320, 420) and A locking system (80, 180, 280, 380, 480) equipped with these features.

19. The lock is a window lock, as described in claim 1.

20. The lock according to claim 6, wherein at least two of the housings arranged to surround the rotation axis of the lock core and / or the assigned recesses are at different distances from the rotation axis of the lock core.

21. The lock according to claim 20, wherein all of the housings and / or assigned recesses, which are arranged to surround the rotation axis of the lock core, are each at a different distance from the rotation axis of the lock core.

22. The key according to claim 15, wherein the magnet arrangement section (12, 112, 212, 312, 412) comprises a plurality of magnets (14, 114, 214, 215, 314, 414) positioned at each location, and at least two of the magnets (14, 114, 214, 215, 314, 414) each have different magnetic pole orientations.

23. The locking system according to claim 18, wherein the key is the key described in claim 14.

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