Locking device with two locking parts to be joined

Abstract

A locking device (1) comprises a first locking part (2) having at least one first engagement section (214A, 214B) and a first magnetic device (22), and a second locking part (3) having at least one engagement element (310A, 310B), at least one second engagement section (315A, 315B) arranged on the at least one engagement element, and a second magnetic device (32). The at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) can be brought into engagement with each other in an engagement direction (Y) in order to move the first locking part (2) and the second locking part (3) into the closed position without the at least one engagement element (310A, 310B) being moved in an unlocking direction (B) relative to the second base body (30) that differs from the engagement direction (Y).At least one engagement element (310A, 310B) is movable in the unlocking direction (B) relative to the second base body (30) from a locked position.

Description

[0001] The invention relates to a locking device according to the preamble of claim 1.

[0002] Such a locking device comprises a first locking part, which has a first base body, at least one first engagement section rigidly arranged on the first base body, and a first magnetic element, and a second locking part, which has a second base body, at least one engagement element, at least one second engagement section arranged on the at least one engagement element, and a second magnetic element. The first locking part and the second locking part can be brought into contact with each other in a closing direction, aided by magnetic attraction between the first magnetic element and the second magnetic element. In a closed position, the first locking part and the second locking part are held together by the engagement of the at least one first engagement section and the at least one second engagement section.

[0003] Such a locking device serves to connect two assemblies associated with the locking parts, for example as a strap fastener for connecting straps or strap ends (such as in a belt).

[0004] From EP 2 833 754 B1, a locking device is known in which two locking parts can be attached to one another along a closing direction, supported by magnetic attraction of magnetic devices. Rigid engagement sections with undercuts are formed on the base bodies of the locking parts, which engage with each other when the locking parts are attached and, in a closed position, locked by a locking element, create a firm hold of the locking parts to one another.

[0005] CN 211154098 U describes a locking device in which two locking parts, like a snap buckle, can be inserted together so that the locking parts are held together in a closed position by a locking mechanism.

[0006] It may be desirable, in some cases, to allow opening under load in a locking device that provides a secure, resilient hold between the locking parts when closed. However, the locking device should be easy to use, especially when closing it. For example, the locking device could be designed as a belt buckle to connect two belts, where closing should be simple and intuitive, the belts should be securely held together when closed, and opening under load should be possible if desired.

[0007] The object of the present invention is to provide a locking device that is easy and convenient to use and, if necessary, allows opening under load.

[0008] This problem is solved by an object having the features of claim 1.

[0009] Accordingly, at least one first engagement section and at least one second engagement section can be brought into engagement with each other in an engagement direction in order to move the first locking part and the second locking part into the closed position, without the at least one engagement element being moved in an unlocking direction relative to the second base body that differs from the engagement direction. The at least one engagement element can be moved out of a locked position relative to the second base body in the unlocking direction in order to disengage the at least one first engagement section from the at least one second engagement section in the unlocking direction, so that the first locking part and the second locking part can be separated from each other in an opening direction.

[0010] In one embodiment, the at least one first engagement section and the at least one second engagement section are engaged with each other in the closed position such that movement of the first locking part and the second locking part relative to each other in the opening direction is blocked. The at least one engagement element is movable relative to the second base body from a blocked position in order to disengage the at least one first engagement section and the at least one second engagement section from each other, so that the first locking part and the second locking part can be separated from each other in the opening direction.

[0011] The fastening device can, for example, be designed as a belt buckle. For this purpose, a webbing holder can be formed on the first fastening part and / or on the second fastening part, to which a belt can be attached.

[0012] A load direction of the locking device, i.e. a direction along which a load acts when the locking device is used as intended, can in particular be in the same direction as the direction of engagement.

[0013] In this locking device, closing is achieved by bringing the locking parts together. This engagement can occur, in particular, at least approximately, along a closing direction along which the magnetic elements of the locking parts are magnetically attracted to each other, thus drawing the locking parts magnetically towards one another. During closing, the engagement sections of the first and second locking parts engage with each other, so that in the closed position, the locking parts are held together by the engagement of these sections.

[0014] At least on the last part of the closing path, the engagement sections are pushed into engagement with each other in the direction of engagement (which may be in the same direction as the closing direction or, for example, at an angle or perpendicular to the closing direction), so that in the closed position the engagement sections are in positive or force-fit engagement with each other.

[0015] The first and second locking parts can be aligned and moved into the closed position without moving at least one of the engagement elements relative to the second base body. To align the locking parts and thus close the locking device, at least one of the engagement elements of the second locking part does not need to be actuated. Rather, the locking parts can be aligned without any movement of at least one of the engagement elements relative to the second base body of the second locking part. Closing the locking device is therefore simple and convenient, without the user having to actuate at least one of the engagement elements of the second locking part. This also prevents the locking parts from jamming during closing.

[0016] To open the locking device, the engagement between the engagement sections is released by moving at least one engagement element in an unlocking direction relative to the second base body, in a direction different from the engagement direction. Moving at least one engagement element in the unlocking direction releases the engagement between the engagement sections, allowing the first and second locking parts to move relative to each other in the opening direction and thus separate. Actuating at least one engagement element releases the locking effect of the engagement sections, enabling the locking parts to open relative to each other.

[0017] The engagement direction and the unlocking direction differ here. In particular, the unlocking direction can be perpendicular to the engagement direction. The engagement sections can thus be brought into engagement with each other and out of engagement with each other in different directions. Engaging during the closing of the locking device is achieved by bringing the engagement sections into contact with each other in the engagement direction. To open the locking device, on the other hand, the engagement sections can be brought out of engagement with each other by actuating at least one engagement element on the second locking part, so that the engagement is released and the locking parts can be separated from each other by an opening movement.

[0018] The opening direction is not opposite to the engagement direction. Therefore, the locking device is not opened by separating the locking parts from each other in the opposite direction to the engagement direction.

[0019] For example, the opening direction can correspond to the engagement direction, so that, after actuation of at least one engagement element, the locking parts can be moved relative to each other in the opening direction that is the same as the engagement direction and thus separated from each other.

[0020] The closing direction is essentially defined by the direction along which the magnetic devices attract each other magnetically when the locking parts are attached, and along which the locking parts are thus pulled towards each other.

[0021] The closing direction can be the same as the engagement direction, so that the closing direction is magnetically assisted when the parts are placed together, thus pulling them towards each other in the engagement direction. However, the closing direction can also be perpendicular or oblique to the engagement direction.

[0022] The locking device opens along the opening direction, which is, for example, the same direction as the closing direction. The opening direction differs, for example (but not necessarily), from the closing direction. Along the opening direction, the locking components can be separated to open the device, so that in the open position, the locking components are separated from each other.

[0023] In the closed position, opening along the opening direction is blocked by the engagement of the locking sections. Because the engagement sections of the locking parts are in contact with each other, there is a positive locking or a force-fit locking between the locking parts, which prevents the locking parts from being separated (easily) along the opening direction.

[0024] To open the lock, at least one engagement element of the second locking part must be moved on the second base body of the second locking part, thereby disengaging at least one first engagement section of the first locking part and at least one second engagement section of the second locking part, which is attached to at least one engagement element. Once the engagement element has been moved on the base body of the second locking part, the locking effect of the engagement sections is released, and the locking parts can be separated from each other along the opening direction (for example, the same direction as the engagement direction).

[0025] To close the fastener, the locking parts are brought together along the closing direction. This involves moving the locking parts relative to each other and bringing them closer together in the closing direction. Therefore, closing is achieved through a relative movement of the locking parts, regardless of which locking part is actively moved.

[0026] To open, the locking parts are moved relative to each other in the opening direction. Opening also occurs through a relative movement of the locking parts, specifically by moving them apart in the opening direction, regardless of which locking part is actively moved.

[0027] The first engagement section, at least one, is rigidly formed on the first base body. The first base body can, in particular, be formed as a rigid, one-piece or multi-piece component, for example, from a plastic material such as PA6, POM, TPU, or PP. The first engagement section, at least one, is rigidly formed on the first base body in such a way that it is immovably attached to the first base body when the locking device is used as intended.

[0028] In one embodiment, at least one engagement element can be moved out of the locked position along a plane of movement relative to the second base body. The movement of at least one engagement element on the second base body of the second locking part can be achieved by pivoting or by sliding the engagement element. This movement occurs in the plane of movement. Accordingly, the unlocking direction is not necessarily exactly straight, but can correspond to a curved direction of movement.

[0029] The plane of movement can be defined, for example, by the direction of engagement and the direction of unlocking.

[0030] In other embodiments, the movement of at least one engagement element can also occur obliquely or perpendicularly to a plane spanned by the engagement direction and the unlocking direction.

[0031] The at least one engagement element can, in principle, be pivotable or movable, along a straight or curved path of movement, on the second base body of the second locking part.

[0032] If the first locking part has two engagement sections and the second locking part has two engagement elements, each with a second engagement section, the engagement elements can be moved towards each other, for example in the unlocking direction, to release the engagement of the engagement sections and thus to unlock the locking device.

[0033] In one embodiment, at least one engagement element is pivotably connected to the second base body.

[0034] In this embodiment, at least one engagement element can be integrally connected to the second base body, for example, via a flexible connecting section. The at least one engagement element is thus formed integrally with the second base body, which may be made of plastic, for example, but is pivotable relative to the second base body via the flexible connecting section. A restoring force can also be exerted on the at least one engagement element in the direction of the locking position via the flexible connecting section, so that an additional spring preload provided by a separate spring element on the at least one engagement element is not strictly necessary.

[0035] In another embodiment, at least one engagement element can be pivotally mounted at a bearing point of the second base body. In this case, at least one engagement element is designed as a separate element compared to the second base body and is pivotally connected to the base body.

[0036] A pivot plane, along which at least one engagement element can pivot relative to the second base body, can in particular be defined by the engagement direction and the unlocking direction.

[0037] In one embodiment, at least one engagement element is spring-loaded relative to the second base body in the direction of the locking position via a spring element. The at least one engagement element is thus tensioned in the direction of the locking position by a separate spring element and, without any user force being applied to actuate it, assumes the locking position on the second base body. From the locking position, the at least one engagement element can be moved out of position by user action, contrary to the spring tension, in order to disengage the engagement sections and thus unlock the locking device, allowing the locking parts to be separated from each other in the opening direction.

[0038] The spring force during actuation can, after unlocking and moving the locking parts in the opening direction, contribute to separation if, for example, at least one engagement element supports a displacement of the locking parts relative to each other in the opening direction via force-redirecting ramps.

[0039] In other embodiments, a force in the direction of the locking position can be provided on the at least one engagement element by magnetic interaction, for example by magnetic attraction or repulsion between an additional magnetic device of the at least one engagement element and the second magnetic device of the second locking part and / or the first magnetic device of the first locking part.

[0040] In one embodiment, an actuating structure of the at least one engagement element is arranged outside the engagement chamber, while the at least one engagement section lies within the engagement chamber. A partition wall of the first base body can, for example, be accommodated in a recess between the actuating structure and the engagement section.

[0041] In one embodiment, an actuating element can be movably arranged on the first locking part and be designed to act on at least one engagement element on the second locking part in the sense of indirect actuation when actuated.

[0042] In one embodiment, the first locking element has two first engagement sections. The second locking element has two engagement elements, each with a second engagement section, that are movable relative to the second base body. In the closed position, the first engagement sections and the second engagement sections are engaged with each other. The two first engagement sections are preferably spaced apart from each other along the unlocking direction. Complementarily, the two engagement elements are spaced apart from each other along the unlocking direction on the second base body of the second locking element. Thus, the engagement sections enable symmetrical engagement at axially spaced locations (along the unlocking direction), allowing for advantageous force transmission between the locking elements in the closed position.

[0043] In one embodiment, the engagement elements on the second base body can be moved towards each other along the unlocking direction to disengage the first and second engagement sections. For example, a user can press on the engagement elements to bring them closer together along the unlocking direction, thereby disengaging the engagement sections. This results in simple and convenient handling for the user.

[0044] The engagement elements are preferably arranged symmetrically on the second base body. Complementarily, the first engagement sections are arranged symmetrically on the first base body. One mirror plane is, for example, perpendicular to the unlocking direction.

[0045] In one embodiment, the at least one first engagement section and the at least one second engagement section each form an undercut with respect to a direction perpendicular to the engagement and unlocking directions. If the closing direction is perpendicular to the engagement and unlocking directions, the first engagement section and the second engagement section each form an undercut with respect to the closing direction. Accordingly, the first engagement section and the second engagement section form a projection transverse to the closing direction, so that the engagement sections are each undercut with respect to the closing direction.In the closed position, the engagement sections are in engagement with each other, so that a positive locking mechanism exists against the closing direction and also in the opening direction, and the locking parts are thus supported against each other in a load-bearing manner via the engagement of the engagement sections against the closing direction and in the opening direction.

[0046] In one embodiment, the at least one first engagement section forms a first contact surface and the at least one second engagement section forms a second contact surface, wherein the first contact surface and the second contact surface face each other in the closed position to block movement in the engagement direction. In particular, when the locking device is loaded in the engagement direction, there is contact between the contact surfaces, so that the engagement sections are supported against each other in the engagement direction and movement of the locking parts relative to each other in the opening direction, i.e., in the direction of separation of the locking parts, is blocked.

[0047] The installation areas can be oriented in different ways relative to the direction of intervention.

[0048] The first contact surface and / or the second contact surface can, for example, be oriented perpendicular to the direction of engagement. In this case, movement of the locking elements in the direction of engagement is positively locked in the closed position due to the alignment of the opposing contact surfaces.

[0049] In another embodiment, the first contact surface and / or the second contact surface are inclined at a positive angle to the direction of engagement. This means that the contact of the contact surfaces causes a force redirection at the contact surfaces in the direction of unlocking, such that at least one engagement element is subjected to a load in the unlocking direction. Consequently, when a load is applied between the locking parts in the direction of engagement, the at least one engagement element is automatically moved in the unlocking direction due to the force redirection. The locking device can thus be designed to be self-opening if a sufficiently large load force acts between the locking parts.

[0050] In yet another embodiment, the first contact surface and / or the second contact surface are oriented at a negative angle to the direction of engagement. This means that the contact of the contact surfaces causes a force redirection across the contact surfaces in the opposite direction to the unlocking direction. This results in at least one engagement element being loaded in the opposite direction to the unlocking direction, and thus, when a load is applied between the locking parts in the direction of engagement, the force redirection leads to a self-reinforcing effect of the engagement sections. Under load, the engagement of the engagement sections is further strengthened, ensuring that the locking parts are held together particularly reliably and with high strength in the closed position.

[0051] In another configuration, the installation surfaces can also be curved or follow a circular path.

[0052] In one embodiment, the first and second locking parts are positively locked or force-fitted to one another by the engagement of at least one first engagement section and at least one second engagement section, both in the direction of engagement and in the direction of engagement. The engagement sections thus hold the locking parts together in the direction of engagement and in the direction of engagement. The engagement sections interact in a positively locked or force-fitted manner. In a positively locked configuration, the engagement sections are trapped against each other due to their shape and cannot be separated without breaking the positive lock.In a force-fit connection, the locking sections interact in a form-fit and also friction-fit manner, in that the form-fit can be automatically released due to a force redirection when a sufficiently large force is applied, by elastically pushing aside at least one engagement element.

[0053] In one embodiment, the at least one first engagement section and the at least one second engagement section are designed to collide when the first and second locking parts are engaged, such that the first and second locking parts are displaced relative to each other in a direction opposite to the engagement direction, thereby causing the at least one first engagement section and the at least one second engagement section to move past each other. The engagement of the locking parts and their movement into the closed position can be achieved, in particular, such that the at least one engagement element on the second base body remains unchanged, i.e., is not deflected from the locking position.To engage the first engagement section, which is preferably rigidly formed on the first base body, with the second engagement section on the engagement element, the engagement sections are moved past each other in the closing direction by running into each other and being (slightly) offset in the opposite direction to the engagement direction. Once the engagement sections have passed each other, they can be pushed into engagement in the engagement direction, thus establishing the engagement between the engagement sections.

[0054] In one embodiment, the at least one first engagement section has a first ramp and / or the at least one second engagement section has a second ramp to guide the at least one first engagement section and the at least one second engagement section together. The (respective) ramp is inclined to the closing direction and provides a force redirection in the opposite direction to the engagement direction, so that when the engagement sections with their ramps run into each other, the engagement sections are offset in the opposite direction to each other and thus guided past each other.

[0055] In one embodiment, the at least one first engagement section and the at least one second engagement section, after being moved past each other, can be displaced into engagement with each other in the direction of engagement. If the engagement sections, assisted by the magnetic attraction of the magnetic device, have been moved past each other in the closing direction, with the engagement sections running into each other, the engagement sections can then be moved into engagement with each other in the direction of engagement, so that in the closed position the engagement sections are in engagement with each other.

[0056] In one embodiment, the locking device has a locking element that is arranged and configured on one of the first and second base bodies to block the engagement of the at least one first engagement section and the at least one second engagement section against the direction of engagement (i.e., in the opposite direction). For example, the locking element can be arranged on the first base body and thus on the first locking part. In other embodiments, however, it is also conceivable that the locking element is arranged on the second base body and thus on the second locking part. The locking element blocks relative movement between the locking parts against the direction of engagement. The engagement sections can therefore not be disengaged from each other against the direction of engagement, so that the engagement sections are held in engagement with each other by the locking element.

[0057] The locking element is adjustable on its associated base body, allowing it to deflect when the locking parts are brought together. Specifically, the locking element can be elastically deflected on the first base body of the first locking part or on the second base body of the second locking part.

[0058] In other embodiments, the locking element can be articulated or slidably arranged on the associated base body. The locking element can be spring-loaded towards the home position by a mechanical spring. In yet other embodiments, the locking element can also interact magnetically with the first magnetic device and / or the second magnetic device in the closed position, so that the locking element is biased towards the home position by magnetic interaction and thus held locked in the home position.

[0059] In one embodiment, the locking element can be moved out of its initial position when the first and second locking parts are aligned, so that the at least one first engagement section and the at least one second engagement section can be brought into engagement with each other. During or after the engagement of the at least one first and the at least one second engagement section, the locking element returns to its initial position to lock the engagement of the at least one first and the at least one second engagement section in the opposite direction to the engagement. For example, when the locking parts are aligned, the locking element is deflected from its initial position.Once the engagement sections have been moved into engagement with each other, the locking element returns to its initial position and thus locks the engagement, so that the engagement sections cannot be moved out of engagement in the opposite direction to the direction of engagement.

[0060] In one embodiment, the other of the first base body and the second base body has a locking section configured to cooperate with the locking element to block the engagement of the at least one first engagement section and the at least one second engagement section in the opposite direction of engagement. If the locking element is arranged on the first base body of the first locking part, the locking section is formed on the second base body of the second locking part, in particular as a rigid, non-adjustable section. If, on the other hand, the locking element is arranged on the second base body of the second locking part, the locking section is formed on the first base body of the first locking part, in particular as a rigid, non-adjustable section.

[0061] The locking element can, for example, also act on at least one engagement element to lock in the opposite direction to the engagement direction.

[0062] In one embodiment, the locking section, in the closed position, engages a section of one of the first and second base bodies, thus positively locking the first and second base bodies against each other in the opposite direction of closing. The locking section of the other base body, in the closed position, engages a section of the first base body, so that this engagement—in addition to the engagement of the engagement sections—supports and secures the locking parts relative to each other in the opposite direction of closing. Preferably, the engagement is such that the locking section and the section in the opening direction can be disengaged from each other as soon as the locking effect of the engagement sections is released by moving at least one engagement element.

[0063] In one embodiment, the first base body has a blocking section. In the closed position, the second base body engages behind the blocking section, so that the first and second base bodies are positively locked to each other against the closing direction. The blocking section is formed on the first base body, on which the (movable) locking element is also located. In the closed position, the second base body engages behind the blocking section, so that this engagement—in addition to the engagement of the engagement sections—supports and secures the locking parts relative to each other against the closing direction.The engagement between the blocking section and the second base body is preferably such that the base bodies can be pushed out of engagement from each other in the opening direction as soon as the locking effect of the engagement sections is lifted by moving at least one engagement element.

[0064] In one embodiment, the blocking section is spaced apart from at least one first engagement section along the direction of engagement. Through the engagement of the engagement sections, and furthermore through the engagement of the blocking section on the first base body with an associated section on the second base body, support is thus provided against the closing direction at spaced locations offset from one another along the direction of engagement. In this way, tilting of the locking parts relative to each other about a tilting axis perpendicular to the closing direction can be effectively counteracted, so that the locking parts are supported against each other in a positionally stable manner in the closed position.

[0065] In general, tilting of the locking parts in the closed position can be prevented if there are contact points between the locking parts with a distance along the direction of engagement to the engagement sections.

[0066] Alternatively, the intervention sections themselves (with reference to the direction of intervention) can be sufficiently long to provide an intervention with a comparatively large overlap length or sufficiently narrow so that tilting is not possible or only possible to a limited extent due to the intervention of the intervention sections.

[0067] Alternatively, a pin on one locking component can be guided in a guide groove on the other locking component (e.g., adjacent to the engagement section). The pin can be inserted into the guide groove to close the lock and locks in the closed position in the opposite direction to the closing direction. The guide groove is open in the opening direction, allowing the pin to be pushed out of the guide groove to open the lock.

[0068] In the closed position, a certain degree of tilting of the locking components relative to each other may be permitted. However, in a tiltable version, the locking components can still be held at least slightly against tilting (depending on the arrangement) by magnetic attraction. Alternatively, the magnets can be arranged so that the magnetic mechanism tilts along with one of the locking components.

[0069] The intervention sections can be circular or curved to assist in tilting.

[0070] In one embodiment, the locking device has a locking element that is arranged on one of the first and second base bodies, assumes a locking position in the closed position, and must be moved out of the locking position to open the locking device. The locking element can serve as an additional safeguard for the connection between the locking parts, in addition to the connection of the locking parts via the engagement of the engagement sections in the closed position.

[0071] The locking element can be located on the first base body and thus on the first locking part. However, the locking element can also be located on the second base body and thus on the second locking part.

[0072] In one embodiment, the locking element is designed to prevent movement of at least one engagement element relative to the second base body in the locked position, thus preventing the disengagement of at least one first engagement section and at least one second engagement section. In the locked position, the locking element is arranged relative to the at least one engagement element in such a way that movement of the engagement element out of the locked position is blocked, and the engagement element cannot be moved out of the locked position, at least not without actuating the locking element. In this case, the locking element thus provides protection against the unintentional actuation of the at least one engagement element in the closed position.Only after moving the locking element out of the locking position can at least one engagement element be actuated to disengage the engagement sections from each other.

[0073] The locking element creates a locking device that can be opened by two specific actions. First, the locking element must be unlocked to allow movement of at least one engagement element. Then, at least one engagement element must be moved out of the locked position to release the engagement of the sections. Only then can the locking parts be separated in the opening direction. This creates a locking device that can be used as a safety lock in safety-relevant applications, for example, in a life jacket, a child car seat, or a stroller.

[0074] In one embodiment, the locking element can be moved out of the locked position to allow movement of at least one engagement element relative to the second base body. The locking element can be actuated by a user to unlock the locking device. To do this, a user can move the locking element out of the locked position, in particular to release at least one engagement element, so that the at least one engagement element can be moved out of the locked position and the locking device can thus be opened.

[0075] In one embodiment, the locking element can be moved out of the locked position in an actuation direction that is the same as the closing direction. The locking element can be actuated by a user, for example, by pressing on it. The actuation of the locking element then occurs in an actuation direction that is the same as the closing direction. If at least one engagement element is to be actuated in a direction perpendicular to the closing direction, then the actuation of the locking element and the subsequent actuation of the engagement element thus occur in different directions, for example, approximately perpendicular to each other.

[0076] In one embodiment, the locking element has a locking section for interaction with the at least one engagement element. In the locked position of the locking element, the locking section obstructs, for example, the at least one engagement element, preventing the at least one engagement element from moving past the locking element and thus preventing it from being moved out of the locked position.

[0077] In one embodiment, the at least one engagement element is designed to slide onto the locking section when the locking element has been moved out of the locked position and the at least one engagement element is moved to disengage the at least one first engagement section and the at least one second engagement section, so that the locking element is held in a position disengaged from the locked position. By sliding onto the locking section, the at least one engagement element holds the locking element in the unlocked position, so that after the at least one engagement element has been actuated, a user no longer needs to actuate the locking element and can thus open the locking device simply and conveniently by separating the locking parts in the opening direction.

[0078] The locking element is, for example, elastically connected to one of the first and second base bodies. If the locking element is part of the first locking part, it is elastically connected to the first base body. Conversely, if the locking element is part of the second locking part, it is elastically connected to the second base body. The locking element can, in particular, be integrally designed with its respective base body, but in this case, it is elastically deflectable relative to that base body.Such an elastic, flexible connection allows a restoring force to be provided to the locking element in the direction of the locking position, so that the locking element automatically assumes the locking position on the respective associated base body when there is no user operation or the locking element is not held in the unlocked position by at least one engagement section.

[0079] In another embodiment, the locking element can be designed as a separate part and articulated to the associated base body. In yet another embodiment, the locking element can also be slidable on the associated base body.

[0080] In one embodiment, the locking element has a first locking section which, in the closed position, interacts with a second locking section on the other of the first and second base bodies to prevent relative movement of the first and second locking parts in the opening direction and / or against the closing direction. In addition to or as an alternative to a locking function that prevents the actuation of at least one engagement element in the closed position, the locking element thus has a supporting function for bracing the locking parts relative to each other. Under load, the locking sections can come into contact with each other in a bracing manner, so that the locking parts are additionally supported against each other in the opening direction and / or against the closing direction in a particularly robust manner.If the locking element is moved out of the locked position, the locking sections also become separated from each other, so that the locking sections can be moved past each other and the locking device can thus be opened.

[0081] In one embodiment, the second locking element has two engagement elements, each with a second engagement section, which are movable relative to the second base body. These engagement elements can be moved towards each other along an unlocking direction on the second base body to disengage the first and second engagement sections from each other. The locking element is preferably arranged between the engagement elements along the unlocking direction in the locked position. This intermediate position prevents the engagement elements from moving towards each other, thus ensuring that the engagement sections cannot be disengaged from each other.By actuating the locking element, for example perpendicular to the unlocking direction and thus out of a space between the engagement elements, the engagement elements are released and can thus be moved towards each other, so that the locking device can be opened in the opening direction by separating the locking parts.

[0082] In one embodiment, the first and second base bodies are guided against each other in a way that allows them to slide in the opening direction. For this purpose, each base body can have a guide structure, for example, a guide rib on one base body and an associated guide groove on the other, or surfaces that slide against each other, so that the locking elements can be moved relative to each other in a defined manner in the opening direction as soon as the engagement of the engagement sections is released.

[0083] In one embodiment, at least one engagement element is in contact with at least one surface section of the first base body in the closed position, thus preventing movement of the first locking part and the second locking part relative to each other along the unlocking direction. In particular, a guide structure can be provided that supports the locking parts against each other in the closed position along the unlocking direction, especially transversely to the engagement direction, and thus secures the locking parts relative to each other.

[0084] Such surface sections can also be used to provide guidance during opening, so that the locking parts can be moved slidably relative to each other in the opening direction after actuation of at least one engagement element, in order to separate the locking parts from each other.

[0085] The first magnetic device of the first locking part and the second magnetic device of the second locking part can each be designed, for example, by a permanent magnet or by an arrangement of several permanent magnets, wherein the magnetic devices are positioned opposite each other with opposite poles when the locking parts are attached, and thus a magnetic attraction exists between the magnetic devices to assist in closing the locking device.

[0086] For example, the magnetic devices formed by permanent magnets can be arranged in such a way that each magnetic device has a plurality of different magnetic poles (north pole or south pole) spatially offset along a contact surface, pointing towards the other magnetic device. In this way, the locking parts can be attracted to each other in the correct orientation to close the locking device.

[0087] In other embodiments, one of the magnetic devices can be designed by a permanent magnet or by an arrangement of several permanent magnets, and the other of the magnetic devices by one or more passive magnetic elements, for example one or more ferromagnetic armatures.

[0088] In one embodiment, the first and second magnetic devices, when closed, are offset relative to each other along the direction of engagement, such that a magnetic attraction force component acts between the first and second locking parts in the direction of engagement. Due to the magnetic attraction of the magnetic devices and the offset between them along the direction of engagement, a force component (in addition to the magnetic attraction in the closing direction) also exists in the direction of engagement, so that the engagement sections are magnetically biased towards each other in the direction of engagement and held in engagement with one another.

[0089] Such an offset can, in particular, ensure that when the locking parts are placed against each other, the engagement sections are reliably pulled into engagement with each other in the direction of engagement as soon as the engagement sections have passed each other in the closing direction.

[0090] A fastening device of the described type can, for example, be used as a webbing fastener, also known as a belt buckle, to connect two straps. Generally, such a fastening device can be used to connect any number of assemblies, with one fastening part belonging to a first assembly and the other to a second assembly, and the assemblies being secured to one another by connecting the fastening parts.

[0091] The underlying concept of the invention will be explained in more detail below with reference to the exemplary embodiments shown in the figures. The figures show: Fig. 1A an exploded view of an embodiment of a locking device with a first locking part and a second locking part; Fig. 1B another exploded view of the locking device; Fig. 2A a view of the locking device when the locking parts are joined together to close the locking device; Fig. 2B a top view of the arrangement according to Fig. 2A; Fig. 2C a side view of the arrangement according to Fig. 2A; Fig. 2D a section view along line AA according to Fig. 2B; Fig. 2E a sectional view along line BB according to Fig. 2B; Fig. 2F a section view along line DD according to Fig. 2B; Fig. 2G a sectional view along line EE according to Fig. 2C; Fig. 2H a sectional view along line GG according to Fig. 2C; Fig. 3A a view of the locking device when the locking parts are further joined together to close the locking device; Fig. 3B a top view of the arrangement according to Fig. 3A; Fig. 3C a side view of the arrangement according to Fig. 3A; Fig. 3D section view along line AA according to Fig. 3B; Fig. 3E a sectional view along line BB according to Fig. 3B; Fig. 3F a section view along line DD according to Fig. 3B; Fig. 3G a section view along line EE according to Fig. 3C; Fig. 3H a sectional view along line GG according to Fig. 3C; Fig. 4A a view of the locking device in an applied position before the final closed position; Fig. 4B a top view of the arrangement according to Fig. 4A; Fig. 4C a side view of the arrangement according to Fig. 4A; Fig. 4D a section view along line AA according to Fig. 4B; Fig. 4E a sectional view along line BB according to Fig. 4B; Fig. 4F a section view along line DD according to Fig. 4B; Fig. 4G a sectional view along line EE according to Fig. 4C; Fig. 4H a sectional view along line GG according to Fig. 4C; Fig. 5A a view of the locking device in the closed position; Fig. 5B a top view of the arrangement according to Fig. 5A; Fig. 5C a side view of the arrangement according to Fig. 5A; Fig. 5D a section view along line AA according to Fig. 5B; Fig. 5E a sectional view along line BB according to Fig. 5B; Fig. 5F a section view along line DD according to Fig. 5B; Fig. 5G a cross-sectional view along line EE according to Fig. 5C; Fig. 5H a sectional view along line GG according to Fig. 5C; Fig. 6A a view of the locking device when opened by moving two engagement elements from a locked position; Fig. 6B a top view of the arrangement according to Fig. 6A; Fig. 6C a side view of the arrangement according to Fig. 6A; Fig. 6D a section view along line AA according to Fig. 6B; Fig. 6E a sectional view along line BB according to Fig. 6B; Fig. 6F a section view along line DD according to Fig. 6B; Fig. 6G a sectional view along line EE according to Fig. 6C; Fig. 6H a sectional view along line GG according to Fig. 6C; Fig. 7A a view of the locking device in an open position; Fig. 7B a top view of the arrangement according to Fig. 7A; Fig. 7C a side view of the arrangement according to Fig. 7A; Fig. 7D a section view along line AA according to Fig. 7B; Fig. 7E a sectional view along line BB according to Fig. 7B; Fig. 7F a section view along line DD according to Fig. 7B; Fig. 7G a sectional view along line EE according to Fig. 7C; Fig. 7H a sectional view along line GG according to Fig. 7C; Fig. 8A an exploded view of another embodiment of a locking device with a first locking part and a second locking part; Fig. 8B another exploded view of the locking device; Fig. 9A a view of the locking device when the locking parts are joined together to close the locking device; Fig. 9B a top view of the arrangement according to Fig. 9A; Fig. 9C a side view of the arrangement according to Fig. 9A; Fig. 9D a section view along line AA according to Fig. 9B; Fig. 9E a sectional view along line BB according to Fig. 9B; Fig. 9F a section view along line DD according to Fig. 9B; Fig. 9G a sectional view along line EE according to Fig. 9C; Fig. 9H a sectional view along line GG according to Fig. 9C; Fig. 10A a view of the locking device when the locking parts are further joined together to close the locking device; Fig. 10B a top view of the arrangement according to Fig. 10A; Fig. 10C a side view of the arrangement according to Fig. 10A; Fig. 10D a sectional view along line AA according to Fig. 10B; Fig. 10E a sectional view along line BB according to Fig. 10B; Fig. 10F a section view along line DD according to Fig. 10B; Fig. 10G a sectional view along line EE according to Fig. 10C; Fig. 10H a sectional view along line GG according to Fig. 10C; Fig. 11A a view of the locking device in an applied position, before the final closed position; Fig. 11B a top view of the arrangement according to Fig. 11A; Fig. 11C a side view of the arrangement according to Fig. 11A; Fig. 11D a sectional view along line AA according to Fig. 11B; Fig. 11E a sectional view along line BB according to Fig. 11B; Fig. 11F a sectional view along line DD according to Fig. 11B; Fig. 11G a sectional view along line EE according to Fig. 11C; Fig. 11H a sectional view along line GG according to Fig. 11C; Fig. 12A a view of the locking device in the closed position; Fig. 12B a top view of the arrangement according to Fig. 12A; Fig. 12C a side view of the arrangement according to Fig. 12A; Fig. 12D a sectional view along line AA according to Fig. 12B; Fig. 12E a sectional view along line BB according to Fig. 12B; Fig. 12F a sectional view along line DD according to Fig. 12B; Fig. 12G a sectional view along line EE according to Fig. 12C; Fig. 12H a sectional view along line GG according to Fig. 12C; Fig. 13A a view of the locking device when opened by moving two engagement elements from a locked position; Fig. 13B a ​​top view of the arrangement according to Fig. 13A; Fig. 13C a side view of the arrangement according to Fig. 13A; Fig. 13D a section view along line AA according to Fig. 13B; Fig. 13E a sectional view along line BB according to Fig. 13B; Fig. 13F a sectional view along line DD according to Fig. 13B; Fig. 13G a sectional view along line EE according to Fig. 13C; Fig. 13H a sectional view along line GG according to Fig. 13C; Fig. 14A a view of the locking device in an open position; Fig. 14B a top view of the arrangement according to Fig. 14A; Fig. 14C a side view of the arrangement according to Fig. 14A; Fig. 14D a section view along line AA according to Fig. 14B; Fig. 14E a sectional view along line BB according to Fig. 14B; Fig. 14F a sectional view along line DD according to Fig. 14B; Fig. 14G a sectional view along line EE according to Fig. 14C; Fig. 14H a sectional view along line GG according to Fig. 14C; Fig. 15A an exploded view of an embodiment of a locking device with a first locking part and a second locking part; Fig. 15B another exploded view of the locking device; Fig. 16A a view of the locking device when the locking parts are joined together to close the locking device; Fig. 16B a top view of the arrangement according to Fig. 16A; Fig. 16C a side view of the arrangement according to Fig. 16A; Fig. 16D a sectional view along line AA according to Fig. 16B; Fig. 16E a sectional view along line BB according to Fig. 16B; Fig. 16F a sectional view along line CC according to Fig. 16B; Fig. 16G a sectional view along line DD according to Fig. 16B; Fig. 16H a sectional view along line EE according to Fig. 16C; Fig. 16I a sectional view along line FF according to Fig. 16C; Fig. 17A a view of the locking device when the locking parts are further joined together to close the locking device; Fig. 17B a top view of the arrangement according to Fig. 17A; Fig. 17C a side view of the arrangement according to Fig. 17A; Fig. 17D a sectional view along line AA according to Fig. 17B; Fig. 17E a sectional view along line BB according to Fig. 17B; Fig. 17F a sectional view along line CC according to Fig. 17B; Fig. 17G a sectional view along line DD according to Fig. 17B; Fig. 17H a sectional view along line EE according to Fig. 17C; Fig. 17I a sectional view along line FF according to Fig. 17C; Fig. 18A a view of the locking device in an applied position, before the final closed position; Fig. 18B a top view of the arrangement according to Fig. 18A; Fig. 18C a side view of the arrangement according to Fig. 18A; Fig. 18D a sectional view along line AA according to Fig. 18B; Fig. 18E a sectional view along line BB according to Fig. 18B; Fig. 18F a sectional view along line CC according to Fig. 18B; Fig. 18G a sectional view along line DD according to Fig. 18B; Fig. 18H a sectional view along line EE according to Fig. 18C; Fig. 18I a sectional view along line FF according to Fig. 18C; Fig. 19A a view of the locking device in the closed position; Fig. 19B a top view of the arrangement according to Fig. 19A; Fig. 19C a side view of the arrangement according to Fig. 19A; Fig. 19D a sectional view along line AA according to Fig. 19B; Fig. 19E a sectional view along line BB according to Fig. 19B; Fig. 19F a sectional view along line CC according to Fig. 19B; Fig. 19G a sectional view along line DD according to Fig. 19B; Fig. 19H a sectional view along line EE according to Fig. 19C; Fig. 19I a sectional view along line FF according to Fig. 19C; Fig. 20A a view of the locking device when moving a locking element out of a locked position; Fig. 20B a top view of the arrangement according to Fig. 20A; Fig. 20C a side view of the arrangement according to Fig. 20A; Fig. 20D a sectional view along line AA according to Fig. 20B; Fig. 20E a sectional view along line BB according to Fig. 20B; Fig. 20F a sectional view along line CC according to Fig. 20B; Fig. 20G a sectional view along line DD according to Fig. 20B; Fig. 20H a sectional view along line EE according to Fig. 20°C; Fig. 20I a sectional view along line FF according to Fig. 20°C; Fig. 21A a view of the locking device when opened by moving two engagement elements out of a locked position; Fig. 21B a top view of the arrangement according to Fig. 21A; Fig. 21C a side view of the arrangement according to Fig. 21A; Fig. 21D a sectional view along line AA according to Fig. 21B; Fig. 21E a sectional view along line BB according to Fig. 21B; Fig. 21F a sectional view along line CC according to Fig. 21B; Fig. 21G a sectional view along line DD according to Fig. 21B; Fig. 21H a sectional view along line EE according to Fig. 21C; Fig. 21I a sectional view along line FF according to Fig. 21C; Fig. 22A a view of the locking device in an open position; Fig. 22B a top view of the arrangement according to Fig. 22A; Fig. 22C a side view of the arrangement according to Fig. 22A; Fig. 22D a sectional view along line AA according to Fig. 22B; Fig. 22E a sectional view along line BB according to Fig. 22B; Fig. 22F a sectional view along line CC according to Fig. 22B; Fig. 22G a sectional view along line DD according to Fig. 22B; Fig. 22H a sectional view along line EE according to Fig. 22C; Fig. 22I a sectional view along line FF according to Fig. 22C; Fig. 23A a sectional view of an embodiment, showing an engagement of engagement sections in the closed position; Fig. 23B an enlarged view in section D according to Fig. 23A; Fig. 24A the sectional view according to Fig. 23A, after moving the engagement elements out of the locked position; Fig. 24B an enlarged view in section E according to Fig. 24A; Fig. 25A a sectional view of another embodiment, showing an engagement of engagement sections in the closed position; Fig. 25B an enlarged view in section F according to Fig. 25A; Fig. 26A the sectional view according to Fig. 25A, after moving the engagement elements out of the locked position; Fig. 26B an enlarged view in section H according to Fig. 26A; Fig. 27A a sectional view of an embodiment, showing an engagement of engagement sections in the closed position; Fig. 27B an enlarged view in section G according to Fig. 27A; Fig. 28A the sectional view according to Fig. 27A, after moving the engagement elements out of the locked position; and Fig. 28B an enlarged view in section I according to Fig. 28A.

[0092] Fig. Figures 1A, 1B to 7A-7H show an embodiment of a locking device 1 comprising a first locking part 2 and a second locking part 3. The locking parts 2, 3 can be joined to one another along a closing direction X and are arranged in a Fig. 5A-5H are connected to each other in the closed position shown, so that assemblies 4, 5 (schematically shown in Fig. 2A), which are assigned to the locking parts 2, 3, are securely fixed to each other.

[0093] The locking elements 2, 3 each have a base body 20, 30 and a magnetic device 22, 32. The magnetic devices 22, 32, each formed, for example, by one or more permanent magnets, are received in a corresponding receiving opening 204, 304 on the respective base body 20, 30. When the locking elements 2, 3 are attached, the magnetic devices 22, 32 are magnetically attracted to each other and thus magnetically assist the attachment of the locking elements 2, 3 along the closing direction X.

[0094] The locking element 2, also referred to as the female locking element, forms an engagement chamber 201 into which the locking element 3 with a body section 301 can be inserted in the closing direction X. Within the engagement chamber 201, a guide rib 203 is formed, raised relative to a base 202, which extends longitudinally along an engagement direction Y (corresponding to an opening direction) and provides a sliding guide for the body section 301 along the engagement direction Y.

[0095] In the illustrated embodiment, two locking elements 212 in the form of elastically deflectable locking tongues are formed on the base 202.

[0096] Within the guide rail 203, the magnetic device 22 is received in the associated receiving opening 204.

[0097] In the illustrated embodiment, two engagement sections 214A, 214B are formed on the walls laterally delimiting the engagement chamber 201. Each of these sections forms an undercut 210A, 214B, projecting transversely to the closing direction X. The engagement sections 214A, 214B together form a first engagement device 21 for interaction with a second engagement device 31 of the closure part 3.

[0098] The base body 20 also has a webbing holder 200 formed on it, to which an assembly 4 in the form of a belt can be attached, as shown in Fig. 2A is evident.

[0099] The locking element 3, also referred to as the male locking element, has engagement elements 310A, 310B which are arranged laterally to the body section 301 (with respect to a transverse direction perpendicular to the closing direction X and the engagement direction Y) and are each connected to the base body 30 via a flexible connecting section 311A, 311B. Due to elasticity at the connecting section 311A, 311B, the engagement elements 310A, 310B are elastically deflectable relative to the base body 30 along an unlocking direction B perpendicular to the closing direction X and the engagement direction Y.

[0100] Each of the engagement elements 310A, 310B has an engagement section 315A, 315B formed, which, with respect to the closing direction X, forms an undercut 312A, 312B and is designed to engage with an associated engagement section 214A, 214B of the closure part 2. The engagement elements 310A, 310B with the engagement sections 214A, 214B formed on them together form the second engagement device 31 for interaction with the first engagement device 21 of the closure part 2.

[0101] On an underside 302 of the body section 301 facing the locking part 2, a guide groove 303 extending longitudinally along the engagement direction Y is formed, into which, in the closed position of the locking device 1, the guide web 203 on the base 202 of the engagement chamber 201 of the locking part 2 engages. The locking parts 2, 3 are thereby guided (after unlocking by actuating the engagement elements 310A, 310B) slidably against each other along the engagement direction Y corresponding to the opening direction, so that the locking parts 2, 3 can be separated from each other along a defined displacement path.

[0102] To close the locking device 1, the locking parts 2, 3 are brought close together in the closing direction X and thereby pressed against each other, as is the case in the transition from Fig. 2A-2H towards Fig. 3A-3H can be seen. The locking parts 2, 3 are magnetically attracted towards each other in the closing direction X by the magnetic interaction of the magnetic devices 22, 32.

[0103] During assembly, the engagement sections 214A, 214B of the closure part 2 and the engagement sections 315A, 315B of the engagement elements 310A, 310B of the closure part 3 come into contact with each other with their undercuts 210A, 210B, 312A, 312B and slide onto each other with ramps 211A, 211B, 313A, 313B, as can be seen from the sectional view according to Fig. 3F is evident. By sliding, the locking parts 2, 3 are displaced in a direction Y' opposite to the direction of engagement Y, so that the engagement sections 214A, 214B, 315A, 315B with their undercuts 210A, 210B, 312A, 312B can slide past each other and pass each other.

[0104] Fig. Figures 4A-4H show the locking device 1 with the locking parts 2, 3 in an engaged position, but before the final closed position is established. During or after the engagement sections 214A, 214B, 315A, 315B with their undercuts 210A, 210B, 312A, 312B pass each other, fixed locking sections 305 formed on both sides of the body section 301 come into contact with the locking elements 212 on the base 202 of the engagement chamber 20. The locking elements 212 are thus elastically deflected from a basic position, as shown by Fig. 4E is evident.

[0105] In the assigned position according to Fig. 4A-4H the magnetic devices 22, 32 are offset relative to each other along the direction of engagement Y, as can be seen from the sectional view according to Fig. This is evident in 4D. A magnetic force component therefore also acts in the direction of intervention Y.

[0106] This causes the locking parts 2, 3 to move towards each other in the engagement direction Y, so that the engagement sections 214A, 214B, 315A, 315B engage with each other in the engagement direction Y, as can be seen from the sectional view according to Fig. 5F, showing the locking device 1 in the closed position, is evident.

[0107] At the in Fig. The position shown in Figures 4A-4H is not a stable position of the locking device 1; rather, the locking parts 2, 3 are immediately and automatically ejected from the position shown in Figures 4A-4H due to the magnetic attraction of the magnetic devices 22, 32. Fig. 4A-4H shown, set position in the closed position according to Fig. 5A-5H moved.

[0108] When the locking parts 2, 3 are moved in the engagement direction Y to establish the engagement of the engagement sections 214A, 214B, 315A, 315B, the locking sections 305 slide off the locking elements 212, so that the locking elements 212 snap elastically back into their initial position, as can be seen from the sectional view according to Fig. 5E is evident. The locking elements 212 thus lock the locking sections 305 in the opposite direction Y', so that the engagement sections 214A, 214B, 315A, 315B are held in engagement with each other.

[0109] In the Fig. In the closed position shown in Figures 5A-5H, the locking parts 2 and 3 are supported and fixed relative to each other by the engagement of the undercuts 210A, 210B, 312A, 312B of the engagement sections 214A, 214B, 315A, 315B against the closing direction X and also in the engagement direction Y. Furthermore, a counter-movement in the opposite direction Y' is blocked by the locking action of the locking elements 212. Due to the engagement in the engagement chamber 2, the locking part 3 is also supported along the transverse direction perpendicular to the closing direction X and the engagement direction Y. The locking parts 2 and 3 are thus held against each other in all spatial directions (possibly with a certain amount of play).

[0110] As this is shown Fig. As can be seen in Figure 5G, in the closed position the engagement elements 310A, 310B with the undercuts 312A, 312B and the connecting sections 311A, 311B with associated surface sections 208, 209 are in contact with the base body 20 of the locking part 2 and are thereby supported on the base body 20 along a transverse direction that points perpendicular to the closing direction X and perpendicular to the engagement direction Y. In the closed position, the locking parts 2, 3 are thus supported against each other along the transverse direction (which corresponds to the unlocking direction B), in addition to the transverse support via the engagement of the guide web 203 in the guide groove 303.

[0111] An actuating section of the respective engagement element 310A, 310B, which a user can actuate, is located outside the engagement chamber 201 on the base body 20 of the closure part 2.

[0112] The locking parts 2 and 3 are engaged without deflecting the engagement elements 310A and 310B on the base body 30 of the locking part 3. Instead, the engagement sections 214A, 214B, 315A, and 315B engage with each other by sliding onto one another without the engagement elements 310A and 310B being adjusted relative to the base body 30.

[0113] In the illustrated embodiment, the closing direction X, along which the locking parts 2, 3 can be magnetically engaged, extends at least approximately perpendicular to the engagement direction Y. However, the fact that the locking parts 2, 3 can be engaged in the closing direction X to close the locking device 1 does not mean that they can only be engaged in the closing direction X. Rather, the locking parts 2, 3 can also be brought close to and engaged in a direction deviating from the closing direction X, for example, an oblique direction, to close the locking device 1.

[0114] If the locking device 1 is to be opened, a user can press on the engagement elements 310A, 310B in an unlocking direction B, as shown from Fig. 6A-6H. The engagement elements 310A, 310B are thereby moved under elastic deformation at the connecting sections 311A, 311B relative to the base body 30 and deflected in a pivot plane perpendicular to the closing direction X at the base body 30, so that the undercuts 210A, 210B, 312A, 312B are pushed apart and the engagement sections 315A, 315B of the engagement elements 310A, 310B are disengaged from the engagement sections 214A, 214B on the base body 20 of the closure part 2, as can be seen from the sectional view according to Fig. 6G is evident.

[0115] As can be seen from the sectional view according to Fig. As can be seen in Figure 6G, the engagement elements 310A, 310B, in the illustrated embodiment, strike the locking sections 305 on the body section 301, so that a pivoting path of the engagement elements 310A, 310B in the unlocking direction B is limited and excessive deflection of the engagement elements 310A, 310B in the unlocking direction B is prevented.

[0116] Once the engagement sections 214A, 214B, 315A, 315B have been disengaged from each other by movement of the engagement elements 310A, 310B, the locking of the locking parts 2, 3 is released in the opening direction corresponding to the engagement direction Y and also in the opposite direction to the closing direction X. The locking parts 2, 3 can thus be slid apart in the opening direction corresponding to the engagement direction Y or, if necessary, lifted apart in the opposite direction to the closing direction X and thereby separated from each other. Fig. Figures 7A-7H show the locking components after opening, as can be seen in the opening direction. In the illustrated open position, locking components 2 and 3 are separated from each other, so that the associated assemblies 4 and 5 are detached from each other.

[0117] In a modified, in Fig. In the embodiment shown in Figures 8A, 8B to 14A-14H, unlike the embodiment described above, the engagement elements 310A, 310B are not integrally formed with the base body 30 of the closure part 3, but are designed as separate elements, each of which is mounted on the base body 30 at an associated bearing point 306A, 306B, as can be seen from the exploded views according to Fig. 8A, Fig. 8B in conjunction with, for example, Fig. 9A is evident.

[0118] The engagement elements 310A, 310B are each spring-loaded relative to the body section 301 of the base body 30 via an associated spring element 314A, 314B. The spring elements 314A, 314B exert a spring load on the engagement elements 310A, 310B in the direction of the locking position, so that the engagement elements 310A, 310B assume the locking position without user operation due to the spring tension.

[0119] To open the locking device 1, the engagement elements 310A, 310B can be pivoted in the unlocking direction B against the spring tension of the spring elements 314A, 314B relative to the base body 30, as shown from Fig. As can be seen from 13A-13H, the engagement of the engagement sections 214A, 214B, 315A, 315B is released and the locking device 1 is unlocked. The locking parts 2, 3 can thus be pushed apart in the engagement direction Y and therefore separated from each other.

[0120] Apart from the design of the engagement elements 310A, 310B on the locking part 3, the locking device 1 is identical to the previously described embodiment, so reference should be made to the explanations therein.

[0121] In another, in Fig. In the embodiment shown in figures 15A, 15B to 22A-22I, the engagement elements 310A, 310B are as in the embodiment according to Fig. 1A, 1B to 7A-7H, integrally formed with the base body 30 of the closure part 3 and connected to the base body 30 in an elastically deflectable manner via flexible connecting sections 311A, 311B. The engagement elements 310A, 310B each have an engagement section 315A, 315B which, in the closed position ( Fig. 19A-19I) with the respective associated engagement section 210A, 210B within the engagement chamber 201 of the closure part 2, so that the closure parts 2, 3 are fixed to each other in the engagement direction Y and also against the closing direction X.

[0122] The basic functionality of the embodiment according to Fig. 15A, 15B to 22A-22I are identical to the previously explained embodiment according to Fig. 1A, 1B to 7A-7H. To close the locking device 1, the locking parts 2, 3 are placed against each other in the closing direction X ( Fig. 16A-16I), so that the undercuts 210A, 210B, 312A, 312B of the engagement sections 214A, 214B, 315A, 315B meet each other in pairs with ramps 211A, 211B, 213A, 213B and the locking parts 2, 3 are offset to each other in the opposite direction Y' to the engagement direction Y ( Fig. 17A-17I). The undercuts 210A, 210B, 312A, 312B of the engagement sections 214A, 214B, 315A, 315B can thus pass each other and reach the intended position according to Fig. 18A-18I, from which the locking parts 2, 3 automatically move into the closed position due to the magnetic attraction of the magnetic device 22, 32 according to Fig. 19A-19I are pulled. In the closed position, the engagement sections 214A, 214B, 315A, 315B engage with each other via the undercuts 210A, 210B, 312A, 312B, so that the locking parts 2, 3 are fixed to each other in the engagement direction Y and against the closing direction X.

[0123] Within the engagement chamber 201, locking elements 212 in the area of ​​the base 202 are formed in the form of elastically deflectable spring tongues, which are deflected from a basic position when the locking parts 2, 3 are brought into contact with each other, as can be seen from the sectional view according to Fig. As can be seen in Figure 18E. When attached, the locking part 3 acts on the locking elements 212 with locking sections 305 arranged on both sides of the body section 301 and deflects them from their initial position under elastic deformation.

[0124] As soon as the locking parts 2, 3 have entered the closed position, the locking elements 212 snap back and thus assume a position opposite the locking sections 305, as can be seen from the sectional view according to Fig. 19E shows that in the closed position, the locking elements 212 prevent movement of the locking parts 2, 3 relative to each other in the opposite direction Y' and thus lock the engagement sections 214A, 214B, 315A, 315B in their engagement.

[0125] In the illustrated embodiment, a locking element 33 is arranged on the locking part 3, which is integrally connected to the base body 30 via two connecting arms 332 and can be deflected elastically in an actuation direction A, which is in the same direction as the closing direction X, relative to the base body 30.

[0126] In a non-displaced, relaxed position, the locking element 33 assumes a locking position on the base body 30, as can be seen from the exploded views according to Fig. 15A, Fig. 15B and also, for example, from Fig. 16A-16I is removable. In this locking position, the locking element 33, viewed along the unlocking direction B, is arranged with a locking section 333 between the engagement elements 310A, 310B such that the locking section 333 blocks a movement of the engagement elements 310A, 310B towards each other in the unlocking direction B.

[0127] The locking element 33 also assumes this locking position in the closed position according to Fig. 19A-19I. In the closed position, actuation of the engagement elements 310A, 310B is thus blocked, so that the locking device 1 cannot be opened easily.

[0128] Locking sections 331 are formed on the locking element 33, in the form of laterally projecting (transverse to the direction of engagement Y) stub elements which in the closed position according to Fig. 19A-19I assume a counterpart to locking sections 205 in the form of inwardly projecting pins on the base body 20, as can be seen from the sectional view according to Fig. As can be seen in 19F. The locking element 33 thus provides additional support between the locking parts 2, 3 in the closed position, also in the engagement direction Y corresponding to the opening direction.

[0129] In the closed position, the locking sections 305 of the locking part 3, formed on both sides of the body section 301, engage behind the blocking sections 206 of the locking part 2, which project on both sides from the raised guide rib 203. This engagement, as shown in the Fig. As can be seen in 19E, the locking parts 2, 3 are additionally supported relative to each other in the opposite direction of the closing direction X, so that an additional safeguard against separation of the locking parts 2, 3 in the opposite direction of the closing direction X is created.

[0130] As this is shown Fig. As can be seen in Figure 19H, in the closed position the engagement elements 310A, 310B with the undercuts 312A, 312B and the connecting sections 311A, 311B with associated surface sections 208, 209 are in contact with the base body 20 of the locking part 2 and are thereby supported on the base body 20 along a transverse direction that points perpendicular to the closing direction X and perpendicular to the engagement direction Y. In the closed position, the locking parts 2, 3 are thus supported against each other along the transverse direction (which corresponds to the unlocking direction B), in addition to the transverse support via the engagement of the guide web 203 in the guide groove 303.

[0131] An actuating section of the respective engagement element 310A, 310B, which a user can actuate, is located outside the engagement chamber 201 on the base body 20 of the closure part 2.

[0132] To open the locking device 1, a user actuates the locking element 33 in the actuation direction A, as shown in the figure. Fig. 20A-20I is evident.

[0133] This removes the locking section 333 from its blocking intermediate position between the engagement elements 310A, 310B, so that the engagement elements 310A, 310B can now be moved towards each other in the unlocking direction B, as can be seen from the sectional view according to Fig. 20I is evident.

[0134] By actuating the locking element 33, the locking sections 331 are also moved from their opposite position with the locking sections 205 on the locking part 2, as can be seen from the sectional view according to Fig. 20F is evident. The locking effect of the locking element 33 in the opening direction is thus eliminated.

[0135] If a user activates the engagement elements 310A, 310B in the unlocking direction B by pushing the engagement elements 310A, 310B towards each other and thereby deflecting them at the base body 30, the engagement sections 214A, 214B, 315A, 315B are disengaged from each other. The locking effect of the engagement sections 214A, 214B, 315A, 315B is thus canceled, as can be seen from Fig. 21A-21I. The locking parts 2, 3 can thus be pushed apart in the opening direction corresponding to the direction of engagement Y and thus separated from each other, as shown in Fig. 22A-22I visible.

[0136] When the engagement elements 310A, 310B are actuated in the unlocking direction B, the engagement elements 310A, 310B slide onto the locking section 333 of the locking element 33, as can be seen from Fig. 21A in conjunction with Fig. As can be seen in Figure 21I. The locking element 33 is thus held in the unlocked position and no longer needs to be operated by a user. This results in a simple, convenient opening process for moving the locking parts 2 and 3 in the opening direction relative to each other.

[0137] Because the locking sections 305, in conjunction with the blocking sections 206, do not block movement in the opening direction parallel to the direction of engagement Y (but only movement against the closing direction X), the locking parts 2, 3 can be pushed away from each other in the opening direction unhindered by the blocking sections 206 and the locking sections 305.

[0138] At the in Fig. In the embodiment shown in Figures 15A, 15B to 22A-22I, the magnetic device 22 is enclosed in the associated receiving opening 204 in the base body 20 via a cover element 207, as shown in the exploded view according to Fig. See 15B.

[0139] Furthermore, the magnetic device 32 is enclosed by a cover element 307 in the associated receiving opening 304 within the body section 301 on the base body 30, as shown in the exploded view according to Fig. 15A is visible.

[0140] Guide cheeks 308 are formed on the cover element 307, which support the connecting arms 332 of the locking element 33 along a transverse direction perpendicular to the engagement direction Y and perpendicular to the closing direction X, thus guiding the locking element 33 on the base body 30 in such a way that the locking element 33 can be deflected in the actuation direction A, but not perpendicular to it. The cover element 307 also prevents any unintended upward deflection of the locking element 33 (opposite the actuation direction A).

[0141] In the illustrated embodiments, the locking elements 212 are designed as spring tongues integrally formed with the base body 20. However, other configurations of a locking element are also conceivable. For example, the locking element can be designed as a flap element pivotably arranged on the base body 20 of the locking part 2, which is biased into its home position relative to the base body 20 by a mechanical spring or magnetically. Alternatively, the locking element can be designed as a passively magnetic flap which is held in its home position by the magnetic device 22 of the locking part 2 or by the magnetic device 32 of the locking part 3 and thereby interacts in a locking manner with an associated locking section on the side of the locking part 3.

[0142] A locking element can be arranged on locking part 3 instead of on locking part 2 in order to interact with an associated locking section on locking part 2 in the opposite direction Y'. This does not change the fundamental operating principle.

[0143] In the illustrated embodiments, the engagement elements 310A, 310B are pivotably arranged on the base body 30 of the locking part 3. In other embodiments, the engagement elements 310A, 310B can, for example, be slidably arranged on the base body 30, along a straight path of movement or along a curved path of movement.

[0144] A restoring, elastic force on the engagement elements 310A, 310B can be effected by an integral connecting section 311A, 311B, which is elastically deformable, as in the embodiments according to Fig. 1A, 1B to 7A-7H and according to Fig. 15A, 15B to 22A-22I. Additionally or alternatively, a restoring force can be provided via separate spring elements 314A, 314B, as in the embodiment shown in Figure 1. Fig. 8A, 8B to 14A-14H. In other embodiments, a restoring force can be provided by magnetic interaction, for example a magnetic repulsion between a permanent magnet on the respective engagement element 310A, 310B and the magnetic device 32 of the locking part 3 and / or the magnetic device 22 of the locking part 2.

[0145] When using a locking element 33, as in the embodiment shown in the Fig. For components 15A, 15B to 22A-22I, a preload on the engagement elements 310A, 310B in the locked position can also be omitted. In this case, the engagement elements 310A, 310B are secured in the locked position by the locking element 33.

[0146] If necessary, the engagement elements 310A, 310B can be reset to the locking position in this case, for example, by resetting the locking element 33 to the locking position, for example via force-redirecting ramps.

[0147] In the described embodiments, the locking part 2 has two engagement sections 214A, 214B, and the locking part 3 has two engagement elements 310A, 310B, each with an engagement section 315A, 315B. It is also conceivable and possible to have only one engagement section or more than two engagement sections on the locking part 2, and a corresponding number of engagement elements on the locking part 3.

[0148] The engagement sections 214A, 214B on the locking part 2 and the engagement sections 315A, 315B on the engagement elements 310A, 310B form contact surfaces 213, 316 for support in the engagement direction Y, which face each other in the closed position, as shown in an embodiment in Fig. 23A, Fig. 23B and Fig. 24A, Fig. 24B is evident.

[0149] These installation areas 213, 316 can, as in the embodiment shown in the illustration, Fig. 23A, Fig. 23B and Fig. 24A, Fig. 24B is positioned at an angle to the engagement direction Y and exhibits a negative angle with the engagement direction Y such that the engagement is self-reinforcing when a load is applied in the engagement direction Y. If a load force acts in the engagement direction Y in the closed position, the contact surfaces 213, 316, due to their contact, redirect the force such that a force component acts outwards at the engagement elements 310A, 310B in the opposite direction to the unlocking direction B. The engagement of the engagement sections 214A, 214B, 315A, 315B is thus further intensified under load.

[0150] By user operation, the engagement elements 310A, 310B can be moved out of the locked position, so that the contact surfaces 213, 316 are moved from their opposite position, thereby releasing the locking effect in the engagement direction Y and allowing the locking parts 2, 3 to be separated from each other in the engagement direction Y, as shown in Fig. 24A, Fig. 24B is evident.

[0151] In another, in Fig. 25A, Fig. 25B and Fig. 26A, Fig. In the embodiment shown in Figure 26B, the contact surfaces 213, 316 are aligned perpendicular to the direction of engagement Y and thus establish a positive locking connection with respect to the direction of engagement Y. By moving the engagement elements 310A, 310B out of the locking position, the contact surfaces 213, 316 are displaced from their opposite position, so that the locking effect in the direction of engagement Y is released and the locking parts 2, 3 can be separated from each other in the direction of engagement Y.

[0152] In yet another one, in Fig. 27A, Fig. 27B and Fig. 28A, Fig.In the embodiment shown in Figure 28B, the contact surfaces 213, 316 are inclined to the engagement direction Y and have a positive angle to the engagement direction Y. Thus, when a load is applied between the locking parts 2, 3 in the engagement direction Y, the contact surfaces 213, 316 deflect the force such that a force component acts inwards in the unlocking direction B at the engagement elements 310A, 310B. The locking device 1 is therefore automatically unlocked when a limit force defined by the elasticity of the engagement elements 310A, 310B is exceeded. In this case, the engagement sections 214A, 214B, 315A, 315B thus engage together in the closed position by positive locking.

[0153] The underlying idea of ​​the invention is not limited to the embodiments described above, but can also be realized in other ways.

[0154] A fastening device of the described type can, for example, be used as a webbing fastener, also known as a belt buckle. In this case, at least one of the fastening parts is connected to a strap.

[0155] The locking device can generally be used as a closure to connect any assemblies together, for example as a closure on a container, such as a suitcase, a bag, a schoolbag or a backpack.

[0156] Because the locking parts have magnetic devices, the lock closes automatically or at least largely automatically, supported by a magnetic attraction between the magnetic devices.

[0157] Because a first locking part has at least one rigid engagement section and a second locking part has a movable engagement element with an engagement section, the locking parts can be separated from each other under load by moving the at least one engagement element to release the engagement of the engagement sections on the second locking part.

[0158] In the illustrated embodiments, the engagement elements are arranged on a male locking part, while a female locking part forms an engagement chamber. However, in other embodiments, it is also possible that at least one movable engagement element with an engagement section is arranged on a female locking part and a rigid engagement section is arranged on a male locking part. Reference symbol list 1 locking device 2. Locking part 20 basic shapes 200 webbing holders 201 Intervention Chamber 202 Floor 203 Management Bridge 204 Intake opening 205 Blocking section 206 Blocking section 207 Cover element 208, 209 Area section 21 Intervention device 210A, 210B Undercut (engagement projection) 211A, 211B Ramp 212 Locking element 213 Plant area 214A, 214B Intervention section 22 Magnetic device 3. Locking part 30 basic shapes 300 webbing holders 301 Body section 302 Underside 303 Guide groove 304 Intake opening 305 Locking section 306A, 306B Storage location 307 Cover element 308 leading flanks 31 Intervention device 310A, 310B Intervention element 311A, 311B Connection section 312A, 312B Undercut (intervention projection) 313A, 313B Ramp 314A, 314B Spring element 315A, 315B Intervention section 316 Plant area 32 Magnetic device 33 Safety element 330 operating surface 331 Blocking section 332 connecting arms 333 Safety section 4, 5 assemblies (belts) A Direction of action B Unlocking direction X Closing direction Y Direction of intervention Y' Opposite direction

Claims

Locking device (1), comprising a first locking part (2) comprising a first base body (20), at least one first engagement section (214A, 214B) rigidly arranged on the first base body (20), and a first magnetic device (22), and a second locking part (3) comprising a second base body (30), at least one engagement element (310A, 310B), at least one second engagement section (315A, 315B) arranged on the at least one engagement element, and a second magnetic device (32), wherein the first locking part (2) and the second locking part (3) can be attached to one another in a closing direction (X), supported by a magnetic attraction of the first magnetic device (22) and the second magnetic device (32), wherein in a closed position the first locking part (2) and the second locking part (3) are held together by the at least one first engagement section (214A,214B) and the at least one second engagement section (315A, 315B) are in engagement with each other, characterized in that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) can be brought into engagement with each other in an engagement direction (Y) in order to move the first locking part (2) and the second locking part (3) into the closed position, without the at least one engagement element (310A, 310B) being moved in an unlocking direction (B) different from the engagement direction (Y) relative to the second base body (30), wherein the at least one engagement element (310A, 310B) is movable in the unlocking direction (B) relative to the second base body (30) from a locked position in order to disengage the at least one first engagement section (214A, 214B) in the unlocking direction (B) from the to introduce at least a second intervention section (315A, 315B),so that the first locking part (2) and the second locking part (3) can be separated from each other in one opening direction. Locking device (1) according to claim 1, characterized in that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) engage with each other in the closed position such that movement of the first locking part (2) and the second locking part (3) relative to each other in the opening direction is blocked. Locking device (1) according to claim 1 or 2, characterized in that the unlocking direction (B) is directed transversely to the engagement direction (Y). Locking device (1) according to one of claims 1 to 3, characterized in that the opening direction is not opposite to the engagement direction (Y). Locking device (1) according to one of the preceding claims, characterized in that the engagement direction (Y) corresponds to the opening direction. Locking device (1) according to one of the preceding claims, characterized in that the engagement direction (Y) is the same as the closing direction (X) or is perpendicular or oblique to the closing direction (X). Locking device (1) according to one of the preceding claims, characterized in that a load direction, along which a load acts between the first locking part (2) and the second locking part (3) when the locking device (1) is used as intended, is directed in the engagement direction (Y). Locking device (1) according to one of the preceding claims, characterized in that the at least one engagement element (310A, 310B) is movable from the locked position along a plane of movement relative to the second base body (30). Locking device (1) according to claim 8, characterized in that the plane of movement is defined by the engagement direction (Y) and the unlocking direction (B). Locking device (1) according to one of the preceding claims, characterized in that the at least one engagement element (310A, 310B) is arranged slidably or pivotably on the second base body (30). Locking device (1) according to one of the preceding claims, characterized in that the at least one engagement element (310A, 310B) is integrally connected to the second base body (30) via a flexible connecting section (311A, 311B) or that the at least one engagement element (310A, 310B) is pivotally mounted at a bearing point (306A, 306B) of the second base body (30). Locking device (1) according to one of the preceding claims, characterized in that the at least one engagement element (310A, 310B) is spring-loaded via a spring element (314A, 314B) in the direction of the locking position relative to the second base body (30). Locking device (1) according to one of the preceding claims, characterized in that the first locking part (2) has two first engagement sections (310A, 210B) and the second locking part (3) has two engagement elements (310a, 310B) movable relative to the second base body (30), each with a second engagement section (315A, 315B), wherein the first engagement sections (214A, 214B) and the second engagement sections (312A, 312B) are engaged with each other in the closed position. Locking device (1) according to claim 13, characterized in that the engagement elements (310A, 310B) on the second base body (30) are movable towards each other along the unlocking direction (B) in order to disengage the first engagement sections (214A, 214B) and the second engagement sections (315A, 315B) from each other. Locking device (1) according to claim 13 or 14, characterized in that the engagement elements (310A, 310B) are arranged in a mirror-symmetrical manner on the second base body (30). Locking device (1) according to one of the preceding claims, characterized in that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) each form an undercut (210A, 210B, 312A, 312B) with respect to a direction perpendicular to the engagement direction (Y) and the unlocking direction (B). Locking device (1) according to one of the preceding claims, characterized in that the at least one first engagement section (310A, 310B) forms a first contact surface (213) and the at least one second engagement section (315A, 315B) forms a second contact surface (316), wherein the first contact surface (213) and the second contact surface (316) are oriented towards each other in the closed position to block movement in the engagement direction (Y). Locking device (1) according to claim 17, characterized in that the first contact surface (213) and / or the second contact surface (316) are directed perpendicular to the direction of engagement (Y) or at a positive angle or a negative angle oblique to the direction of engagement (Y). Locking device (1) according to one of the preceding claims, characterized in that the first locking part (2) and the second locking part (3) are fixed to each other in a form-locking or force-locking manner by the engagement of the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) against the closing direction (X) and in the engagement direction (Y). A locking device (1) according to one of the preceding claims, characterized in that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) are designed to run into each other when the first locking part (2) and the second locking part (3) are attached, so that the first locking part (2) and the second locking part (3) are displaced relative to each other in a direction opposite to the engagement direction (Y) and thereby the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) are moved past each other. Closure device (1) according to claim 20, characterized in that the at least one first engagement section (214A, 214B) has a first ramp (211A, 211B) and / or the at least one second engagement section (315A, 315B) has a second ramp (313A, 313B) to guide the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) together. Locking device (1) according to claim 20 or 21, characterized in that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B), after they have been moved past each other, can be slid into engagement with each other in the engagement direction (Y). Locking device (1) according to one of the preceding claims, characterized by a locking element (212) which is arranged and configured on one of the first base body (20) and the second base body (30) to lock the engagement of the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) against the engagement direction (Y). Locking device (1) according to claim 23, characterized in that the locking element (212) is elastically deflectable on the first base body (20) of the first locking part (2) or the second base body (30) of the second locking part (3). Locking device (1) according to claim 23 or 24, characterized in that the locking element (212) is movable from a home position when the first locking part (2) and the second locking part (3) are attached to each other, so that the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) can be brought into engagement with each other, and returns to its home position during or after the engagement of the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) in order to lock the engagement of the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) against the direction of engagement. Locking device (1) according to one of claims 23 to 25, characterized in that the other of the first base body (20) and the second base body (30) has a locking section (305) which is configured to cooperate with the locking element (212) to block the engagement of the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B) against the direction of engagement. Locking device (1) according to claim 26, characterized in that the locking section (305) in the closed position engages a section of one of the first base body (20) and the second base body (30), so that the first base body (20) and the second base body (30) are thereby positively locked to each other against the closing direction (X). Locking device (1) according to one of the preceding claims, characterized in that the first base body (20) has a blocking section (206), wherein the second base body (30) engages behind the blocking section (206) in the closed position, so that the first base body (20) and the second base body (30) are thereby positively locked to each other against the closing direction (X). Locking device (1) according to claim 28, characterized in that the second base body (30) is movable in the direction of engagement relative to the blocking section (206) for opening the locking device (1). Locking device (1) according to claim 28 or 29, characterized in that the blocking section (206) is spaced apart from the at least one first engagement section (214A, 214B) when viewed along the direction of engagement. Locking device (1) according to one of the preceding claims, characterized by a locking element (33) which is arranged on one of the first base body (20) and the second base body (30), which assumes a locking position in the closed position and can be moved out of the locking position to open the locking device (1). Locking device (1) according to claim 31, characterized in that the locking element (33) is configured to block, in the locking position, a movement of the at least one engagement element (310A, 310B) relative to the second base body (30) to disengage the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B). Locking device (1) according to claim 32, characterized in that the locking element (33) is movable from the locking position to allow movement of the at least one engagement element (310A, 310B) relative to the second base body (30). Locking device (1) according to one of claims 31 to 33, characterized in that the locking element (33) can be moved out of the locking position in an actuation direction (A) that is in the same direction as the closing direction (X). Locking device (1) according to one of claims 31 to 34, characterized in that the locking element (33) has a locking section (333) for interaction with the at least one engagement element (310A, 310B). Locking device (1) according to claim 35, characterized in that the at least one engagement element (310A, 310B) is configured to slide onto the locking section (333) when the locking element (33) has been moved out of the locking position and the at least one engagement element (310A, 310B) is moved to disengage the at least one first engagement section (214A, 214B) and the at least one second engagement section (315A, 315B), so that the locking element (33) is held in a position moved out of the locking position. Locking device (1) according to one of claims 31 to 36, characterized in that the locking element (33) is elastically movable and connected to one of the first base body (20) and the second base body (30). Locking device (1) according to one of claims 31 to 37, characterized in that the locking element (33) has a first locking section (331) which, in the closed position, interacts with a second locking section (205) on the other of the first base body (20) and the second base body (30) to block a relative movement of the first locking part (2) and the second locking part (3) in the opening direction and / or against the closing direction (X). Locking device (1) according to one of claims 31 to 38, characterized in that the second locking part (3) has two engagement elements (310a, 310B) movable relative to the second base body (30), each with a second engagement section (315A, 315B), which are movable towards each other on the second base body (30) along an unlocking direction (B) in order to disengage the first engagement sections (214A, 214B) and the second engagement sections (315A, 315B) from each other, wherein the locking element (33) is arranged in the locking position along the unlocking direction (B) between the engagement elements (310A, 310B). Locking device (1) according to one of the preceding claims, characterized in that the first base body (20) and the second base body (30) are slidably guided to one another in the opening direction (Y). Locking device (1) according to one of the preceding claims, characterized in that the at least one engagement element (214A, 214B) in the closed position is in contact with at least one surface section (208, 209) of the first base body (20), so that movement of the first locking part (2) and the second locking part (3) relative to each other along the unlocking direction (B) is blocked. Locking device (1) according to one of the preceding claims, characterized in that the first magnetic device (22) and the second magnetic device (32) have an offset to each other in the closed position, viewed along the engagement direction (Y), such that a magnetic attraction force component acts between the first locking part (2) and the second locking part (3) in the engagement direction (Y).

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