Safety lock

Abstract

The proposed solution relates in particular to a locking device (V), for example for a safety lock, comprising: - a first locking part (1) having a first engagement element (12), - a second locking part (2) having a second engagement element (22), wherein, when the second locking part (2) is attached to the first locking part (1), the first and second engagement elements (12, 22) can be brought into engagement with each other. At least one locking element (4, 4A, 4B; 24) is provided on the first or second engagement element (22), which, in a locking position, blocks the connected first and second locking parts (1, 2) from separating from each other.A locking element (3) is provided for locking the at least one locking element (4, 4A, 4B; 24) in the locking position, which is adjustable from a retaining position to a locking position on the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24).The locking element (3) is held in the retaining position before the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24) is attached to the other, first or second locking part (1) on which the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24) is attached, wherein an actuating force (F2) for adjusting the locking element (3) into the locking position can be applied at least partially magnetically via at least one first magnetic element (M1) of the other, second or first locking part (1) and at least one second magnetic element (M2) of the locking element (3), when the first and second engagement elements (12, 22) are at least partially engaged with each other.

Description

[0001] The proposed solution relates to a locking device with a first locking part and a second locking part that can be connected to each other and, in a connected state, are secured against separation from each other by at least one locking element.

[0002] In a proposed locking device, the first locking part has a first engagement element, here in the form of an engagement opening, and the second locking part can be attached to the first locking part along an insertion direction and has a second engagement element that can be inserted into the engagement opening when the second locking part is attached to the first locking part. At least one locking element is provided on the second engagement element, which is adjustable between a release position and a locking position and, in the locking position, blocks the connected first and second locking parts from separating from each other, thus locking the connected first and second locking parts together in their connected state.To lock at least one locking element in the locked position against movement into the release position, a locking element is provided which is adjustably mounted on the second locking part. Such a locking device is known, for example, from WO 2011 / 029582 A1.

[0003] In a locking device with first and second locking parts and a locking element that secures a locking element in its locked position, the challenge regularly arises of making the operation of the locking device as comfortable and intuitive as possible for the user, without compromising the reliable securing of the connected state of the locking parts. In this respect, the proposed solution represents a further improvement.

[0004] In a locking device according to a first aspect of the proposed solution, the first and second locking parts that can be attached to one another have first and second engagement elements that can be brought into engagement with one another. The locking element is provided on the first or second engagement element of the first or second locking part, which has at least one locking element. To lock the at least one locking element in the locked position, the locking element is adjustable from a retained position to a locked position on the first or second locking part, which has at least one locking element. The locking element is held in the retained position on the first or second locking part, which has at least one locking element, before the second locking part is attached to the first locking part, and can only be moved from the retained position towards the locked position by overcoming a retaining force and / or by moving the at least one locking element into the locked position, and an actuating force can be applied at least partially by at least one first magnetic element of the second or first locking part, which does not have the at least one locking element, and at least one second magnetic element of the locking element, wherein the second magnetic element and the first magnetic element interact magnetically to apply the actuating force.when the first and second intervention elements are at least partially engaged with each other.

[0005] The proposed solution is based on the fundamental idea of ​​assigning a defined retaining position to the locking element in the first or second locking part (which has at least one locking element) when the first and second locking parts are unconnected. This ensures that the locking element remains in this retaining position until the first and second locking parts are connected. Only when or after the first and second locking parts are joined should the locking element be allowed to move into the locked position, thus securing a locked state of both locking parts achieved via the at least one locking element. A magnetically controlled movement of the locking element into the locked position, achieved by at least partial engagement of the first and second engagement elements (e.g.,...), is not possible.(triggered by - sufficiently far - insertion of one engagement element into an engagement opening formed by the other engagement element), can therefore only occur when the actuating force, at least partially applied magnetically, exceeds the holding force with which the locking element is held in the holding position and / or the at least one locking element has already released the locking element.

[0006] In other words, a locking device according to the first aspect of the proposed solution includes, in particular, a retaining device that holds the locking element in the retained position on the first or second locking part—which has at least one locking element—before the second locking part is attached to the first locking part, and that prevents the locking element from moving from the retained position toward the locked position until the restoring force is overcome and / or until the at least one locking element is moved into the locked position. Overcoming the retaining force is understood here to mean, in particular, that the applied actuating force exceeds the retaining force at least once, thereby releasing the locking element from a detent and, under the influence of the actuating force, moving the locking element into the locked position.This also means that the restoring force – possibly with varying strength – counteracts the adjustment of the locking element over the entire adjustment range between the holding position and the locking position, but the actuating force exceeds the restoring force over the entire adjustment range and may also be present in the locking position to counteract the locking element moving back from the locking position to the holding position under the influence of the restraint force.

[0007] A proposed locking device may further comprise a magnetically controlled actuating device by which at least part of an actuating force can be applied to the locking element (onto the locking element) by means of at least the first magnetic element of one locking part and the at least one second magnetic element of the locking element, which interacts magnetically with the first magnetic element, by bringing the first and second engagement elements at least partially into engagement with each other. Consequently, for example, simply by bringing the first and second locking parts into contact with each other, an adjustment of the locking element into the locked position can be triggered in order to secure the at least one locking element, once adjusted to its locking position, in the locked position.If necessary, the magnetic force-controlled adjustment of the locking element can also be designed so that at least one locking element can only be moved from its release position to the locking position when one engagement element has been inserted sufficiently far into an engagement opening of the other engagement element.

[0008] In principle, the interaction between the first and second magnetic elements can also support the attachment of the first and second locking parts and / or the interaction between the first and second magnetic elements can enable the first and second locking parts to lock automatically to each other from a predetermined distance.

[0009] The first or second engagement element can, in principle, be designed as an engagement opening into which the other, second or first engagement element can be inserted when the two locking parts are attached. The first and second engagement elements could thus be brought into engagement with each other in the manner of a plug-socket connection, with the engagement opening of one engagement element forming the socket of the plug-socket connection and the other engagement element forming the plug of the plug-socket connection.

[0010] The actuating force can be applied, at least partially, and thus also solely to a degree sufficient for adjusting the locking element, by the at least one first magnetic element and the at least one second magnetic element, by engaging the first and second engagement elements with each other along the insertion direction beyond a predetermined relative position. This is achieved, for example, by inserting one of the engagement elements into an engagement opening of the other engagement element beyond a predetermined relative position. With such a design variant, it is therefore particularly possible that, when the first and second locking parts are sufficiently close to each other and, from a defined minimum engagement depth of one engagement element into an engagement opening of the other engagement element, a magnetically induced adjustment of the locking element towards its actuating position occurs.Thus, closer proximity can lead to an increase in the magnetically applied actuating force. If the increase, and therefore the actuating force, is sufficiently high to overcome the retaining force, and / or if an adjustment of at least one locking element towards its locking position has previously been triggered, the locking element is released for adjustment towards the locking position.

[0011] In one embodiment, the first or second engagement element can be inserted along the insertion direction into an engagement opening formed by the other, second or first, engagement element until it reaches an end position. The actuating force for adjusting the locking element towards the locking position can then be applied by the at least one first magnetic element and the at least one second magnetic element before and / or when the first or second (insertable) engagement element reaches its end position. In the first-mentioned case, the actuating force acting on the locking element to adjust it is therefore applied by the mutually attracting first and second magnetic elements before the first or second engagement element is inserted maximally into the engagement opening and has reached its end position.In the second case mentioned above, the actuating force is applied to the locking element only after the first or second engagement element has already reached its end position and is thus engaging the engagement opening to its maximum extent as intended. This includes, in particular, the possibility that the retaining force is overcome by the applied actuating force (and thus the locking element is moved into the locking position) before or when the first or second engagement element reaches its end position.If the retaining force and the actuating force are adjusted to each other in such a way that the actuating force only overcomes the retaining force in the end position of the first or second (insertable) engagement element, and thus the locking element is only moved into the locking position when this first or second engagement element assumes its end position, the first and second locking parts are engaged, locked together, and the locking mechanism is secured by the locking element sequentially, without the locking element being provided for adjustment before the first and second locking parts are engaged together as intended.

[0012] The retaining force, which acts at least in the holding position and may also continue to act during the adjustment of the locking element towards the locking position, can be applied magnetically and / or by at least one spring element and / or by at least one positive locking mechanism and / or by at least one frictional locking mechanism.

[0013] A retaining force applied by at least one positive locking mechanism and / or at least one frictional locking mechanism can, for example, include the locking element being positively and / or frictionally locked to a rigid section of the first or second locking part, which has at least one locking element, until a sufficiently high actuating force is applied to the locking element to release this locking. For example, a lug or a ridge can be formed on a section of the second locking part, which the locking element can pass when a sufficiently high actuating force is applied. Such a rigid section, like a lug or a ridge, projects, for example, transversely to the direction of application and can be passed when a sufficiently high actuating force acts parallel to the direction of application, so that the locking element can be moved across the rigid section towards its locking position.

[0014] Alternatively or additionally, a positive-locking and / or force-locking mechanism can be provided for the locking element in its retained position on an adjustable, in particular elastically adjustable, section of the first or second locking part, which has at least one locking element. With a sufficiently high actuating force, the corresponding section can be elastically deformed to allow at least part of the locking element to be adjusted across it. If the locking element is held in the retained position alternatively or additionally by the at least one locking element, the at least one locking element has a dual function.On the one hand, at least one locking element is provided for holding the locking element in the retracted position on the first or second locking part, which has at least one locking element, particularly if the first and second locking parts are not connected to each other. On the other hand, the locking element is provided in the locking position for locking the first and second locking parts to each other if the first and second locking parts are connected to each other.

[0015] A magnetically applied retaining force can be generated, at least partially, by the interaction of the at least one second magnetic element of the locking element with at least one third magnetic element of the first or second locking part, which has at least one locking element. This includes, for example, an embodiment in which (when the first and second locking parts are joined) from a predetermined relative position of the first or second engagement element with respect to an engagement opening formed by the other, second or first engagement element, the actuating force generated by the interaction of the at least one first magnetic element with the at least one second magnetic element exceeds the retaining force generated by the at least one spring element and / or by the interaction of the at least one second magnetic element with at least one third magnetic element.The third magnetic element is, for example, provided on the second or first locking part, and its engagement element can be inserted into the other engagement element of the other, first or second locking part, which is designed as an engagement opening. Consequently, if one engagement element has been inserted sufficiently far into the engagement opening, thereby bringing the second magnetic element of the locking element sufficiently close to the first magnetic element, an actuating force applied via the first and second magnetic elements acts on the locking element. This force a) exceeds a spring force that loads the locking element towards the retracted position, and / or b) exceeds a retraction force that is applied via the interaction of at least two other magnetic elements and that loads the locking element into the retracted position.

[0016] A spring force of at least one spring element, which may act directly on the locking element, can be coordinated with the actuating force such that, when the first and second locking parts separate, the locking element is moved into the retaining position if the first and second engagement elements pass the predetermined relative positions opposite to the direction of application. Alternatively or additionally, the second and third magnetic elements can interact magnetically in such a way that, when the first and second locking parts separate, the locking element is moved into the retaining position if the first and second engagement elements pass the predetermined relative position opposite to the direction of application.In both of the aforementioned embodiments, the locking element automatically moves into the retracted position under the influence of spring force and / or the magnetic attraction of the second and third magnetic elements, at the latest when the first and second engagement elements are disengaged beyond their predetermined relative positions in the opposite direction to the initial direction of engagement. Once the relative position is reached, the retaining force applied by the spring and / or magnets exceeds the actuating force applied magnetically by the first and second magnetic elements, causing the locking element to move back into the retracted position. The locking element thus assumes its retracted position and is held there as soon as the first and second locking parts are no longer sufficiently close to each other.

[0017] For the magnetic application of the retaining force (either by repelling at least two magnetic elements or by attracting at least two magnetic elements), the at least one third magnetic element can be arranged in different positions on the first or second locking part, which has at least one locking element. For example, one embodiment provides that, in the retaining position of a locking element provided on the first or second locking part, the at least one third magnetic element on the same first or second locking part is spaced apart from the second magnetic element along the direction of application. Alternatively or in addition to such an offset arrangement of the at least one third magnetic element relative to the second magnetic element of the locking element, it can be provided that the at least one third magnetic element is spaced apart from the second magnetic element transversely to the direction of application.

[0018] To hold the locking element in the release position, particularly when the first and second locking parts are unconnected, and / or to hold the locking element in its retained position via the at least one locking element, the second magnetic element of the locking element can interact magnetically with the at least one locking element in the retained position. The at least one locking element can be made of a ferromagnetic material or have a magnetic element. The magnetic element of the at least one locking element provided on the first or second locking part can, for example, be a third magnetic element, which, in conjunction with the second magnetic element of the locking element, applies the retaining force to hold the locking element in the retained position.

[0019] For example, it is also possible, through a magnetic interaction of the second magnetic element of the locking element with the at least one locking element, to ensure that when the first and second locking parts are separated from each other, the locking element is reset to its retaining position and that the at least one locking element is moved into the release position under the influence of the magnetic attraction of the second magnetic element (and remains magnetically held in the release position).

[0020] One embodiment provides that the at least one locking element can be adjusted into its locking position by adjusting the locking element into its locking position. In this case, adjusting the locking element causes the at least one locking element to be adjusted into its locking position. For this purpose, the locking element has a displacement section, via which, by adjusting the locking element into the locking position, an adjusting force acting transversely to the direction of application can be generated to move the locking element into the locking position. The displacement section can therefore be designed and provided for direct or indirect action on the at least one locking element or on a transmission element in contact with it. The displacement section of the locking element thus pushes the at least one locking element in the direction of its locking position.To apply the adjusting force when adjusting the locking element along the application direction, the displacement section can be designed with a tapered, in particular conically tapered, area in the application direction, so that a continuous adjusting movement of the locking element in the direction of its locking position can be achieved by sliding a section of the locking element or a transmission element in contact with the locking element on this tapered area.

[0021] In one embodiment, the at least one locking element is adjustably mounted, in particular pivotably mounted, on the first or second locking part between the release position and the locking position. For example, the at least one locking element is formed by an adjustable locking ball or a pivotable locking lever. Alternatively, the at least one locking element can be formed by a section of the first or second locking part that is elastically adjustable from the release position to the locking position.

[0022] If an adjustable, in particular pivotably mounted locking element, for example with an adjustable locking lever, and a locking element having a displacement section are combined, an embodiment may provide that when the first and second locking parts are separated from each other by returning the locking element to its retaining position, the displacement section acts on the at least one locking element in order to move the at least one locking element from the locking position to the release position, in particular to pivot it into the release position.Depending on the direction in which the locking element is adjusted, the displacement section can, for example, act on different areas of the at least one locking element to move the at least one locking element either from the release position to the locked position or vice versa. In the case of a pivotable locking element, the displacement section can, for example, act on two different areas of exactly one locking element to pivot the locking element either in one pivot direction around a pivot axis of the locking element or in the other, opposite pivot direction around a pivot axis of the locking element.

[0023] In an alternative embodiment, it can of course also be provided that, when the first and second locking parts are separated by returning the locking element to its retaining position, a section of the locking element different from the displacement section is provided to act on the at least one locking element in order to move the at least one locking element from the locked position to the release position, in particular to pivot it from the locked position to the release position. For pivoting the locking element into the locking position on the one hand and pivoting the locking element back into the release position on the other, different and, in particular, spaced-apart sections can therefore be provided on the locking element.

[0024] In principle, at least one locking element can be at least partially adjustable in its locking position from a bearing opening of the first or second locking part, so that, when the first and second locking parts are connected, it can engage positively with a section of the other, second, or first locking part. Through this positive engagement, the at least one locking element is positively connected in its locking position to the section of the other, second, or first locking part that defines a locking area for the engagement of the locking element. For example, in its locking position, the locking element positively engages in a recess, a groove, a toothed locking surface, or a grooved locking surface of the locking area of ​​the other, second, or first locking part.In its release position, the locking element is preferably located completely or at least with a large part within the bearing opening of the first or second engagement element, so that the insertion of the first or second engagement element into an engagement opening of the other, second or first engagement element is not hindered by the at least one locking element.

[0025] For a more robust locking mechanism between the first and second locking parts, at least two locking elements can be provided on the engagement element. These at least two locking elements can be adjustable from their respective release positions to their respective locking positions with a movement component transverse to the insertion direction. This includes, in particular, a variant in which not only exactly two mutually adjustable locking elements are provided on the first or second engagement element, but also, if necessary, a plurality of locking elements, each of which can be adjusted radially outwards with respect to the insertion direction into its locking position, particularly by displacement by the locking element moved into the locked position.

[0026] In one embodiment, a pivot axis can be defined by two locking elements, each in the locked position (with the first and second locking parts connected to each other), around which the first and second locking parts can pivot relative to each other. Here, the two locking parts are therefore plugged together and, in this connected state, blocked against separation by two locking elements, with the locking element preventing the locking elements from being moved to their respective release positions. Simultaneously, a pivot axis is defined by the locking elements around which the two locking parts can pivot relative to each other.This is particularly possible with locking elements in the form of locking balls, which in their locking position engage positively on the one hand in a bearing opening of one engagement element and on the other hand in a bearing opening on an inner wall of an engagement opening formed by the other engagement element.

[0027] In one embodiment, at least a fourth magnetic element is provided on the first locking part. When the first and second locking parts are joined, this fourth magnetic element interacts magnetically with a magnetic element of the second locking part to ensure a specific orientation of the first and second locking parts relative to each other. Thus, the at least one fourth magnetic element, in conjunction with at least one other magnetic element (for example, a third magnetic element of the second locking part), facilitates the joining of the first and second locking parts and ensures a specific orientation of the locking parts in their connected state.

[0028] The at least one fourth magnetic element is, for example, arranged on a wall of the second closure part, in particular in a wall, which borders an engagement opening formed by the first engagement element transversely to the insertion direction.

[0029] In one embodiment, when the first and second locking parts are connected, the locking element, which is in the locked position, protrudes from the first or second locking part (which has at least one locking element) with an actuating section. This actuating section is then provided for manual intervention by a user to adjust the locking element on the first or second locking part (which has at least one locking element) towards the retracted position.The locking parts can thus be separated from each other via the actuating section projecting from the first or second locking part which has at least one locking element, by a user manually applying force to the actuating section to move the locking element from the locked position towards its retaining position and by releasing the at least one locking element from being locked out of the locked position.

[0030] Alternatively or additionally, the locking element in the locked position, when the first and second locking parts are connected, can define at least one gripping surface for manual operation of the locking element by a user. This gripping surface is designed for a user to grasp with at least one finger in order to move the locking element from the locked position towards the release position by turning, sliding, pushing, and / or pulling on the gripping surface. For this purpose, the at least one gripping surface can be provided on an outer surface of a section of the locking element that borders a receptacle for a component of the first or second locking part, which has the at least one locking element, and in particular, can be laterally limited or circumferentially enclosed.Alternatively, the gripping surface can be provided on an outer surface of a section of the locking element that is accessible at a lateral recess of the first or second locking part having at least one locking element.

[0031] According to a second aspect of the proposed solution, which can readily be combined with an embodiment according to the first aspect explained above, a locking device is proposed comprising a first locking part and a second locking part, wherein the first locking part has a first engagement element and the second locking part has a second engagement element. When the second locking part is attached to the first locking part, the first and second engagement elements can be brought into engagement with each other. At least one locking element, adjustable between a release position and a locking position, is again provided on the first or second engagement element, and in its locking position, this locking element blocks the connected first and second locking parts from separating from each other.To lock the at least one locking element in the locked position against movement into the release position, the locking device again includes a locking element adjustable between a retaining position and a locking position on the first or second locking part, which has the at least one locking element. The locking element now has a display area visible to a user in the retaining position and / or the locking position, by which the user is visually informed whether the locking element is in the retaining position or the locking position.

[0032] The display area allows for a unique visual indication of whether the locking element is in the locked position or not, and thus whether the locking device is in a secure connection state in which the interconnected first and second locking parts are secured via the at least one locking element and this locking is secured via the locking element.In particular, in a design variant in which the locking element is automatically moved into the locked position by the magnetic attraction of a first magnetic element of the first or second locking part (which is not adjustable) and a second magnetic element of the locking element, and the first and second locking parts are attached to each other as intended, it is clearly recognizable to a user via a display area or several display areas of the locking element whether the locking position has been assumed by the locking element and thus whether the locking between the first and second locking parts is not only present but also secured as intended.

[0033] In particular, a display area of ​​the locking element may be formed on or by a gripping surface for manual force application by a user.

[0034] Regardless of the design of the locking device according to any of the aforementioned first and second aspects, the locking device may have an attachment point on the first and / or second locking part for connection to a tensioning element. A flexible tensioning element may be, for example, a webbing strap, a belt, a rope, or a cord. An attachment point for a flexible tensioning element may, for example, be formed by a bridge to which the tensioning element can be secured by deflection.

[0035] For example, a safety closure can be formed using a variant of a proposed fastening device. For instance, a safety closure can be designed for connecting two fastening parts on a garment, an accessory, a bag, a suitcase, a backpack, a piece of furniture, a housing, an assembly on a vehicle, particularly a motor vehicle, bicycle, rail vehicle, or boat (e.g., for attaching a tarpaulin or a convertible top, especially a convertible top, or boat accessories). Other applications are also conceivable and possible.

[0036] The attached figures illustrate possible implementation variants of the proposed solution.

[0037] This shows: Figures 1A-1B are two exploded views from different perspectives of a first embodiment of a proposed locking device in which several locking elements in the form of locking balls are provided; Figure 2A is a side view of the locking device. Figures 1A and 1B when attaching a second locking part to a first locking part of the locking device; Figure 2 Legs Sectional view according to section line AA of the Figure 2A Figure 2C is a perspective view of the locking device of the Figure 2A Figure 2D, the sectional view of the Figure 2B in perspective view; figures 3A-3Din with the Figures 2A to 2D According to concurring views, the locking device with the second locking part is attached to the first locking part, such that an engagement element of the second locking part is partially inserted into an engagement opening on the first locking part; Figures 4A-4Din with the Figures 2A to 2Dand 3A to 3D According to concurring views, the locking device with the second locking part is fully attached to the first locking part, with a locking element on the second locking part still in a retaining position in which the locking element does not yet secure a locking of the first and second locking parts to each other via the locking elements in the form of locking balls, which are radially outwardly adjusted relative to the direction in which the second locking part is attached to the first locking part; Figures 5A-5Din with the Figures 2A to 2D , 3A to 3D and 4A to 4D According to concurring views, the locking device with the locking element in a locked position, in which the locking balls are locked against movement from a locked position via a displacement section of the locking element; Figures 6A-10Din with the Figures 1A to 5D concurring views, a further development of the execution variant of Figures 1A to 5D, in which an additional spring element is provided, by which the locking element is pre-tensioned into its retaining position; Figures 11A-11B two exploded views with different perspectives of a further embodiment of a proposed locking device, in which the locking element defines an annular actuating section with a circumferential gripping surface and with a central receptacle, and in which locking elements are formed by tongues that are elastically displaceable on the second locking part; Figure 12 in perspective view of the locking device of the Figures 11A and 11B when attaching the second locking part to the first locking part; Figure 13A the locking device of the Figure 12 in side view; Figure 13 Legs Sectional view of the locking device along section line AA of the Figure 13A Figure 13C, a perspective view of the sectional representation of the Figure 13B; Figures 14-15Cin with the Figure 12 and 13A to 13C According to concurring views, the locking device of the Figures 12 to 13C with the second locking part attached to the first locking part and with the locking element still in the retained position; Figures 16-17Cin with the Figures 12 to 13C and 14 to 15°C According to concurring views, the locking device of the Figures 12A to 15C with the locking element in the locked position; Figure 18 shows an exploded view of another embodiment of a proposed locking device; Figure 19 shows a side view of the locking device. Figure 18 with a second locking part when attached to a first locking part of the locking device; Figure 19 Legs opposite the Figure 19A Side view of the locking device rotated by 90° Figure 19A Figure 19C shows a sectional view of the locking device along section line AA. Figure 19B ; Figures 20A-20Cin with the Figures 19A to 19CAccording to concurring views, the locking device of the Figures 19A to 19C with the second locking part attached to the first locking part and the locking element still in a retaining position; Figures 21A-21C with the Figures 19A to 19C and 20A to 20C According to concurring views, the locking device of the Figures 19A to 19C and 20A to 20C with the locking element in its actuating position; Figures 22A-22Cin with the Figures 19A to 19C , 20A to 20C and 21A to 21C According to concurring views, the locking device of the Figures 19A to 21C with the second locking part in a position tilted about a pivot axis relative to the second locking part; Figure 22 Your perspective view of the locking device of the Figures 22A to 22C with the second locking part in the position tilted relative to the first locking part; Figure 22E a perspective view of the sectional representation of the Figure 22CFigures 23A-23B: two exploded views from different perspectives of a further embodiment of a proposed locking device, in which locking elements are pivotably mounted in opposite directions on the second locking part, and a locking element is held in the retracted position on the second locking part by two opposing third magnetic elements; Figure 24A: a side view of the locking device Figures 23A and 23B with the second locking part when attached to the first locking part; Figure 24 Legs opposite the Figure 24A Side view rotated by 90° showing the locking mechanism of the Figure 24A Figure 24C shows a sectional view of the locking device along section line AA. Figure 24B Figure 24: Your perspective view of the locking device of the Figure 24A Figure 24E: A perspective view of the sectional representation of the Figure 24 C; Figures 25A-25A with the Figures 24A to 24E According to concurring views, the locking device with the second locking part is attached to the first locking part and with the locking elements still in their respective release positions and the locking element in its retaining position; Figures 26A-26Ein with the Figures 24A to 24E and 25A to 25EIn concurring views, the locking device with the locking element adjusted to its locking position and the locking elements thereby pivoted into their locking positions; Figure 27 an exploded view of a further embodiment of a proposed locking device, in which locking elements pivotably mounted on the second locking part can be pivoted in opposite directions to their locking position under the action of the locking element, wherein in a locking position a locking element engages positively in a toothed or grooved locking area on the first locking part; Figure 28A a sectional view along a section line AA of the locking device of the Figure 28B with the second locking part when attached to the first locking part; Figure 28 Legs Top view of the locking device of the Figure 28Awith representation of the section line AA; Figure 28C a perspective view of the section representation of the Figure 28A Figure 28: Your perspective view of the locking mechanism of the Figures 28A to 28C ; Figures 29A-29Din with the Figures 28A to 28D According to concurring views, the locking device with the second locking part is attached to the first locking part and with the locking element still in the retaining position; Figures 30A-30Din with the Figures 28A to 28D and 29A to 29D According to concurring views, the locking device of the Figures 28A to 29D with the locking element in the locked position and with the locking elements thereby pivoted into their locking positions; Figure 31 a detail of the Figure 30 A according to Detail B on an enlarged scale; Figures 32 to 35 DIN with the Figures 27 to 30D According to concurring opinions, a further development of the locking device of the Figures 27-31, in which the locking elements engage in a recess on the first locking part in their respective locking position in a form-fitting manner.

[0038] The Figures 1A to 5D Figure 1 shows a first embodiment of a locking device V according to the proposed solution, comprising a first locking part 1, which defines an engagement opening 12 as the first engagement element, and a second locking part 2, which can be inserted into the engagement opening 12 with a (second) engagement element 22 to close the locking device V. The closing of the locking device can be assisted by the magnetic attraction of magnetic elements of the first and second locking parts 1, 2, so that the first and second locking parts 1, 2 are automatically connected and locked together when brought into contact with each other from a predetermined distance.

[0039] The first closure part 1 is shown here as an example with a sleeve-shaped body that defines a circular cylindrical access opening 12. This is shown in particular in the exploded views of the Figures 1A and 1B It is evident that the second locking part 2 also has a circular cylindrical body 20, at one (longitudinal) end of which the engagement element 22 is formed. A circumferential bearing section with bearing openings for locking elements 4 – here in the form of locking balls made of a ferromagnetic material – is formed on the engagement element 22. These locking elements 4 are held in a release position on the bearing section 200 by a second magnetic element M2, the second magnetic element M2 being arranged within a displacement section 32 of a locking element 3 of the locking device V.

[0040] The longitudinally extended and essentially pin-shaped locking element 3 is slidably mounted with the displacement section 32 in a central guide 203 of the second locking part 2, which is designed as a guide channel. The guide 203 runs parallel to an engagement direction A, along which the engagement element 22 extends and along which the second locking part 2 can be attached to the first locking part 1 (see in particular Figures 2A to 2D The displacement section 32 is connected via a shaft section 31 to an actuating section 30 of the locking element 3, which is, for example, attached or screwed onto one end of the shaft section 31. In the assembled state of the second locking part 2, the actuating section 32 projects from an upper surface of the second locking part 2, which in this case is defined by a handling section 201 – in this example, a disc-shaped section.

[0041] As particularly evident from the views of the Figures 2A to 2DAs can be seen, the locking element 2 is held in a retained position when the second locking part 2 is disconnected from the first locking part 1. In this position, the second magnetic element M2 in the displacer section 32 magnetically attracts the locking elements 4 arranged circumferentially around the displacer section 32 in the bearing section 200. The individual locking elements 4 each rest against a conically tapered end of a longitudinally extended displacer rib 320 of the displacer section 32, thereby holding the locking element 3 in the retained position shown. In this retained position, the locking element 3 is not displaced relative to the second locking part 2, even when subjected to gravity. If the locking element 3 is manually adjusted on the second locking part 2, it automatically returns to the retained position.This ensures that the locking element 3 for connecting the first and second locking parts 1, 2 is in the retaining position and remains there until the first and second locking parts 1, 2 are to be locked together.

[0042] To connect the first and second locking parts 1, 2 to each other, the engagement element 22 is inserted into the engagement opening 12 along the insertion direction A (see figure). Figures 2A to 2D ). The insertion of the engagement element 22 into the engagement opening 12 is accompanied by an approach of the second magnetic element M2, which is received in the displacement section 32, to a first magnetic element M1 of the first closure part 1, which is arranged in a base of the engagement opening 12 (cf. Figures 3A to 3D ).

[0043] When the engagement element 22 is inserted to its maximum extent into the engagement opening 12, the locking elements 4 engage positively with a locking area 14, which is formed on an inner wall of the first locking part 1 bordering the engagement opening 12 by a circumferential groove. The locking elements 4 are moved radially outwards from their respective bearing openings of the bearing section 200 into a locking position, while remaining positively engaged with the bearing section 200. In this way, the second locking part 2 is locked to the first locking part 1 via the engagement element 22 inserted into the engagement opening 12 by means of the locking elements 4. With the adjustment of the locking elements 4 into their locking position, the locking element 3 is released and no longer prevented from moving within the guide 203.

[0044] When the first magnetic element M1 of the first locking part 1 and the second magnetic element M2 of the locking element 3 interact magnetically, an actuating force F2 acts on the displacer section 32 of the locking element 3 in the intended connected state of the first and second locking parts 1, 2. Under the influence of this actuating force F2, the locking element 3 with the displacer section 32 is moved into a locking position along the direction of application A with respect to the second locking part 2 and the first locking part 1. Through this movement into the locking position, the displacer section 32 acts on the locking elements 4 via its displacer ribs 320, applying radially outward adjusting forces R1, RR2 to the respective locking positions.

[0045] Alternatively, it may also be provided that the actuating force F2 applied by the magnetic attraction of the first and second magnetic elements 1, 2 exceeds a retaining force acting between the locking elements 4 and the second magnetic element M2, with which the locking elements 4 are magnetically held in their release positions. The actuating force F2, which then exceeds this retaining force, adjusts the locking element 3 in the direction of application A and thereby displaces the locking elements 4 radially outwards into their respective locking positions.

[0046] If the locking element 3 is in its locking position according to the Figures 5A to 5DBefore the locking element 32 is engaged, it locks the locking elements 4 against movement from their locked position. The positive locking mechanism between the first and second locking parts 1, 2 via the locking elements 4 is thus secured by the locking element 3, so that without axial movement of the locking element 3, the locking mechanism cannot be released and the locking parts 1, 2 cannot be separated. To separate the two locking parts 1, 2, a user must manually grasp the actuating section 30 of the locking element 3 above the handling section 201 of the second locking part 2 and pull the locking element 3 relative to the second locking part 2 in the opposite direction to the application direction A. The resulting movement of the locking element 32 then occurs against the actuating force F2 applied by the first and second magnetic elements 1, 2.If the locking element 3 is axially adjusted beyond a certain relative position to the second locking part 2, the locking elements 4 are returned to their release positions by the second magnetic element M2, radially inwards, and thereby disengaged from the groove 14 of the first locking part 1. The second locking part 2 can then be removed from the first locking part 1 – in this case also by further pulling on the locking element 3.

[0047] During the further development of the locking device V of the Figures 6A to 10D The locking element 3 differs from the version of the Figures 1A to 5DThe locking element 3 is pre-tensioned into its locking position by a spring element 5. The spring element is designed as a compression spring 5. The compression spring 5 is arranged on the shaft section 31 of the locking element 3 and is supported on one side by an end face of the actuating section 30 facing the displacement section 32 and on the other side by an annular web 32 within the guide 203, which serves as a support section.

[0048] A spring force applied by the compression spring 5 acts as an (additional) restoring force on the locking element 3 to hold the locking element 3 in the retained position on the second locking part 2 when the second locking part 2 is unconnected. The spring force is coordinated with the actuating force F2 applied to the displacement section 32 by the first and second magnetic elements M1 and M2 such that, when the first and second magnetic elements M1 and M2 are sufficiently close to each other, the actuating force F2 exceeds a restoring force, particularly that applied by the compression spring 5. This causes the locking element 3 to be magnetically controlled and moved into its locked position when the first and second locking parts 1 and 2 are connected to each other by inserting the engagement element 22 into the engagement opening 12 (see in particular...). Figures 9A to 9D ).

[0049] Is the locking device V located in the Figures 10A to 10DIn the depicted state, the locking element 3 is held in its locked position by the interaction of the first and second magnetic elements 1, 2. This prevents the locking elements 4 from being moved from their respective locked positions via the displacement section 32 of the locking element 3, until a user moves the locking element 3 in the opposite direction to the application direction A. This movement towards the retaining position of the locking element 3 occurs against the actuating force F2, but is assisted by the action of the relaxing compression spring 3.

[0050] The Figures 11A to 17C Figure 1 shows a further embodiment of a proposed locking device V with a first locking part 1 having an engagement opening 12, and with a second locking part 2 on which a locking element 3 is adjustably mounted. In the embodiment of the Figures 11A to 17CLocking elements 24 are designed as elastically displaceable tongues on an engagement section 22 of the second locking part 2, which can be inserted into the engagement opening 12 to connect the first and second locking parts 1, 2 together.

[0051] In the version of the Figures 11A to 17C according to the exploded views of the Figures 11A and 11B At one end facing away from the engagement element 22, a guide area 202 is formed, which is provided for the axial guidance of the locking element 3 and its radial support in the area of ​​the actuating section 30. At the other end of the body 20 of the second locking part 2, the tongue-shaped locking elements 24 are provided, projecting axially in the insertion direction A, and circumferentially defining a guide 203 designed as a guide channel for a pin-shaped displacement section 32 of the locking element 3.

[0052] At the bottom of the engagement opening 12 of the first locking part 1, a first magnetic element M1 is again arranged in the first locking part 1. The magnetic element M1 is positioned in the direction of the first locking part 1.

[0053] The displacement section 32 projecting from the locking element 3 of the locking part 1 carries a second magnetic element M2, which can interact magnetically with the first magnetic element M1 of the first locking part 1 when the first and second locking parts 1 are sufficiently close to each other along the insertion direction A.

[0054] The actuating section 30 of the locking element 3 is in the version variant of the Figures 11A to 17CThe actuating section 30 is circular in shape and circumferentially surrounds a receptacle 300. A wall of the actuating section 30, which surrounds the receptacle 300, has a circumferential gripping surface 301 on an outer surface, intended for manual engagement by a user. The actuating section 30 is slidably mounted on axially projecting guide webs 2020 of the guide area 202, which are spaced apart from each other in the circumferential direction. Figure 12 In the illustrated assembled state of the second locking part 2, the displacer section 32 is held slidably in the central guide 203 of the second locking part 2.

[0055] A cover element 6 is housed within the receptacle 300 of the actuating section 30. This cover element 6 has a disc-shaped cover section 60, which is visible to a user within the receptacle 300. A support section 61 projects axially from the underside of the cover section 60 towards the displacement section 32 and the locking elements 24. This support section 61 assumes, for example, according to the sectional view of the Figures 13B and 13C , a third magnetic element M3. The cover element 6 is fixed to the guide area 202 via the cover section 60. The third magnetic element M3 of the cover element 6 magnetically attracts the second magnetic element M2 in the displacement section 32, so that a retaining force F1 is applied to the displacement section 32, which holds the locking element 3 in the Figures 12-13 CThe depicted retention position is maintained when the second locking part 2 is not connected to the first locking part 1.

[0056] In the retracted position, the cover section 60 is recessed within the receptacle 300 relative to an upper edge of the actuating section 30. The displacement section 32 is positioned opposite to the insertion direction A (in the Figures 13B and 13C upwards) offset to a tapered end of the guide 203. In this way, the locking elements 24 are each in a release position, unaffected by the displacement section 32, so that the engagement element 22 of the second locking part 2 can be inserted into the engagement opening 12 on the first locking part 1 along the insertion direction A without being affected by the locking elements 24 (see figure). Figures 13A to 13C ).

[0057] If the engagement element 22 is inserted maximally into the engagement opening 12, i.e., in this case until a contact section 302 formed by a shoulder on the outer circumference of the second locking part 2 abuts a handling section 101 defining the upper end of the first locking part 1, the retaining force F1 applied by the second and third magnetic elements M1, M3 is counteracted by an actuating force 2 applied by the first and second magnetic elements M1, M2, which exceeds the retaining force F1 (cf. Figure 14 and 15A to 15CThe actuating force F2, which exceeds the holding force F1, consequently displaces the locking element 3 with its displacement section 32 automatically further in the insertion direction A. This moves the displacement section 32 into its locking position in the tapered end of the guide 203, causing the displacement section 32 to exert radially outward adjusting forces R1, R2 on the locking elements 24. The displacement section 32 thus displaces the circumferentially spaced and elastically displaceable locking elements 24, which are formed on the engagement element 22, radially outward with respect to the insertion direction A. This causes the ends of the locking elements 24 to engage positively with an inner circumferential groove 14 on an inner wall of the engagement opening 12 of the first locking part 1.

[0058] According to the Figure 16 and 17A to 17CUnder the influence of the actuating force F2, the locking element 3 is magnetically held in the locked position and locks the locking elements 24 against any movement from the locked position. The first and second locking parts 1, 2 cannot be separated from each other without moving the locking element 3 in the opposite direction to the insertion direction A.

[0059] In the locked position of the locking element 3, the upper edge of the actuating section 30 is flush or nearly flush with the top surface of the cover section 60 of the cover element 6. The actuating section 30 is therefore adjusted along the guide area 202 in the direction of application A towards the first locking part 1, so that the outer grip area 301 is also close to the first locking part 1. To release the lock via the locking element 3, a user can, for example, manually grasp the grip area 301 with two fingers and the top surface of the cover section 60 with a thumb and thus pull the locking element 3 with one hand against the direction of application A towards the retaining position to open the locking device.This return movement towards the retaining position occurs against the actuating force F2, which is applied by the first and second magnetic elements M1, M2, and is supported by the retaining force F1, which is applied by the second and third magnetic elements M2, M3. From a certain relative position of the displacer section 32 to the first magnetic element 1 of the first locking part 1, and thus from a certain relative position of the locking element 3 with respect to the second locking part 2, the magnetic force ratios change and the retaining force F1 exceeds the actuating force F2, so that the locking element 3 automatically assumes the retaining position and remains held in this position by the second and third magnetic elements M2, M3.

[0060] In principle, however, in the illustrated embodiment, it is also possible for the locking device V to be opened by pulling on the handle area 301 with an opening movement opposite to the application direction A, i.e., the lock is released via the locking element 3, the locking mechanism is released, and the second locking part 2 is pulled away from the first locking part 1. A counter bearing with a thumb on the cover element 6 is therefore not absolutely necessary to open the locking device and separate the two locking parts 1, 2 from each other.

[0061] In the version of the Figures 18 to 22EA first locking element 1 is designed with a U-shaped engagement section, such that the engagement opening 12 is defined between two opposing legs. At an end facing away from the engagement opening 12, the locking element 1 forms a connection area 11 with a deflection bridge for securing a flexible tensioning element, for example in the form of a webbing, a strap, a rope, or a cord. A first magnetic element M1 is again arranged in a base of the U-shape that connects the two legs. A second locking element 2 of the locking device V of the Figures 18 to 22E The device is designed in two parts and comprises a body 20.1 with an engagement element 22 for engagement with the engagement opening 12 of the first locking part 1, and a guide element 20.2. The guide element 20.2 is designed for the slidable guidance of a locking element 3 and is fixed to the body 20.1.

[0062] The guide element 20.2 is provided with a further connection area 21 with a deflection bridge, which is also intended for attaching a flexible traction element, for example in the form of a webbing strap, a belt, a rope or a cord. In this way, two flexible traction elements can be detachably connected to each other using the locking device V.

[0063] As can be seen in particular from the exploded view of the Figure 18As can be seen, in this embodiment, the locking element 3 has a displacement section 32 on which a second magnetic element M2 is again mounted. Two legs project from the displacement section 32 – opposite to the insertion direction A – which together form an actuating section 30 of the locking element 3 and define a receptacle between them for the guide element 20.2 of the second locking part 2. Grip surfaces 301A and 301B are provided on opposite outer sides of the legs of the actuating section 30 for manual operation by a user to move the locking element 3 from its locked position towards its retracted position when the first and second locking parts 1, 2 are engaged and locked together, but need to be separated again.

[0064] To connect and lock the first and second locking parts 1, 2 together, the second locking part 2 is moved along the insertion direction A according to the Figures 19A to 19C The first locking part 1 is attached by inserting the engagement element 22 of the body 20.1 into the engagement opening 12 on the first locking part 2. In the still unconnected state, locking elements 4A, 4B of the locking device V are Figures 18 to 22EThe engagement element 22 is held magnetically in a release position within bearing openings 200A and 200B. The bearing openings 200A and 200B are located on opposite longitudinal sides of the engagement element 22. Exactly two locking elements 4A and 4B are provided, each designed as a locking ball. These locking balls are made of a ferromagnetic material. The second magnetic element M2 in the displacement section 32 of the locking element 3 and the two locking elements 4A and 4B interact magnetically to hold the locking elements 4A and 4B within the bearing openings 200A and 200B in a release position in which the locking elements 4A and 4B do not protrude radially outwards from the bearing openings 200A and 200B with respect to the insertion direction A.On the other hand, the locking element 3 is in the via the magnetic attraction of the locking elements 4A, 4B and the second magnetic element M2 . Figures 19A to 19C The depicted retaining position is maintained in which the displacer section 32 with its tapered end is spaced apart from an axial end of a central guide 203 within the engagement element 22 in the opposite direction to the insertion direction A.

[0065] If the second locking part 2 is inserted into the first locking part 1 along the insertion direction A and the engagement element 22 of the second guide part 2 is received in the engagement opening 12, the engagement element 22 is in a relative position with respect to the first locking part 1 in which the second magnetic element M2 on the displacement section 32 is so close to the first magnetic element M1 of the first locking part 1 that the actuating force F2 resulting from the magnetic attraction of the first and second magnetic elements M1, M2 and acting in the insertion direction A exceeds the retaining force applied by the magnetic attraction of the locking elements 4A, 4B and the second magnetic element M2. Consequently, the locking element 3 is displaced further in the insertion direction A within the guide 203 due to the magnetic force. This causes the displacement section 32 to displace the two locking elements 4A, 4B radially outwards.The two locking elements 4A, 4B are thus subjected to adjusting forces R1 and R2 acting perpendicular to the application direction A and radially outwards, and thereby each enters a locking position in which the locking elements 4A, 4B engage positively both in their associated bearing opening 200A or 200B on the engagement element 22 and in a recess 14A or 14B on the inner wall of the engagement opening 12 (cf. . Figures 20A to 20C and 21A to 21C ).

[0066] Under the action of the first and second magnetic elements 1, 2, the locking element 3 is held in its locked position, in which the locking elements 4A, 4B are locked against adjustment out of the recesses 14A, 14B (cf. Figures 21A to 21CThe locking of the first and second locking parts 1, 2 to each other, provided by the locking elements 4A, 4B, is thus secured by the locking element 3. Only by pulling on the locking element 3 in the opposite direction to the application direction A can the lock be released and thus the locking mechanism disengaged. As shown by the Figure 21A As can be seen, a user can grasp the opposing grip surfaces 301A, 301B with two fingers of one hand or a thumb and a finger and pull on the locking element 3 with a pulling force Z. This allows the locking element 3 to be adjusted relative to the second locking part 2 and the first locking part 1 in the opposite direction to the application direction A, against the actuating force F2, until the lock is released via the displacement section 32 of the locking element 3.

[0067] In the locked position of the first and second locking parts 1, 2, achieved via the locking elements 4A, 4B designed as locking balls, a pivot axis S is additionally defined by the two locking elements 4A, 4B, about which the two locking parts 1, 2 can pivot relative to each other. In this position, the first and second locking parts 1, 2 remain in a connected and locked state, but can be pivoted as shown in the illustrations. Figures 22A to 22E The two locking parts 1 and 2 can be tilted relative to each other about the pivot axis S. This allows the two locking parts 1 and 2 to pivot relative to each other without impairing the positive locking of the two locking parts 1 and 2 against each other, which is secured by the locking element 3.

[0068] In the design variant of a locking device V of the Figures 23A to 26ETwo connecting closure parts 1 and 2 are again provided. The first closure part 1 also has a connection area 11 for a flexible tension member, which is formed by at least one deflecting bridge. Likewise, the second closure part 2 has a connection area 21 for a flexible tension member, so that by connecting the two closure parts 1 and 2, for example, two tension members can be detachably connected to each other.

[0069] The first locking element 1 also forms an engagement opening 12 on a U-shaped section in cross-section, at the base of which a first magnetic element M1 is located. The first magnetic element 1 is arranged within the base of the first locking element 1 via a lateral mounting opening 101. The two opposing legs of the first locking element 1, which each laterally border the engagement opening 12, each carry a fourth magnetic element M4.1 or M4.2 (see in particular the exploded view of the Figures 23A and 23B ).

[0070] The second locking part 2 here has a component body 20 with an engagement element 22 for engagement in the engagement opening 12 of the first locking part 1, which is formed by two interconnected housing parts 25.1 and 25.2. The body 20 thus defines a housing interior in which a locking element 3 is mounted for longitudinal displacement and in which two locking elements 4A, 4B, designed as locking levers, are each pivotably mounted.

[0071] For the longitudinally displaceable mounting of the locking element 3, a cam guide is provided on the body 20. This cam guide comprises at least one, and in the illustrated embodiment two, guide cams 253.1, 253.2 on the body 20, into which a guide section in the form of a guide web 33.1, 253.2 of the locking element 3 slidably engages. The guide cams 253.1 and 253.2 are located on the inner surfaces of the housing parts 25.1 and 253.2 facing each other. In the exemplary T-shaped cross-section of the locking element 3, the guide webs 33.1 and 33.2 are each formed at an intersection point of the two mutually perpendicular sections of the locking element 3.

[0072] For the pivotable mounting of a locking element 4A, 4B, each locking element 4A, 4B has a pivot bearing opening 42A or 42B. A pivot bearing section 250A, 250B of the body 20 engages in the respective pivot bearing opening 42A, 42B, so that the locking element 4A or 4B can pivot within the body 20 about a pivot bearing axis perpendicular to the direction of extension of the guide cams 253.1, 253.2 and thus perpendicular to an adjustment axis of the locking element 3. In this case, a pivot bearing section 250A, 250B is formed by a pivot bearing pin or a pivot bearing sleeve inside the body 2. In the embodiment of the Figures 23A to 26E A swivel bearing section 250A, 250B is each formed by a swivel bearing sleeve on one housing part 25.1, into which a pin of the other housing part 25.2 can be inserted to fix the two housing parts 25.1 and 25.2 together.

[0073] As can be seen in particular from the sectional views of the Figures 24C and 24E As can be seen, two third magnetic elements M3.1 and M3.2 are arranged on the body 20 of the second locking part 2. In the retaining position of the locking element 3, a second magnetic element M2 of the displacer section 32 of the locking element 3 is located between these third magnetic elements M3.1 and M3.2, which are therefore positioned transversely to the application direction A (in the sectional view of the Figure 24C left and right) are arranged offset from the second magnetic element M2. A third magnetic element M3.1, M3.2 and the second magnetic element M2 of the locking element 3 interact magnetically with each other, so that the locking element 3 is thereby held in the position in the Figures 24A to 24E The depicted retention position is held magnetically when the second locking part 2 is not connected to the first locking part 1.

[0074] In the retaining position of the locking element 3, the displacement section 32 acts on actuating sections 43A, 43B of the two locking elements 4A, 4B, such that these are held pivoted towards each other with locking sections 41A, 41B. The locking elements 4A, 4B are thus each in a release position in which the locking sections 41A, 41B do not protrude from bearing openings 200A, 200B on the engagement element 22. The engagement element 22 of the second locking part 2 can therefore be inserted unhindered into the engagement opening 12 on the first locking part 1 to connect the two locking parts 1, 2 together.

[0075] When the two locking parts 1, 2 are brought together along the alignment direction A, a third magnetic element M3.1 or M3.2 interacts magnetically with one of the fourth magnetic elements M4.1 or M4.2 of the first locking part 1. This facilitates the joining of the two locking parts 1, 2 and ensures their alignment in the desired relative position. The third magnetic elements M3.1 and M3.2 on the second locking part 2 are therefore not only intended to hold the locking element 3 in its retracted position, but also, in conjunction with a respective fourth magnetic element M4.1 or M4.2, to assist in joining the two locking parts 1, 2.

[0076] If the engagement element 22 is inserted into the engagement opening 12 on the first locking part 1 as intended, the second magnetic element M2 on the locking element 3 is so close to the first magnetic element M1 of the first locking part 1 that an actuating force F2 resulting from the magnetic attraction of the first and second magnetic elements M1, M2 exceeds a holding force which is applied by the interaction of the second magnetic element M2 with the third magnetic elements M3.1 and M3.2 and which holds the locking element 3 in its holding position (cf. Figures 25A to 25EHere too, magnetic force ratios change in order to achieve, from a predetermined relative position of the engagement element 22 with respect to the engagement opening 12, on the one hand, when connecting the two locking parts 1, 2, an automatic adjustment of the locking element 3 into the locking position and, on the other hand, when separating the two locking parts 1, 2, an automatic adjustment of the locking element 3 into the retaining position.

[0077] Under the influence of the magnetic attraction between the first and second magnetic elements M1 and M2, the locking element 3 is consequently moved into its locking position in the insertion direction A when the locking parts 1 and 2 are connected. This causes the displacement section 32 to act on the locking sections 41A and 41B of the locking elements 4A and 4B on their opposing inner surfaces. Under the influence of the displacement section 32, which is moved into the locking position in the insertion direction A, the two locking elements 4A and 4B are thereby pivoted in opposite directions about the pivot axes defined by the pivot bearing sections 250A and 250B into their locking positions.In each locking position, a locking section 41A or 41B engages positively through the respective bearing opening 200A or 200B on the engagement element 22 into an opposing recess 14A, 14B, which is formed on an inner wall of the first locking part 1 bordering the engagement opening 12. The positive engagement of the locking elements 4A, 4B in the recesses 14A and 14B is secured by the displacement section 32 of the locking element 3, which is held magnetically in the locked position.

[0078] The displacement section 32 is formed on the locking element 3 along a longitudinal section running parallel to the application direction A. Transverse to this longitudinal section, the locking element 3, which in the illustrated embodiment has a T-shaped cross-section, has a transverse section. This transverse section has a gripping surface 301A, 301B on each of its opposite end faces. One gripping surface 301A, 301B is accessible to a user with a finger of one hand via a longitudinal recess in the body 20 of the second locking part 2. In this way, a user can grasp the gripping surfaces 301A, 301B, and thus the two end faces of the transverse section of the locking element 3, to pull the locking element 3 in the opposite direction to the application direction A towards the retaining position when the locking of the two locking parts 1, 2 is to be released.If the locking element 3 has been moved sufficiently far towards the retention position (and, if applicable, the engagement element 22 has already been at least partially displaced from the engagement opening 12), the retention force applied by the first and second magnetic elements M2, M3.1, M3.2 exceeds the actuating force F2 applied by the first and second magnetic elements M1, M2 and acting in the direction of application A. The locking element 3 is then held again in its retention position, in which the displacement section 32 holds the locking elements 4A, 4B in their respective release positions pivoted into a bearing opening 200A and 200B.

[0079] In the embodiments described above, a display area is provided above the handle areas 301, 301A, and 301B. This display area visually indicates to the user of the locking device V whether the locking element 3 is in the retracted or locked position. A corresponding display area 301, 301A, or 301B thus enables a clear indication of whether the locking device V is locked and additionally secured against separation of the first and second locking parts 1 and 2. A safety lock provided by the locking device V is therefore not only easy for the user to operate and provides reliable security between the two locking parts 1 and 2, but also allows the user to immediately see the locked and secured status of the locking device V.

[0080] In the design variants of a locking device V of the Figures 27 to 31 and 32 to 35D In each case, a second locking element 2 is provided, on whose engagement element 22 two locking elements 4A, 4B in the form of locking levers that pivot in opposite directions are provided. The two embodiments differ only in the type of positive engagement of the locking elements 4A, 4B on the first locking element when they are in a locked position.

[0081] On a body 20 forming the engagement element 22 of the second locking part 2, a guide 203 for a slidably mounted locking element 3 is again provided. The guide 203 again defines a cam guide for the slidability of the locking element 3 on the second locking part 2. On opposing inner walls of the guide 3, a guide cam 203.1, 203.2 is formed, into which a guide section, here in the form of a longitudinally extended guide web 33.1 or 33.2 of the locking element 3, slidably engages. At an end of the locking element 3 located in the insertion direction A, a displacement section 32 is provided on the locking element 3, in which a second magnetic element M2 is housed.

[0082] The second magnetic element M2 interacts with a third magnetic element M3.1, M3.2, each of which is provided on a locking element 4A or 4B, when the second locking element 2 is not connected to the first locking element 1. By magnetically attracting each of the third magnetic elements M3.1 and M3.2, the locking elements 4A, 4B, pivotally mounted on a pivot section 250A or 250B, with locking sections 41A and 41B, are magnetically biased radially inwards towards each other and towards the displacement section 32. The locking elements 4A, 4B thus assume a release position in which the locking sections 41A, 41B do not protrude outwards from the bearing openings 200A, 200B on the engagement element 22 of the second locking element. Simultaneously, the locking element 3 is engaged in the magnetic interaction of the second and third magnetic elements M2, M3.1, M3.2. Figures 28A to 28DThe depicted restraint position was maintained.

[0083] When the two locking parts 1, 2 are placed against each other along the insertion direction A, by the engagement element 22 of the second locking part 2 engaging in the engagement opening 12 of the first locking part 1, the following occurs as shown in the illustration. Figures 29A to 29DOnce the first and second magnetic elements M1 and M2 reach a certain relative position of the first and second locking parts 1, 2, they are brought close enough together that the actuating force F2 resulting from the magnetic attraction of the first and second magnetic elements M1, M2 exceeds the retaining force applied by the second and third magnetic elements M2, M3.1, M3.2, which holds the locking element 3 in its retained position. Under the influence of the actuating force F2, the retaining force is overcome once again, so that the locking element 3, with its displacement section 32, is automatically adjusted relative to the second locking part 2 in the direction of application A.The displacement section 32 of the locking element 3 acts internally on an actuating section 43A, 43B of a locking element 4A or 4B through this adjustment, pivoting the respective locking element 4A or 4B with a locking section 41A, 41B radially outwards. Consequently, via the locking element 3, which is axially adjusted along the application direction A in the direction of its locking position, the two locking elements 4A, 4B are each subjected to a radially outward adjusting force R1 or R2, under the effect of which the locking elements 4A, 4B are pivoted outwards in opposite directions relative to each other. This causes the locking sections 41A, 41B to pivot out of a bearing opening 200A, 200B of the engagement element 22 in the direction of a locking position in which a respective locking element 4A or 4B engages positively with the first locking part 1.

[0084] As shown by the Figures 30A to 30D and in particular the enlarged section of the Figure 31 As shown, a locking element 4A or 4B is present in the version variant of the Figures 27 to 31 Each locking section 41A or 41B has a toothed locking surface 410A or 410B. This locking surface 410A or 41B allows the locking section 41A or 41B to engage positively with a toothed locking area 140A or 140B on an inner wall of the engagement opening 12 in the locked position. In this embodiment, the locking positions of the outwardly pivoted locking elements 4A and 4B are also secured by the displacement section 32 against the magnetically held locking element 3.

[0085] At one end of the locking element 3, projecting from the second locking part 2 in the opposite direction to the insertion direction A, a Figures 27 to 31 An operating section not shown may be provided.

[0086] As explained above, the further design variant of a locking device V differs from the Figures 32 to 35D from the variant of the Figures 27 to 31 only with regard to the positive locking connection of the pivotable locking elements 4A and 4B with the first locking part 1.

[0087] The first locking part 1 has a recess 14A or 14B on opposing inner walls of the engagement opening 12, into which a corresponding locking section 41A, 41B of a locking element 4A or 4B engages positively when the respective locking element 4A or 4B is in its locking position when the locking parts 1, 2 are plugged together. The recesses 14A and 14B are shaped on the first locking part 1 such that a respective locking element 4A or 4B with its locking section 41A or 41B engages behind a section of the first locking part 1 adjacent to the respective recess 14A or 14B and can engage therein with variable engagement depth to compensate for play when the displacer section 32 acts on the respective locking element 4A, 4B via a contact surface inclined to the insertion direction A.In the illustrated embodiment of the locking device V, if the locking device V is subjected to a force in the locked state that would separate the two locking parts 1, 2 (if not locked), the positive locking of the two locking parts 1, 2 to each other is self-reinforcing via the first and second locking elements 4A, 4B through the undercut. A corresponding undercut for a self-reinforcing lock under load can also be provided in one of the embodiments of the... Figures 1A to 26E is planned or is already planned here.

[0088] In contrast to the above-explained design variants of the Figures 1A to 35DAt least one locking element and one locking element can also be provided on the closure part whose engagement element forms an engagement opening, i.e., on the closure part 1 with the engagement opening 12. In this case, the at least one locking element, consisting of a wall bordering the engagement opening 12, would be moved radially inwards into a locking position with a movement component relative to the insertion direction A when the first and second closure parts 1, 2 are connected to each other. A locking element on or in the first closure part 1 for locking the locking element in the locking position is then, for example, annular or U-shaped in cross-section and, in its locking position, prevents the locking element from being moved radially outwards.

[0089] In a further training course on the topics in the Figures 1A to 35DIn the illustrated embodiments, a magnetically formed locking element 4, 4A, 4B or 24, i.e., in particular made of a ferromagnetic material or having a magnetic element M3.1, M3.2, can (also) be moved into its locking position with magnetic force assistance and thus brought into a positive locking engagement and / or held magnetically in the locking position (e.g. in the embodiments of Figures 1A to 35D by at least one magnetic element in the first locking part 1).

[0090] In the in the Figures 1A to 35DIn the illustrated embodiments, a locking element 3 is linearly adjustable along an adjustment axis parallel to the insertion direction A and in a closing direction of the locking device V into its locking position. However, this is obviously not mandatory. The locking element can be pivotally mounted or displaceable in another direction without deviating from the basic principle of the proposed solution.

[0091] The above-described embodiments of a locking device V are not to be understood as limiting. The proposed solution is therefore not limited to the illustrated embodiments, but can also be implemented in other ways. In particular, individual features of the above-described embodiments can also be combined with one another.

[0092] A fastening device of the described type can be used to connect any parts together, for example as a safety fastener on a garment, an accessory, a bag, a suitcase, a backpack, a piece of furniture, a housing, an assembly on a vehicle, in particular on a motor vehicle, bicycle, rail vehicle or a boat (e.g. for attaching a tarpaulin or a convertible top, in particular a convertible top or boat accessories). Other applications are also conceivable and possible. Reference symbol list

[0093] 1 First locking part 101 Mounting opening 102 Handling section 11 Connection area 12 Engagement opening 14, 14A, 14B Groove / recess (locking area) 140A, 140B Toothed locking area 2 Second locking part 20, 20.1 Body 20.2 Guide element 200 Bearing section 200A, 200B Bearing opening 201 Handling section 202 Guide area 2020 Guide web 203 Guide 203.1, 203.2 Guide track 21 Connection area 22 Engagement element 23 Web (support section) 24 Locking element 25.1, 25.2 Housing part 250A, 250B Swivel bearing sleeve / pin (swivel bearing section) 253.1, 253.2 Guide track 3 Locking element 30 Actuating section 300 Receptacle 301, 301A, 301B Grip surface / Display area 302 Contact section 31 Shaft section 32 Displacer section 320 Displacer rib 33.1, 33.2 Guide rail (guide section) 4, 4A, 4B Locking element 410A, 410B Locking surface 41A, 41B Locking section 42A, 42B Swivel bearing opening 43A, 43B Actuating section 5 Compression spring (spring element) 6 Cover element 60 Cover section 61 Support section A Application direction F1 Retaining force F2 Actuating force M1 First magnetic element M2 Second magnetic element M3 Third magnetic element M4.1, M4.2 Fourth magnetic element R1, R2 Adjusting force S Swivel axis V Safety lock / locking device Z Tensile force.

Claims

1. A locking device comprising: - a first locking part (1) having a first engagement element (12), - a second locking part (2) which can be attached to the first locking part (1) along an attachment direction (A) to connect the first and second locking parts (1, 2) to each other and has a second engagement element (22), wherein when the second locking part (2) is attached to the first locking part (1), the first and second engagement elements (12, 22) can be brought into engagement with each other, wherein at least one locking element (4, 4A, 4B; 24) is provided on at least one of the first and second engagement elements (12, 22), which is adjustable between a release position and a locking position and, in the locking position, blocks the first and second locking parts (1, 2) connected to each other against separation, wherein for locking the at least one locking element (4, 4A, 4B;24) in the locking position against adjustment to the release position a locking element (3) is provided which is adjustably mounted on the first or second locking part (2) having at least one locking element (4, 4A, 4B; 24), ; characterized by the fact thatthe locking element (3) for locking the at least one locking element (4, 4A, 4B; 24) in the locking position on the first or second locking part (1, 2) having the at least one locking element (4, 4A, 4B; 24) is adjustable from a retaining position to a locking position, wherein - the locking element (3), before the second locking part (2) is attached to the first locking part (1), on which the at least one locking element (4, 4A, 4B;24) having a first or second locking part (2) in the retaining position and can only be moved from the retaining position towards the locking position by overcoming a retaining force (F1) and / or by adjusting the at least one locking element (4, 4A, 4B) into the locking position, and - to adjust the locking element (3) into the locking position, an actuating force (F2) can be applied at least partially by at least one first magnetic element (M1) of the other second or first locking part (1) which does not have at least one locking element (4, 4A, 4B; 24) and at least one second magnetic element (M2) of the locking element (3), wherein the second magnetic element (M2) interacts magnetically attractively with the first magnetic element (M1) for applying the actuating force (F2) when the first and second engagement elements (12, 22) are at least partially engaged with each other.; 2. Locking device according to claim 1, characterized by the fact that the actuating force (F2) can be applied at least partially by the at least one first magnetic element (M1) and the at least one second magnetic element (M2) by engaging the first and second engagement elements (12, 22) along the application direction (A) beyond a predetermined relative position.

3. Locking device according to claim 1 or 2, characterized by the fact thatthe first or second engagement element is designed as an engagement opening (22) into which the other engagement element (12) can be inserted when the second locking part (2) is attached to the first locking part (1) in order to engage the first and second engagement elements (12, 22) with each other, wherein in particular - the first or second engagement element (22) can be inserted into the engagement opening (12) along the insertion direction (A) to an end position and the actuating force (F2) is applied to the locking element (3) by the at least one first magnetic element (M1) and the at least one second magnetic element (M2) before the first or second engagement element (22) assumes the end position,and / or - the first or second engagement element (22) can be inserted into the engagement opening (12) along the insertion direction (A) to an end position and the actuating force (F2) is applied to the locking element (3) by the at least one first magnetic element (M1) and the at least one second magnetic element (M2) when the engagement element (22) assumes the end position, 4. Locking device according to one of the preceding claims, characterized by the fact thatthe retaining force (F1) acting at least in the retaining position is applied magnetically and / or by at least one spring element (5) and / or by at least one positive locking and / or by at least one frictional locking, wherein in particular the magnetically applied retaining force (F1) is applied at least partially by the interaction of the at least one second magnetic element (M2) with at least one third magnetic element (M3, M3.1, M3.2) of the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24).

5. Locking device according to claims 3 and 4, characterized by the fact thatfrom the predetermined relative position of the first or second engagement element (22) with respect to the engagement opening (12), the actuating force (F2) applied via the interaction of the at least one first magnetic element (M1) with the at least one second magnetic element (M2) exceeds the retaining force (F1) applied by the at least one spring element (5) and / or via the interaction of the at least one second magnetic element (M2) with at least one third magnetic element (M3, M3.1, M3.2), wherein in particular a spring force of the at least one spring element (5) is matched to the actuating force (F2) and / or the second and third magnetic elements (M2; M3, M3.1, M3.2)2) interact in such a way that, when the first and second locking parts (1, 2) are separated from each other, the locking element (3) is moved into the retaining position when the engagement element (22) has passed the predetermined relative position opposite to the application direction (A).

6. Locking device according to one of the preceding claims, characterized by the fact thatThe second magnetic element (M2) of the locking element (3) in the retaining position interacts magnetically with the at least one locking element (4, 4A, 4B), wherein in particular - the at least one locking element (4, 4A, 4B) for the magnetically attractive interaction with the second magnetic element (M2) is made of a ferromagnetic material or has a magnetic element (M3.1, M3.2) and / or - when the first and second locking parts (1, 2) are separated from each other by returning the locking element (3) to its retaining position, the at least one locking element (4, 4A, 4B) can be adjusted into the release position under the influence of the magnetic attraction of the second magnetic element (M2).

7. Locking device according to one of the preceding claims, insofar as it relates back to claim 3, characterized by the fact thatthe first or second engagement element (22) can be inserted into the engagement opening (12) along the insertion direction (A) and the at least one locking element (4, 4A, 4B; 24) can be adjusted into its locking position by adjusting the locking element (3) into the locking position, wherein the locking element (3) has a displacement section (32) via which, by adjusting the locking element (3) into the locking position, an adjusting force acting transversely to the insertion direction (A) can be generated for adjusting the locking element (4, 4A, 4B; 24) into the locking position.

8. Locking device according to one of the preceding claims, characterized by the fact thatthe at least one locking element (4, 4A, 4B) is adjustable, in particular pivotably mounted, on the second locking part (2) between the release position and the locking position, or the at least one locking element (24) is formed with a section (24) on the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24) which is elastically adjustable from the release position to the locking position.

9. Locking device according to one of the preceding claims, characterized by the fact thatat least two locking elements (4, 4A, 4B; 24) are provided on the first or second engagement element (22), which are adjustable from the respective release position with a movement component transverse to the insertion direction (A) into the respective locking position, wherein in particular a pivot axis (S) is defined by two locking elements (4A, 4B) each being in the locking position when the first and second locking parts (1, 2) are connected to each other, about which the first and second locking parts (1, 2) can pivot relative to each other.

10. Locking device according to one of the preceding claims, characterized by the fact thatOn the first locking part (1) at least one fourth magnetic element (M4.1, M4.2) is provided, which, when the first and second locking parts (1, 2) are joined to each other, magnetically attracts a magnetic element of the second locking part (2) in order to specify a certain orientation of the first and second locking parts (1, 2) relative to each other for the connection of the first and second locking parts (1, 2), wherein in particular the at least one fourth magnetic element (M4.1, M4.2) is arranged on a wall of the second locking part (2), in particular in a wall which borders the first engagement element (12) transversely to the joining direction (A).

11. Locking device according to one of the preceding claims, characterized by the fact thatIn the connected state of the first and second locking parts (1, 2), the locking element (3) in the locked position - from which the first or second locking part (2) having at least one locking element (4, 4A, 4B; 24) projects an actuating section (30) which is provided for manual attack by a user in order to adjust the locking element on the first or second locking part (2) having at least one locking element (4, 4A, 4B; 24) in the direction of the retaining position, and / or - defines at least one gripping surface (301; 301A, 301B) for manual actuation of the locking element (3) by a user, wherein in particular the at least one gripping surface (301A, 301B) is provided on an outer surface of a section of the locking element (3) which has a receptacle (300) for a component (6, 20).2) of the first or second locking part (2) having at least one locking element (4, 4A, 4B; 24) or which is accessible at a lateral recess of the first or second locking part (2) having at least one locking element (4, 4A, 4B; 24).

12. Locking device, in particular according to one of the preceding claims, comprising: - a first locking part (1) comprising a first engagement element (12), - a second locking part (2) comprising a second locking part (2) which can be attached to the first locking part (1) along an attachment direction (A) to connect the first and second locking parts (1, 2) to each other and comprising a second engagement element (22), wherein when the second locking part (2) is attached to the first locking part (1) the first and second engagement elements (12, 22) can be brought into engagement with each other, wherein at least one locking element (4, 4A, 4B;24) is provided, which is adjustable between a release position and a locking position and, in the locking position, blocks the interconnected first and second locking parts (1, 2) against separation from each other, wherein a locking element (3) is provided for locking the at least one locking element (4, 4A, 4B; 24) in the locking position against adjustment to the release position, which is adjustably mounted on the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24), ; characterized by the fact thatthe locking element (3) for adjusting the at least one locking element (4, 4A, 4B; 24) into the locking position on the first or second locking part (2) having the at least one locking element (4, 4A, 4B; 24) is adjustable from a retaining position to a locking position and on the locking element (3) a display area (301; 301A, 301B) is provided which is visible to a user in the retaining position and / or in the locking position, by means of which the user is visually informed whether the locking element (3) is in the retaining position or the locking position.

13. Locking device according to claim 12, characterized by the fact that The locking element (3) has a display area (301; 301A, 301B) visible to a user in both the retaining position and the locking position, which visually informs the user whether the locking element (3) is in the retaining position or the locking position.

14. Locking device according to one of the preceding claims, characterized by the fact that the locking device (A) has a connection area (11, 21) on the first and / or second locking part (1, 2) for connection with a traction element, in particular a webbing, a strap, a rope or a cord.

15. Safety lock with a locking device (V) according to one of the preceding claims.

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