Closure device having an Anti-rotation device

Abstract

A closure device (1) comprises a first closure part (2), which has a first housing part (20) with an insertion opening (204), a spring locking element (21) provided on the first housing part (20), and a first magnet device (22); and a second closure part (3), which has a second housing part (30), a connecting element (31) that can be moved on the second housing part (30) along a closing direction (X), and a second magnet device (32). In order to connect the first closure part (2) and the second closure part (3), the connecting element (31) can be inserted into the insertion opening (204) along the closing direction (X) and can be locked in the insertion opening (204) by means of the spring locking element (21). An anti-rotation device (4) has at least one engagement element (40) and at least one engagement opening (44), said at least one engagement element (40) being designed to come into engagement with the at least one engagement opening (44) in a specified rotational position of the first closure part (2) and the second closure part (3) relative to each other.

Description

[0001] Locking device with an anti-rotation device

[0002] Description

[0003] The invention relates to a closure device according to the preamble of claim 1.

[0004] Such a closure device comprises a first closure part, which has a first housing part with an insertion opening, a spring locking element arranged on the first housing part, and a first magnetic device, and a second closure part, which has a second housing part, a connecting element movable on the second housing part along a closing direction, and a second magnetic device. To connect the first closure part and the second closure part, the connecting element can be inserted into the insertion opening along the closing direction and can be locked in the insertion opening with the spring locking element. To separate the first closure part and the second closure part, the connecting element can be moved out of the insertion opening along an opening direction different from the closing direction and can be separated from the spring locking element.The first magnetic device and the second magnetic device interact in a magnetically attractive manner to connect the first closure part and the second closure part.

[0005] In a closure device known from DE 10 2013 203 440 A1, closure parts can be attached to one another along a closing direction. A first closure part has a spring locking element. A connecting element on a second closure part is movable along a closing direction. The closure parts interact magnetically, so that the attachment of the closure parts to one another is magnetically assisted.

[0006] The object of the present invention is to provide a closure device which enables a secure, defined hold of the closure parts to one another in a closed position of the closure device, while being comfortable to handle by a user.

[0007] This object is achieved by an article having the features of claim 1.

[0008] Accordingly, the closure device comprises an anti-rotation device having at least one engagement element movably arranged on one of the first closure part and the second closure part, and at least one engagement opening arranged on the other of the first closure part and the second closure part. The at least one engagement element is designed to engage with the at least one engagement opening in a predetermined rotational position of the first closure part and the second closure part relative to one another. By the engagement of the at least one engagement element with at least its own engagement opening, the first closure part and the second closure part are secured against rotation about the closing direction from the predetermined rotational position.

[0009] The closure device comprises two closure parts, each of which has a magnetic device and thus interacts magnetically in such a way that the engagement of the closure parts to close the closure device is magnetically assisted. A first closure part has a spring locking element on a first housing part. A second closure part, in contrast, has a connecting element movable along a closing direction on an associated second housing part.

[0010] The connecting element, for example, protrudes outwards from the second housing part in an extended position. In a retracted position, however, the connecting element can be fully or partially retracted into the second housing part so that the connecting element does not protrude from the second housing part or protrudes only slightly and is therefore not a hindrance when the closure device is open. To close the closure device, the connecting element can be brought into engagement with an insertion opening in the first housing part. The spring locking element of the first closure part is arranged in the region of the insertion opening on the first housing part so that by inserting it into the insertion opening, the connecting element can be connected to the spring locking element in order to secure the closure parts to one another.

[0011] To open the closure device, the closure parts can be moved relative to each other along an opening direction that differs from the closing direction, so that the connecting element is displaced along the opening direction out of the area of ​​the insertion opening. The opening direction differs from the closing direction. In this case, this means that the opening direction is directed transversely or obliquely to the closing direction, but not parallel or antiparallel (opposite) to the closing direction.

[0012] The connecting element can, for example, be pin-shaped and approximately rotationally symmetrical. With such a shape of the connecting element, it is fundamentally conceivable for the closure parts to be rotatable relative to one another in the connected position. Such rotatability allows, on the one hand, the closure parts to be positioned in any rotational position relative to one another, making closing the closure device simple and convenient for the user. On the other hand, it may be desirable for the closure parts to be clearly fixed to one another in the connected position in order to provide a defined hold between the closure parts and the assemblies associated with the closure parts.

[0013] For this reason, the closure device has the anti-rotation device which has at least one engagement element which, in a predetermined rotational position of the first closure part and the second closure part relative to one another, is in engagement with at least one engagement opening and thus fixes the closure parts to one another in a rotationally secured manner in the predetermined rotational position.

[0014] The at least one engagement element is arranged on the first closure part or on the second closure part. The at least one engagement opening is arranged accordingly on the other closure part, i.e. on the second closure part (if the at least one engagement element is arranged on the first closure part) or on the first closure part (if the at least one engagement element is arranged on the second closure part). The at least one engagement element is movable on the associated closure part and, when the closure parts are placed against one another and are in the predetermined rotational position relative to one another, engages with the at least one engagement opening.

[0015] The closure device can, in particular, be designed such that the connection between the connecting element and the spring locking element can be established even if the at least one engagement element of the anti-rotation device is not (yet) engaged with the at least one engagement opening. The closure parts can thus (initially) be placed against one another in any desired rotational position, establishing a connection between the connecting element and the spring locking element.The closure parts can then be rotated into the predetermined rotational position, so that in the predetermined rotational position the at least one engagement element engages with the at least one engagement opening and thus the connection of the closure parts is secured against rotation in this predetermined rotational position, so that the closure parts cannot be easily rotated out of the predetermined rotational position, at least not without removing the engagement of the at least one engagement element with the at least one engagement opening.

[0016] Such a locking device can be used, for example, to connect an electronic device to an associated assembly, such as a vehicle, such as a bicycle or a motor vehicle. For example, such a locking device can be used to secure a mobile phone to the dashboard of a car.

[0017] However, such a locking device can in principle be used in any way to detachably connect any number of assemblies via the locking parts.

[0018] In one embodiment, the at least one engagement element is arranged on one of the first closure part and the second closure part so as to be movable along the closing direction. The engagement element can thus be moved along the closing direction on the associated closure part. Due to the mobility of the engagement element, a connection between the connecting element and the spring locking element can initially be established without the at least one engagement element already coming into engagement with the at least one engagement opening. Instead, the at least one engagement element can (initially) give way when the closure parts are placed against one another until the correct rotational position is reached, in which the at least one engagement element then comes into engagement with the at least one engagement opening, for example due to the effect of a spring preload or due to the effect of a magnetic force.

[0019] The at least one engagement element can be movable along the closing direction on the associated closure part. However, it is also conceivable and possible for the engagement element to be movable along a different direction, for example, transversely to the closing direction, on the associated closure part.

[0020] In one embodiment, the first housing part forms a first attachment surface and the second housing part forms a second attachment surface, which can be attached to one another to connect the first closure part and the second closure part. The respective attachment surface can, for example, extend perpendicular to the closing direction. The insertion opening is formed, for example, on the first attachment surface of the first closure part, so that by attaching the closure parts to one another along the closing direction, the connecting element can be inserted into the insertion opening on the first attachment surface in order to establish a connection between the connecting element and the spring locking element arranged in the region of the insertion opening on the first housing part of the first closure part.

[0021] However, an attachment surface can also be aligned differently and, for example, be formed by a surface on the first housing part or the second housing part, which is aligned with a surface normal perpendicular or obliquely to the closing direction.

[0022] In one embodiment, the at least one engagement element protrudes in a functional position relative to the attachment surface of one of the first closure part and the second closure part. The at least one engagement element is movable on the associated closure part. In a functional position, the engagement element protrudes relative to the attachment surface of the respective closure part and can thus be brought into engagement with an associated engagement opening on the other closure part. The engagement element can be moved out of the functional position, for example by pressing the engagement element into the housing part of the associated closure part, so that the engagement element can yield and does not hinder the attachment of the closure parts to one another in a rotational position other than the predetermined rotational position.This makes it possible, in particular, for the connection between the connecting element and the spring locking element to be established in any desired rotational position of the closure parts relative to one another, wherein, when the connection between the connecting element and the spring locking element is established, the closure parts can be rotated relative to one another, so that when the predetermined rotational position is reached, the at least one engagement element engages with the at least one engagement opening and thus the rotational position then reached is secured in its rotational position.

[0023] If the contact surface is oriented perpendicular to the closing direction, i.e., if the surface normal of the contact surface is aligned in the same direction as the closing direction, the engagement element protrudes relative to the contact surface along the closing direction. If, on the other hand, the contact surface with its surface normal is oriented obliquely or transversely to the closing direction, the engagement element protrudes relative to the contact surface along the surface normal when the engagement element is in the functional position.

[0024] In one embodiment, the at least one engagement opening is formed on the attachment surface of the other of the first closure part and the second closure part. The at least one engagement element engages with the at least one engagement opening when the closure parts are connected to one another and arranged in the predetermined rotational position relative to one another, so that the closure parts are mechanically firmly connected to one another due to the connection of the connecting element to the spring locking element and are also secured in their rotational position relative to one another, so that the closure parts cannot be rotated relative to one another.

[0025] In one embodiment, the at least one engagement element can be moved out of the functional position in order to release the engagement of the at least one engagement element with the at least one engagement opening. The at least one engagement element can thus be moved out of the functional position. By moving the engagement element on the associated closure part, the rotation lock can be removed, so that the closure parts can be rotated relative to one another and, if necessary, the closure device can also be opened by moving the closure parts relative to one another along the opening direction.

[0026] In one embodiment, the anti-rotation device has an actuating section connected to the at least one engagement element and operable by a user for moving the at least one engagement element out of the functional position. The actuating section can be fixedly or movably connected to the at least one engagement element.

[0027] For example, the actuating portion is formed integrally and in one piece with the at least one engagement element. The actuating portion can be actuated by a user to thereby move the engagement element on the associated closure part and move it out of the functional position to release the engagement with the at least one engagement opening.

[0028] If the actuating section is movably connected to the at least one engagement element, the actuating section can be configured, for example, as a slide or a lever element that is adjustable, for example, on the closure part on which the at least one engagement element is also arranged. By actuating the actuating section, the engagement element can be moved, in particular, out of the functional position and thus out of engagement with the associated engagement opening.

[0029] In one embodiment, the at least one engagement opening has a ramp extending obliquely to the opening direction, onto which ramp the at least one engagement element runs when the connecting element moves along the opening direction to separate the first closure part and the second closure part, in order to thereby adjust the at least one engagement element out of the functional position. The at least one engagement opening is shaped, for example, as a recess on the base surface. A ramp onto which the engagement element can run is formed on a surrounding wall of the at least one engagement opening. The ramp is in particular shaped and aligned such that when the connecting element is moved relative to the spring locking element along the opening direction, the at least one engagement element runs onto the ramp and is thus automatically adjusted out of the functional position.The engagement of the at least one engagement element with the at least one engagement opening does not therefore prevent an opening process, but is automatically canceled when the closure device is opened by relative movement of the closure parts to one another. The engagement of the at least one engagement element with the at least one engagement opening serves in this case (exclusively) to secure the rotational position of the closure parts relative to one another. In one embodiment, the at least one engagement element can be elastically moved out of the functional position. For this purpose, the engagement element can be arranged on the associated closure part in an elastically adjustable manner. For example, the engagement element can be inherently elastically resilient, for example by the engagement element being formed by an elastic spring tongue that can be deflected out of the functional position.In other embodiments, the engagement element is elastically loaded and elastically adjustable via a separate spring element.

[0030] In one embodiment, the anti-rotation device has at least one spring element. The at least one engagement element is resiliently loaded by the spring element in the direction of the functional position. The spring element, in particular, provides a preload between the at least one engagement element and the housing part of the associated closure part. The spring element preloads the at least one engagement element in the direction of the functional position. Counter to the preload of the spring element, the at least one engagement element can, for example, be pressed into the housing part of the associated closure part in order to thereby enable the engagement element to deflect or to release the engagement of the engagement element with the associated engagement opening.

[0031] Additionally or alternatively, the at least one engagement element can be magnetically loaded in the direction of the functional position.

[0032] For this purpose, the anti-rotation device can, for example, have a third magnetic device that is arranged on the other of the first closure part and the second closure part and is designed to load the at least one engagement element in the direction of the functional position. The at least one engagement element is arranged on one of the closure parts. The third magnetic device, in contrast, is arranged on the other of the closure parts. The engagement element is magnetically designed such that the third magnetic device magnetically interacts with the engagement element, so that the engagement element is magnetically loaded by the third magnetic device in the direction of engagement with the associated engagement opening, in particular when the closure parts are in the predetermined rotational position relative to one another.

[0033] In particular, the third magnetic device can be arranged in the region of the at least one engagement opening and configured to draw the at least one engagement element into engagement with the at least one engagement opening when the first closure part and the second closure part are in the predetermined rotational position relative to one another. For example, the third magnetic device is arranged in the region of a base of the at least one engagement opening, viewed along the closing direction, in such a way that the third magnetic device interacts in a magnetically attractive manner with the at least one engagement element when the closure parts are in the predetermined rotational position relative to one another, and exerts a magnetic force of attraction on the at least one engagement element, thus drawing the at least one engagement element into engagement with the at least one engagement opening.The engagement between the engagement element and the associated engagement opening is thus automatically established by magnetic interaction when the closure parts are in the predetermined rotational position relative to each other.

[0034] In one embodiment, the at least one engagement element is magnetically configured or has a fourth magnetic device configured to interact with the third magnetic device in a magnetically attractive manner. The at least one engagement element can be formed entirely from a magnetically active material, for example, a passively magnetic material, for example, a ferromagnetic material. In another embodiment, a (separate) magnetic device, for example, a passively magnetic element or a permanent magnet, can be accommodated on the at least one engagement element.

[0035] The third magnetic device is preferably formed by a permanent magnet to interact with the at least one engagement element in a magnetically attractive manner. However, the third magnetic device can also be formed by a passive magnetic element, for example, a ferromagnetic armature, if the fourth magnetic device on the at least one engagement element is formed by a permanent magnet.

[0036] In one embodiment, the anti-rotation device comprises an operating element movably arranged on the other of the first closure part and the second closure part, on which the third magnetic device is arranged (directly or indirectly). The operating element is movable on the housing part of the associated closure part such that the third magnetic device can be moved together with the operating element, for example, out of the region of the engagement opening, in order to thereby remove the third magnetic device from the at least one engagement element and thus weaken a magnetic attraction between the third magnetic device and the at least one engagement element or even reverse it into a magnetic repulsion.

[0037] The operating element can be movable on the housing part of the associated closure part, in particular along an actuation direction which is directed obliquely or perpendicularly to the closing direction.

[0038] The third magnetic device can be arranged directly on the control element by being firmly connected to the control element and thus moving together with the control element when the control element is adjusted. However, the third magnetic device can also be indirectly coupled to the control element, for example, via a lever mechanism or other coupling device, so that when the control element is actuated, the third magnetic device moves along with the center mark.

[0039] In one embodiment, the anti-rotation device comprises an engagement element which is arranged centrally on one of the first closure part and the second closure part with respect to a transverse direction perpendicular to the opening direction and the closing direction, wherein an engagement opening is arranged centrally on the other of the first closure part and the second closure part. For example, the anti-rotation device comprises exactly one engagement element and exactly one engagement opening, which are each arranged centrally, with respect to the transverse direction, on the respectively associated closure part. In other embodiments, the anti-rotation device comprises a plurality of engagement elements and a plurality of engagement openings, wherein an engagement element of the plurality of engagement elements and an engagement opening of the plurality of engagement openings are each arranged centrally, with respect to the transverse direction, on the respectively associated closure part.

[0040] The engagement element and the engagement opening can, for example, be arranged behind the insertion opening or behind the connecting element on the respectively associated closure part with respect to the opening direction.

[0041] In one embodiment, the second magnetic device of the second closure part is arranged on the connecting element and is movable together with the connecting element along the closing direction relative to the second housing part. Because the second magnetic device is arranged on the connecting element and interacts with the first magnetic device of the first closure part in a magnetically attractive manner when the closure parts are placed against one another, the connecting element is adjusted relative to the second housing part of the second closure part when the closure parts approach one another along the closing direction and thus reaches a position in which the connecting element of the second closure part can be brought into engagement with the spring locking element of the first closure part in order to connect the closure parts to one another.

[0042] When the closure device is opened by separating the closure parts from one another, the connecting element preferably assumes a position on the second housing part of the second closure part in which the connecting element is completely or partially recessed into the second housing part of the second closure part. For example, the second closure part has a further magnetic device that interacts in a magnetically attractive manner with the second magnetic device of the connecting element and magnetically biases the connecting element toward the recessed position.

[0043] The first magnetic device of the first closure part and the second magnetic device of the second closure part can each be formed, for example, by a permanent magnet, wherein the permanent magnets point toward each other with opposite poles and thus interact in a magnetically attractive manner when the closure parts are placed against each other along the closing direction. In another embodiment, one of the magnetic devices can also be formed by a permanent magnet and the other of the magnetic devices by a passive magnetic armature, in particular a ferromagnetic armature.

[0044] If the magnetic devices are formed by permanent magnets, each magnetic device can have one or more magnetic poles that point towards the other closure part.

[0045] In one embodiment, the second housing part has a guide device for guiding the connecting element relative to the second housing part along a movement path. For example, the guide device guides the connecting element along a screw line pointing around the closing direction in such a way that rotation of the connecting element around the closing direction is accompanied by a movement of the connecting element relative to the second housing part along the closing direction. The connecting element is thus not only linearly movable along the closing direction on the second housing part, but is guided relative to the second housing part via the guide device. The guide device predetermines a movement path that points, for example, along a screw line.By screwing the connecting element relative to the guide device, the connecting element is (also) moved linearly along the closing direction relative to the housing part and thus adjusted between an extended and a retracted position relative to the housing part.

[0046] One advantage of such a helical guide is that the connecting element cannot tilt in the second housing section, thus preventing the connecting element from jamming in the housing section. When engaged, it can absorb lateral shear forces much more effectively without significant tilting. A further advantage is that the assembly can be constructed with a significantly smaller diameter compared to a purely cylindrical guide.

[0047] In one embodiment, the spring locking element has a first latching projection and the connecting element has a second latching projection. When the first closure part and the second closure part are in a connected position, the first latching projection and the second latching projection engage with one another in a latching manner. The spring locking element can, for example, be designed as a spring-elastic element that forms a C-shape and, in the connected position, encompasses the connecting element in the closing direction. One or more latching projections are formed on the spring locking element, which, in the closed position, engage with one or more latching projections on the connecting element, such that a positive connection is created between the connecting element and the spring locking element and the closure parts are thus mechanically held together in the connected position.

[0048] The spring locking element is preferably expandable in a plane perpendicular to the closing direction, such that the connecting element can be brought into engagement with the spring locking element along the closing direction while spreading the spring locking element. The spring locking element is laterally open in the opening direction, such that the connecting element can be pushed out of engagement with the spring locking element by movement in the opening direction. In one embodiment, the first closure part has a first mounting part, wherein the first housing part and the first mounting part are connected to one another in a first operating position via a bayonet connection. Additionally or alternatively, the second closure part has a second mounting part, wherein the second housing part and the second mounting part are connected to one another in a second operating position via a bayonet connection.The respective assembly part can, for example, be assigned to a higher-level assembly. The fact that the respective housing part can be easily mounted to the assembly part by establishing a bayonet connection results in simple, cost-effective assembly, with the option of replacing components of the locking device in the event of a failure.

[0049] In particular, the first housing part has a first locking section and the first mounting part has a second locking section, which can be brought into engagement with one another by rotating the first housing part and the first mounting part about the closing direction and are engaged with one another in the first operating position. Additionally or alternatively, the second housing part has a third locking section and the second mounting part has a fourth locking section, which can be brought into engagement with one another by rotating the second housing part and the second mounting part about the closing direction and are engaged with one another in the second operating position. If the respective housing part is to be mounted on the associated mounting part, the housing part is placed on the mounting part and rotated relative to the mounting part such that the locking sections engage with one another.In the assigned operating position, the housing part and the mounting part are then firmly mounted to each other.

[0050] For example, the first locking section protrudes radially outwards on the first housing part. The second locking section, in contrast, protrudes radially inwards on the first mounting part. Additionally or alternatively, the third locking section protrudes radially outwards on the second housing part. The fourth locking section, in contrast, protrudes radially inwards on the second mounting part. The respective housing part can, for example, have a circular outer contour (viewed in a cross-sectional plane perpendicular to the closing direction). One or more locking sections can be formed as outwardly projecting projections, for example arcuate webs, on the housing part. The mounting part, in contrast, can, for example, have the shape of a circular ring into which the housing part can be inserted for assembly.One or more locking sections protrude radially inwards on the mounting part and can be brought into engagement with the locking sections of the associated housing part for assembly.

[0051] In one embodiment, the first housing part and the first mounting part are secured against rotation relative to one another in the first operating position by a first rotation lock. Additionally or alternatively, the second housing part and the second mounting part are secured against rotation relative to one another in the operating position by a second rotation lock. Such a rotation lock can, for example, have a locking part that can be elastically adjusted out of a locked position.

[0052] The locking part is, for example, movably mounted on the respective associated housing part. In the operating position, the locking part engages with an associated locking opening on the associated mounting part, thereby preventing rotation between the housing part and the mounting part.

[0053] The locking part can be formed, for example, by a magnetically active element, for example a magnetic plate element, which is designed to cooperate with the at least one engagement element on the respective housing part in order to prestress the at least one engagement element in the direction of a countersunk position on the housing part.

[0054] In one embodiment, the first housing part and / or the second housing part have at least one tool opening for inserting a tool for establishing the bayonet connection, wherein the at least one tool opening forms a guide opening for the at least one engagement element or the at least one engagement opening. In order to rotate the respective housing part relative to the associated mounting part to establish the bayonet connection, the housing part can be engaged using a tool. One or more engagement points for the tool can be created by one or more guide openings in which one or more engagement elements of the anti-rotation device are guided, or one or more engagement openings of the anti-rotation device.Openings that are (already) provided for the anti-rotation device thus also serve as a tool opening for attaching a tool for mounting the housing part on the associated mounting part. In one embodiment, a rotation lock, by means of which the first housing part and the first mounting part are secured against rotation relative to one another in the first operating position or the second housing part and the second mounting part are secured against rotation relative to one another in the second operating position, can be unlocked via the at least one tool opening. For example, by inserting a tool into the at least one tool opening, a locking part of the rotation lock can be acted upon in order to adjust the locking part out of a locked position. The tool can thus unlock the rotation lock in order to enable the respective housing part and the associated mounting part to be rotated out of the operating position and thus to disassemble the housing part from the mounting part.

[0055] The locking part can, for example, be arranged on the second housing part with a spring preload toward the locking position. By acting on the tool, the locking part can be moved out of the locking position, for example, against the spring preload of a spring element.

[0056] When the respective operating position is established, i.e. when the respective housing part is rotated relative to the associated mounting part to establish the bayonet connection, the locking part automatically snaps into engagement with an associated locking opening on the mounting part, so that a rotation lock between the housing part and the mounting part is automatically established when the bayonet connection is established.

[0057] The concept underlying the invention will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. They show:

[0058] Fig. 1 is an exploded view of an embodiment of a closure device;

[0059] Fig. 2A is a view of the closure device in an open position;

[0060] Fig. 2B is a partial sectional view of the arrangement according to Fig. 2A;

[0061] Fig. 3A shows another view of the closure device in the open position;

[0062] Fig. 3B is a partial sectional view of the arrangement according to Fig. 3A; Fig. 4 is an exploded view of another embodiment of a closure device;

[0063] Fig. 5A is a view of the closure device in an open position;

[0064] Fig. 5B is a partial sectional view of the arrangement according to Fig. 5A;

[0065] Fig. 6A is another view of the closure device in the open position;

[0066] Fig. 6B is a partial sectional view of the arrangement according to Fig. 6A;

[0067] Fig. 7 is an exploded view of yet another embodiment of a closure device;

[0068] Fig. 8A is a view of the closure device in an open position;

[0069] Fig. 8B is a partial sectional view of the arrangement according to Fig. 8A;

[0070] Fig. 9A is another view of the closure device in the open position;

[0071] Fig. 9B is a partial sectional view of the arrangement according to Fig. 9A;

[0072] Fig. 10 is an exploded view of yet another embodiment of a closure device;

[0073] Fig. 11 A is a view of the closure device in an open position;

[0074] Fig. 11 B is a partial sectional view of the arrangement according to Fig. 11 A;

[0075] Fig. 12A is another view of the closure device in the open position;

[0076] Fig. 12B is a partial sectional view of the arrangement according to Fig. 12A;

[0077] Fig. 13 is a sectional view through a second housing part accommodated in a mounting part; Figs. 14A, 14B are exploded views of another embodiment of a closure device;

[0078] Fig. 15A is a view of the closure device in an open position;

[0079] Fig. 15B is a perspective cross-sectional view of the arrangement according to Fig. 15A;

[0080] Fig. 16A is another view of the closure device in the open position;

[0081] Fig. 16B is a perspective cross-sectional view of the arrangement according to Fig. 16A;

[0082] Fig. 17 is a view of the locking device in the open position;

[0083] Fig. 18 is a view of the locking device when the locking parts are placed against each other, with the connecting element extended;

[0084] Fig. 19 is a plan view of one closure part of the closure device;

[0085] Fig. 20 is a plan view of the other closure part of the closure device;

[0086] Fig. 21 is a view of the locking device in the open position;

[0087] Fig. 22A is a plan view of the closure device in a closed position; and

[0088] Fig. 22B is a sectional view taken along line AA of Fig. 22A.

[0089] Figs. 1 to 3A, 3B show an embodiment of a closure device 1 comprising a first closure part 2 and a second closure part 3. The closure parts 2, 3 can be placed against one another along a closing direction X and are mechanically firmly connected to one another in a connected position.

[0090] The first closure part 2 has a first housing part 20, which forms a receiving opening 200 in which a spring locking element 21 is received. The rear of the housing part 20 is closed by a housing cover 201, on which a first magnetic device 22 in the form of a permanent magnet is arranged centrally. In the illustrated embodiment, the spring locking element 21 is formed by a C-ring having an arrangement of radially inwardly projecting locking projections 210.

[0091] As can be seen from Figs. 3A and 3B, the housing part 20 forms an attachment surface 202 oriented perpendicular to the closing direction X and on which an insertion opening 204 is formed, in the region of which the spring locking element 21 is arranged. In an opening direction Y, the insertion opening 204 is laterally opened by an exit opening 203, so that the insertion opening 204 is not circumferentially closed (with respect to the closing direction X).

[0092] The second closure part 3 has a housing part 30 forming a receiving chamber 301 in which a connecting element 31 is received. The connecting element 31 has a second magnetic device 32 formed by a permanent magnet. The receiving chamber 301 is closed at the rear by a cover element 303, on which a third magnetic device 33, for example, formed by a passive magnetic armature, is arranged.

[0093] The second housing part 30 forms an engagement surface 302 which is oriented perpendicular to the closing direction X and which can be brought into contact with the engagement surface 202 of the housing part 20 of the first closure part 2 in order to close the closure device 1.

[0094] An opening 300 is formed centrally on the attachment surface 302, in which the connecting element 31 lies and relative to which the connecting element 31 can be adjusted along the closing direction X.

[0095] Fig. 2A and 2B show the connecting element 31 in a position in which the connecting element 31 projects outwards relative to the attachment surface 302 of the housing part 30, so that the connecting element 31 can be brought into engagement with the spring locking element 21 of the first closure part 2 by means of a circumferential locking projection 310 in order to connect the closure parts 2, 3 to one another.

[0096] The connecting element 31 can be countersunk into the housing part 30 by moving the connecting element 31 into the housing part 30 opposite to the closing direction X. Through the magnetic interaction of the magnetic device 32 of the connecting element 31 and the magnetic device 33 on the cover element 303, the connecting element 31 is held in the countersunk position, for example, when the closure device 1 is opened, i.e., when the closure parts 2, 3 are separated from one another.

[0097] If the closure parts 2, 3 are brought closer together along the closing direction X, the magnetic attraction force between the magnetic device 22 of the first closure part 2 and the magnetic device 32 of the connecting element 31 of the second closure part 3 exceeds the magnetic attraction between the magnetic devices 32, 33 from a certain proximity, so that the connecting element 31 is transferred from the retracted position into the extended position according to Fig. 2A, 2B.

[0098] By placing the closure parts 2, 3 against each other along the closing direction X, the connecting element 31 can thus be inserted into the insertion opening 204 and engaged with the spring locking element 21. The spring locking element 21 can be spread open in a plane perpendicular to the closing direction X, so that the locking projections 210, 310 snap into engagement with each other, thus establishing a mechanically secure connection between the closure parts 2, 3.

[0099] To open the closure device 1, the closure parts 2, 3 can be moved relative to one another along the opening direction Y, so that the connecting element 31 is disengaged from the spring locking element 21 in the opening direction Y through the exit opening 203. The opening direction Y is directed (approximately) perpendicular to the closing direction X. By sliding the connecting element 31 out of the spring locking element 21 along the opening direction Y, the closure parts 2, 3 can be separated from one another, shearing off the magnetic devices 22, 32, and the closure device 1 can thus be opened.

[0100] The connecting element 31 forms the locking projection 310 at its outwardly projecting end. Via a cylindrical shaft portion 311, the locking projection 310 is connected to a foot portion 312, which projects radially outward and lies in the receiving chamber 301 of the housing part 30. In the extended position according to Fig. 2A, 2B, the shaft portion 311 extends through the opening 300 in the region of the attachment surface 302. The foot portion 312 provides support relative to the housing part 30 of the connecting element 3. The closure device 1 has an anti-rotation device 4, which has a pair of engagement elements 40 arranged on the first closure part 2, diametrically opposed with respect to the insertion opening 204, and associated engagement openings 44 formed on the second closure part 3.

[0101] The engagement elements 40 on the first closure part 2 are connected to one another via a connecting section 41, resulting in a one-piece component forming the engagement elements 40. Via spring elements 43, the engagement elements 40 are spring-biased relative to the housing cover 201 of the housing part 20 in the direction of a functional position, shown in Figs. 3A, 3B, projecting relative to the attachment surface 202 along the closing direction / protruding.

[0102] The associated engagement openings 44 are formed as openings on the attachment surface 302 of the housing part 30 of the second closure part 3.

[0103] The engagement elements 40 of the anti-rotation device 4 and the associated engagement openings 44 can be used to secure the closure parts 2, 3 against rotation in a predetermined rotational position.

[0104] Because the connecting element 31 is rotationally symmetrical, the closure parts 2, 3 can be placed against one another in any rotational position and connected to one another by the engagement of the connecting element 31 with the spring locking element 21. Because the engagement elements 40 on the housing part 20 of the first closure part 2 are adjustable along the closing direction X and counter to the spring preload of the spring elements 43, the engagement elements 40 do not prevent the attachment of the closure parts 2, 3 and the engagement of the connecting element 31 with the spring locking element 21, but can deflect into the housing part 20.

[0105] However, the engagement elements 40 only engage with the associated engagement openings 44 once the closure parts 2, 3 have reached the predetermined rotational position relative to one another. If, after attachment, the closure parts 2, 3 are rotated relative to one another, the engagement elements 40 snap into engagement with the associated engagement openings 44 due to the spring preload as soon as the rotational position associated with this engagement is reached. This engagement prevents further rotation, so that the closure parts 2, 3 are secured against rotation relative to one another in the then assumed rotational position. By engaging in the engagement openings 44, the engagement elements 40 also provide security against opening the closure device 2, 3. In particular, the closure parts 2, 3 cannot be moved relative to one another along the opening direction Y as long as the engagement elements 40 are engaged with the engagement openings 44.

[0106] To open the closure device 1, the engagement elements 40 can be moved out of the projecting functional position (Figs. 3A, 3B) against the spring preload of the spring elements 43 by a user engaging actuating portions 42 on the engagement elements 40 and disengaging the engagement elements 40 from the engagement openings 44. The closure parts 2, 3 can then be moved relative to one another along the opening direction Y in order to disengage the connecting element 31 from the spring locking element 21 to separate the closure parts 2, 3.

[0107] In another embodiment shown in Figs. 4 to 6A, 6B, in contrast to the embodiment according to Figs. 1 to 3A, 3B, the engagement elements 40 are formed separately from one another and are each spring-loaded relative to the housing cover 201 of the housing part 20 via a spring element 43. Actuating sections 42 on the engagement elements 40 are not present in this embodiment.

[0108] In the illustrated embodiment, ramps 440 are formed on the engagement openings 44, as can be seen from the sectional view according to Fig. 5B, onto which ramps the engagement elements 40 run during a relative movement of the closure parts 2, 3 along the opening direction Y, so that when the closure device 1 is opened the engagement elements 40 are automatically adjusted out of the functional position and pressed into the housing part 20.

[0109] In this embodiment, the engagement elements 40 thus prevent rotation of the closure parts 2, 3 relative to one another in the connected position of the closure parts 2, 3, but do not prevent the opening of the closure device 1 by relative movement of the closure parts 2, 3 along the opening direction Y.

[0110] Otherwise, the embodiment according to Figs. 4 to 6A, 6B, in particular with regard to the functional design of the closure parts 2, 3, is the same as the embodiment according to Figs. 1 to 3A, 3B, so that reference should also be made to the preceding explanations.

[0111] In an embodiment illustrated in Figs. 7 to 9A, 9B, the housing part 30 has a guide device 304 on the receiving chamber 301, which guides the connecting element 31 along a defined movement path following a helical line. In this embodiment, the base section 312 of the connecting element 31 is shaped complementarily to the guide device 304 and guided on the guide device 304, so that the connecting element 31 is adjusted relative to the housing part 30 between the extended position and the retracted position along the closing direction X when rotated relative to the housing part 30.

[0112] In the illustrated embodiment, engagement elements 40 of the rotation-locking device 4 are adjustably arranged on the housing part 30 and, in the functional position, protrude relative to the attachment surface 302 of the housing part 30 along the closing direction X, as can be seen from Fig. 8A, 8B. If the closure parts 2, 3 are mechanically connected to one another by the engagement of the connecting element 31 in the spring locking element 21 of the first closure part 2 and the closure parts 2, 3 are also in the predetermined rotational position relative to one another, the engagement elements 40 engage in associated engagement openings 44 (see Fig. 9A, 9B) on the attachment surface 202 of the housing part 20 of the first closure part 2, so that the closure parts 2, 3 are secured in their rotational position relative to one another.

[0113] In the illustrated embodiment, the engagement elements 40 are magnetically configured in that the engagement elements 40 have magnetic devices 402. Furthermore, magnetic devices 400 are arranged on the housing part 30 of the second closure part 3, which are resiliently preloaded toward a home position via spring elements 401 and magnetically interact with the magnetic devices 402 of the engagement elements 40.

[0114] In addition, magnetic devices 450 are arranged on an operating element 45, which is arranged on the first closure part 2 and is movable relative to the housing part 20 along an actuation direction B extending transversely to the closing direction X. These magnetic devices interact in a magnetically attractive manner with the magnetic devices 402 of the engagement elements 40. When the closure parts 2, 3 are separated from one another, the engagement elements 40 are held in a recessed position on the housing part 30 by magnetic interaction between the magnetic devices 400, 402 and thus do not protrude, or only protrude insignificantly, from the attachment surface 302.If the closure parts 2, 3 are placed against one another along the closing direction X to close the closure device 1 and the closure parts 2, 3 are brought into the predetermined rotational position relative to one another, in which the engagement elements 40 are arranged in alignment with the engagement openings 44 on the attachment surface 202 of the housing part 20 of the closure part 2, the magnetic attraction between the magnetic devices 402, 450 of the engagement elements 400 and the operating element 45 exceeds the magnetic attraction between the magnetic devices 400, 402, so that the engagement elements 40 are magnetically drawn into engagement with the engagement openings 44. The closure parts 2, 3 are thus secured against rotation relative to one another.

[0115] To open the closure device 1, the operating element 45 can be displaced in the actuation direction B relative to the housing 20. As a result, the magnetic devices 450 are moved out of the region of the engagement openings 44, so that the magnetic attraction between the magnetic devices 402 of the engagement elements 40 and the magnetic devices 450 of the operating element 45 is weakened and the magnetic attraction force between the magnetic devices 400 on the side of the housing part 30 and the magnetic devices 402 of the engagement elements 40 exceeds the magnetic attraction between the magnetic devices 402, 450, so that the engagement elements 40 are pulled towards their retracted position on the housing part 30 and the engagement with the engagement openings 44 is thus released.

[0116] The closure device 1 can thus be opened by relative movement of the closure parts 2, 3 along the opening direction Y.

[0117] In the illustrated embodiment, the housing part 30 is mounted on a mounting part 34 by inserting the housing part 30 into the mounting part 34 and connecting it to the mounting part 34 via a bayonet connection.

[0118] For this purpose, locking sections 305 in the form of arcuate webs are formed on the housing part 30, projecting radially outward, as can be seen in Fig. 7. Complementary locking sections 340 in the form of arcuate webs projecting radially inward are formed on the annular mounting part 34. The housing part 30 can be placed on the mounting part 34 in a position in which attachment areas 306 between the locking sections 305 of the housing part 30 are aligned with the locking sections 340 of the mounting part 34 and can then be rotated about the closing direction X relative to the mounting part 34 in order to establish the bayonet connection between the housing part 30 and the mounting part 34 and to engage the locking sections 305, 340 with one another.

[0119] In the illustrated embodiment, the engagement elements 40 are guided in guide openings 307 on the housing part 30, as can be seen from the exploded view according to Fig. 7 in conjunction with the views according to Figs. 8A and 8B. The guide openings 307 also serve as tool openings to which a tool can be applied in order to mount the housing part 30 on the mounting part 34, in particular in order to rotate the housing part 30 relative to the mounting part 34 to engage the locking sections 305, 340, or to disassemble it.

[0120] The bayonet connection can be released by disengaging the locking sections 305, 340, so that components of the locking device 1 can be replaced.

[0121] As illustrated in Fig. 13, in the illustrated embodiment, the magnetic device 400, which is formed by a magnetically active plate element and is assigned to a respective engagement element 40, implements a rotation lock for locking the bayonet connection. The magnetic device 400, formed by the magnetically active plate element, is adjustable on the second housing part 30 against the spring preload of the spring element 401. If the second housing part 30 and the mounting part 34 reach the operating position during assembly, in which the locking sections 305, 340 are engaged with one another, the respective plate element 400 snaps into engagement with an associated locking opening 341 on the locking section 340 of the mounting part 34, so that the second housing part 30 and the mounting part 34 are secured against rotation relative to one another in their operating position.

[0122] In particular, disassembly of the second housing part 30 from the mounting part 34 is not possible without releasing the locking mechanism by the respective plate element 400. To release the locking mechanism of the rotary lock, a tool can be inserted through the guide openings 307, which serve as tool openings, in order to act on the engagement elements 40 guided in the guide openings 307 and press them into the housing part 30. Due to the action of the engagement elements 40, the plate elements 400 are adjusted and disengaged from the locking openings 341 on the locking sections 340 of the mounting part 34, so that the rotary lock is unlocked and the second housing part 30 can be disassembled from the mounting part 34.

[0123] The mounting part 34 can be assigned to a higher-level assembly, so that by mounting on the mounting part 34 the housing part 30 can be mounted on the higher-level assembly.

[0124] An embodiment illustrated in Fig. 10 to 12A, 12B differs from the embodiment according to Fig. 7 to 9A, 9B in that ramps 440 are formed on the engagement openings 44 of the closure part 2, onto which ramps the engagement elements 40 can run when the closure parts 2, 3 are moved relative to one another along the opening direction Y in order to open the closure device 1. When the closure device 1 is opened, the engagement elements 40 are thus automatically pressed into the housing part 30 by running onto the ramps 440 and thus do not block the opening of the closure device 1.

[0125] In the illustrated embodiment, magnetic devices 450 are fixedly arranged on the housing part 20 of the closure part 2 in the region of the engagement openings 44. The magnetic devices 450 interact in a magnetically attractive manner with the magnetic devices 402 of the engagement elements 40, so that the engagement elements 40 are drawn into engagement with the engagement openings 44 when the closure parts 2, 3 are in the predetermined rotational position relative to one another.

[0126] An operating element is not required to open the closure device 1 in the embodiment according to Figs. 10 to 12A, 12B.

[0127] Otherwise, the embodiment according to Figs. 10 to 12A, 12B is functionally identical to the embodiment according to Figs. 7 to 9A, 9B, so reference should also be made to the explanations of the preceding embodiment. In an embodiment shown in Figs. 14A, 14B to 22A, 22B, a closure device 1 has a first closure part 2 and a second closure part 3. The closure parts 2, 3 can be placed against one another along a closing direction X and are mechanically firmly connected to one another in a connected position.

[0128] The first closure part 2 has a first housing part 20, which forms a receiving opening 200 in which a spring locking element 21 is received. The rear of the housing part 20 is closed by a housing cover 201, on which a first magnetic device 22 in the form of a permanent magnet is arranged centrally.

[0129] In the illustrated embodiment, the spring locking element 21 is formed by a C-ring which has an arrangement of radially inwardly projecting locking projections 210.

[0130] As can be seen from Figs. 14A and 14B, the housing part 20 forms an attachment surface 202 oriented perpendicular to the closing direction X and on which an insertion opening 204 is formed, in the region of which the spring locking element 21 is arranged. In an opening direction Y, the insertion opening 204 is laterally opened by an exit opening 203, so that the insertion opening 204 is not circumferentially closed (with respect to the closing direction X).

[0131] The second closure part 3 has a housing part 30 forming a receiving chamber 301 in which a connecting element 31 is received. The connecting element 31 has a second magnetic device 32, which in the illustrated embodiment is formed by a permanent magnet. The receiving chamber 301 is closed at the rear by a cover element 303, on which a third magnetic device 33, for example, formed by a passive magnetic armature, is arranged.

[0132] The second housing part 30 forms an engagement surface 302, which is oriented perpendicular to the closing direction X and which, in order to close the closure device 1, can be brought into contact with the engagement surface 202 of the housing part 20 of the first closure part 2. An opening 300 is formed centrally on the engagement surface 302, in which the connecting element 31 rests and relative to which the connecting element 31 can be adjusted along the closing direction X.

[0133] Fig. 15A, 15B, 16A, 16B and 17 show the connecting element 31 in a position in which the connecting element 31 does not protrude outward relative to the attachment surface 302 of the housing part 30, but is substantially flush with the attachment surface 302 with an outwardly facing end face. In the countersunk position according to Fig. 15A, 15B, 16A, 16B and 17, the connecting element 31 is countersunk into the housing part 30 by the connecting element 31 being adjusted into the housing part 30 counter to the closing direction X. By magnetic interaction of the magnetic device 32 of the connecting element 31 and the magnetic device 33 on the cover element 303, the connecting element 31 is held, for example, in the retracted position when the closure device 1 is opened, i.e. the closure parts 2, 3 are separated from one another.

[0134] If the closure parts 2, 3 are brought closer together along the closing direction X, the magnetic attraction force between the magnetic device 22 of the first closure part 2 and the magnetic device 32 of the connecting element 31 of the second closure part 3 exceeds the magnetic attraction between the magnetic devices 32, 33 after a certain proximity, so that the connecting element 31 is transferred from the retracted position into an extended position shown in Fig. 18. In the extended position, the connecting element 31 protrudes outwards relative to the attachment surface 302 of the housing part 30, so that the connecting element 31 can be brought into engagement with the spring locking element 21 of the first closure part 2 by means of a circumferential locking projection 310 in order to connect the closure parts 2, 3 to one another.

[0135] By placing the closure parts 2, 3 against one another along the closing direction X, the connecting element 31 can thus be inserted into the insertion opening 204 and engaged with the spring locking element 21. The spring locking element 21 can be spread open in a plane perpendicular to the closing direction X, so that the locking projections 210, 310 snap into engagement with one another, thus establishing a mechanically secure connection between the closure parts 2, 3. Figs. 22A, 22B show the closure device 1 in a closed position, in which the closure parts 2, 3 are connected to one another by the engagement of the connecting element 31 in the spring locking element 21.

[0136] To open the closure device 1, the closure parts 2, 3 can be moved relative to one another along the opening direction Y, so that the connecting element 31 is disengaged from the spring locking element 21 in the opening direction Y through the exit opening 203. The opening direction Y is directed (approximately) perpendicular to the closing direction X. By sliding the connecting element 31 out of the spring locking element 21 along the opening direction Y, the closure parts 2, 3 can be separated from one another, shearing off the magnetic devices 22, 32, and the closure device 1 can thus be opened.

[0137] The connecting element 31 forms the locking projection 310 at its outwardly projecting end. The locking projection 310 is connected via a cylindrical shaft portion 311 to a base portion 312, which projects radially outward and lies in the receiving chamber 301 of the housing part 30. In the extended position according to Fig. 18, the shaft portion 311 extends through the opening 300 in the region of the contact surface 302. The base portion 312 provides support relative to the housing part 30 of the connecting element 3.

[0138] The closure device 1 has a rotation-locking device 4 which, in the illustrated embodiment, has a (single) engagement element 40 arranged on the first closure part 2 and an associated engagement opening 44 formed on the second closure part 3, as can be seen from Fig. 15A, 15B, 16A, 16B in conjunction with Fig. 21.

[0139] In the illustrated embodiment, the engagement element 40 is arranged centrally on the first closure part 2 with respect to a transverse direction Q perpendicular to the closing direction X and the opening direction Y. With respect to the opening direction Y, the engagement element 40 is arranged behind the insertion opening 204 and the exit opening 203 opening the insertion opening 204 in the opening direction Y.

[0140] Complementary to the engagement element 40, the engagement opening 44 is arranged centrally with respect to the opening direction Y on the second closure part 3. In the illustrated embodiment, the engagement element 40 is movably guided along the closing direction X in a guide chamber 205 within the housing part 20 of the first closure part 2 via guide sections 403 formed laterally on the pin-shaped engagement element 40, as can be seen in particular from the exploded view according to Fig. 14A.

[0141] The engagement element 40 on the closure part 2 is spring-biased relative to the housing cover 201 of the housing part 20 via a spring element 43 in the direction of a functional position shown in Figs. 15A, 15B and 16A, 16B, projecting relative to the attachment surface 202 along the closing direction X.

[0142] The associated engagement opening 44 on the closure part 3 is formed as an opening on the attachment surface 302 of the housing part 30 of the second closure part 3.

[0143] The engagement element 40 of the anti-rotation device 4 and the associated engagement opening 44 ensure that the closure parts 2, 3 are secured against rotation in a predetermined rotational position.

[0144] Because the connecting element 31 is rotationally symmetrical, the closure parts 2, 3 can in principle be placed against one another in any desired rotational position and connected to one another by the engagement of the connecting element 31 in the spring locking element 21. Because the engagement element 40 on the housing part 20 of the first closure part 2 is adjustable along the closing direction X and counter to the spring preload of the spring element 43, the engagement element 40 does not prevent the attachment of the closure parts 2, 3 and the engagement of the connecting element 31 in the spring locking element 21, but can deflect into the housing part 20.

[0145] However, the engagement element 40 only engages with the associated engagement opening 44 once the closure parts 2, 3 have reached the predetermined rotational position relative to one another. If, after attachment, the closure parts 2, 3 are rotated relative to one another, the engagement element 40 snaps into engagement with the associated engagement opening 44 due to the spring preload as soon as the rotational position associated with this engagement is reached. This engagement prevents further rotation, so that the closure parts 2, 3 are secured against rotation relative to one another in the rotational position then assumed. In the illustrated embodiment, a ramp 440 is formed on the engagement opening 44, as can be seen from the sectional view according to Fig.15B, onto which the engagement element 40 runs when the closure part 3 moves in the opening direction Y relative to the closure part 2, so that when the closure device 1 is opened, the engagement element 40 is automatically moved out of the functional position and pressed into the housing part 20.

[0146] In this embodiment, the engagement element 40 thus blocks rotation of the closure parts 2, 3 relative to one another in the connected position of the closure parts 2, 3, but does not block opening of the closure device 1 by relative movement of the closure parts 2, 3 along the opening direction Y.

[0147] In the illustrated embodiment, the housing part 20 of the first closure part 2 is mounted on a mounting part 23 by inserting the housing part 20 into the mounting part 23 and connecting it to the mounting part 23 via a bayonet connection.

[0148] For this purpose, locking sections 206 in the form of radially outwardly projecting projections are formed on the housing part 20, as can be seen from Fig. 14A, 14B and the sectional view according to Fig. 15B. Locking sections 232 in the form of radially inwardly projecting, arcuate webs are formed on an annular body 230 of the mounting part 23.

[0149] The housing part 20 can be placed on the mounting part 23 in a position in which the locking sections 206 are aligned with free areas 231 on the mounting part 23 and can then be rotated about the closing direction X relative to the mounting part 23 in order to establish the bayonet connection between the housing part 20 and the mounting part 23 by sliding the locking sections 206 of the housing part 20 onto the locking sections 232 of the mounting part 23.

[0150] In the illustrated embodiment, the locking sections 232 on the mounting part 23 are stepped in that steps of different heights with respect to the closing direction X are formed on each locking section 232. This enables a play-free, frictionally engaged connection between the housing part 20 and the mounting part 23 by screwing the locking sections 206 on the housing part 20 onto the locking sections 206 after the housing part 20 has been inserted into the mounting part 23. The concept underlying the invention is not limited to the previously described embodiments, but can also be implemented in other ways.

[0151] A locking device of the type described can be used in a variety of ways to connect assemblies associated with the locking parts. In the connected position, the locking parts are firmly connected to each other and secured against rotation. By separating the locking parts, the locking device can be opened, allowing the parent assemblies to be detached from each other.

[0152] For example, a locking device of the type described can be used for arranging an electronic device in or on a vehicle, for example on a dashboard of a vehicle.

[0153] List of reference symbols

[0154] 1 locking device

[0155] 2 locking part

[0156] 20 Housing part

[0157] 200 Recording opening

[0158] 201 cover element

[0159] 202 attachment area

[0160] 203 Exit opening

[0161] 204 insertion opening

[0162] 205 Lead Chamber

[0163] 206 restricted section

[0164] 21 Spring locking element

[0165] 210 locking projection

[0166] 22 Magnetic device

[0167] 23 Assembly part

[0168] 230 ring bodies

[0169] 231 Free Area

[0170] 232 restricted section

[0171] 3 closure part

[0172] 30 Housing part

[0173] 300 opening

[0174] 301 Recording Chamber

[0175] 302 attachment area

[0176] 303 cover element

[0177] 304 Guide device (thread guide)

[0178] 305 restricted section

[0179] 306 Attachment area

[0180] 307 Tool opening

[0181] 31 connecting element

[0182] 310 locking projection

[0183] 311 shaft section

[0184] 312 foot section

[0185] 32 Magnetic device

[0186] 33 Magnetic device

[0187] 34 Assembly part

[0188] 340 Barrier section 341 Barrier opening

[0189] 4 Anti-rotation device

[0190] 40 engagement element

[0191] 400 magnetic device

[0192] 401 spring element

[0193] 402 Magnetic device

[0194] 403 Guide Section

[0195] 41 connecting section

[0196] 42 operating section

[0197] 43 Spring element

[0198] 44 Access opening

[0199] 440 Ramp

[0200] 45 Control element

[0201] 450 magnetic device

[0202] B Actuating direction

[0203] Q transverse direction

[0204] X Closing direction

[0205] Y opening direction

Claims

Claims 1 . Closure device (1), with a first closure part (2) which has a first housing part (20) with an insertion opening (204), a spring locking element (21) arranged on the first housing part (20) and a first magnetic device (22), and a second closure part (3) which has a second housing part (30), a connecting element (31) movable on the second housing part (30) along a closing direction (X) and a second magnetic device (32),wherein, for connecting the first closure part (2) and the second closure part (3), the connecting element (31) can be inserted into the insertion opening (204) along the closing direction (X) and can be locked in the insertion opening (204) with the spring locking element (21), and for separating the first closure part (2) and the second closure part (3), the connecting element (31) can be moved out of the insertion opening (204) along an opening direction (Y) different from the closing direction (X) and can be separated from the spring locking element (21), wherein the first magnet device (22) and the second magnet device (32) interact in a magnetically attractive manner for connecting the first closure part (2) and the second closure part (3), characterized by a rotation-preventing device (4) comprising at least one engagement element (40) which is movably arranged on one of the first closure part (2) and the second closure part (3),and at least one engagement opening (44) arranged on the other of the first closure part (2) and the second closure part (3), wherein the at least one engagement element (40) is designed to engage with the at least one engagement opening (44) in a predetermined rotational position of the first closure part (2) and the second closure part (3) relative to one another, wherein the engagement of the at least one engagement element (40) with the at least one engagement opening (44) secures the first closure part (2) and the second closure part (3) against rotation about the closing direction (X) from the predetermined rotational position.

2. Closure device (1) according to claim 1, characterized in that the at least one engagement element (40) is arranged on one of the first closure part (2) and the second closure part (3) so as to be movable along the closing direction (X).

3. Closure device (1) according to claim 1 or 2, characterized in that the first housing part (20) forms a first attachment surface (202) and the second housing part (30) forms a second attachment surface (302), which can be attached to one another to connect the first closure part (2) and the second closure part (3).

4. Closure device (1) according to claim 3, characterized in that the insertion opening (204) is formed on the first attachment surface (202).

5. Closure device (1) according to claim 3 or 4, characterized in that the at least one engagement element (40) protrudes in a functional position relative to the attachment surface (202, 302) of one of the first closure part (2) and the second closure part (3).

6. Closure device (1) according to claim 5, characterized in that the at least one engagement opening (44) is formed on the attachment surface (302, 202) of the other of the first closure part (2) and the second closure part (3).

7. Closure device (1) according to claim 5 or 6, characterized in that the at least one engagement element (40) is movable out of the functional position in order to cancel the engagement of the at least one engagement element (40) with the at least one engagement opening (44).

8. Closure device (1) according to one of claims 5 to 7, characterized in that the anti-rotation device (4) has an actuating section (42) connected to the at least one engagement element (40) and operable by a user for moving the at least one engagement element (40) out of the functional position.

9. Closure device (1) according to one of claims 5 to 8, characterized in that the at least one engagement opening (44) has a ramp (440) extending obliquely to the opening direction (Y), onto which ramp the at least one engagement element (40) runs during a movement of the connecting element (31) along the opening direction (Y) to separate the first closure part (2) and the second closure part (3) in order to adjust the at least one engagement element (40) out of the functional position.

10. Closure device (1) according to one of claims 5 to 9, characterized in that the at least one engagement element (40) is elastically movable out of the functional position.

11. Closure device (1) according to one of claims 5 to 10, characterized in that the rotation-preventing device (4) has at least one spring element (43), wherein the at least one engagement element (40) is resiliently loaded in the direction of the functional position by the spring element (43).

12. Closure device (1) according to one of claims 5 to 11, characterized in that the at least one engagement element (40) is magnetically loaded in the direction of the functional position.

13. Closure device (1) according to claim 12, characterized in that the anti-rotation device (4) has a third magnetic device (450) which is arranged on the other of the first closure part (2) and the second closure part (3) and is designed to load the at least one engagement element (40) in the direction of the functional position.

14. Closure device (1) according to claim 13, characterized in that the third magnetic device (450) is arranged in the region of the at least one engagement opening (44) and is designed to pull the at least one engagement element (40) into engagement with the at least one engagement opening (44) in the predetermined rotational position of the first closure part (2) and the second closure part (3) relative to one another.

15. Closure device (1) according to claim 13 or 14, characterized in that the at least one engagement element (40) is magnetic or has a fourth magnetic device (402) which is designed to cooperate in a magnetically attractive manner with the third magnetic device (450).

16. Closure device (1) according to one of claims 13 to 15, characterized in that the rotation-preventing device (4) has an operating element (45) which is movably arranged on the other of the first closure part (2) and the second closure part (3), on which operating element the third magnetic device (450) is arranged.

17. Closure device (1) according to one of the preceding claims, characterized in that the rotation-preventing device (4) has an engagement element (40) which is arranged centrally on one of the first closure part (2) and the second closure part (3) with respect to a transverse direction (Q) perpendicular to the opening direction (Y) and the closing direction (X), wherein an engagement opening (44) is arranged centrally on the other of the first closure part (2) and the second closure part (3).

18. Closure device (1) according to one of the preceding claims, characterized in that the second magnetic device (32) is arranged on the connecting element (31) and is movable together with the connecting element (31) along the closing direction (X) relative to the second housing part (30).

19. Closure device (1) according to one of the preceding claims, characterized in that the second housing part (30) has a guide device (304) for guiding the connecting element (31) relative to the second housing part (30) along a movement path.

20. Closure device (1) according to claim 19, characterized in that the guide device (304) guides the connecting element (31) along a screw line pointing around the closing direction (X) in such a way that a rotation of the connecting element (31) around the closing direction (X) is accompanied by a movement of the connecting element (31) relative to the second housing part (30) along the closing direction (X).

21. Closure device (1) according to one of the preceding claims, characterized in that the spring locking element (21) has a first locking projection (210) and the connecting element (31) has a second locking projection (310), wherein in a connected position of the first closure part (2) and the second closure part (3), the first locking projection (210) and the second locking projection (310) engage with one another in a locking manner.

22. Closure device (1) according to one of the preceding claims, characterized in that the first closure part (3) has a first mounting part (23), wherein the first housing part (20) and the first mounting part (23) are connected to one another in a first operating position via a bayonet connection, and / or that the second closure part (3) has a second mounting part (34), wherein the second housing part (30) and the second mounting part (34) are connected to one another in a second operating position via a bayonet connection.

23. Closure device (1) according to claim 22, characterized in that the first housing part (20) has a first locking section (206) and the first mounting part (23) has a second locking section (232), which can be brought into engagement with one another by rotating the first housing part (20) and the first mounting part (23) about the closing direction (X) and are engaged with one another in the first operating position, and / or that the second housing part (30) has a third locking section (305) and the second mounting part (34) has a fourth locking section (340), which can be brought into engagement with one another by rotating the second housing part (30) and the second mounting part (34) about the closing direction (X) and are engaged with one another in the second operating position.

24. Closure device (1) according to claim 23, characterized in that the first locking portion (206) projects radially outwards on the first housing part (20) and the second locking portion (232) projects radially inwards on the first mounting part (23) and / or that the third locking portion (305) projects radially outwards on the second housing part (30) and the fourth locking portion (340) projects radially inwards on the second mounting part (34).

25. Closure device (1) according to claim 22 to 24, characterized in that the first housing part (20) and the first mounting part (23) are secured against rotation relative to one another in the first operating position via a first rotation lock and / or that the second housing part (30) and the second mounting part (34) are secured against rotation relative to one another in the second operating position via a second rotation lock.

26. Closure device (1) according to one of claims 22 to 25, characterized in that the first housing part (20) and / or the second housing part (30) has at least one tool opening (307) for inserting a tool for producing the bayonet connection, wherein the at least one Tool opening (307) has a guide opening for the at least one engagement element (40) or which forms at least one engagement opening (44).

27. Closure device (1) according to claim 26, characterized in that a rotary lock, via which the first The housing part (20) and the first mounting part (23) are secured against rotation relative to one another in the first operating position or the second housing part (30) and the second mounting part (34) are secured against rotation relative to one another in the second operating position and can be unlocked.

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