Closure device for interconnecting two units
Patent Information
- Application Number
- EP2023820764
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-11-28
- Filing Date
- 2023-11-24
- Publication Date
- 2025-08-20
AI Technical Summary
Existing closure devices lack the ability to conveniently and reliably attach and detach in multiple spatial directions, often requiring specific alignment and lacking secure locking mechanisms, especially in applications like connecting bands, straps, and protective equipment.
A closure device with adjustable locking elements having separate locking sections that engage with distinct engagement devices on a second closure part, allowing for secure attachment in various directions and rotational positions, supported by magnetic attraction and spring-mechanical preload, enabling easy attachment and separation.
The device securely fixes closure parts in multiple spatial directions and rotational positions, allowing for convenient attachment and separation, enhancing usability in diverse applications such as connecting bands, straps, and protective equipment.
Smart Images
Figure 1.1
Abstract
Description
[0001] Locking device for connecting two assemblies together
[0002] Description
[0003] The invention relates to a locking device for connecting two assemblies to one another according to the preamble of claim 1.
[0004] Such a closure device comprises a first closure part having a body, a receiving opening formed on the body, and at least one locking element that can be adjusted relative to the body. The closure device further comprises a second closure part having a plug-in section. To close the closure device, the plug-in section can be inserted into the receiving opening. In a closed position, the plug-in section engages in the receiving opening, and the second closure part is locked relative to the first closure part by the at least one locking element, such that the first closure part and the second closure part are held together. To separate the first closure part and the second closure part from one another, the locking effect of the at least one locking element can be canceled, and the first closure part and the second closure part can be separated from one another by removing the plug-in section from the receiving opening.
[0005] In a closure device known from WO 2022 / 152418 A1, closure elements of a closure part are pivotable relative to a base element of the closure part in order to engage an engagement element of another closure part in a closed position and thus connect the closure parts to one another. The object of the present invention is to provide a closure device that allows the closure parts to be conveniently attached to one another while reliably holding the closure parts together in the closed position.
[0006] This object is achieved by an article having the features of claim 1.
[0007] Accordingly, the at least one locking element has a first locking portion and a second locking portion. The second closure part has a first engagement device and a second engagement device. In the closed position, the locking element assumes a locking position relative to the body of the first closure part, in which the first locking portion engages with the first engagement device and the second locking portion engages with the second engagement device. To cancel the locking effect of the at least one locking element, the first locking portion can be disengaged from the first engagement device and / or the second locking portion can be disengaged from the second engagement device.
[0008] The at least one locking element, which is adjustably arranged on the body of the first closure part, serves to lock the second closure part relative to the first closure part in the closed position. For this purpose, the locking element has a first locking section and a second locking section which are spatially and functionally separated from one another and engage in associated engagement devices on the second closure part when the closure device is in the closed position. As a result of the engagement of the first locking section in the first engagement device and of the second locking section in the second engagement device, the second closure part is locked to the first closure part such that the plug-in section is held in engagement with the receiving opening and the closure parts cannot be separated from one another, at least not without canceling the locking effect.
[0009] The blocking effect for opening the closure device can be canceled by disengaging the first blocking section from the first engagement device and / or disengaging the second blocking section from the second engagement device. At least one engagement between the first blocking section and the first engagement device or between the second blocking section and the second engagement device must therefore be canceled to cancel the blocking effect.If the engagement of at least one locking pair, i.e. between the first locking section and the first engagement device or between the second locking section and the second engagement device, has been canceled, the second closure part can be moved relative to the first closure part at least along one spatial direction, so that the plug-in section can be brought out of engagement from the receiving opening along this spatial direction and the closure parts can thus be released from one another.
[0010] The first closure part can have one or more, for example, two, locking elements that are adjustably arranged on the body of the first closure part. Each locking element can have two locking sections that, in the closed position, engage with associated engagement devices of the second closure part. In an arrangement of multiple locking elements, only one locking element can have two locking sections.
[0011] Compared to existing solutions, a closure device of the type described offers the advantage of being able to be attached and detached in different spatial directions, and the attachment is magnetically assisted. A closure device of the type described here can be used to connect straps, belts, and harnesses on protective equipment or as a closure on bags, textiles, clothing, shoes, or even watches, electronic devices, jewelry, or the like.
[0012] In one embodiment, the plug-in section can be inserted into the receiving opening along a first spatial direction and along a second spatial direction perpendicular to the first spatial direction. The plug-in section can therefore be inserted into the receiving opening not only exclusively along a single spatial direction, but along a first spatial direction and along a second spatial direction perpendicular to the first spatial direction, or along a movement vectorially composed of movement vector components along the first spatial direction and the second spatial direction, and oblique to the first spatial direction and the second spatial direction. In addition, insertion of the plug-in section into the receiving opening can also be possible by a rotational movement, for example about a third spatial direction perpendicular to the first spatial direction and the second spatial direction.The plug-in section can therefore be inserted into the receiving opening in a variety of ways using very different movements, so that the locking parts can be connected to one another in a variety of ways using different movements.
[0013] In one embodiment, in the closed position, the plug-in section is locked in the receiving opening both along the first spatial direction and along the second spatial direction by the engagement of the first locking section in the first engagement device and the engagement of the second locking section in the second engagement device. The locking effect of the at least one locking element is thus such that, in the closed position, the closure parts are spatially fixed to one another and thus held together in a fixed position, particularly in terms of position and rotation.Because the locking sections of the at least one locking element of the first closure part engage in the engagement devices, a relative movement between the closure parts along the first spatial direction and along the second spatial direction and also along an oblique direction composed by movement vector components along the first spatial direction and the second spatial direction as well as a rotational movement is blocked.
[0014] In one embodiment, the engagement of the first engagement section with the first engagement device blocks a relative movement of the first closure part and the second closure part to one another both along the first spatial direction and along the second spatial direction. The engagement of the first engagement section with the first engagement device thus exerts a blocking effect both along the first spatial direction and along the second spatial direction or an oblique direction vectorially composed of movement vector components along the first spatial direction and the second spatial direction. For example, the engagement of the first engagement section with the first engagement device does not block, or only inadequately blocks, a rotational relative movement of the first closure part and the second closure part, for example about a third spatial direction perpendicular to the first spatial direction and the second spatial direction.
[0015] In one embodiment, the engagement of the second engagement section with the second engagement device blocks a relative movement of the first closure part and the second closure part relative to one another along the second spatial direction, but not along the first spatial direction. The blocking effect of the engagement of the second engagement section with the second engagement device in the closed position of the closure device thus acts along the second spatial direction, but not along the first spatial direction.For example, the blocking effect of the engagement between the second engagement portion of the at least one blocking element and the second engagement device serves to block a rotational movement of the closure parts relative to one another about the third spatial direction, so that the joint blocking effect of the engagement of the first engagement portion with the first engagement device and of the second engagement portion with the second engagement device fixes the closure parts in a fixed position, in particular also in a rotationally fixed manner, relative to one another when the closure device is in the closed position.
[0016] In one embodiment, an adjustment plane is defined by the first spatial direction and a third spatial direction perpendicular to the first spatial direction and the second spatial direction. For example, to cancel the locking effect of the at least one locking element, the first locking section in the adjustment plane can be disengaged from the first engagement direction and / or the second locking section in the adjustment plane can be disengaged from the second engagement device.By a relative movement between the respective engagement section of the at least one locking element and the associated engagement device of the second closure part, the locking engagement can thus be canceled, so that the locking effect of at least one locking pair is released and thus by releasing the locking effect, a relative movement of the closure parts relative to one another at least along one spatial direction, for example along the first spatial direction, along the second spatial direction, along an oblique direction or along a rotational direction is released.
[0017] In one embodiment, the second closure part has a base section that protrudes transversely to the first spatial direction relative to the plug-in section. The base section thus extends transversely to the first spatial direction, in particular along the third spatial direction. The plug-in section extends from the base section along the first spatial direction, so that the plug-in section can be inserted into the receiving opening on the body of the first closure part to close the closure device, but the base section lies outside the receiving opening on the body of the first closure part.
[0018] In one embodiment, the second engagement device, with which the second locking portion of the at least one locking element engages in the closed position of the closure device, is formed on the base portion. The second engagement device can be formed, for example, as an engagement opening, with which the second locking portion of the at least one locking element engages in the closed position. The engagement can be designed such that, in particular, a relative movement of the second locking portion relative to the second engagement device along the second spatial direction is blocked.
[0019] In one embodiment, the first engagement device is formed on the plug-in portion. If the second engagement device is also formed on the base portion, the first engagement device and the second engagement device are formed on different portions of the second closure part and are thus spatially and functionally separated from each other.
[0020] For example, the first engagement device can be formed by an engagement opening on the plug-in section. The engagement opening can, for example, be formed as a recess on a front surface of the plug-in section, which faces the associated adjustment element along the third spatial direction. The first engagement section of the at least one adjustment element engages with the engagement opening in the closed position of the closure device, thereby preferably blocking movement of the second closure part relative to the first closure part along the first spatial direction and also along the second spatial direction.
[0021] The first locking section and the second locking section on the at least one locking element are preferably spatially separated from one another and thus formed at different locations on the at least one locking section. Furthermore, the first engagement device and the second engagement device on the second closure part are preferably also spatially separated from one another. In the closed position, the at least one locking element engages with different sections in associated, functionally and spatially separate engagement devices on the second closure part and thus locks the closure parts relative to one another in the closed position.
[0022] The at least one locking element is adjustably arranged on the body of the first closure part. The at least one locking element can be movable, for example, rotationally or linearly displaceably relative to the body of the first closure part.
[0023] In one embodiment, the at least one locking element is pivotably mounted about a bearing axis relative to the body of the closure part. The bearing axis of the locking element, around which the locking element is pivotable relative to the body of the first closure part, can point, for example, along the second spatial direction. An adjusting movement of the locking element thus takes place rotationally in a pivot plane spanned by the first spatial direction and the third spatial direction perpendicular to the first spatial direction and the second spatial direction. In one embodiment, the first engagement portion protrudes radially toward the bearing axis in a first direction. The second engagement portion, in contrast, protrudes radially toward the bearing axis in a second direction.
[0024] For example, the first engagement portion and the second engagement portion protrude in substantially opposite directions relative to the bearing axis. The first engagement portion and the second engagement portion thus protrude diametrically from the bearing axis in different directions, so that the engagement portions are formed at different ends of the at least one locking element.
[0025] In one embodiment, the first closure part of the closure device has a first magnetic device. The second closure part, in contrast, has a second magnetic device. The magnetic devices interact in a magnetically attractive manner such that, to close the closure device, the closure parts are drawn toward one another and, in particular, the locking portion is drawn into engagement with the receiving opening formed on the body of the first closure part. This results in a simple, convenient closing process, which is magnetically assisted by the magnetic attraction force of the magnetic devices.
[0026] The first magnetic device can be arranged on the body of the first closure part or on the at least one locking element. The second magnetic device can be arranged, for example, on the plug-in section.
[0027] In one embodiment, the at least one locking element has a third magnetic device which, in the closed position, interacts with the second magnetic device in a magnetically attractive manner, such that the at least one locking element is loaded in the direction of the locked position by the magnetic attraction. The third magnetic device can implement the first magnetic device or can be provided as an additional magnetic device in addition to the first magnetic device on the first closure part. A magnetic prestress thus acts on the at least one locking element in the direction of the locked position, which is brought about by the fact that a third magnetic device is arranged on the locking element and interacts with the second magnetic device of the second closure part in a magnetically attractive manner.If the plug-in section of the second closure part is inserted into the receiving opening of the first closure part in order to close the closure device, the at least one locking element is loaded by the magnetic interaction of the third magnetic device on the at least one locking element and the second magnetic device on the second closure part in such a way that the at least one locking element with the engagement sections formed thereon is brought into engagement with the associated engagement devices and is held in the locking position.
[0028] Additionally or alternatively, a spring-mechanical preload can act on the at least one locking element in the direction of the locking position, so that when the locking device is closed, the at least one locking element automatically assumes the closed position and thus locks the locking parts to one another when the locking parts are placed against one another in the closed position.
[0029] In an initial position, the at least one locking element can be adjusted from the locking position into a release position relative to the body to cancel the locking effect. In the release position, the at least one locking element is adjusted on the body of the first closure part compared to the locking position such that the engagement of the first locking section with the associated first engagement device and also the engagement of the second locking section with the associated second engagement device is canceled, and thus the closure parts are no longer locked to one another. The closure parts can thus be separated from one another to open the closure device.
[0030] In one embodiment, the first closure part has a preloading element, for example in the form of a mechanical spring, which preloads the at least one locking element relative to the body toward the release position. When the closure device is opened, the at least one locking element is held in the release position on the body of the first closure part due to the spring preload.If the closure device is closed and the closure parts are placed against one another in such a way that the plug-in section of the second closure part engages in the receiving opening on the body of the first closure part, the at least one blocking element is magnetically loaded, for example by magnetic interaction of a third magnetic device on the at least one blocking element and the second magnetic device on the second closure part and is thereby adjusted relative to the body of the first closure part, such that the at least one blocking element is moved into the blocking position and thus an engagement is established between the first blocking section and the associated first engagement device and between the second blocking section and the associated second engagement device. In one embodiment, the at least one blocking element is magnetically held in the release position relative to the body when the closure device is open.Instead of or in addition to a prestressing element in the form of a mechanical spring, which mechanically prestresses the blocking element towards the release position, a magnetic prestress can also be provided, for example by a third magnetic device of the at least one blocking element interacting with a fourth magnetic device on the body of the first closure part, and thus the blocking element is magnetically loaded towards the release position when the closure device is open. When the closure device is closed, the magnetic attraction between the third magnetic device on the blocking element and the second magnetic device on the second closure part overlaps and exceeds the magnetic prestress in the direction of the release position, so that the at least one blocking element is transferred from the release position into the blocking position when the closure device is closed.
[0031] A fourth magnetic device is not necessarily formed as a separate magnetic device on the first closure part. For example, the fourth magnetic device can also be formed by the first magnetic device of the first closure part.
[0032] For example, when the closure device is open, the at least one blocking element is magnetically held in the release position relative to the body by an interaction between the third magnetic device of the blocking element and the first magnetic device on the body of the first closure part. If a plurality of blocking elements are provided, an interaction can additionally or alternatively exist between the third magnetic devices of the plurality of blocking elements, which loads the blocking elements in the direction of the release position when the closure device is open. There can also be both an interaction between the third magnetic devices of the blocking elements with one another and an interaction between the third magnetic devices and the first magnetic device, wherein the interactions hold the blocking elements together in the release position.
[0033] In one embodiment, the at least one locking element has an actuating portion for actuation by a user to transfer it from the locked position to the release position. The actuating portion is accessible from outside the first closure part and can be actuated by a user to adjust the at least one locking element on the body of the first closure part. For example, the actuating portion of the at least one locking element extends through an opening in the body of the first closure part and can thus be actuated from outside by a user.
[0034] An actuating direction along which the actuating section is to be actuated in order to transfer the at least one blocking element from the blocking position into the release position can, for example, be directed along the third spatial direction perpendicular to the first spatial direction and the second spatial direction.
[0035] If two locking elements are provided on the first closure part, these can be actuated, for example, in opposite actuation directions along the third spatial direction, for example, toward each other, in order to move the locking elements from the locked position to the release position. A user can, for example, act on the locking elements with two fingers and press them toward each other, thereby moving the locking elements together from the locked position to the release position.
[0036] In one embodiment, the second closure part has an actuating element that can be actuated to transfer the at least one locking element into the release position on the second closure part. Actuation of the locking element for moving it from the locked position to the release position thus occurs indirectly by actuating an actuating element on the second closure part, which, when actuated, acts on the at least one locking element on the first closure part.
[0037] If two locking elements are adjustably arranged on the first closure part, the second closure part can, for example, have two actuating elements, with each locking element on the first closure part being assigned an actuating element on the second closure part.
[0038] In one embodiment, the actuating element is designed to mechanically act on the at least one locking element on the first closure part for adjustment. The actuating element can, for example, be movable along the third spatial direction on the second closure part. If the actuating element on the second closure part is adjusted, the actuating element mechanically acts on the at least one locking element and moves the at least one locking element from the locked position to the release position in order to open the closure device.
[0039] In another embodiment, the actuating element is designed to adjust a magnetic device, for example the second magnetic device, on the second closure part in order to transfer the at least one locking element into the release position through magnetic interaction of the at least one locking element with the magnetic device. In a first position of the actuating element, the magnetic device assumes a position on the second closure part in which the magnetic device interacts in a magnetically attractive manner with the third magnetic device of the at least one locking element. By adjusting the actuating element, the position of the magnetic device on the second closure part can be changed, so that the magnetic device is adjusted relative to the third magnetic device of the at least one locking element and a magnetic force of attraction is preferably reversed into a magnetic repulsion force.Due to the changed magnetic interaction, at least one locking element is moved from the locking position to the release position and the locking device is thus unlocked.
[0040] In this embodiment, the magnetic device, for example, the second magnetic device, can be arranged on the actuating element, for example. The actuating element can be arranged rotatably on the second closure part, for example, on the plug-in section of the second closure part, so that by rotating the actuating element, the magnetic device on the second closure part can be rotated and thus changed in its position.
[0041] In this embodiment, an axis of rotation of the actuating element can be directed, for example, along the third spatial direction, which extends perpendicular to the first spatial direction and the second spatial direction.
[0042] In other possible embodiments, the axis of rotation can also be directed along the first or second spatial axis.
[0043] In one embodiment, the plug-in section of the second closure part has an elastically deflectable deflection arm. The first engagement device is formed on the deflection arm. In this case, it can be provided that the deflection arm on the second closure part is deflectable in order to disengage the first locking section from the first engagement device. The deflection arm on the second closure part can be elastic, for example, along the third spatial direction, i.e., transversely to the first spatial direction and the second spatial direction. The deflection arm is thus elastically adjustable on the second closure part along the third spatial direction.
[0044] In general, it is possible for the closure device to be unlocked by moving the at least one locking element from the locked position to a release position, in order to unlock and thus open the closure device by actuating the at least one locking element. Additionally or alternatively, it may also be possible for the engagement of at least one engagement section with an associated engagement device to be canceled by adjusting a section of the second closure part on which the engagement device is arranged. This can be achieved by elastically adjusting the deflection arm on the plug-in section of the second closure part. The locking engagement between the engagement device of the deflection arm and the associated engagement section of the at least one locking element is thus canceled not by an adjusting movement of the locking element, but by a deflection movement on the elastic deflection arm.If the engagement has been released by deflection of the deflection arm, a movement of the locking parts relative to each other is released at least along one spatial direction, so that the locking device can be opened.
[0045] In one embodiment, the second closure part has a blocking element which is designed to lock the deflection arm on the second closure part in a blocking position so that the deflection arm cannot be disengaged from the first engagement device. The blocking element is adjustable from the blocking position so that the deflection arm can be disengaged from the first engagement device. In the closed position of the closure device, the blocking element assumes the blocking position so that elastic deflection of the deflection arm is not possible. The blocking element can be adjusted on the second closure part in order to release the blocking of the deflection arm. Once the blocking is released, the deflection arm can be elastically deflected and thus the engagement of the engagement device on the deflection arm with the associated blocking section on the at least one blocking element can be released.
[0046] Particularly in an embodiment in which a blocking element is provided for blocking the deflection arm in the closed position, the deflection arm can be shaped elastically on the second closure part such that the deflection arm is automatically deflected on the second closure part when the closure parts are loaded along a spatial direction relative to one another when the blocking element is moved out of the blocked position. If the deflection arm is therefore not blocked against deflection on the second closure part, the deflection arm can automatically adjust elastically on the second closure part when a load is applied between the closure parts. In the closed position, the deflection arm is blocked by the blocking element, so that elastic deflection of the deflection arm is not possible.To open the closure device, the blocking element can be adjusted out of the blocking position so that an elastic adjustment of the deflection arm is released and when the closure parts are loaded relative to one another, the deflection arm is automatically deflected and the engagement between the engagement device on the deflection arm and the associated engagement section on the at least one blocking element is thus automatically canceled.
[0047] If the first closure part has two locking elements, two elastically deflectable deflection arms are preferably formed on the second closure part, each carrying an engagement device which is each assigned to a locking section of the associated locking element.
[0048] The first magnetic device and the second magnetic device can each be formed, for example, by a permanent magnet. In the closed position, the magnetic devices point toward each other with opposite poles and thus magnetically attract each other, so that, on the one hand, the closing of the closure device is magnetically assisted by the magnetic devices, and, on the other hand, the closure parts are magnetically biased toward each other even in the closed position.
[0049] In another embodiment, the first magnetic device and the second magnetic device can be formed on the one hand by a permanent magnet and on the other hand by a passive magnetic armature, for example made of a ferromagnetic material, for example an iron material.
[0050] A third magnetic device of the at least one blocking element can be configured, for example, by a permanent magnet or, if the second magnetic device of the second closure part is formed by a permanent magnet, by a passive magnetic armature. A fourth magnetic device on the body of the first closure part for interacting with a third magnetic device of the at least one blocking element can be configured by a permanent magnet or, if the third magnetic device is formed by a permanent magnet, by a passive magnetic armature. The fourth magnetic device can also be implemented by the first magnetic device of the first closure part.
[0051] The concept underlying the invention will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. They show:
[0052] Fig. 1 is an exploded view of an embodiment of a closure device;
[0053] Fig. 2 shows another exploded view of the closure device;
[0054] Fig. 3A is a view of the locking device in a closed position;
[0055] Fig. 3B is a frontal view of the closure device;
[0056] Fig. 3C is a plan view of the closure device;
[0057] Fig. 3D is a sectional view along the line AA according to Fig. 3C, in which
[0058] closed position;
[0059] Fig. 4 the sectional view according to Fig. 3D, in a release position of
[0060] Locking elements of the locking device for opening the locking device;
[0061] Fig. 5A is a view of the closure device in an open position;
[0062] Fig. 5B the sectional view according to Figs. 3D and 4, in the open position of the closure device;
[0063] Fig. 6 shows a view of the closure device during separation of closure parts from one another along a second spatial direction perpendicular to a first spatial direction; Fig. 7 shows a view of another embodiment of a closure device, corresponding to the sectional view according to Fig. 3D;
[0064] Fig. 8 is a view of yet another embodiment of a closure device, again corresponding to the sectional view according to Fig. 3D;
[0065] Fig. 9A is a view of another embodiment of a closure device, in a closed position;
[0066] Fig. 9B is a plan view of the closure device;
[0067] Fig. 9C is a sectional view taken along the line AA of Fig. 9B;
[0068] Fig. 10 the sectional view according to Fig. 9C, in a release position of
[0069] Locking elements of the locking device;
[0070] Fig. 11 shows the sectional view according to Fig. 9C, with the closure device open;
[0071] Fig. 12A is a view of another embodiment of a closure device;
[0072] Fig. 12B is a plan view of the closure device;
[0073] Fig. 12C is a sectional view taken along the line AA of Fig. 12B;
[0074] Fig. 13A is a view of the locking device with actuated deflection arms of a plug-in section for unlocking the locking device;
[0075] Fig. 13B the sectional view according to Fig. 12C, with actuated deflection arms;
[0076] Fig. 14 the sectional view according to Fig. 12C, with the closure device open;
[0077] Fig. 15A is a view of yet another embodiment of a closure device;
[0078] Fig. 15B is a plan view of the closure device; Fig. 15C is a sectional view along line AA of Fig. 15B;
[0079] Fig. 15D is a sectional view taken along line BB of Fig. 15B;
[0080] Fig. 15E the sectional view according to Fig. 15C, in a release position of
[0081] Locking elements of the locking device;
[0082] Fig. 16A is a view of yet another embodiment of a
[0083] locking device;
[0084] Fig. 16B is a plan view of the closure device;
[0085] Fig. 16C is a sectional view taken along the line AA of Fig. 16B;
[0086] Fig. 17A is a view of another embodiment of a closure device;
[0087] Fig. 17B is a plan view of the closure device;
[0088] Fig. 17C is a sectional view taken along the line AA of Fig. 17B;
[0089] Fig. 18A is a view of yet another embodiment of a
[0090] locking device;
[0091] Fig. 18B is a plan view of the closure device;
[0092] Fig. 18C is a sectional view taken along the line AA of Fig. 18B;
[0093] Fig. 19 is a sectional view according to Fig. 18C, showing a
[0094] Blocking element adjusted out of blocking position;
[0095] Fig. 20 the sectional view according to Fig. 19, with the locking device unlocked;
[0096] Fig. 21 is the sectional view according to Fig. 20, with the closure device open; Fig. 22A is a view of yet another embodiment of a closure device;
[0097] Fig. 22B is a plan view of the closure device; and
[0098] Fig. 22C is a sectional view along the line AA of Fig. 22B.
[0099] Figs. 1 to 6 show a first 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 and are connected to one another in a closed position shown in Fig. 3A such that the closure parts 2, 3 are fixed in position along all spatial directions X, Y, Z and are also rotationally fixed to one another.
[0100] The closure device 1 can be opened so that the closure parts 2, 3 can be separated from each other, as shown in Fig. 5A.
[0101] The first closure part 2 has a body 20 on which a receiving opening 203 with a II shape is formed.
[0102] The second closure part 3 has a base portion 30 extending transversely along a spatial direction Y and from which a plug-in portion 31 protrudes along a spatial direction X. With the plug-in portion 31, the second closure part 3 can be inserted into the receiving opening 203 on the body 20 of the first closure part 2, in order to close the closure device 1 in this way.
[0103] A first magnetic device 22 is arranged on the body 20. A second magnetic device 32 is arranged on the second closure part 3. The magnetic devices 22, 32 interact in a magnetically attractive manner, so that when the closure parts 2, 3 approach each other, they are drawn toward each other to close the closure device 1, and thus the plug-in section 31 is brought into engagement with the receiving opening 203 on the body 20 of the closure part 2 in a magnetically assisted manner.
[0104] Two locking elements 21 A, 21 B are pivotably arranged on the body 20 of the first closure part 2. The locking elements 21 A, 21 B are mounted on associated bearing elements 201 A, 201 B, each defining a bearing axis, in the form of bearing pins on a housing part 200 of the body 20 and can be pivoted relative to the body 20 via these bearing elements.
[0105] Each locking element 21A, 21B has a first locking section 210 and a second locking section 211. The locking sections 210, 211 of each locking element 21A, 21B protrude along different directions relative to the associated bearing element 201A, 201B and point approximately diametrically away from each other with respect to the associated bearing element 201A, 201B. The locking sections 210, 211 are thus functionally and spatially separated from each other in that the locking sections 210, 211 are spaced apart from each other in a pivot plane of the respective locking element 21A, 21B spanned by the spatial directions X, Y.
[0106] On each locking element 21A, 21B, an actuating portion 212 is formed, which lies in an associated opening 202A, 202B on the body 20 of the closure part 2 and is accessible from the outside, so that the locking elements 21A, 21B can be manually actuated by a user.
[0107] Third magnetic devices 213 are arranged on the locking elements 21 A, 21 B, which are designed in particular to cooperate with the second magnetic device 32 of the second closure part 3 in the closed position.
[0108] In the closed position of the closure device 1, shown in Fig. 3A to 3D, the locking sections 210, 211 of each locking element 21A, 21B engage in a respective associated engagement device 310A, 310B, 311A, 311B on the closure part 3, as can be seen from the sectional view according to Fig. 3D. First engagement devices 310A, 310B, which are associated with the first locking sections 210 of the locking elements 21A, 21B, are formed in the form of engagement openings on the plug-in section 31. Second engagement devices 311A, 311B, in contrast, are formed on the base section 30 of the closure part 3 in the form of downwardly open engagement openings (with respect to the spatial direction X).
[0109] In the closed position according to Fig. 3A to 3D, the closure parts 2, 3 are placed against one another and connected to one another, so that the closure parts 2, 3 are held in a fixed position and rotationally fixed relative to one another. The magnetic devices 22, 32 interact in a magnetically attractive manner. In addition, the magnetic devices 213 of the locking elements 21A, 21B interact in a magnetically attractive manner with the magnetic device 32 of the closure part 3, so that the locking elements 21A, 21B are loaded in the direction of a locking position shown in Fig. 3D, in which the locking sections 210, 211 engage with the associated engagement devices 310A, 310B, 311A, 311B on the closure part 3.
[0110] The engagement of the first locking sections 210 of the locking elements 21A, 21B with the associated engagement devices 31OA, 31OB in the form of the engagement openings on the plug-in section 31 is such that the closure part 3 is locked relative to the closure part 2 along the spatial direction X and also along the spatial direction Z perpendicular to the spatial directions X, Y. When the locking elements 21A, 21B are in the locked position, the plug-in section 31 cannot be disengaged from the receiving opening 203 along the spatial direction X and also not along the spatial direction Z because the engagement of the engagement sections 210 in the engagement devices 31OA, 31OB in the form of the engagement openings on the plug-in section 31 counteracts this.
[0111] The engagement of the second engagement sections 211 in the associated engagement devices 311A, 311B on the base section 30 of the closure part 3 also blocks a movement of the closure part 3 along the spatial direction Z relative to the closure part 2, but does not block a movement of the closure parts 2, 3 relative to one another along the spatial direction X. The additional engagement of the second engagement sections 211 of the blocking elements 21A, 21B with the associated engagement devices 311A, 311B on the base section 30 of the closure part 3 has the effect, in particular, that in addition to a linear adjustment of the closure parts 2, 3 relative to one another along the spatial directions X, Z, a rotational adjustment of the closure parts 2, 3 about the spatial direction Y is also blocked.
[0112] To open the closure device 1, the locking elements 21A, 21B on the closure part 2 can be manually actuated by a user, for example by a user pressing inwards with two fingers on the actuating sections 212 of the locking elements 21A, 21B along an actuating direction B, so that the locking elements 21A, 21B on the closure part 2 are adjusted, as can be seen from Fig. 4. As a result, the engagement of the engagement sections 210 with the engagement devices 31OA, 31OB on the plug-in section 31 of the closure part 3 and also the engagement of the engagement sections 211 with the engagement devices 311A, 311B on the base section 30 is canceled, so that the locking elements 21A, 21B are unlocked. The closure direction 1 can thus be opened. The locking parts 2, 3 can be separated from each other in a variable manner after unlocking the locking elements 21 A, 21 B.
[0113] Thus, the closure parts 2, 3 can be pulled apart from each other along the spatial direction X, as shown in Fig. 5A, 5B.
[0114] In addition, the closure parts 2, 3 can also be separated from each other along the spatial direction Z, as shown in Fig. 6.
[0115] An oblique movement with movement vector components along the spatial direction X and along the spatial direction Z is also conceivable.
[0116] It is also conceivable for the closure parts 2, 3 to rotate relative to one another around the spatial direction Y.
[0117] When the locking device 1 is open, as can be seen for example from Fig. 5B, the locking elements 21 A, 21 B are preferably held in their unlocked release position.
[0118] If the closure device 1 is to be closed again, the closure parts 2, 3 can be placed against one another so that the plug-in section 31 is inserted into the receiving opening 203. The closure parts 2, 3 can be connected to one another linearly along the spatial direction X or along the spatial direction Z or along an oblique movement with movement components along the spatial direction X and the spatial direction Z or also rotationally with a rotational movement about the spatial direction Y, analogous to the mobility of the closure parts 2, 3 relative to one another for opening the closure device 1.
[0119] The locking elements 21A, 21B are held in the unlocked release position according to Fig. 5B, for example, by magnetic interaction of the magnetic devices 213 with the magnetic device 22 of the closure part 2 when the closure device 1 is open. In another embodiment, shown in Fig. 7, additional magnetic devices 23, for example in the form of passive magnetic armatures, can be provided on the closure part 2, which interact with the magnetic devices 213, formed for example by permanent magnets, on the locking elements 21A, 21B and load the locking elements 21A, 21B in the direction of the release position. When the closure device 1 is open, the locking elements 21A, 21B are thus held in the release position by magnetic interaction between the magnetic devices 213, 23.
[0120] If the closure device 1 is closed and the plug-in section 31 of the closure part 3 is in engagement with the associated receiving opening 203 on the body 20 of the closure part 2, as shown in Fig. 7, the magnetic attraction between the magnetic devices 213 on the blocking elements 21 A, 21 B and the magnetic device 32 on the closure part 3 overlaps and exceeds the magnetic attraction between the magnetic devices 213 and the magnetic devices 23, so that the blocking elements 21 A, 21 B are moved in the direction of the blocking position and, in the closed position of the closure device 1, are in the blocking position in which the engagement sections 210, 211 of the blocking elements 21 A, 21 B are in engagement with the associated engagement devices 310A, 310B, 311 A, 311 B of the closure part 3.
[0121] In yet another embodiment, shown in Fig. 8, the locking elements 21A, 21B are spring-loaded relative to the body 20 of the closure part 2 in the direction of the release position via mechanical spring elements 24. If the closure device 1 is opened, the locking elements 21A, 21B are moved into the release position by the spring elements 24 on the body 20 of the closure part 2 and held there. If the closure device 1 is closed, the magnetic force of attraction between the magnetic devices 213 on the locking elements 21A, 21B and the magnetic device 32 on the closure part 3 overrides the spring-mechanical preload and exceeds it, so that the locking elements 21A, 21B are moved into the locking position according to Fig. 8 due to the magnetic interaction with the magnetic device 32 on the closure part 3.
[0122] In an embodiment illustrated in Figs. 9A-9C to 11, locking elements 21A, 21B do not have externally accessible actuating sections operable by a user, as in the previously described embodiments. Instead, actuating elements 33A, 33B are arranged on the closure part 3, which can be actuated along an actuating direction B on the closure part 3, pointing along the spatial direction Y, and act on the locking elements 21A, 21B to adjust the locking elements 21A, 21B.
[0123] With regard to the locking function of the locking elements 21A, 21B in the closed position, illustrated in Figs. 9A-9C, the locking elements 21A, 21B are functionally identical to the locking elements 21A, 21B of the previously described embodiments, so reference should be made to the explanations in this regard. In particular, in the closed position, as can be seen from Fig. 9C, locking sections 210 of the locking elements 21A, 21B engage with associated engagement devices 310A, 310B, 311A, 311B on the closure part 3, so that the closure parts 2, 3 are locked relative to one another.
[0124] By a user acting on the actuating elements 33A, 33B along the actuating direction B and pressing them towards one another, the locking elements 21A, 21B can be adjusted from the locked position according to Fig. 9C and transferred into the release position according to Fig. 10. The locking effect of the locking elements 21A, 21B is thus canceled, so that the closure parts 2, 3 can be separated from one another, as shown in Fig. 11. Again, as explained with reference to the exemplary embodiment according to Figs. 1-6, the closure parts 2, 3 can be moved towards one another along the spatial direction X, along the spatial direction Z perpendicular to the spatial directions X, Y, or by a rotational movement about the spatial direction Y in order to separate the closure parts 2, 3 from one another.
[0125] In an embodiment illustrated in Figs. 12A-12C to 14, the locking elements 21A, 21B are functionally configured as in the embodiment according to Figs. 9A-9C to 11. In particular, the locking elements 21A, 21B do not have any user-operable, externally accessible actuating sections. In the locking position illustrated in Fig. 12C, the locking elements 21A, 21B engage with locking sections 210, 211 in associated engagement devices 310A, 310B, 311A, 311B on the closure part 3 and thus lock the closure parts 2, 3 relative to one another in the closed position.
[0126] In the embodiment illustrated in Figs. 12A-12C to 14, the plug-in section 31 of the closure part 3 has elastically deflectable deflection arms 313A, 313B, on which the engagement devices 310A, 310B are formed in the form of engagement openings. The deflection arms 313A, 313B are, in particular, elastically deflectable in an adjustment plane spanned by the spatial directions X, Y, by a user acting on the deflection arms 313A, 313B via grip sections 314A, 314B formed on the deflection arms 313A, 313B and pressing them toward each other, as can be seen in Figs. 13A and 13B.
[0127] In the closed position of the locking device 1 , according to the position according to
[0128] Fig. 12C, the deflection arms 313A, 313B assume a relaxed position in which the deflection arms 313A, 313B are not deflected and the engagement portions 210 of the locking elements 21A, 21B are engaged with the engagement devices 310A, 310B on the deflection arms 313A, 313B.
[0129] By deflecting the deflection arms 313A, 313B, as shown in Fig. 13A, 13B, the engagement of the engagement devices 310A, 310B on the deflection arms 313A, 313B with the respectively associated locking section 210 of the locking elements 21A, 21B can be canceled, so that the closure parts 2, 3 can be pulled away from one another along the spatial direction X, as can be seen from Fig. 14. By deflecting the deflection arms 313A, 313B, the locking effect is thus canceled along the spatial direction X, but not along the spatial direction Z, because the engagement sections 211 of the locking elements 21A, 21B remain in engagement with the engagement devices 311A, 311B, as can be seen from Fig. 13B.
[0130] If the closure parts 2, 3 have been moved towards each other for opening by a comparatively small adjustment path along the spatial direction X, the engagement of the engagement sections 211 with the associated engagement devices 311A, 311B is also canceled, so that the closure parts 2, 3 can be freely separated from each other.
[0131] Otherwise, the embodiment according to Fig. 12A-12C to 14 is functionally comparable, in particular to the embodiments described above with reference to Fig. 1-6, so that reference should also be made to the explanations in this regard.
[0132] In an embodiment shown in Fig. 15A to 15E, the locking elements 21A, 21B are functionally identical to the locking elements 21A, 21B of the embodiments according to Fig. 9A-9C to 11 and 12A-12C to 14.
[0133] In the embodiment illustrated in Figs. 15A to 15E, the plug-in portion 31 is rigidly formed on the base portion 30 of the closure part 3. An actuating element 34 is rotatable on the plug-in portion 31 about a rotational axis 340 extending along the spatial direction Y and supports the magnetic device 32 of the closure part 3, so that the position of the magnetic device 32, formed by a permanent magnet, on the plug-in portion 31 can be changed.
[0134] In the closed position, the magnetic device 32, as shown in Fig. 15C, interacts in a magnetically attractive manner with the magnetic devices 213 on the locking elements 21A, 21B, so that the locking elements 21A, 21B are loaded in the direction of the locked position and the engagement sections 210, 211 of the locking elements 21A, 21B are in engagement with the engagement devices 310A, 310B, 311A, 311B on the closure part 3. The magnetic attraction is brought about by the magnetic devices 213 with unlike magnetic poles S, N magnetic poles N, S facing the magnetic device 32, as can be seen from the sectional view according to Fig. 15C.
[0135] If the actuating element 34 is rotated about the rotation axis 340 along a rotation direction D by 180° on the plug-in section 31, as can be seen from Fig. 15D and 15E, the position of the magnetic poles S, N of the magnetic device 32 is reversed, as can be seen from Fig. 15E. Now, the magnetic devices 213 of the locking elements 21A, 21B, on the one hand, and the magnetic device 32, on the other hand, face each other with like-named poles S, N, so that the magnetic devices 213, 32 interact in a magnetically repulsive manner.
[0136] The locking elements 21 A, 21 B are thus magnetically transferred into the release position according to Fig. 15E, and the locking device 1 is unlocked so that the locking parts 2, 3 can be separated from each other.
[0137] An embodiment shown in Fig. 16A-16C is similar to the embodiment according to Fig. 1-6.
[0138] In contrast to the embodiment according to Fig. 1-6, magnetic devices 213 are arranged on the locking elements 21A, 21B on a side of the bearing element 201A, 201B facing the engagement sections 211. To load the locking elements 21A, 21B into the locking position according to Fig. 16C, the magnetic devices 213 interact in a magnetically repulsive manner with the magnetic device 32 of the closure part 3.
[0139] Otherwise, the embodiment according to Fig. 16A-16C is functionally identical to the embodiment according to Fig. 1-6.
[0140] An embodiment shown in Fig. 17A-17C is similar to the embodiment according to Fig. 1-6.
[0141] In contrast to the embodiment according to Fig. 1 - 6, the engagement sections 211 of the locking elements 21 A, 21 B are designed as hooks which, through engagement with the engagement devices 311 A, 311 B on the closure part 3, also provide a locking effect along the spatial direction X, so that both engagement sections 210, 211 of the locking elements 21 A, 21 B lock both along the spatial direction X and along the spatial direction Z through engagement with the associated engagement devices 31 OA, 31 OB, 311 A, 311 B.
[0142] Otherwise, the embodiment is functionally identical to the embodiment according to Fig. 1-6, so that reference should also be made to the explanations therein.
[0143] An embodiment shown in Fig. 18A-18C to 21 is similar to the embodiment according to Fig. 12A-12C to 14. In particular, elastically deflectable deflection arms 313A, 313B are formed on the plug-in section 31, which carry the engagement devices 310A, 310B in the form of the engagement openings.
[0144] In the illustrated embodiment, a blocking element 35 is provided on the closure part 3, which is adjustable relative to the closure part 3 along the spatial direction X. The blocking element 35 has a blocking section 350, which is displaceable in an opening 315 formed between the deflection arms 313A, 313B.
[0145] In a blocking position, shown in Fig. 18C, the blocking section 350 lies between the deflection arms 313A, 313B and in this way blocks an elastic deflection movement of the deflection arms 313A, 313B. In the closed position of the closure device 1 according to Fig. 18C, the deflection arms 313A, 313B are thus blocked, so that the engagement between the locking elements 21A, 21B with the associated engagement devices 310A, 310B, 311A, 311B locks the closure parts 2, 3 to one another.
[0146] To open the closure device 1, the blocking element 35 can be moved in an unlocking direction C into a position on the closure part 3 in which the blocking section 350 no longer blocks the deflection arms 313A, 313B, as can be seen from Fig. 19.
[0147] In the illustrated embodiment, the deflection arms 313A, 313B are shaped so as to be so soft and elastic that when the closure parts 2, 3 are loaded relative to one another along the spatial direction X, the deflection arms 313A, 313B automatically deflect elastically inwards, as shown in Fig. 20. The closure parts 2, 3 can thus be separated from one another, as can be seen from Fig. 21. If the closure parts 2, 3 have been moved relative to one another by a small adjustment path along the spatial direction X and the engagement of the engagement sections 211 of the locking elements 21A, 21B with the associated engagement devices 311A, 311B has thereby been canceled, the closure parts 2, 3 can be separated from one another in free movement.
[0148] When the closure device 1 is open, the locking elements 21A, 21B are held in the release position, for example, by magnetic interaction of the magnetic devices 213 with the magnetic device 22 of the closure part 2. Additionally or alternatively, a spring preload can act on the locking elements 21A, 21B in the direction of the release position.
[0149] In yet another embodiment shown in Fig. 22A-22C, the locking elements 21A, 21B, in contrast to the embodiment according to Fig. 1-6, do not have any magnetic devices 213, but are spring-mechanically prestressed relative to one another via a prestressing element 25 in the form of an elastically deformable spring element formed integrally with the locking elements 21A, 21B.
[0150] If the locking elements 21 A, 21 B are moved out of the locking position according to Fig. 22C by manual actuation along the actuation direction B on the actuation sections 212, this occurs against the spring preload of the prestressing element 25. If the closure device 1 is closed, the locking elements 21 A, 21 B automatically engage with the associated engagement devices 310A, 310B, 311A, 311B due to the spring preload of the prestressing element 25, so that the locking effect of the locking elements 21 A, 21 B in the closed position according to Fig. 22C is automatically established when the closure device 1 is closed.
[0151] Otherwise, the embodiment according to Fig. 22A-22C is functionally identical to the embodiment according to Fig. 1-6, so that reference should also be made to the explanations therefor.
[0152] The concept underlying the invention is not limited to the previously described embodiments, but can also be implemented in other ways. The locking device can be used to connect any number of assemblies to one another.
[0153] For example, the closure device can be used as a closure for a bracelet, for example on a wristwatch or a piece of jewelry.
[0154] In another embodiment, the closure device can provide a webbing fastener for connecting two straps together. Other possible uses for the closure device are conceivable and possible.
[0155] List of reference symbols
[0156] 1 locking device
[0157] 2 closure part 20 body
[0158] 200 housing part
[0159] 201A, B bearing element
[0160] 202A, B Opening
[0161] 203 Receiving opening 21A, B Locking element
[0162] 210 restricted section
[0163] 211 restricted section
[0164] 212 operating section
[0165] 213 Magnetic device 214 Support section
[0166] 22 Magnetic device
[0167] 23 Magnetic device
[0168] 24 Preload element
[0169] 3 Closure part 30 Base section
[0170] 31 plug-in section
[0171] 31 OA, B intervention device (intervention opening)
[0172] 311A, B intervention device (intervention opening)
[0173] 312 Central section 313A, B Deflection arm
[0174] 314A, 314B handle section
[0175] 315 Opening
[0176] 32 Magnetic device
[0177] 33A, 33B Actuating element 34 Actuating element
[0178] 340 rotation axis
[0179] 35 Blocking element
[0180] 350 blocking section
[0181] 4, 5 Assemblies B Actuation direction
[0182] C Unlocking direction
[0183] D Direction of rotation X Spatial direction
[0184] Y spatial direction
[0185] Z spatial direction
Claims
Claims 1 . Closure device (1) for connecting two assemblies (4, 5) to one another, comprising a first closure part (2) which has a body (20), a receiving opening (203) formed on the body (20) and at least one locking element (21A, 21B) which can be adjusted relative to the body (20), and a second closure part (3) which has a plug-in section (31), wherein in order to close the closure device (1), the plug-in section (31) can be inserted into the receiving opening (203), wherein in a closed position the plug-in section (31) engages in the receiving opening (203) and the second closure part (3) is locked relative to the first closure part (2) by the at least one locking element (21A, 21B), so that the first closure part (2) and the second closure part (3) are held against one another, wherein in order to separate the first closure part (2) and the second closure part (3) from one another, the locking effect of the at least one locking element (21A,21 B) and the first closure part (2) and the second closure part (3) can be separated from one another by removing the plug-in section (31) from the receiving opening (203), characterized in that the at least one blocking element (21 A, 21 B) has a first blocking section (210) and a second blocking section (211) and the second closure part (3) has a first engagement device (31 0A, 31 0B) and a second engagement device (311A, 311 B), wherein in the closed position the blocking element (21 A, 21 B) assumes a blocking position relative to the body (20), in which the first blocking section (210) is in engagement with the first engagement device (31 0A, 31 0B) and the second blocking section (211) is in engagement with the second engagement device (311A, 311 B), and for canceling the blocking effect of the at least one blocking element (21 A, 21 B) the first locking portion (210) is disengaged from the first engagement device (31 OA,31 0B) and / or the second locking portion (211) can be disengaged from the second engagement device (311 A, 311 B).
2. Closure device (1) according to claim 1, characterized in that the plug-in section (31) can be inserted into the receiving opening (203) along a first spatial direction (X) and along a second spatial direction (Z) perpendicular to the first spatial direction (X).
3. Closure device (1) according to claim 2, characterized in that in the closed position by the engagement of the first locking portion (210) in the first engagement device (310A, 310B) and the engagement of the second locking portion (211) in the second engagement device (311A, 311B) the plug-in portion (31) is locked in the receiving opening (203) both along the first spatial direction (X) and along the second spatial direction (Z).
4. Closure device (1) according to claim 2 or 3, characterized in that the engagement of the first engagement portion (210) with the first engagement device (31 OA, 31 OB) blocks a relative movement of the first closure part (2) and the second closure part (3) to one another both along the first spatial direction (X) and along the second spatial direction (Z).
5. Closure device (1) according to one of claims 2 to 4, characterized in that the engagement of the second engagement portion (211) with the second engagement device (311A, 311B) blocks a relative movement of the first closure part (2) and the second closure part (3) to one another along the second spatial direction (Z), but not along the first spatial direction (X).
6. Closure device (1) according to one of claims 2 to 5, characterized in that an adjustment plane is spanned by the first spatial direction (X) and a third spatial direction (Y) perpendicular to the first spatial direction (X) and to the second spatial direction (Z), wherein, in order to cancel the blocking effect of the at least one blocking element (21A, 21B), the first blocking section (210) in the adjustment plane can be brought out of engagement with the first engagement device (310A, 310B) and / or the second blocking section (211) in the adjustment plane can be brought out of engagement with the second engagement device (311A, 311B).
7. Closure device (1) according to one of claims 2 to 6, characterized in that the second closure part (3) has a base portion (30) which projects transversely to the first spatial direction (X) relative to the plug-in portion (31).
8. Closure device (1) according to claim 7, characterized in that the second engagement means (311A, 311B) is formed on the base portion (30).
9. Closure device (1) according to one of the preceding claims, characterized in that the first engagement means (310A, 310B) is formed on the plug-in portion (31).
10. Closure device (1) according to claim 9, characterized in that the first engagement device (31 OA, 31 OB) is formed by an engagement opening on the plug-in section (31).
11. Closure device (1) according to one of the preceding claims, characterized in that the first locking section (210) and the second locking section (211) are spatially separated from one another.
12. Closure device (1) according to one of the preceding claims, characterized in that the first engagement device (31 OA, 31 OB) and the second engagement device (311 A, 311 B) are spatially separated from one another.
13. Closure device (1) according to one of the preceding claims, characterized in that the at least one locking element (21 A, 21 B) is pivotally mounted about a bearing axis to the body (20) of the first closure part (2).
14. Closure device (1) according to claim 13, characterized in that the first engagement portion (210) protrudes radially to the bearing axis along a first direction and the second engagement portion (211) protrudes radially to the bearing axis along a second direction 15. Closure device (1) according to claim 13 or 14, characterized in that the first engagement portion (210) and the second engagement portion (211) protrude in opposite directions to the bearing element (201 A, 201 B) with respect to the bearing axis.
16. Closure device (1) according to one of the preceding claims, characterized in that the first closure part (2) has a first magnetic device (22) and the second closure part (3) has a second magnetic device (32), wherein the first magnetic device (22) and the second magnetic device (32) interact in a magnetically attractive manner in order to magnetically assist the closing of the closure device (1). Closure device (1) according to claim 16, characterized in that the at least one blocking element (21 A, 21 B) has a third magnetic device (213) which, in the closed position, cooperates with the second magnetic device (32) in a magnetically attractive manner, so that the at least one blocking element (21 A, 21 B) is loaded in the direction of the blocking position by the magnetic attraction. Closure device (1) according to one of the preceding claims, characterized in that the at least one blocking element (21 A, 21 B) can be adjusted from the blocking position into a release position relative to the body (20) in order to cancel the blocking effect. Closure device (1) according to claim 18, characterized in that the first closure part (2) has a pretensioning element (24) which pretensions the at least one blocking element (21 A, 21 B) relative to the body (20) in the direction of the release position.Closure device (1) according to claim 18 or 19, characterized in that the at least one blocking element (21A, 21B) is magnetically held in the release position relative to the body (20) when the closure device (1) is open. Closure device (1) according to one of claims 18 to 20, characterized in that the at least one blocking element (21A, 21B) has an actuating section (212) for actuation by a user for transferring from the blocking position to the release position. Closure device (1) according to one of claims 18 to 21, characterized in that the second closure part (3) has an actuating element (33A, 33B; 34) which can be actuated on the second closure part (3) to transfer the at least one blocking element (21A, 21B) into the release position.Closure device (1) according to claim 22, characterized in that the actuating element (33A, 33B) is designed to act mechanically for adjustment on the at least one locking element (21 A, 21 B) on the first closure part (2). Closure device (1) according to claim 22, characterized in that the actuating element (34) is designed to adjust a magnetic device on the second closure part (3) in order to transfer the at least one locking element (21A, 21B) into the release position through magnetic interaction of the at least one locking element (21A, 21B) with the magnetic device. Closure device (1) according to one of the preceding claims, characterized in that the plug-in section (31) has an elastically deflectable deflection arm (313A, 313B), wherein the first engagement device (310A, 310B) is formed on the deflection arm (313A, 313B). Closure device (1) according to claim 25, characterized in that the deflection arm (313A, 313B) on the second closure part (3) is deflectable in order to disengage the first locking section (210) from the first engagement device (310A, 310B).Closure device (1) according to claim 25 or 26, characterized in that the second closure part (3) has a blocking element (35) which is designed to lock the deflection arm (313A, 313B) on the second closure part (3) in a blocking position, so that the deflection arm (313A, 313B) cannot be brought out of engagement by the first engagement device (31 OA, 31 OB), wherein the blocking element (35) is adjustable from the blocking position, so that the deflection arm (313A, 313B) can be brought out of engagement by the first engagement device (31 OA, 31 OB).