Connecting device for releasably connecting two components

Abstract

A connecting device for detachably connecting two components (1, 2) comprises a first connecting component (10) and a second connecting component (20), wherein the first connecting component is associated with the first component of the components (1, 2) and forms a face section (100), and the second connecting component is associated with the second component of the components (1, 2) and has a negative pressure element (23), which can be connected to the face section (100) of the first connecting component (10) along an attachment direction (A) and abuts against the face section (100) under the action of negative pressure in the connection position. The first connecting component (10) is supported movably relative to the second connecting component (20) along a plane perpendicular to the attachment direction (A) in the connection position, wherein the position of the negative pressure element (23) relative to the face section (100) can be changed by the movement of the first connecting component (10) relative to the second connecting component (20), so that the negative pressure effect can be eliminated to disconnect the first connecting component (10) and the second connecting component (20) from each other.

Description

Technical Field

[0001] The invention relates to a connection device for detachably connecting two components. The connection device comprises a first connection part, which is associated with a first component of the components and forms a face section, and a second connection part, which is associated with a second component of the components and comprises a negative pressure element, which can be connected to the face section of the first connection part along an attachment direction and abuts against the face section in a connection position and is held on the face section when subjected to negative pressure. Background Art

[0002] This connecting device includes: a first connecting part associated with a first component in the assembly and constituting a facial segment; and a second connecting part associated with a second component in the assembly and having a negative pressure element, which can be connected to the facial segment of the first connecting part along an attachment direction, abuts against the facial segment in the connected position, and is maintained on the facial segment when subjected to negative pressure.

[0003] In the present case, the connection device should be able to be used in particular to fasten an electronic device to an associated component. Thus, the connection device can, for example, enable: a camera to be fastened to a helmet (e.g. a ski helmet or a bicycle helmet) or a mobile phone or other electronic device to be fastened in or to an associated component, for example to a vehicle, for example to the windshield or to the dashboard of a motor vehicle or to the handlebars of a bicycle or motorcycle.

[0004] If a camera is fastened to a helmet (e.g. a ski helmet or a bicycle helmet) or a mobile phone is fastened to an associated component, impulse-like impact forces may act during use which must be absorbed and dissipated and in particular should not lead to the camera or mobile phone becoming detached. Therefore, a connection device for fastening electronic devices (e.g. a camera or a mobile phone) should be able to absorb the short-acting, impulse-like impact forces.

[0005] In order to fix completely different components to each other, for example also for fixing electronic devices in the form of mobile phones or navigation devices in vehicles, connection devices are known which provide support by means of negative pressure. Thus, from US 2013 / 0323388 A1 a connection device is known which uses a negative pressure element in the form of a suction cup in order to fix a mobile phone to the windshield of a vehicle. For this purpose, a suction cup is attached to the windshield, wherein a magnetic element is arranged on the suction cup, which can interact with a magnetically active element located on the side of the windshield in order to improve the hold on the windshield.

[0006] In the connection device known from US Pat. No. 5,192,043 for fastening an alarm device to a metal surface, a magnetic rubber surface is attached to the metal surface, a vacuum being generated during the attachment so that the alarm device is held on the metal surface by the magnetic forces between the rubber surface and the metal surface and by the negative pressure.

[0007] The connecting device known from EP 0 689 966 B1 has a magnetic contact plate on which a suction cup is arranged. With the aid of the connecting device, a ski carrier can be fixed to the roof of a vehicle.

[0008] On the one hand, such connection devices should be easy to close in order to establish a connection between the associated components. However, it is also desirable that such connection devices are easy to open, in particular to avoid sudden tearing when overcoming negative pressure and possibly also overcoming the magnetic connection. In particular when used with electronic devices, it is further desirable in this case that the connection device is space-saving and simple in design by using a small number of components.

[0009] A connection device is known from WO 2019 / 086648 A2, in which a closure module has a negative pressure element that can be attached to an associated attachment part so as to interact with the attachment part by negative pressure in the connected position. An adjustment element can be adjusted so as to open a flow opening so as to disengage the closure module from the attachment part. Summary of the invention

[0010] The object of the invention is to provide a connecting device which is easy to use, in particular easy to close, but also easy to open again, which advantageously connects the associated components even when subjected to impacts and which has a simple and space-saving construction.

[0011] This object is achieved by the subject matter having the features of the invention.

[0012] Accordingly, in the connected position, the first connecting component is movably supported relative to the second connecting component along a plane perpendicular to the attachment direction, wherein the position of the negative pressure element relative to the facial segment can be changed by moving the first connecting component relative to the second connecting component so that the negative pressure effect can be eliminated to disengage the first connecting component and the second connecting component from each other.

[0013] The connecting device can be designed in a simple manner. In addition, the connecting device can be designed to save space. This makes it possible in particular to use the connecting device to hold electronic devices, such as cameras or mobile phones. For example, the mobile phone can be fixed to an associated component, such as in a vehicle, without the connecting device taking up significant installation space, especially in the axial direction along the attachment direction.

[0014] In the connection device, the connection between the components to be fixed to each other is established in such a way that the connection parts are attached to each other in an attachment direction. During the attachment, a sealed space is generated between the negative pressure element of the second connection part and the surface section of the first connection part, so that the components are held to each other due to the negative pressure effect. Such a connection can be particularly shock-resistant, so that impact forces can be absorbed and discharged via the connection device.

[0015] With the aid of the connection device, for example a camera can be fastened to a helmet or a mobile phone to an associated component, for example in or on a vehicle, for example on the windshield or dashboard of a motor vehicle or on the handlebars of a bicycle or motorcycle.

[0016] In the connected position of the connecting device, the negative pressure element and the face segment can, for example, be flat against each other so that effectively no space is generated between the negative pressure element and the face segment. However, when the components are loaded relative to each other, a force can act on the first connecting component relative to the second connecting component, which acts in the direction of increasing or realizing the space between the negative pressure element and the face segment, which causes a negative pressure between the negative pressure element and the face segment and thus generates a retaining force, which retains the negative pressure element on the face segment and tends to become greater the stronger the load to which the connecting components are subjected relative to each other. When the connecting components are attached to each other and load forces act between the connecting components, the first connecting component is therefore retained on the second connecting component due to the negative pressure.

[0017] The connection device is opened by moving the connection parts relative to each other. The movement of the connection parts takes place tangentially to the face segments of the first connection part, i.e. in a plane perpendicular to the attachment direction. By moving the connection parts relative to each other, the position of the negative pressure element relative to the face segments changes, whereby the negative pressure effect is eliminated and the connection parts can be removed from each other.

[0018] In the connected position, the connecting parts are supported on one another so that they can (only) move in a defined manner relative to one another. Thus, in particular a guidance of the connecting parts relative to one another is provided via the support, wherein the movement of the connecting parts for disconnecting the connection device takes place along a plane perpendicular to the attachment direction, for example by rotating or displacing the connecting parts relative to one another.

[0019] The guidance can be provided, for example, via a swivel bearing or via a linear guidance, for example via an elongated hole guidance, along a straight or curved path of motion.

[0020] The guidance can also be implemented in this case such that the vacuum element and the face segment are movable relative to one another along a curved plane, in particular if the face segment itself—for example in the case of a helmet—is curved and the vacuum element is shaped accordingly.

[0021] In one embodiment, the negative pressure element is formed by an at least partially elastic cup-shaped element. The negative pressure element thus realizes an elastic suction cup-like component that can be arranged on the surface section of the first connecting part so that when elastically deformed, a vacuum is formed between the negative pressure element and the surface section, thereby providing a holding force that holds the assembly together.

[0022] In one design, the negative pressure element is configured so that when the first connecting component moves relative to the second connecting component, at least one section of the negative pressure element is tangent to the face section. When the connecting components move relative to each other, a relative movement of the negative pressure element relative to the face section occurs. Therefore, at least one section of the negative pressure element, in particular the edge section, cannot overlap with the face section, so that air can flow into the space between the negative pressure element and the face section, thereby eliminating the negative pressure effect between the negative pressure element and the face section. Thus, since the negative pressure element is tangent to the face section, the force effect caused by the negative pressure between the connecting components is eliminated, so that the connecting components can be disengaged from each other and the components associated with the connecting components can be removed from each other.

[0023] In one design, the face segment has an interruption. When the first connection part moves relative to the second connection part, the negative pressure element interacts with the interruption at the face segment, thereby eliminating the negative pressure effect between the negative pressure element and the face segment. In the connected position, the interruption does not interact with the negative pressure element, so that the interruption does not impair the negative pressure between the face segment and the negative pressure element. However, when the connection parts move relative to each other, the negative pressure element interacts with the interruption, so that air can flow between the negative pressure element and the face segment and eliminate the negative pressure effect.

[0024] The interruption can be formed, for example, as a recess on the face segment. If the vacuum element is adjusted relative to the face segment when the connecting parts are moved relative to one another, an edge segment of the vacuum element can enter the region of the interruption, so that air can flow between the vacuum element and the face segment via the interruption. The flat contact of the vacuum element on the face segment is thus interrupted by the interruption, so that the vacuum effect is eliminated when the interruption interacts with the vacuum element.

[0025] Instead of a recess formed into the facial segment, the interruption can, for example, be formed by a raised segment, such as a segment in the form of a web or a lump, so that when interacting with the interruption, the negative pressure element is removed from the facial segment in sections so that air can flow between the negative pressure element and the facial segment.

[0026] In one embodiment, the first connecting part is rotatably mounted relative to the second connecting part in the connected position about a rotation axis oriented in the attachment direction. Thus, when the connecting parts are attached to each other and connected to each other, the connecting parts can be rotated relative to each other about the rotation axis, so that the negative pressure element can be adjusted relative to the face segment by rotation so that the negative pressure effect can be eliminated.

[0027] Such a rotatable bearing can be formed, for example, via a journal on one of the connecting parts and an associated bearing opening on another of the connecting parts. For example, the journal can be formed on the second connecting part, while the first of the connecting parts has an associated bearing opening, into which the journal engages in the connected position of the connecting parts. Thus, via the rotatable bearing, the connecting parts can be moved relative to each other in a defined manner in order to release the connecting parts from the connected position.

[0028] In one design, the negative pressure element is configured not to be rotationally symmetrical about the axis of rotation. Therefore, when viewed along a plane perpendicular to the attachment direction, the negative pressure element is not circularly shaped, but has a shape different from a circle. For example, the negative pressure element can be polygonally shaped, such as rectangular or square. Therefore, when adjusting the negative pressure element relative to the face segment, it is possible to make the sections of the negative pressure element not overlap with the face segment, so that air can flow between the negative pressure element and the face segment and the negative pressure effect between the negative pressure element and the face can be eliminated.

[0029] Additionally or alternatively, the negative pressure element can be arranged eccentrically relative to the rotation axis. Due to the eccentric arrangement of the negative pressure element, a section of the negative pressure element can be misaligned with the facial segment by the rotation of the negative pressure element relative to the facial segment around the rotation axis, so that air can flow between the negative pressure element and the facial segment and the negative pressure effect between the negative pressure element and the facial segment can be eliminated.

[0030] In the case of such an eccentric arrangement, the negative pressure element can also be rotationally symmetrically shaped so as to have a circular shape when viewed along a plane perpendicular to the attachment direction. Due to the eccentricity in the arrangement relative to the axis of rotation, when the negative pressure element is rotated about the axis of rotation relative to the face segment, the edge segment of the negative pressure element can be tangential to the face segment, so that the negative pressure effect can be eliminated thereby.

[0031] In one embodiment, the first connecting part has at least one first magnetic element and the second connecting part has at least one second magnetic element. The at least one first magnetic element and the at least one second magnetic element act together in a magnetically attractive manner in the connected position, so that the connecting parts are magnetically held to each other by the magnetic action between the magnetic elements in addition to the negative pressure action.

[0032] The magnetic element of the first connecting part on the one hand and the magnetic element of the second connecting part on the other hand serve to provide a magnetic attraction force when the connecting parts are attached to each other, so that a negative pressure is generated in a magnetically assisted manner (preferably automatically). When attached, the connecting parts attract each other magnetically due to the magnetic interaction, so that a (virtually) vacuum is generated between the negative pressure element and the face section by pressing the negative pressure element, for example, in the form of an elastic cup-shaped element, against the face section of the first connecting part.

[0033] At least one first magnetic element and at least one second magnetic element can each be formed by a permanent magnet or also by an arrangement of multiple permanent magnets and can act together magnetically to close the connection device in that the first magnetic element and the second magnetic element point toward each other with different magnetic poles. However, it is also conceivable that one magnetic element is formed by a permanent magnet or an arrangement of multiple permanent magnets and the other magnetic element is formed by a magnetic armature made of ferromagnetic material.

[0034] In one design, when the first connecting part and the second connecting part are moved relative to each other to disengage the connecting parts, at least one first magnetic element of the first connecting part and at least one second magnetic element of the second connecting part are adjusted relative to each other. By adjusting the magnetic elements relative to each other, the magnetic attraction between the magnetic elements can be weakened in such a way that the magnetic elements do not overlap with each other.

[0035] If like magnetic poles approach one another when the connection parts are moved relative to one another to open the connection device, it is even possible to magnetically assist the separation of the connection parts from one another by generating magnetic repulsion forces between the magnetic elements so that the connection parts repel one another.

[0036] In one design, the first connecting part has a plurality of first magnetic elements distributed along a plane perpendicular to the attachment direction. The magnetic elements are therefore arranged staggered with respect to one another along the face section of the first connecting part, wherein the second magnetic element of the second connecting part can, for example, be associated with each of the first magnetic elements of the first connecting part. The first magnetic element and the second magnetic element act together magnetically when the connecting parts are attached to each other and also in the connected position of the connecting parts, so that the connecting parts are magnetically held on each other. By moving the connecting parts relative to each other, the magnetic elements can be made not to overlap with each other, so that the magnetic action between the magnetic elements is at least weakened so that the connecting parts can be disconnected from each other in a simple manner.

[0037] In one embodiment, it is conceivable that, for example, a first magnetic element in the form of a plurality of permanent magnets is arranged on the first connecting part, while a second magnetic element in the form of a ferromagnetic armature, for example, a ferromagnetic plate, is formed on the second connecting part. The magnetic element of the first connecting part and the ferromagnetic magnetic element of the second connecting part interact magnetically in order to bring about a magnetic hold between the connecting parts in the connected position and to hold the vacuum element against the face segment.

[0038] In one embodiment, the at least one first magnetic element and / or the at least one second magnetic element are arranged outside the negative pressure element when viewed along a plane perpendicular to the attachment direction. The first magnetic element and / or the second magnetic element thus act spatially away from the negative pressure element in order to provide a magnetic attraction force between the connected parts in the connected position.

[0039] In one design, the first magnetic element and / or the second magnetic element are (respectively) formed by an annular permanent magnet. The first magnetic element and / or the second magnetic element thus extend in an annular shape around the attachment direction, wherein the first magnetic element and the second magnetic element are relatively magnetically attracted when the connecting parts are attached to each other, thereby magnetically assisting the connection. The annular design can simplify the positioning of the connecting parts relative to each other during attachment. In particular, if the first magnetic element and the second magnetic element are respectively formed by annular permanent magnets, the magnetic elements realize automatic positioning of the connecting parts relative to each other in a plane transverse to the attachment direction, so that the connecting parts can be correctly positioned against each other to connect the components.

[0040] Since the first magnet element and / or the second magnet element are formed by (each one) annular permanent magnets, an advantageous positioning effect is produced in that a relatively small lateral offset between the magnet elements results in a relatively large magnetic lateral force between the magnet elements. Since the overlap in the radial direction occurs over a relatively small distance (corresponding to the radial thickness of the annular permanent magnets), the force change is relatively large when the magnet elements are radially offset from one another, which results in that the magnet elements are automatically positioned when offset due to the magnetic attraction force so that they overlap one another in the lateral direction and thus lie opposite each other in an overlapping manner.

[0041] If the first magnetic element and / or the second magnetic element are designed in an annular shape, then the first magnetic element and / or the second magnetic element can be closed in an annular shape or can also be open on the circumference at one or more locations. In this case, the cross section of the first magnetic element and / or the second magnetic element can be designed to be round, in particular circular, or polygonal, such as a quadrilateral.

[0042] In one design, the connection device has a locking device, which is used to lock the tangential movement of the first connection part and the second connection part relative to each other along a plane perpendicular to the attachment direction. The locking device is, for example, operable so that the first connection part and the second connection part move relative to each other along a plane perpendicular to the attachment direction so that the first connection part and the second connection part are disengaged from each other. When the locking device is in the locking position, the locking device is used to prevent the tangential movement of the connection parts relative to each other along a plane perpendicular to the attachment direction. Therefore, as long as the locking device prevents the connection parts from moving relative to each other, the connection device is prevented from being opened unintentionally. For example, the locking can be eliminated by operating the locking device, so that the connection parts can move relative to each other along a plane perpendicular to the attachment direction so that the negative pressure element can be adjusted relative to the facial segment in order to eliminate the negative pressure effect between the negative pressure element and the facial segment.

[0043] Such a locking device can be formed, for example, by a locking pin on one of the connecting parts which, in the locked position, engages in an associated locking opening on the other of the connecting parts and can be actuated in order to release the locking.

[0044] The locking can alternatively be formed, for example, by a locking element in the form of a block or the like, which in the locked position engages (positively) with an associated locking opening. In this case, unlocking can be achieved by applying a sufficiently large force between the connecting parts, for example a force that exceeds a predetermined limit force and causes the locking element to be released from the locking engagement with the locking opening.

[0045] For example, the limit force can be set by the attraction force of the magnetic element, which keeps the locking element engaged with the locking opening. When disengaging, the locking element hits the limiting edge of the locking opening, so that the locking element is disengaged from the locking opening overcoming the magnetic attraction force. The force required for this is set by the magnetic attraction force in combination with the shape of the locking element and the locking opening.

[0046] Alternatively, however, the limit force can also be set, for example, by a mechanical spring element which is deflected when the locking device is released and which, for example, preloads the locking element.

[0047] For example, the connection device is designed to fasten an electronic device to an associated component. For example, the connection device can be used to fasten a camera to a helmet, such as a ski helmet or a bicycle helmet. In another embodiment, the connection device can also be used to fasten a mobile phone or a navigation device or other electronic communication or information device, for example, in or on a vehicle, for example, on the windshield or dashboard of a motor vehicle or on the handlebars of a bicycle or motorcycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The idea underlying the present invention is explained in detail below with reference to the exemplary embodiments shown in the accompanying drawings. The accompanying drawings show:

[0049] Figure 1A A view showing an embodiment of a connecting device having a first connecting part and a second connecting part which can be attached to one another along an attachment direction;

[0050] Figure 1B Show according to Figure 1A A partial perspective view of the device;

[0051] Figure 2A A schematic view showing the connecting device in the connected position of two connecting parts;

[0052] Figure 2B A view showing the connecting parts in a rotated position relative to each other;

[0053] Figure 3A A view showing another embodiment of a connection device in a connected position of two connection parts;

[0054] Figure 3B A view showing the connecting parts in a rotated position relative to each other;

[0055] Figure 4A A view showing another embodiment of a connection device in a connected position of two connection parts;

[0056] Figure 4B A view showing the connecting parts in a rotated position relative to each other;

[0057] Figure 5A A view showing a further embodiment of a connection device in a connected position of two connection parts;

[0058] Figure 5B A view showing the connecting parts in a rotated position relative to each other; and

[0059] Figure 6 A view showing an embodiment of a locking device for locking a connecting part in a connected position. DETAILED DESCRIPTION

[0060] Figure 1A , 1B A view showing an embodiment of a connection device for connecting two components 1, 2 to each other. A first component 1, for example an electronic device in the form of a mobile phone or the like, is associated with a first connection part 10 of the connection device in this case, while a second component 2 is associated with a second connection part 20 of the connection device.

[0061] The first connecting part 10 can be designed, for example, as a housing element, for example as a mobile phone shell, in which the first component 1 can be accommodated. The first connecting part 10 forms a face section 100, which faces the second connecting part 20 and can be attached to the second connecting wheel 20 when the connecting device is used normally.

[0062] The second connecting member 20 has a body 200 on which a negative pressure element 23 is provided. The negative pressure element 23 has the shape of an elastically deformable cup-shaped element formed of an elastic material such as a silicone material and is firmly connected to the body 200.

[0063] In order to connect the connecting parts 10 , 20 to each other, the connecting parts 10 , 20 can be attached to each other along the attachment direction A. During the attachment, the negative pressure element 23 of the connecting part 20 is in contact with the surface segment 100 of the connecting part 10 , wherein during the attachment, the negative pressure element 23 is elastically deformed and a (virtual) vacuum is generated between the negative pressure element 23 and the surface segment 100 .

[0064] In the connected position, an underpressure therefore acts between the connecting parts 10 , 20 , as a result of which the connecting parts 10 , 20 are held against one another.

[0065] exist Figure 1A , 1B In the embodiment shown in , each of the connecting parts 10, 20 has a plurality of magnetic elements 11, 21, which act together magnetically when the connecting parts 10, 20 are attached to each other, so that the connecting parts 10, 20 are magnetically attracted to each other, thereby magnetically assisting the attachment of the negative pressure element 23 to the facial segment 100 to provide a negative pressure effect.

[0066] In the connected position, the connecting parts 10 , 20 are held to one another on the one hand by the vacuum effect between the vacuum element 23 and the surface segment 100 and also by the magnetic effect between the magnet elements 11 , 21 .

[0067] When the connecting parts 10, 20 are attached to each other, the bearing element 22 in the form of a journal on the connecting part 20 engages with the bearing element 12 in the form of a bearing opening on the face segment 100. In the connected position, the connecting parts 10, 20 are rotatably supported relative to each other about a rotation axis oriented along the attachment direction A via the bearing elements 12, 22.

[0068] As follows based on Figure 2A , 2BAs will be explained in the embodiments of 5A and 5B, the movably supported connection parts 10 and 20 on each other enable flexible opening of the connection device. Therefore, the connection parts 10 and 2 can be rotated relative to each other to open the connection device, whereby the negative pressure element 23 on the face segment 100 is adjusted and partially does not overlap with the face segment 100, so that air can flow between the negative pressure element 23 and the face segment 100, thereby eliminating the negative pressure effect between the negative pressure element 23 and the face segment 100.

[0069] Thus, by means of the connection device, a secure hold is achieved in the connection position due to the negative pressure effect and the magnetic attraction of the magnetic elements 11, 21, in particular also against impact loads. The connection device also allows easy, user-friendly opening by moving the connection parts 10, 20 relative to each other, wherein the movement of the connection parts 10, 20 relative to each other causes, on the one hand, the negative pressure to be eliminated, and on the other hand, also causes the magnetic elements 11 on the connection part 10 and the magnetic elements 21 on the connection part 20 to not overlap with each other, so that the magnetic attraction between the connection parts 10, 20 is weakened so that the connection parts 10, 20 can be easily and substantially effortlessly removed from each other.

[0070] According to Figure 2A , 2B The embodiment in FIG. 1 shows the opening process of the connection device, wherein Figure 2A , 2B The embodiment shown in FIG. 1 corresponds functionally to the embodiment according to Figure 1A , 1B Embodiment of the invention.

[0071] exist Figure 2A In the connection position shown in FIG, the vacuum element 23 of the connection part 20 lies flat against the surface section 100 of the connection part 10, wherein—when a load force is applied—a (virtually) vacuum is generated between the vacuum element 23 and the surface section 100, so that a vacuum acts between the connection parts 10, 20. In addition, the magnetic elements 11, 21 of the connection parts 10, 20 are in pairs in a magnetically attracted opposing position, so that the connection parts 10, 20 are also held magnetically to each other.

[0072] exist Figure 1A , 1B In the embodiments shown in FIGS. 2A and 2B , the negative pressure element 23 has a substantially rectangular shape in a plane perpendicular to the attachment direction A. The negative pressure element 23 is therefore designed not to be rotationally symmetrical with respect to the rotation axis D defined by the bearing of the bearing elements 12 , 22 .

[0073] When the connecting parts 10, 20 are rotated relative to each other along the pivot direction S about the rotation axis D, as in Figure 2BAs shown in FIG. 1 , the negative pressure element 23 on the face segment 100 is adjusted so that the negative pressure element 23 partially does not overlap with the face segment 100 . Figure 2B In the rotational position shown in , the sections 230 , 231 of the vacuum element 23 no longer bear flatly against the surface segment 100 , so that the vacuum element 23 is partially tangential to the surface segment 100 so that air can flow between the vacuum element 23 and the surface segment 100 .

[0074] exist Figure 2B In the rotational position shown in FIG, the negative pressure effect between the face segment 100 and the negative pressure element 23 and thus between the connecting parts 10, 20 is eliminated. In addition, the magnetic elements 11, 21 are rotated relative to each other so that they are no longer opposite each other in pairs, so that the magnetic attraction between the connecting parts 10, 20 is weakened or even converted into repulsion.

[0075] exist Figure 2B In the rotational position shown in , the connection sides 10 , 20 can thus be removed from one another without requiring a great expenditure of force for this purpose.

[0076] exist Figure 3A , 3B In the embodiment shown in FIG. 1 , the negative pressure element 23 is circular and thus rotationally symmetrically formed when viewed along a plane perpendicular to the attachment direction A. However, the rotation axis D defined by the bearing elements 12 , 22 is arranged eccentrically to the negative pressure element 23 , which results in that when the connecting parts 10 , 20 are rotated relative to each other, the edge section 230 of the negative pressure element 23 is tangential to the face section 100 , as can be seen from FIG. Figure 3B As seen in.

[0077] exist Figure 4A , 4B In the embodiment shown in FIG. 1 , the negative pressure element 23 is similar to the embodiment according to Figure 3A , 3B The embodiment of the invention is circularly shaped and arranged eccentrically with respect to the rotation axis D, wherein when the connecting parts 10, 20 are rotated relative to each other, the negative pressure element 23 does not intersect the face segment 100 tangentially, but interacts with an edge segment with an interruption 101 formed on the face segment 100, for example in the form of a recess or a protrusion. Due to the interaction with the interruption 101, a flow path is opened into the space between the face segment 100 and the negative pressure element 23, so that air can flow between the negative pressure element 23 and the face segment 100, thereby eliminating the negative pressure effect between the negative pressure element 23 and the face segment 100.

[0078] If the interruption 101 is formed as a recess formed into the face segment 100, then Figure 4B In the position of , a bypass-type flow path is opened via the interruption 101 .

[0079] If the interruption 1 is formed as a bulge, the vacuum element 23 is partially lifted from the surface segment 100 by the interaction with the interruption, so that the flow path below the vacuum element 23 is opened again.

[0080] according to Figure 5A , 5B The embodiment of Figure 4A , 4B In an embodiment, the interruption 101 is formed in the form of a recess or a ridge on the face section 100, which interacts with the negative pressure element 23 when the connecting parts 10, 20 are twisted. Figure 5A , 5B In the embodiment of Figure 4A , 4B In contrast to the embodiment of the present invention, the negative pressure element 23 is not circularly shaped, but has a rectangular basic shape. However, when the connecting parts 10, 20 are twisted relative to each other, the negative pressure element 23 and the negative pressure element 23 are twisted relative to each other according to the embodiment of the present invention. Figure 4A , 4B In the embodiment of FIG. 1 , the edge section interacts with the interruption portion 101 in a completely similar manner, so that the flow path below the negative pressure element 23 is opened, thereby eliminating the negative pressure effect.

[0081] Based on the above Figure 2A , 2B In all the embodiments described in 5A to 5B, the negative pressure between the connecting parts 10, 20 is eliminated by twisting the connecting parts 10, 20, wherein, in addition, as for the Figure 2A , 2B As described in the embodiment of the present invention, the magnetic interaction between the magnetic elements of the connecting parts 10 and 20 is weakened (for a better overview, the magnetic elements are Figure 3A , 3B 5A, 5B are not shown).

[0082] In all the above-described embodiments, the connection device can be constructed simply with fewer components. This results in low-cost production. In addition, the connection device can be constructed in a space-saving manner, especially along the attachment direction A, so that, especially in the connection position of the connecting parts 10, 20, the connection device does not significantly occupy the required axial structural space.

[0083] exist Figure 2A , 2B In the embodiment shown in FIG. 1 , a locking device 3 is schematically shown, which is used to lock the Figure 2A The connecting parts 10 , 20 are locked in the connected position and blocked against each other in the connected position so that the connecting parts 10 , 20 cannot be easily twisted relative to each other, at least without overcoming the locking.

[0084] An embodiment of such a locking device 3 is Figure 6 The locking device 3 is in this case realized by locking elements 30 , 31 , namely a locking element 31 in the form of a locking block on the connecting part 20 , which in the locking position engages in a locking manner with a locking element 30 in the form of a locking opening on the connecting part 10 .

[0085] In this case, the engagement is realized such that the locking can be released by a sufficient force between the connecting parts 10, 20. For this purpose, the locking element 31 is shaped as a rounded nub so that under a sufficient force, the locking element 31 can slide out of the locking opening 30 and thus be disengaged from the associated locking opening 30.

[0086] In an alternative design, the locking device 3 can also be designed so that the locking device 3 is operated to release the locking. For example, the locking device 3 can have a locking pin, which is disengaged from the associated locking opening to release the locking so that the connection parts 10, 20 can be twisted.

[0087] The idea underlying the invention is not limited to the exemplary embodiments described above, but can in principle also be realized in completely different ways.

[0088] In particular, completely different elements that work together to provide negative pressure are conceivable and feasible.In this regard, the above-described embodiments are to be understood as exemplary only.

[0089] A connection device of the type described here can be used to fix completely different components to each other. In particular, the use of the connection device is not limited to the examples shown here. Advantageously, the connection device can be used to fix electronic instruments, such as cameras or mobile phones. However, this is not restrictive.

[0090] For example, the connecting device can also be used as a closure element, for example a closure element for a seat belt.

[0091] Reference numerals list

[0092] 1 component (electronic equipment)

[0093] 10 Connecting parts (mobile phone case)

[0094] 100 facial segments

[0095] 101 interruption part (flow opening)

[0096] 11Magnetic elements

[0097] 12 Support device (journal)

[0098] 2 components (holding device)

[0099] 20 Connecting parts

[0100] 200 Body

[0101] 21 Magnetic element

[0102] 22 Support device (shaft journal)

[0103] 23 Negative pressure element

[0104] Sections 230 and 231

[0105] 3 Locking device

[0106] 30, 31 locking element

[0107] AAttachment Direction

[0108] D Rotation axis

[0109] S Pivot direction

Claims

1. A connection device for releasably connecting two components (1, 2), the connection device having a first connecting member (10) associated with a first one of the assemblies (1, 2) and constituting a face segment (100), and a second connecting component (20), which is associated with a second component of the components (1, 2) and has a negative pressure element (23), which can be connected to the face section (100) of the first connecting component (10) along an attachment direction (A) and abuts against the face section (100) in a connected position and is held on the face section (100) when subjected to negative pressure, It is characterized in that The first connecting part (10) is supported in the connecting position so as to be movably supported relative to the second connecting part (20) along a plane perpendicular to the attachment direction (A), wherein the position of the negative pressure element (23) relative to the face section (100) can be changed by the movement of the first connecting part (10) relative to the second connecting part (20) so that the negative pressure effect can be eliminated to disengage the first connecting part (10) and the second connecting part (20) from each other, The negative pressure element (23) is formed by an at least partially elastic cup-shaped element. The first connecting part (10) has at least one first magnetic element (11) and the second connecting part (20) has at least one second magnetic element (21), wherein the at least one first magnetic element (11) and the at least one second magnetic element (21) act together in the connected position in a magnetically attractive manner, and The first connecting part (10) and the second connecting part (20) are supported on each other in the connecting position so that the first connecting part (10) and the second connecting part (20) can be moved relative to each other in a defined manner along a plane perpendicular to the attachment direction (A).

2. The connection device according to claim 1, It is characterized in that The negative pressure element (23) is designed such that when the first connecting part (10) moves relative to the second connecting part (20), at least one section (230, 231) of the negative pressure element (23) is tangential to the surface section (100).

3. The connection device according to claim 1, It is characterized in that The face segment (100) has an interruption (101), wherein when the first connecting component (10) moves relative to the second connecting component (20), the negative pressure element (23) can interact with the interruption (101) at the face segment (100) to eliminate the negative pressure effect.

4. The connection device according to claim 3, It is characterized in that The interruption (101) is formed as a recess at the face section (100).

5. The connection device according to claim 1, It is characterized in that In the connected position, the first connecting part (10) is mounted rotatably relative to the second connecting part (20) about a rotation axis (D) oriented along the attachment direction (A).

6. The connection device according to claim 5, It is characterized in that One of the connecting parts (10, 20) has a journal (22), and the other of the connecting parts (10, 20) has a bearing opening (12) for rotatably supporting the journal (22).

7. The connection device according to claim 5, It is characterized in that The negative pressure element (23) is designed to be rotationally asymmetrical with respect to the rotation axis (D).

8. The connection device according to claim 5, It is characterized in that The negative pressure element (23) is arranged eccentrically with respect to the rotation axis (D).

9. The connection device according to claim 1, It is characterized in that When the first connecting component (10) and the second connecting component (20) move relative to each other, in order to make the first connecting component (10) and the second connecting component (20) disengage from each other, the at least one first magnetic element (11) and the at least one second magnetic element (21) are adjusted relative to each other so as to weaken the magnetic attraction between the at least one first magnetic element (11) and the at least one second magnetic element (21).

10. The connection device according to claim 1, It is characterized in that The first connecting component (10) has a plurality of first magnetic elements (11) distributed along a plane perpendicular to the attachment direction (A).

11. The connection device according to claim 10, It is characterized in that The second connecting component (20) has a plurality of second magnetic elements (21), each of which is associated with one of the first magnetic elements (11).

12. The connection device according to claim 1, It is characterized in that Viewed along a plane perpendicular to the attachment direction (A), the at least one first magnetic element (11) and / or the at least one second magnetic element (21) are arranged outside the negative pressure element (23).

13. The connection device according to claim 1, It is characterized in that The at least one first magnetic element (11) and / or the at least one second magnetic element (21) are formed by an annular permanent magnet.

14. The connection device according to claim 1, It is characterized in that A locking device (3) is provided for locking the tangential movement of the first connecting part and the second connecting part relative to each other along a plane oriented perpendicularly to the attachment direction (A).

15. The connection device according to claim 14, It is characterized in that The locking device (3) is operable to move the first and second connecting parts relative to each other along a plane perpendicular to the attachment direction (A) to disengage the first and second connecting parts from each other.

16. An electronic instrument comprising the connection device according to claim 1.

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