CONNECTING DEVICE WITH A VACUUM ELEMENT

Description

[0001] The invention relates to a connecting device for detachably connecting two assemblies according to the preamble of claim 1.

[0002] Such a connecting device comprises a locking module associated with a first assembly and including a housing assembly, an adjusting element adjustable to the housing assembly, and a vacuum element. The connecting device also includes an attachment assembly associated with a second assembly and comprising an attachment part. The locking module and the attachment part of the attachment assembly can be oriented together along an attachment direction, such that, in a connected position, when the first and second assemblies are subjected to load against each other, the locking module is held against the second assembly by a vacuum effect created by the vacuum element. The locking module has a first magnetic element, and the attachment assembly has a second magnetic element, wherein the first and second magnetic elements are magnetically attracted to each other in the connected position.The adjusting element is movable to eliminate the negative pressure effect of the vacuum element to the housing assembly in order to release a flow opening in the housing assembly for an inflow of air into a space between the vacuum element and the second of the assemblies.

[0003] Such a connecting device is known, for example, from WO 2021 / 043482 A1.

[0004] In this case, a connecting device is intended, in particular, to serve as a means of attaching an electronic device to an associated assembly. For example, the connecting device can enable the attachment of a camera to a helmet (such as a ski helmet or a bicycle helmet) or the attachment of a mobile phone or other electronic device in or on a vehicle, e.g., on the windshield or dashboard of a motor vehicle or on the handlebars of a bicycle or motorcycle.

[0005] When a camera is attached to a helmet, such as a ski or bicycle helmet, or a mobile phone is attached to a vehicle's dashboard or a bicycle's handlebars, sudden impact forces can occur during use. These forces must be absorbed and dissipated, and in particular, should not cause the camera or mobile phone to detach. Therefore, a mounting device for attaching an electronic device, such as a camera or mobile phone, should be capable of absorbing short-term, sudden impact forces.

[0006] For attaching very different assemblies to one another, for example, for attaching an electronic device such as a mobile phone or navigation system in a vehicle, connecting devices are known that provide a hold using a vacuum. For example, US Patent 2013 / 0323388 A1 discloses a connecting device that uses a vacuum element in the form of a suction cup to secure a mobile phone to the windshield of a vehicle. The suction cup is placed against the windshield, and a magnetic element is arranged on the suction cup that can interact with a magnetic element on the windshield to improve the hold.

[0007] In a connection device known from US 5,192,043 for attaching an alarm device to a metal surface, a magnetic rubber surface is placed against a metal surface, a vacuum is created upon placement, so that the alarm device is held against the metal surface by magnetic action between the rubber surface and the metal surface as well as by negative pressure forces.

[0008] A connecting device known from EP 0 689 966 B1 has a magnetic contact plate on which a suction cup is arranged. A ski carrier can be attached to the roof of a vehicle by means of this connecting device.

[0009] From WO 2019 / 086648 A2, a connection device is known in which a closure module has a vacuum element that can be attached to an associated attachment component in order to interact with the attachment component in a connected position by means of vacuum. An adjusting element can be adjusted to release a flow opening in order to detach the closure module from the attachment component.

[0010] The object of the present invention is to provide a connecting device that is easy to use and universally applicable for connecting different assemblies.

[0011] This problem is solved by an object having the features of claim 1.

[0012] Accordingly, the attachment part of the attachment assembly is designed for bonding to the second of the assemblies.

[0013] The connecting device establishes a connection between the assemblies to be fastened by aligning the locking module associated with the first assembly and the attachment module associated with the second assembly along a defined alignment direction. During alignment, a sealed space is created between the vacuum element and the second assembly, to which the attachment module is attached, so that the assemblies are held together by a vacuum effect. Such a connection can be particularly resistant to impact, allowing the connecting device to absorb and dissipate impact forces.

[0014] The connecting device allows, for example, a camera to be attached to a helmet or a mobile phone to be attached to or inside a vehicle, such as to a windshield or dashboard of a motor vehicle or to the handlebars of a bicycle or motorcycle.

[0015] In the connected position of the connecting device, the vacuum element can, for example, lie flat against an associated contact surface, so that there is effectively no space between the vacuum element and the second assembly. However, when the assemblies are loaded relative to each other, a force can act on the closure module relative to the attachment assembly. This force acts in the direction of increasing or creating a space between the vacuum element and the second assembly, resulting in a vacuum between the vacuum element and the second assembly. This creates holding forces that hold the vacuum element to the second assembly and tend to increase the more the closure module is loaded relative to the attachment assembly. Thus, the closure module is held to the attachment assembly by the vacuum effect when it is attached to the attachment assembly.

[0016] The connecting device is closed by attaching the locking module to the mounting assembly. In the connected position, in addition to the magnetic forces provided by the magnetic elements, a vacuum is created between the locking module and the second assembly associated with the mounting assembly, so that the locking module is held against the second assembly and can withstand impacts due to the vacuum effect.

[0017] The fact that the attachment part can be bonded to the second assembly results in particularly simple manufacturing. This allows the attachment part of the mounting assembly to be manufactured and delivered independently of the second assembly. To make the connection device operational, the mounting assembly is bonded to the second assembly, for example, an electronic device such as a mobile phone, thus attaching it to the second assembly so that a connection can be established with the second assembly via the locking module.

[0018] Compared to integrating the mounting assembly, for example, into the casing of the second assembly, such as the electronic device, this results in simpler, more cost-effective manufacturing. The mounting assembly can be attached modularly to the electronic device, for example, directly to a mobile phone or a mobile phone case, thus providing a holding device for the electronic device.

[0019] The attachment assembly has an adhesive device for creating an adhesive bond with the second assembly.

[0020] The adhesive layer can consist of an adhesive suitable for polar or non-polar surfaces. Polar surfaces are materials with high surface energy, such as steel, iron, aluminum, or PVC. Non-polar surfaces have low surface energy, such as materials like PE, PP, or silicone. Depending on the desired application of the mounting assembly, an adhesive suitable for polar materials or one suitable for non-polar materials can be selected.

[0021] Such an adhesive layer can be provided, for example, by a liquid adhesive that is applied to the mounting assembly for fastening.

[0022] In another embodiment, the adhesive device can be formed by an adhesive pad that is bonded to the attachment part via a first adhesive surface and can be bonded to the second assembly via a second adhesive surface. The adhesive pad is thus double-sided. The first adhesive surface bonds the adhesive pad to the attachment part. The second adhesive surface allows the adhesive pad to be bonded to the second assembly, thereby securing the attachment part to the second assembly.

[0023] The adhesive pad can, for example, have the shape of a membrane that is adhesive on two sides.

[0024] The adhesive element, for example in the form of an adhesive pad, can be positioned on the side of the attachment part facing away from a mounting surface. The locking module is attached to the mounting surface to close the connection device with the housing assembly. On the side facing away from this mounting surface, the attachment part is bonded to the second assembly via the adhesive element and thus fixed to the second assembly.

[0025] For example, a recess can be formed on the second side of the attachment part in which the adhesive pad is received, so that the attachment part can be fitted snugly to the second assembly, for example a mounting surface directly on an electronic device or on a casing of an electronic device, for example a mobile phone.

[0026] The second magnetic element of the attachment assembly is received in a receiving opening of the attachment part. This second magnetic element can be formed, for example, by one or more permanent magnets, such as a ring-shaped permanent magnet, which is received in a corresponding receiving opening of the attachment part. The adhesive seal closes the receiving opening on the side facing away from the attachment surface, so that the magnet is encapsulated in the attachment part by the adhesive, for example, in the form of a membrane-like adhesive pad.

[0027] In one embodiment, the adjusting element has a first positive-locking section and the mounting assembly a second positive-locking section. When the locking module and the mounting assembly are brought into contact, the positive-locking sections engage with each other in such a way that transverse movement between the locking module and the mounting assembly is blocked. By means of the positive-locking sections, movement transverse to an insertion direction, along which the locking module and the mounting assembly are to be inserted, can thus be blocked, so that forces acting in the transverse direction (i.e., forces acting in the plane of the insertion surface) can be absorbed and supported.

[0028] The interlocking sections can be formed, for example, by a web running around the insertion direction on the one hand and by a complementary groove on the other, which can be engaged to create the connection.

[0029] Additionally or alternatively, the locking module can be secured in its rotational position relative to the mounting assembly, so that torsional forces can also be absorbed and supported. For this purpose, the locking module can have a first engagement section, while the mounting assembly has a second engagement section. When the locking module and the mounting assembly are attached to each other, the engagement sections lock together, thus preventing any rotational movement of the vacuum element relative to the mounting assembly.

[0030] The engagement sections can be formed, for example, by a toothing (preferably circumferential on a circular edge section) on the closure module on the one hand and the attachment assembly on the other.

[0031] In one embodiment, one of the engagement sections has a plurality of recesses, while the other of the engagement sections has at least one engagement element for engaging in the recesses.

[0032] For example, recesses can be formed on the mounting part of the mounting assembly, with the recesses being formed, for instance, into the mounting surface of the mounting part. Conversely, one or more engagement elements can be formed, for example, on the housing part of the locking module and designed as projections that are configured to engage in the recesses of the mounting part when the locking module and the mounting assembly are connected.

[0033] In another configuration, recesses can also be formed on the locking module and at least one engagement element on the attachment assembly.

[0034] The intervention provides a rotation lock for the locking module and the attachment assembly relative to each other in the connected position, so that the locking module and the attachment assembly are secured against rotation relative to each other.

[0035] The at least one engagement element can, for example, be shaped as a convex projection and may also have the form of a hemisphere. The recesses are shaped to complement the at least one engagement element, so that the at least one engagement element can be received in the recesses, thus providing a rotational locking mechanism for the locking module relative to the mounting assembly.

[0036] The convex design ensures that the engagement sections provide a rotation lock in the connected position. However, if a torque, determined primarily by the vacuum force and the magnetic attraction, is overcome, the locking module and the attachment assembly can be rotated relative to each other by the ratcheting action of at least one engagement element sliding over the recesses.

[0037] The recesses are, for example, regularly arranged along a circle around the insertion direction. Similarly, engagement elements can be arranged along a radially identical circle on the respective other component. The recesses define different positions, offset from each other by an angle around the insertion direction, in which the locking module and the insertion assembly can be aligned. The locking module and the insertion assembly can thus be connected in discrete angular positions, with the spacing of the recesses along the circle determining the angular offset between adjacent positions.

[0038] The number of recesses can be divisible by 4, for example. This ensures that the locking module can always be connected to the mounting assembly in precisely perpendicular orientations, such as a vertical and a horizontal orientation. Because the number of recesses is divisible by 4, at least two positions of the locking module relative to the mounting assembly, offset by exactly 90° to each other, are always possible.

[0039] Generally, the number of recesses is equal to or greater than the number of engagement elements. For example, in one embodiment, the number of recesses can be greater than the number of engagement elements. Thus, multiple recesses can be present, defining different, discrete angular positions of the locking module relative to the mounting assembly. However, a single engagement element on each component may suffice, which, when the locking module and the mounting assembly are connected, engages in one of the recesses and thereby provides anti-rotation protection. In another embodiment, however, several engagement elements can be provided to ensure reliable anti-rotation protection, engaging in recesses of the respective other engagement section when connected.

[0040] In one embodiment, the adjusting element can be tilted in different directions relative to the housing assembly to create an opening in the housing assembly, allowing air to flow into the space between the vacuum element and the second assembly. The closure module has an opening that can be opened by moving the adjusting element relative to the vacuum element, allowing air to flow into the space between the vacuum element and the second assembly. Because the adjusting element can be moved in different directions relative to the housing assembly, a user can easily, intuitively, and conveniently operate the adjusting element to separate the closure module and the attachment assembly.

[0041] Because the adjusting element can be tilted in different directions relative to the housing assembly, it can be adjusted using various tilting movements and thus actuated to release the locking module from the attachment assembly. A superimposed tilting movement, consisting of a tilt around a first axis and a superimposed tilt around a second axis, can also be used to actuate the adjusting element. This allows the user to actuate the adjusting element in a variety of ways to open the flow opening and thus release the vacuum element from the attachment assembly.

[0042] For example, the adjusting element can be tilted in any spatial direction within a plane. The adjusting element can thus be mounted on the housing assembly in such a way that tilting of the adjusting element relative to the housing assembly is possible in any number of tilting axes, whereby one or more tilting axes can be defined by a mechanical mounting, or free tilting without a specific, defined tilting axis is also possible.

[0043] The adjustment element can preferably be operated manually by a user, by manipulating it. This can be done, for example, with the fingertips, by pushing or pulling on the adjustment element to move it.

[0044] Because the adjusting element can be tilted in different directions, even rough handling is possible, for example, using the palm or back of the hand, or possibly another body part such as the foot or elbow. Since the adjusting element can be moved in different directions, precise execution of a specific movement is not required, allowing for simple and comfortable operation of the opening mechanism.

[0045] The adjusting element can be designed with a comparatively large lever (radially to a central axis of the connecting device directed along the insertion direction), so that the adjusting element can be moved easily.

[0046] The different spatial directions can define a plane perpendicular to the direction of application. These different spatial directions can define (imaginary) tilting axes around which the adjusting element can be tilted in a wobbling motion.

[0047] The adjusting element can, for example, assume a first position relative to the vacuum element in the connected position of the connecting device, in which the flow opening is closed, thus preventing air from entering the space. From this first position, the adjusting element can be moved to a second position to open the flow opening and allow air to flow in. Due to the airflow through the flow opening, a vacuum effect between the vacuum element and the second assembly no longer exists, so the closure module can be removed from the attachment assembly without any vacuum effect.

[0048] In an advantageous embodiment, the adjusting element is pre-tensioned towards its first position. This pre-tension can be achieved, for example, by a spring element acting on the adjusting element. Alternatively, the pre-tension can be magnetically induced, for instance, by magnetic elements. The adjusting element thus automatically assumes its first position when not otherwise actuated and, particularly in the connected position of the connecting device, closes the flow opening, allowing a vacuum effect to develop between the vacuum element and the second assembly.

[0049] In one embodiment, the vacuum element is formed by a cup element that is at least partially elastic. In this case, the vacuum element thus implements a component similar to an elastic suction cup, which can be arranged on a contact surface of the second assembly in order to create a vacuum between the vacuum element and the contact surface under elastic deformation, thereby providing holding forces to keep the assemblies together.

[0050] In one embodiment, the housing assembly has at least one bearing point for supporting the adjusting element. The adjusting element can, for example, have at least one bearing pin that is received in the at least one bearing point of the housing assembly, thus supporting the adjusting element relative to the housing assembly. The bearing point is shaped such that the bearing pin can tilt about both the first and second tilting axes within the bearing point, thus enabling a superimposed tilting movement of the adjusting element relative to the housing assembly.

[0051] In one embodiment, the adjusting element has a plurality of bearing journals and the housing assembly has a plurality of bearing points. Each bearing journal is received in a corresponding bearing point of the housing assembly. Each bearing journal is tiltable within its corresponding bearing point and is also movable along an actuation direction, along which the adjusting element can be adjusted on the housing assembly. This arrangement of bearing points allows the adjusting element to tilt relative to the housing assembly in various spatial directions. When tilting relative to the housing assembly, the adjusting element can be supported at one or more of the bearing points, with the support differing depending on the tilting movement.The bearing points can therefore specify different tilting axes around which tilting is possible, whereby tilting can also be possible in a superimposed manner around different tilting axes.

[0052] In one embodiment, the bearing points are arranged along a circle on the housing assembly. The circle can, for example, extend along the plane in which the spatial directions about which the adjusting element of the housing assembly can be tilted are defined, and which is thus spanned by these spatial directions. The bearing points can be arranged uniformly along the circle, such that the bearing points are equidistant from each other in pairs. At each bearing point, the associated bearing journal can tilt and also adjust perpendicular to the plane of the circle, thus allowing the adjusting element to tilt in different spatial directions relative to the housing assembly, all of which extend in the plane of the circle.

[0053] For example, the housing assembly may have three bearing points arranged in a circle. The adjusting element has three corresponding bearing journals, which are assigned to and supported by the bearing points.

[0054] In one embodiment, the flow opening is arranged concentrically to the circle on the housing assembly. The flow opening is thus positioned centrally relative to the circle, and may be offset from the plane of the circle. A valve element can be arranged concentrically to the circle on the adjusting element. When the adjusting element is adjusted, the valve element moves together with the adjusting element to open the flow opening and thus allow an inflow of air into a space located between the vacuum element and the attachment assembly.

[0055] For example, at least one bearing point can be formed by an elongated hole. Such an elongated hole can provide a pivotable bearing about one tilting axis and simultaneously allow tilting about the other tilting axis by longitudinal movement within the elongated hole. Alternatively, the bearing point can be designed, for example, as a ball joint bearing. In this case, the bearing journal on the adjusting element side can, for example, be convex. An associated bearing point on the housing assembly side receives the bearing journal and supports it in such a way that the bearing journal can be tilted at the bearing point and simultaneously moved perpendicular to the plane in which the bearing points on the housing assembly are arranged.

[0056] In one embodiment, the flow opening is formed in a base of the housing assembly, which, in the connected position, faces the attachment assembly. The base can, for example, be formed on a housing part of the housing assembly that is rigidly connected to the vacuum element. The base can, for example, be arranged centrally within the vacuum element and surrounded by it, with the base pointing towards the attachment assembly in the connected position and, if necessary, being in full contact with the attachment assembly in this position.In the connected position, the flow opening formed in the base is closed by the adjusting element, whereby by adjusting the adjusting element the flow opening can be released and thus air can flow into a space located between the base and the attachment assembly in order to eliminate a negative pressure between the closure module and the second assembly and thus to be able to release the closure module.

[0057] In one embodiment, the closure module has a valve element that is arranged on the adjusting element and can be actuated by adjusting the adjusting element. The valve element can, for example, be made of a soft elastic material, such as rubber, and be attached to the adjusting element in such a way that, in the connected position, the valve element seals the flow opening at the bottom of the associated housing part of the housing assembly, but can be moved by adjusting the adjusting element so that the flow opening is released.

[0058] The first and second magnetic elements can each be formed by a permanent magnet or an arrangement of several permanent magnets and interact magnetically to close the connection device by pointing opposite magnetic poles towards each other. Alternatively, one magnetic element could be formed by a permanent magnet or an arrangement of several permanent magnets, while the other magnetic element could be formed by a magnetic armature made of a ferromagnetic material.

[0059] In the connected position, the vacuum element rests against an associated contact surface, which is assigned to the second of the assemblies, thus creating a vacuum between the locking module on the first and second assemblies. In this connected position, the vacuum element interacts with the contact surface to generate the vacuum effect, lying flat against it. This deformation of the vacuum element, which may be, for example, an elastic suction cup, creates a vacuum effect, thereby holding the assemblies securely together.

[0060] A contact surface for interaction with the vacuum element can be formed directly on the second assembly, for example an electronic device or a casing of an electronic device.

[0061] In one embodiment, the contact surface can also be formed on the attachment assembly. In this embodiment, the attachment part has a contact surface against which the vacuum element rests in the connected position to create the vacuum effect. The contact surface can, for example, be ring-shaped and completely surround a radially inner engagement section of the attachment part.

[0062] By forming a contact surface on the attachment part, which is connected to the associated second assembly via an adhesive bond, a vacuum effect can be created between the vacuum element of the closure module and the attachment part. This enables a reliable vacuum effect, particularly for an assembly that may have an irregular outer surface and therefore does not guarantee a tight seal with the vacuum element. Because the contact surface is formed on the attachment part, the vacuum effect thus becomes independent of the second assembly and a sealing connection between the vacuum element and the second assembly.

[0063] In another configuration, the mounting surface can also be formed directly on the second assembly, for example a housing or an outer shell of the second assembly.

[0064] In one embodiment, an electronic device, in particular a mobile phone, has a connecting device of the type described above. The electronic device forms the second of the assemblies. The connecting assembly is attached to the electronic device and is, for example, directly bonded to the electronic device or indirectly bonded to a casing for the electronic device, such as a mobile phone, so that the electronic device can be connected to the locking module via the casing.

[0065] In one embodiment, the vacuum element, in its connected position, rests against a contact surface of the electronic device that differs from the mounting assembly to create the vacuum effect. This contact surface can be, for example, a housing surface of the electronic device, such as the back of a mobile phone. Alternatively, it can be a surface of the electronic device's casing, such as the case of a mobile phone. In the connected position, the vacuum element interacts with the electronic device to create the vacuum effect and rests flat against the designated contact surface. This deformation of the vacuum element, which may be, for example, an elastic suction cup, generates a vacuum effect, thereby holding the electronic device securely against the locking module and resisting impact.

[0066] This is particularly advantageous because in this case the vacuum force provided by the vacuum element does not depend on the adhesive bond of the mounting assembly, but is (largely) independent of the mounting assembly and acts at least predominantly between the vacuum element and the contact surface directly on the electronic device.

[0067] The underlying concept of the invention will be explained in more detail below with reference to the exemplary embodiments shown in the figures. The figures show: Fig. 1 shows a view of an embodiment of a connecting device comprising a locking module and an attachment assembly to be bonded to an associated component; Fig. 2 shows a view of an embodiment of a connecting device with an attachment assembly to be affixed to a mobile phone casing; Fig. 3 shows a view of an embodiment of a connecting device with an attachment assembly to be affixed directly to a mobile phone; Fig. 4 shows a view of the embodiment according to Fig. 3 , in a connected position of the locking module of the connecting device; Fig. 5A a top view of the arrangement according to Fig. 4 ; Fig. 5 Legs sectional view along line AA according to Fig. 5A Fig. 6 an exploded view of an embodiment of a connecting device; Fig. 7 a side view of the connecting device together with an associated assembly; Fig. 8 a view of an adjusting element of a locking module of the connecting device; Fig. 9A a side view of the adjusting element; Fig. 9B a sectional view along line BB according to Fig. 9A Fig. 10: A top view of the adjusting element of the locking module arranged on a housing assembly; Fig. 11A: A perspective view of the adjusting element on the housing assembly; Fig. 11B: Enlarged view in section B according to Fig. 11A ; Fig. 12A a top view of the connecting device; Fig. 12Legs sectional view along line AA according to Fig. 12A ; Fig. 12C an enlarged view in section C according to Fig. 12B Fig. 13A A view of the adjusting element during actuation along a first actuation direction; Fig. 13 Legs Sectional view along line CC according to Fig. 13A Fig. 14A A view of the adjusting element during actuation along a second actuation direction; Fig. 14Legs Sectional view along line CC according to Fig. 14A Fig. 15A A view of the adjusting element during actuation along a third actuation direction; Fig. 15Legs Sectional view along line CC according to Fig. 15A Fig. 16 a view of the adjusting element on the housing assembly, showing the arrangement of bearing points of the housing assembly along a circle; Fig. 17 the sectional view according to Fig. 12B , illustrating the tiltability of the adjusting element relative to the housing assembly along different actuation directions; Fig. 18 an enlarged view of the locking module connected to the mounting assembly, according to the embodiment shown Fig. 5B ; Fig. 19 an enlarged view of the mounting assembly; Fig. 20 a view of an embodiment of a locking module, with an engagement section formed on the base of a housing part and comprising a plurality of convex engagement elements; Fig. 21 a view of the locking module Fig. 20 associated attachment assembly with an engagement section having a plurality of recesses complementary to the engagement elements; Fig. 22 a view of another embodiment of an attachment part of an attachment assembly; and Fig. 23 the sectional view according to Fig. 18 , when using the attachment part according to Fig. 22 .

[0068] A connecting device 1, as shown in an embodiment in Fig. 1 As shown, a locking module 2 has a housing assembly and a vacuum element 27 arranged on the housing assembly, which can be connected to an attachment assembly 3 arranged on an assembly 5. The locking module 2 is assigned to another assembly, for example a vehicle, so that by attaching the locking module 2 and the attachment assembly 3 to each other, a connection can be established between the assembly 5 assigned to the attachment assembly 3 and the assembly assigned to the locking module 2.

[0069] In the connected position, the locking module 2 and the assembly 5 are held together magnetically and also by a vacuum effect caused by the vacuum element 27, as shown below in the views according to Fig. 6 bis 17 This will be explained in more detail later. By actuating an adjusting element 22, the vacuum effect caused by the vacuum element 27 in the connected position can be released, so that the locking module 2 and the attachment assembly 3 can be separated and thus the connecting device 1 can be released.

[0070] In the illustrated embodiment, the attachment assembly 3 has an attachment part 30, as can also be seen in an enlarged view in Fig. 19 The mounting part 30 forms a mounting surface 302, which can be brought into contact with the locking module 2. On the reverse side of the mounting surface 302, the mounting part 30 forms a receiving opening in which a ring-shaped magnetic element 31 in the form of a permanent magnet is received.

[0071] The attachment assembly 3 is assigned to assembly 5 and is fixed to assembly 5 in its operational state. For this purpose, the attachment assembly 3 is bonded to assembly 5, so that the attachment assembly 3 can initially be manufactured and delivered separately from assembly 5, in order to then fix the attachment assembly 3 to assembly 5 by creating an adhesive bond.

[0072] The adhesive bond can be created, for example, by an adhesive layer between the mounting assembly 3 and the assembly 5. To create such an adhesive layer, an adhesive for polar surfaces or an adhesive for non-polar surfaces can be used, depending on the material, particularly of assembly 5, to which the adhesive can be adapted.

[0073] In one embodiment, an adhesive device 32 in the form of an adhesive pad is used for the adhesive connection of the mounting assembly 3 to the assembly 5. This adhesive pad can, for example, be designed with a double-sided adhesive membrane. With a first adhesive surface on one side facing the mounting assembly 3, the adhesive pad 32 can be bonded to the mounting part 30 of the mounting assembly 3. Conversely, with a second adhesive surface on one side facing the assembly 5, an adhesive connection can be established with the assembly 5.

[0074] Referring now to Fig. 18 The adhesive device 32, in the form of an adhesive pad, is, for example, received in a recess 303 on the back of the attachment part 30. The adhesive pad 32 can encapsulate the magnetic element 32 in an associated receiving opening 301 of the attachment part 30 by covering the magnetic element 31 on a side facing away from the closure module 2 and thereby closing the receiving opening 301 to the outside.

[0075] At a Fig. 2 In the illustrated embodiment, the assembly 5 is designed by a mobile phone casing, so that the attachment assembly 3 can be attached to an electronic device in the form of a mobile phone via the adhesive device 32, in particular in the form of an adhesive pad, in order to hold the mobile phone on another assembly, for example in or on a vehicle, via the locking module 2.

[0076] In yet another instance, in Fig. 3 In the illustrated embodiment, the attachment assembly 3 is fixed directly to an electronic device in the form of a mobile phone via an adhesive device 32.

[0077] Fig. 4 and 5A, 5B The connecting device 1 with the locking module 2 in a connected position on the mounting assembly 3 and the assembly 5 associated with the mounting assembly 3 (in the illustrated embodiment, the mobile phone) Fig. 3 ).

[0078] As shown in the sectional view Fig. 5B As can be seen, in the connected position, the vacuum element 27 rests against a contact surface 50 of the electronic device and is elastically deformed, so that a vacuum effect exists between the vacuum element 27 and the contact surface 50 of the electronic device 5. The closure module 2 and the mounting assembly 3 are attached to each other and thus positioned relative to each other.

[0079] Referring now to Fig. 6 bis 17 The functionality of the connecting device 1 will be explained.

[0080] The locking module 2 has a housing assembly formed by housing parts 20 and 23, which are firmly connected to one another, for example by screws. The adjusting element 22 is mounted on the housing assembly, is partially enclosed between the housing parts 20 and 23, and extends through recesses 235 in the housing part 23 by means of webs 226, and is also supported at bearing points 209A-209C on the housing part 20.

[0081] The vacuum element 27 is connected to the housing part 20 via a retaining ring 25 in the form of a clamping ring. The vacuum element 27 can be attached to the assembly 5 by means of a flexible edge section 272 and is held in the attached position by vacuum pressure on the assembly 5. The vacuum element 27 is firmly connected to the housing part 20 by means of a collar 270 through the clamping action of the retaining ring 25, with the housing part 20 being located in an opening 271 of the vacuum element 27 and facing the mounting assembly 3 with a base 200 when the closure module 2 and the mounting assembly 3 are attached to each other, as can be seen, for example, from Fig. 7 results.

[0082] A valve element 26 is arranged on the adjusting element 22, the valve element having a valve head 260 pointing towards the base 200 of the housing part 20 and closing a flow opening 201 in the base 200 in a non-actuated position of the adjusting element 22, so that air cannot enter a space between the vacuum element 27 and the attachment assembly 3 when the closure module 2 is attached to the attachment assembly 3, analogous to what has been described above.

[0083] The valve element 26 is located in a central receiving opening 222 on the adjusting element 22 and is coupled to the adjusting element 22 via a coupling section 263 such that when the adjusting element 22 is adjusted, the valve element 26 moves together with the adjusting element 22 and is thereby released from its closing engagement with the flow opening 201. By adjusting the adjusting element 22, the flow opening 201 in the base 200 of the housing part 20 can thus be released, so that the vacuum effect between the closure module 2 and the attachment assembly 3 can be relieved, thus releasing the attachment assembly 3 from the closure module 2.

[0084] The valve element 26 is supported relative to the housing part 23 by a spring element 262. The spring element 262 thus biases the valve element 26 in the direction of the adjusting element 22, whereby adjustment of the adjusting element 22 also occurs against the spring-elastic effect of the spring element 262, and the adjusting element 22 returns to its unactuated position after actuation due to the spring action, corresponding to the position shown in the figure. Fig. 7 , is postponed.

[0085] A magnetic element 21 in the form of a ring-shaped permanent magnet is mounted in a receiving chamber 203 on the housing part 20. The mounting assembly 3 also has a magnetic element 31 in the form of a ring-shaped permanent magnet. When the locking module 2 and the mounting assembly 3 are attached, the magnetic elements 21 and 31 attract each other magnetically, deforming the vacuum element 27 and thereby creating a vacuum between the vacuum element 27 and the assembly 5. This also magnetically holds the locking module 2 and the mounting assembly 3 together in a connected position.

[0086] The locking module 2 can be attached to an associated assembly 4, for example a bicycle handlebar, by means of a mounting bracket 24, which can be firmly connected to the housing part 23 of the housing assembly.

[0087] In the embodiment according to Fig. 6 bis 17 The adjusting element 22 is mounted on the housing assembly by means of bearing pins 229A, 229B, 229C, which are convexly shaped at their radially outer ends and are each arranged between two radially extending webs 226 of the adjusting element 22, as is shown, for example, in Fig. 8 As can be seen, each bearing journal 229A, 229B, 229C is supported at an associated bearing point 209A, 209B, 209C of the housing part 20 such that each bearing journal 229A, 229B, 229C is both tiltable at the associated bearing point 209A, 209B, 209C and displaceable longitudinally along an adjustment direction perpendicular to the plane of the housing part 20.

[0088] As shown schematically in Fig. 16 As shown in the diagram, the bearing points 209A, 209B, 209C are arranged in a row along a circle K and are evenly spaced relative to each other along the circle K. The bearing journals 229A, 229B, 229C engage in the bearing points 209A, 209B, 209C, which are shaped like half-shells extending perpendicular to the plane of the circle K, such that the convex bearing journals 229A, 229B, 229C are tiltable at the bearing points 209A, 209B, 209C and are also displaceable perpendicular to the plane of the circle K at the bearing points 209A, 209B, 209C.

[0089] This ensures that the adjusting element 22 can be tilted about any tilting axes K1, K2, K3 relative to the housing part 20, namely about any tilting axes within the plane of the circle K.

[0090] As this is shown Fig. 10 und Fig. 11A, 11B in conjunction with Fig. 12A bis 12C As can be seen, in a non-actuated position of the adjusting element 22, the bearing journals 229A, 229B, 229C are positioned in the bearing points 209A, 209B, 209C such that the bearing journals 229A, 229B, 229C bear against a side of the flange 202 of the housing part 20 facing away from the vacuum element 27 and are supported perpendicularly to the plane of circle K on the housing part 20 (see in particular the enlarged view according to Fig. 12C In this unactuated position, the valve element 26 closes the flow opening 201 in the base 200 of the housing part 20, so that when the closure module 2 is connected to the attachment assembly 3, a vacuum effect exists between the attachment assembly 3 and the closure module 2.

[0091] The adjusting element 22 can be actuated via an actuating section 223, which extends circumferentially around the adjusting element 22 and is closed in an annular form. The actuating section 223 is arranged radially outside the circle K, as can be seen from Fig. 16 This can be seen by the fact that the actuation section 223 has a radius R2 that is larger than the radius R1 of the circle K.

[0092] The adjusting element 22 can be actuated in particular by a user acting on the actuating section 223 from the direction of the mounting assembly 3 and moving the actuating section 223 along an actuating direction B1, B2, B3, as shown in Fig. 13A, 13B bis 15A, 15B as shown, adjusted to the housing assembly. When the adjusting element 22 is adjusted in this way, the adjusting element 22 is tilted to the housing assembly by one or two of the bearing journals 229A, 229B, 229C bearing against the respective bearing points 209A, 209B, 209C of the housing part 20 perpendicular to the plane of circle K on the flange 202, and at least one of the bearing journals 229A, 229B, 229C being adjusted perpendicular to the plane of circle K at the respective associated bearing point 209A, 209B, 209C, lifting off the flange 202 of the housing part 20, as shown, for example, in Fig. 13B as can be seen for the bearing journal 229B.

[0093] If the adjusting element 22 is actuated at the actuating section 223 at the circumferential location of a bearing journal 229A, 229B, 229C, the adjusting element 22 is tilted about a tilting axis K1-K3, which is defined by the other two bearing journals 229A, 229B, 229C. If the adjusting element 22 is actuated, for example, at the circumferential location of the bearing journal 229A, the adjusting element 22 tilts about a tilting axis K2 to the housing part 20, which is defined by the other two bearing journals 229A, 229B, 229C, in that the bearing journals 229A, 229B, 229C are supported perpendicular to the plane of the circle K on the flange 202 and the bearing journal 229A is lifted off the flange 202 at the bearing point 209A.

[0094] Actuation is possible at any circumferential location of the actuating section 223. Tilting does not necessarily occur about a tilting axis K1-K3 defined by two bearing journals 229A, 229B, 229C, but can occur about any tilting axis within the plane of the circle K, for example, also with the adjusting element 22 supported by only one bearing journal 229A, 229B, 229C on the flange 202 of the housing part 20.

[0095] Due to its bearing arrangement, the adjusting element 22 can not only be actuated by tilting, but can also, for example, be actuated in an actuation direction B4, as shown in Fig. 17 drawn, moved perpendicular to the plane of circle K and thereby lifted off the housing part 20 in order to bring the valve element 26 out of its closing engagement with the flow opening 201 in the base 200 of the housing part 20.

[0096] Furthermore, actuation is not only possible from the direction of the mounting assembly 3, but can also occur in the reverse direction of actuation by a user acting on the actuating section 223 in an actuation direction B5 directed towards the mounting assembly 3, as shown in Fig. 17 as shown. In this case, the adjusting element 22 tilts in a tilting direction B6, supported by those bearing pins 229A, 229B, 229C on the flange 202 which face the force application point.

[0097] Referring now to Fig. 18 and 19The locking module 2 and the mounting assembly 3 are connected to each other in a connected position, such that the base 200 formed on the housing part 20 rests flat against the mounting surface 302 of the mounting part 30. Because the vacuum element 27 projects radially beyond the mounting part 30 of the mounting assembly 3, the vacuum element 27 comes into contact with the contact surface 50 formed on the assembly 5 and deforms elastically, creating a vacuum effect between the vacuum element 27 and the contact surface 50, particularly under impact loads between the locking module 2 and the assembly 5.

[0098] The attachment assembly 3 has a positive locking section 300 in the form of a groove into which the closure module 2 with a positive locking section 205 on the bottom 200 of the housing part 20 can be inserted to position the closure module 2 and the attachment assembly 3 together and, in addition to the vacuum effect and magnetic attraction via the magnetic elements 21, 31, to provide support, in particular against shear forces transverse to the attachment direction A.

[0099] The positive locking section 300 in the form of the groove runs, as shown from Fig. 19 It is evident that the entire process revolves around the direction of application A.

[0100] In addition, the attachment assembly 3 has a radial engagement section 304 in the form of a groove within the positive locking section 300, in the form of a circumferential toothing, into which an associated engagement section 206 (see Fig. 18 ) engages the housing part 20 of the locking module 2 in the connected position and causes a rotation lock of the locking module 2 relative to the mounting assembly 3 about the mounting direction A. Due to the engagement, the locking module 2 cannot move freely, but may be rotated towards the mounting assembly 3 if a predetermined limit force (which is determined by the shape of the toothing and the magnetic forces) is overcome, when the locking module 2 is attached to the mounting assembly 3 in the connected position.

[0101] Referring to Fig. 20 und 21 In one embodiment, a plurality of engagement elements 207 in the form of hemispherical, convex projections are formed on the base 200 of the housing part 20 to create the engagement section 206. The engagement elements 207 are arranged along a circle and regularly spaced apart from one another. The circle extends around the central flow opening 201 on the base 200 of the housing part 20. The engagement elements 207, in the form of projections, extend from the base 200 towards the attachment assembly 3.

[0102] Complementary to the engagement elements 207, the engagement device 304 on the attachment part 30 of the attachment assembly 3 is formed by a plurality of recesses 305, each of which is complementary to the engagement elements 207 of the engagement section 206 on the locking module 2 and is hemispherical in shape. The recesses 305 are arranged along a circle around the attachment direction A and are positioned on the same radius as the engagement elements 207 of the locking module 2, so that the engagement elements 207 can engage with each other when the locking module 2 and the attachment assembly 3 are attached to each other.

[0103] The recesses 305 are arranged one after the other on the mounting surface 302 and formed into the mounting surface 302. The recesses 305 define discrete angular positions into which the locking module 2 and the mounting assembly 3 can be attached to one another.

[0104] As this is shown Fig. 20 und 21 As can be seen, the number of recesses 305 on the mounting assembly 3 is greater than the number of engagement elements 207 on the locking module 2. The number of recesses 305 can in particular be divisible by 4, which makes it possible for the locking module 2 to always be attached to the mounting assembly 3 in two exactly perpendicular angular positions, in particular in a vertical position and a horizontal position perpendicular to it.

[0105] In the connected position, the engagement elements 207 on the closure module 2 are always in engagement with recesses 305 on the attachment part 30 of the attachment assembly 3.

[0106] The number of recesses 305 defines the discrete positions of the locking module 2 and the mounting assembly 3 relative to each other. In principle, a single engagement element 207 on the locking module 2 may be sufficient, although the rotational locking in the connected position can be improved by using several engagement elements 207.

[0107] Due to the convex shape of the engagement elements 207 and the complementary shape of the recesses 305, the engagement sections 206, 304, in the connected position, provide a rotation lock to secure the rotational position of the locking module 2 and the mounting assembly 3 relative to each other about the mounting direction A. However, due to the convex shape, the locking module 2 and the mounting assembly 3 can be rotated relative to each other if a limit torque is overcome, with the engagement elements 207 sliding ratchetically over the recesses 305.

[0108] In the embodiments described above, a contact surface 50 is formed on the assembly 5 associated with the mounting assembly 3. In the connected position, the vacuum element 27 rests against the contact surface 50 under elastic deformation, so that a vacuum effect exists between the vacuum element 27 and the contact surface 50 on the associated assembly 5.

[0109] At the in Fig. 22 In contrast, in the illustrated embodiment of an attachment assembly 3, an outer, circumferential contact surface 306 is formed on the attachment part 30, surrounding a radially inner engagement section 304, which is designed for contact with the vacuum element 27, as shown in Fig. 23 The contact surface 306 is flat and dimensioned such that it has at least the same diameter as the vacuum element 27 (referring to the deformed, connected position) or a larger diameter than the vacuum element 27. In the connected position, the vacuum element 27 is thus in contact with the contact surface 306, so that a vacuum effect exists between the vacuum element 27 and the contact surface 306 of the attachment part 30.

[0110] The design of the attachment part 30 according to Fig. 22 This has the advantage that the vacuum effect of the vacuum element 27 is independent of the surface properties of the assembly 5. The surface of the contact area 306 on the attachment part 30 can be optimized for contact and vacuum effect with the vacuum element 27.

[0111] Apart from the installation area 306, the attachment part 30 is according to Fig. 22 identical to the attachment part according to Fig. 19 and21 , so reference is also made to the explanations provided here.

[0112] The underlying idea of ​​the invention is not limited to the embodiments described above, but can in principle also be realized in a completely different way, as long as this falls within the wording of the attached claims.

[0113] A connecting device of the type described here can be used to fasten very different assemblies together. In particular, the use of this connecting device is not limited to the examples shown here. Advantageously, the connecting device can be used to fasten electronic devices, for example, a camera or a mobile phone. However, this is not a limitation. Bezugszeichenliste

[0114] 1 Connecting device 2 Locking module 20 Housing part 200 Base 201 Flow opening 202 Flange 203 Receiving chamber 205 Positive locking section 206 Engagement section 207 Engagement elements 209 A-C bearing point 21 Magnet element 22 Adjusting element 222 Receiving opening 223 Actuating section 226 Webs 229 A-C bearing pin 23 Housing part 235 Recesses 24 Mounting bracket 25 Mounting ring (tension ring) 26 Valve element 260 Valve head 262 Spring element 263 Coupling section 27 Vacuum element (cup element) 270 Collar 271 Opening 272 Flexible edge section 3 Attachment assembly 30 Attachment part 300 Positive locking section 301 Receipt opening 302 Mounting surface 303 Recess 304 Engagement section 305 Recesses 306 Contact surface 31 Magnetic element 32 Adhesive device 4 Assembly 5 Assembly 50 Contact surface A Mounting direction B1-B6 Actuation direction K Circle K1-K3 Tilting axis R1, R2 Radius

Claims

1. A connecting device (1) for detachably connecting two assemblies (4, 5), comprising a closure module (2), which is associated to a first one of the assemblies (4, 5) and includes a housing assembly, an adjustment element (22) adjustably arranged on the housing assembly, and a vacuum element (27), and an add-on assembly (3), which is associated to a second one of the assemblies (4, 5) and includes an add-on part (30), wherein the closure module (2) and the add-on part (30) of the add-on assembly (3) can be attached to each other along an add-on direction (A), so that in a connected position, when the first one and second one of the assemblies (4, 5) are loaded relative to each other, the closure module (2) is held at the second one of the assemblies (4, 5) due to a vacuum effect caused by the vacuum element (27), wherein the closure module (2) includes a first magnetic element (21) and the add-on assembly (3) includes a second magnetic element (31), wherein in the connected position the first magnetic element (21) and the second magnetic element (31) face each other in a magnetically attracting manner, wherein the adjustment element (22) can be moved towards the housing assembly to eliminate the vacuum effect of the vacuum element (27), in order to clear a flow opening (201) in the housing assembly for an inflow of air into a space (B) between the vacuum element (27) and the second one of the assemblies (4, 5), characterized in that the add-on part (30) of the add-on assembly (3) is configured for bonding with the second one of the assemblies (4, 5), wherein the add-on assembly (3) includes an adhesive means (32) for producing an adhesive connection with the second one of the assemblies (4, 5), wherein the second magnetic element (31) is received in a receiving opening (301) of the add-on part (30), wherein the adhesive means (32) covers the receiving opening (301) and closes the same towards the outside.

2. The connecting device (1) according to claim 1, characterized in that the adhesive means (32) is an adhesive layer consisting of an adhesive for polar surfaces or an adhesive layer consisting of an adhesive for non-polar surfaces.

3. The connecting device (1) according to claim 1 or 2, characterized in that the adhesive means (32) is an adhesive pad which is bonded to the add-on part (30) via a first adhesive surface and can be bonded to the second one of the assemblies (4, 5) via a second adhesive surface.

4. The connecting device (1) according to any of claims 1 to 3, characterized in that the adhesive means (32) is arranged on a side of the add-on part (30) facing away from the closure module (2).

5. The connecting device (1) according to any of the preceding claims, characterized in that the housing assembly of the closure module (2) includes a first form-fitting portion (205) and the add-on part (30) of the add-on assembly (3) includes a second form-fitting portion (300), wherein on attachment of the closure module (2) and the add-on assembly (3) to each other for blocking a transverse movement between the closure module (2) and the add-on assembly (3) the first form-fitting portion (205) and the second form-fitting portion (300) get into engagement with each other, in particular wherein one of the first form-fitting portion (205) and the second form-fitting portion (300) is configured as a web extending around the add-on direction (A) and the other one of the first form-fitting portion (205) and the second form-fitting portion (300) is configured as a groove extending around the add-on direction (A).

6. The connecting device (1) according to any of the preceding claims, characterized in that the housing assembly of the closure module (2) includes a first engaging portion (206) and the add-on part (30) of the add-on assembly (3) includes a second engaging portion (304), wherein on attachment of the closure module (2) and the add-on assembly (3) to each other the first engaging portion (206) and the second engaging portion (304) get into engagement with each other for blocking a rotational movement between the closure module (2) and the add-on assembly (3).

7. The connecting device (1) according to claim 6, characterized in that one of the first engaging portion (206) and the second engaging portion (304) includes a plurality of depressions (305) and the other one of the first enes ggaging portion (206) and the second engaging portion (304) includes at least one engaging element (207) for engaging into the depressions (305), in particular wherein the at least one engaging element (207) is of bulbous shape and the depressions (305) have a shape complementary to the at least one engaging element (207) and / or wherein the depressions (305) are mounted side by side along a circular line around the add-on direction (A) and / or wherein the number of depressions (305) can be divided by 4 and / or wherein the number of depressions (305) is greater than the number of engaging elements (207).

8. The connecting device (1) according to any of the preceding claims, characterized in that the adjustment element (22) can be tilted towards the housing assembly around different spatial directions in order to clear the flow opening (201) in the housing assembly.

9. The connecting device (1) according to any of the preceding claims, characterized in that the vacuum element (27) is formed by an at least sectionally elastic cup element.

10. The connecting device (1) according to any of the preceding claims, characterized in that the housing assembly includes at least one bearing point (209A-209C) for supporting the adjustment element (22), in particular wherein the adjustment element (22) includes at least one bearing pin (229A-229C) which is received in the at least one bearing point (209A-209C), wherein the at least one bearing pin (229A-229C) can be tilted about a first tilting axis (K1) and a second tilting axis (K2) in the at least one bearing point (209A-209C).

11. The connecting device (1) according to any of the preceding claims, characterized in that the flow opening (201) is formed in a floor (200) of the housing assembly, which in the connected position faces the add-on assembly (3).

12. The connecting device (1) according to any of the preceding claims, characterized in that the closure module (2) includes a valve element (26) which is arranged on the adjustment element (22) and can be actuated by adjusting the adjustment element (22).

13. The connecting device (1) according to any of the preceding claims, characterized in that the add-on part (30) includes an abutment surface (306) against which the vacuum element (27) rests in the connected position for causing the vacuum effect.

14. An electronic device, in particular a mobile phone, comprising a connecting device (1) according to any of the preceding claims, wherein the electronic device forms the second one of the assemblies (4, 5) and the add-on assembly (3) is mounted on the electronic device.

15. The electronic device according to claim 14, characterized in that in the connected position the vacuum element (27) rests against an abutment surface (50) of the electronic device different from the add-on assembly (3) for causing the vacuum effect.