EP4124257B1 - Magnetic-mechanical locking device for fastening to an associated assembly - Google Patents

Description

The invention relates to a locking device for connecting two assemblies to one another according to the preamble of claim 1.

Such a closure device comprises a first closure part, which is assigned to a first of the assemblies and has a first magnetic element, and a second closure part, which has a second magnetic element. The first closure part and the second closure part can be placed against one another along a closing direction under magnetic attraction between the first magnetic element and the second magnetic element, are held together mechanically and/or magnetically in a closed position and can be separated from one another to open the closure device.

Such a closure device can be designed, for example, in the form of a magnetic-mechanical closure, as in the EP 2 040 572 B1 , the EP 2 252 176 B1 , the EP 2 833 754 B1 , the EP 2 825 075 B1 , the WO 2019/096447 A1 or the WO 2018/158336 A1 described.

Generally, two assemblies can be connected to one another using such a locking device. The attachment takes place with magnetic support from the magnetic elements, whereby the locking parts are magnetically attracted to one another when attached. In the closed position, the locking parts are connected to one another and thus held together by the magnetic attraction and preferably also by a mechanical latch. To open the The locking device allows the locking parts to be separated from each other so that the assemblies can be detached from each other.

The closure parts are generally designed as rigid parts. The second assembly, for example, can be a flexible part, such as a textile part. The desire here is to be able to connect the second closure part to the associated second assembly in a flexible, simple and cost-effective manner.

The EN 20 2020 100 438 U1 discloses a lock for a container, in particular for a carrying container in the form of a knapsack, a rucksack or the like, comprising a receiving unit which is designed to be fastened to a wall of the container, and an engagement unit which is designed to be fastened to a container lid which is movable relative to the wall and to be releasably engaged with the receiving unit.

The EN 10 2015 216 242 A1 discloses a closure device for fastening an object to a carrier element. The closure device comprises a first closure part which has a first connecting portion, a second closure part which has a second connecting portion, and a magnet device which acts as a magnetic attraction between the first closure part and the second closure part when the closure parts are placed against one another.

The object of the present invention is to provide a closure device which enables a flexible, simple and cost-effective connection of at least one of the closure parts to an associated assembly.

This object is solved by an article having the features of claim 1.

Accordingly, the closure device comprises a connecting part which has a fastening device for fastening the second closure part to the connecting part and an integration section for fixing the connecting part to a second of the assemblies.

The connecting part is designed as an additional part to the first and second closure parts. The connecting part serves to establish a connection between the second closure part and the associated second assembly by fixing the connecting part to the second assembly and creating a fastening for the second closure part via the fastening device provided on the connecting part.

The connecting part is thus used to integrate the closure device into the second of the assemblies. The integration section of the connecting part can be designed, for example, as a flat section that can be attached to the second of the assemblies and connected to the second of the assemblies. The integration section can in particular be connected firmly and non-detachably (i.e. not detachable without causing damage) to the second of the assemblies. For example, the integration section can be designed to connect the connecting part to the second of the assemblies by sewing, welding or gluing.

In the fastened position, the second closure part is firmly and resiliently connected to the connecting part and thus to the associated second assembly via the fastening device. The fastening device can be designed in such a way that the second closure part is permanently connected to the connecting part. In another embodiment, the locking device can be designed in such a way that the second closure part can be released from the connecting part again.

For example, the fastening device can be designed such that the second closure part can be released from the connecting part when a load force is exceeded. This can enable an emergency opening by releasing the connection between the second closure part and the connecting part in the event of excessive loading.

By providing the connecting part, the integration of the closure device into the second of the assemblies can be decoupled from the second closure part. To integrate the closure device, the connecting part is connected to the associated second assembly, for example sewn, welded or glued. Because the second closure part can then be connected to the fastening device of the connecting part, the second closure part is fixed to the associated second assembly. The connecting part can be designed as a simple, inexpensive component and its material can be adapted in particular to the second assembly, for example by the integration section being designed to be so flexible and deformable that it can be easily adapted to the shape of the second assembly and connected to the second assembly, for example sewn, welded or glued.

The second closure part can in particular be connectable to the connecting part, while the connecting part is already fixed to the second assembly via the integration section. This allows the connecting part to be attached to the second assembly first and the second closure part to be fixed to the connecting part afterwards, in order to connect the second closure part to the associated second assembly.

The second assembly can be a textile component, for example a shoe or a piece of clothing. Because the connecting part creates an intermediate piece between the second fastening part and the second assembly, the second assembly can be manufactured and connected to the connecting part without the second fastening part having to be connected to the connecting part. This avoids any impact on the second closure part during manufacture of the second assembly, for example any heat impact on the second magnetic element of the second closure part.

The connecting part can be manufactured as a cost-effective component, for example from plastic. The connecting part can be designed to be flat, which enables the second assembly, for example in the form of a textile component, to be manufactured in a flat manner.

If the second closure part can be detached from the connecting part, this enables simple recycling by detaching the second closure part from the associated assembly and thus the second closure part or at least parts of it, for example the second magnetic element, can be reused. In addition, maintenance, renewal or repair can be carried out by replacing or restoring the second closure part.

The connecting part can be manufactured as an identical part and can be used with very different locking devices, which can further contribute to cost-effective production.

The connecting part can also be designed entirely as a component of the associated assembly, for example as a housing part in which the fastening device is implemented.

The connecting part can be designed as a moisture-tight component and can be sealingly connected to the associated second assembly.

The integration section can be designed to be flat and, for example, flexibly deformable. The integration section is connected to the second assembly when the connecting part is fixed to the second assembly and can, for example, flexibly adapt to the shape of the second assembly.

In one embodiment, the connecting part can take on another function of the higher-level assembly. For example, the connecting part can have one or more eyelets for attaching a traction device, for example in the form of a band or a rope, to the higher-level assembly. In another embodiment, the connecting part can have one or more guides, for example longitudinal guides, for guiding a component of the higher-level assembly.

In one embodiment, the fastening device is designed to produce a positive and/or non-positive connection with the second closure part. For fastening, the second closure part can be attached to the fastening device of the connecting part and is held in the fastened position on the fastening device, so that the second closure part is connected to the associated second assembly via this.

For example, in one embodiment, the fastening device can have at least one form-locking element for producing a form-locking connection. For example, two form-locking elements can be present, between which the second closure part can be inserted in order to create a form-locking connection between the second closure part and the connecting part.

In one embodiment, the second closure part can be connected to the at least one form-locking element along a fastening direction. If two form-locking elements are present, the second closure part can be pushed between the two form-locking elements along the fastening direction, for example, in order to fix the second closure part in a form-locking manner to the form-locking elements.

The fastening device is designed to establish a bayonet connection with the second closure part. For this purpose, the fastening device has an opening into which the second closure part can be inserted in order to fix the second closure part to the

The opening can be designed as a circular opening, for example, whereby the second closure part can be rotated in the opening to create the bayonet connection about a central (perpendicular) axis of rotation to the circular opening. In a first rotation position, the second closure part can be attached to the connection part. By rotating from the first rotation position to a second rotation position, the bayonet connection is created and the second closure part is thus secured to the connection part.

For example, the fastening device can have at least one engagement element protruding into the opening for establishing the bayonet connection with the second closure part. For example, an arrangement of several engagement elements on the connecting part can protrude into the opening. When the second closure part is inserted into the opening, the engagement elements engage with the second closure part, whereby the bayonet connection is established by turning the second closure part in the opening and the second closure part is thus fastened to the connecting part.

In one embodiment, the fastening device has a particularly cylindrical outer surface that extends around the opening and on which the at least one engagement element is arranged. The second closure part is placed on the outer surface in order to establish the connection with the connecting part.

In one embodiment, the second closure part has at least one engagement opening into which the at least one engagement element engages when the bayonet connection is established. The engagement opening can be formed, for example, on a cylindrical body of the closure part and form an insertion section into which the at least one engagement element is inserted when the second closure part is placed on the connecting part. The insertion section is followed by a locking section into which the at least one engagement element is inserted when the second closure part is rotated about the axis of rotation relative to the connecting part, so that the bayonet connection between the second closure part and the connecting part is established in this way.

In one embodiment, the second closure part has a body and a receiving opening arranged in the body for receiving the second magnetic element. The magnetic element of the second closure part is arranged in the receiving opening, wherein the receiving opening is, for example, opened outwards through the connecting part. is closed when the second closure part is attached to the connecting part. The connecting part (which is preferably moisture-tight for this purpose) thus encapsulates the second magnetic element in the body of the second closure part. While the receiving opening is open to the outside before the second closure part is connected to the connecting part, the receiving opening is closed by connecting the second closure part to the connecting part, so that the magnetic element is received in the body in an encapsulated, preferably moisture-tight manner.

The closure device can be designed, for example, in the form of a magnetic-mechanical closure, as in the EP 2 040 572 B1 , the EP 2 252 176 B1 , the EP 2 833 754 B1 , the EP 2 825 075 B1 , the WO 2019/096447 A1 or the WO 2018/158336 A1 is described.

The closure device can, for example, form a winding section on the first closure part for winding up a tension element (in this case forming the first assembly), for example a tension cable, for example a shoelace. For example, the first closure part can have a first toothed section and the second closure part can have a second toothed section. In the closed position, in which the first closure part and the second closure part are connected to one another, the toothed sections are in toothed engagement with one another, wherein, for example, a rotation of the first closure part relative to the second closure part in a winding direction is possible in order to wind up the tension element onto the winding section of the first closure part, whereas an opposite rotation against the winding direction is blocked due to the toothed engagement, so that the tension element cannot be unwound against the winding direction when the first closure part and the second closure part are connected to one another in the closed position.

In another embodiment, the first closure part can have a rigid first engagement element and the second closure part can have a rigid second engagement element, which engage with each other in a form-fitting manner in the closed position. For example, a force introduction element that can be moved, for example pivoted, relative to the first engagement element, for example in the form of a bracket for attaching a belt, can be arranged on the first closure part, which is coupled to the rigid engagement element of the first closure part at a force introduction point. The force introduction point can be in the area of a In the closed position, the front end of the first engagement element faces the rigid second engagement element of the second closure part.

In yet another embodiment, the first closure part can have a locking element in the form of a rigid pin, which can be brought into locking engagement with a spring locking element of the second closure part. The closure parts can be connected by placing the first closure part in the closing direction on the second closure part, while the closure device can be opened by moving the closure parts along an opening direction that is different from the closing direction. The opening direction can be directed transversely to the closing direction, for example. The spring locking element can, for example, have the form of a C-ring, which in the closed position engages around the pin-shaped locking element of the first closure part and thereby creates a lock between the closure parts. To open, the locking element can be pushed out of the area of the spring locking element in the opening direction in order to release the lock in this way.

In one embodiment, an arrangement comprises a closure device according to the type described above, wherein the first closure part is sewn, welded or glued to a first assembly of the arrangement and the integration section of the connecting part is sewn, welded or glued to a second assembly of the arrangement.

The arrangement can, for example, be entirely or partially a textile arrangement, for example a shoe, a piece of clothing, a bag, a backpack or a suitcase. The second closure part can be attached in particular to a textile section of the arrangement via the integration section.

According to another aspect, a closure device for connecting two assemblies to one another comprises a first closure part, which is assigned to a first of the assemblies and has a first magnetic element, and a second closure part, which is assigned to a second of the assemblies and has a second magnetic element. The first closure part and the second closure part can be placed against one another along a closing direction under magnetic attraction between the first magnetic element and the second magnetic element, are held against one another mechanically and/or magnetically in a closed position and can be separated from one another to open the closure device. The closure device additionally has a fastening device for fastening the second closure part to the second of the assemblies. The fastening device is designed to produce a bayonet connection with the second closure part.

In the locking device, the second locking part is therefore to be fixed to the second assembly. This is done via a fastening device in the form of a bayonet lock, by means of which the second locking part can be attached to the second assembly, for example a housing part of the second assembly.

In this embodiment, the second closure part is thus directly attached to the second assembly via the bayonet connection. The fastening device can be part of the second assembly and integrated into the second assembly, for example in a housing part of the second assembly.

To create the bayonet connection, the fastening device on the second of the assemblies can, for example, have an opening into which the second closure part can be inserted in order to fasten the second closure part to the second of the assemblies. The opening can, for example, be designed as a circular opening, wherein the second closure part can be rotated in the opening to create the bayonet connection about a central (perpendicular) axis of rotation to the circular opening. In a first rotational position, the second closure part can be attached to the second of the assemblies. By rotating from the first rotational position to a second rotational position, the bayonet connection is created and the second closure part is thus secured to the second of the assemblies.

For example, the fastening device can have at least one engagement element protruding into the opening for establishing the bayonet connection with the second closure part. For example, an arrangement of several engagement elements can protrude into the opening. When the second closure part is inserted into the opening, the engagement elements engage with the second closure part, whereby the bayonet connection is established by turning the second closure part in the opening and the second closure part is thus fastened to the second of the assemblies.

In one embodiment, the fastening device has a particularly cylindrical surface extending around the opening, on which the at least one engagement element The second closure part is attached to the outer surface in order to establish the connection with the second of the assemblies.

In one embodiment, the second closure part has at least one engagement opening into which the at least one engagement element engages when the bayonet connection is established. The engagement opening can, for example, be formed on a cylindrical body of the closure part and form an insertion section into which the at least one engagement element is inserted when the second closure part is attached to the connecting part. The insertion section is followed by a locking section into which the at least one engagement element is inserted when the second closure part is rotated about the axis of rotation relative to the fastening device, so that in this way the bayonet connection between the second closure part and the second of the assemblies is established.

Fig. 1

eine Ansicht eines ersten Ausführungsbeispiels einer Verschlussvorrichtung, in einer Stellung, in der ein zweites Verschlussteil von einem zugeordneten Verbindungsteil getrennt ist;

Fig. 2

eine Ansicht der Verschlussvorrichtung vor Ansetzen eines ersten Verschlussteils an das zweite Verschlussteil;

Fig. 3

eine Ansicht der Verschlussvorrichtung in einer Schließstellung;

Fig. 4A

eine Draufsicht auf die Anordnung gemäß Fig. 1;

Fig. 4B

eine Schnittansicht entlang der Linie A-A gemäß Fig. 4A;

Fig. 5A

eine Seitenansicht des zweiten Verschlussteils am Verbindungsteil;

Fig. 5B

eine Schnittansicht entlang der Linie B-B gemäß Fig. 5A, bei Herstellung der Verbindung des zweiten Verschlussteils mit dem Verbindungsteil;

Fig. 5C

die Ansicht gemäß Fig. 5B, bei hergestellter Bajonettverbindung;

Fig. 6

eine Ansicht eines anderen, nicht beanspruchten Ausführungsbeispiels einer Verschlussvorrichtung;

Fig. 7

eine Ansicht der Verschlussvorrichtung, bei Ansetzen eines ersten Verschlussteils an ein zweites Verschlussteil;

Fig. 8

eine Ansicht der Verschlussvorrichtung in einer Schließstellung;

Fig. 9A

eine Draufsicht auf die Anordnung gemäß Fig. 6;

Fig. 9B

eine Schnittansicht entlang der Linie A-A gemäß Fig. 9A;

Fig. 10

eine Ansicht des zweiten Verschlussteils vor Verbinden mit einem zugeordneten Verbindungsteil;

Fig. 11

eine Ansicht in einer an dem Verbindungsteil befestigten Stellung des zweiten Verschlussteils;

Fig. 12A

eine Draufsicht auf die Anordnung gemäß Fig. 11;

Fig. 12B

eine Schnittansicht entlang der Linie B-B gemäß Fig. 12A;

Fig. 13A

die Draufsicht gemäß Fig. 12A;

Fig. 13B

eine Schnittansicht entlang der Linie C-C gemäß Fig. 13A;

Fig. 14

eine Ansicht eines anderen Ausführungsbeispiels einer Verschlussvorrichtung, darstellend ein zweites Verschlussteil zur Befestigung an einer zugeordneten, zweiten Baugruppe;

Fig. 15

eine Seitenansicht der Anordnung gemäß Fig. 14; und

Fig. 16

eine Draufsicht auf die Anordnung gemäß Fig. 15.

The idea underlying the invention will be explained in more detail below using the embodiments shown in the figures. They show:

Fig.1

a view of a first embodiment of a closure device, in a position in which a second closure part is separated from an associated connecting part;

Fig.2

a view of the closure device before attaching a first closure part to the second closure part;

Fig.3

a view of the locking device in a closed position;

Fig. 4A

a plan view of the arrangement according to Fig.1 ;

Fig. 4B

a sectional view along the line AA according to Fig. 4A ;

Fig. 5A

a side view of the second closure part on the connecting part;

Fig. 5B

a sectional view along the line BB according to Fig. 5A , when establishing the connection of the second closure part with the connecting part;

Fig. 5C

the view according to Fig. 5B , with bayonet connection established;

Fig.6

a view of another, not claimed embodiment of a closure device;

Fig.7

a view of the closure device when a first closure part is attached to a second closure part;

Fig.8

a view of the locking device in a closed position;

Fig. 9A

a plan view of the arrangement according to Fig.6 ;

Fig. 9B

a sectional view along the line AA according to Fig. 9A ;

Fig.10

a view of the second closure part before connection to an associated connecting part;

Fig. 11

a view in a position of the second closure part fastened to the connecting part;

Fig. 12A

a plan view of the arrangement according to Fig. 11 ;

Fig. 12B

a sectional view along the line BB according to Fig. 12A ;

Fig. 13A

the top view according to Fig. 12A ;

Fig. 13B

a sectional view along the line CC according to Fig. 13A ;

Fig. 14

a view of another embodiment of a closure device, showing a second closure part for attachment to an associated second assembly;

Fig. 15

a side view of the arrangement according to Fig. 14 ; and

Fig. 16

a plan view of the arrangement according to Fig. 15 .

Fig. 1 to 5A-5C show a first embodiment of a closure device 1, which has a first closure part 2, a second closure part 3 and a connecting part 4. The first closure part 2 is assigned to a first assembly 5, in which In the embodiment shown, for example, a tension element in the form of a band or rope, for example of a piece of clothing or a shoe. The second closure part 3, on the other hand, is assigned to a second assembly 6, for example a textile section, for example of a piece of clothing or a shoe, wherein the second closure part 3 is fixed in the operational position via the connecting part 4 to the second assembly 6.

The closure device 1 is designed as a magnetic-mechanical closure device. In the operational position, the second closure part 3 is fixed to the connecting part 4, as can be seen from Fig. 2 and 3 The first closure part 2 can be attached to the second closure part 3 along a closing direction X and thus connected to the second closure part 3, wherein the first closure part 2 and the second closure part 3 each have a magnetic element 24, 34, which are magnetically attractive to one another when the closure parts 2, 3 are attached to one another and thus magnetically support the attachment.

In the closed position, shown in Fig.3 , the closure parts 2, 3 are held together due to the magnetic attraction between the magnetic elements 24, 34.

How this Fig. 2, 3 and 4A, 4B As can be seen, the first closure part 2 has a body 20 which forms a toothed section 23 in the form of a conical internal toothing on a side facing the second closure part 3. A winding section 22 in the form of a winding groove is formed on the body 20, onto which the tension element 5, for example in the form of a tension cable, can be wound and from which the tension element 5 can also be unwound again. A handle element 21 is fixedly arranged on the body 20, via which a user can grip the first closure part 2 in order to establish or release the connection between the closure parts 2, 3 or to rotate the first closure part 2 relative to the second closure part 3.

The second closure part 3 has a body 30 on which a toothed section 33 is formed on a side facing the first closure part 2, which toothed section 33 circumferentially surrounds a pin section 32. The magnetic element 34 assigned to the second closure part 3 is accommodated in a receiving opening 301 within the pin section 32.

In the closed position of the closure device 1, the toothed sections 23, 33 of the closure parts 2, 3 are in toothed engagement with one another, and the pin section 32 of the second closure part 3 engages in the first closure part 2 for pivotal mounting. In the embodiment shown, the toothed sections 23, 33 are shaped such that the first closure part 2 can be rotated in a winding direction towards the second closure part 3 while the toothed sections 23, 33 slide over one another, for example in order to wind the tension element 5 onto the winding section 22 of the first closure part 2. However, turning back is blocked by the toothed engagement, so that the tension element 5 can be tensioned, but not easily relaxed, at least not without releasing the closure parts 2, 3 from one another.

To open the closure device 1, the first closure part 2 can be removed from the second closure part 3 against the closing direction X, against the magnetic attraction force between the magnetic elements 24, 34.

In the embodiment shown, the second closure part 3 is fixed to the associated assembly 6 via the connecting part 4. The connecting part 4 can be manufactured as a simple, inexpensive component, for example from plastic, and in particular does not have any magnetic elements.

The connecting part 4 forms an integration section 42 which extends over a flat surface and can be flexibly deformed, for example. The connecting part 4 can be fixed to the assembly 6 via the integration section 42, for example by sewing, welding or gluing.

How this Fig.1 in conjunction with Fig. 4B As can be seen, the connecting part 4 forms a cylindrical collar with a jacket surface 40 formed thereon, which surrounds an opening 400. To fasten the second closure part 3 to the connecting part 4, the body 30 of the second closure part 3 can be inserted into the opening 400, so that a fastening device 41 within the collar interacts with the body 30 of the second closure part 3 and in this way produces a fastening between the second closure part 3 and the connecting part 4.

The actuating device 41 is formed by engagement elements 410 in the form of projections projecting inwards into the opening 400. When the second closure part 3 is attached to the connecting part 4, the engagement elements 410 come into contact with Engagement openings 31 on the body 30 of the second closure part 3, so that a connection is established between the second closure part 3 and the connecting part 4.

The engagement elements 410 and the engagement openings 31 are designed to produce a bayonet connection. When the second closure part 3 is inserted into the opening 400, the engagement elements 410 first engage with axially open insertion sections 310 of the engagement openings 31, as can be seen from Fig.1 in conjunction with Fig. 5B can be seen. Once the engagement elements 410 have been inserted into the insertion sections 310, the second closure part 3 can be rotated about a rotation axis D in a fastening direction U to the connecting part 4, so that the engagement elements 410 run into locking sections 311 of the engagement openings 31, which adjoin the insertion sections 310 in the fastening direction U, as can be seen from Fig.1 in conjunction with Fig. 5B and 5C is evident.

Fig. 5C shows the locked position with the bayonet connection established, in which the engagement elements 410 lie in the locking sections 311 and above them connect the second closure part 3 with the connecting part 4 in a form-fitting manner.

Within the locking sections 311, locking elements 312 are formed in the form of projecting locking lugs which, in the fastened position when the bayonet connection is established, engage with associated locking openings 411 on the engagement elements 410, as can be seen from Fig. 5C is visible. The second closure part 3 is thus secured against loosening in the fastened position to the connecting part 4.

In the embodiment shown, the second closure part 3 is connected in the operational position via the connecting part 4 to the associated assembly 6, for example a textile section of a piece of clothing or the like. The second closure part 3 can also be detached from the connecting part 4 again by removing the bayonet connection by releasing the engagement elements 410 from the engagement openings 31. This enables, for example, maintenance, renewal or repair of the closure device 1 by replacing or restoring the second closure part 3. This also enables, for example, simple recycling, in that the second closure part 3 can be reused in a simple manner by detaching it from the connecting part 4.

Fig. 6 to 13A , 13B show a further embodiment of the closure device 1, which has a first closure part 2, a second closure part 3 and a connecting part 4. The second closure part 3 can again be attached to an associated assembly via the connecting part 4, wherein in the operational position the closure parts 2, 3 can be connected to one another in order to create a connection between associated assemblies.

In the embodiment shown, the first closure part 2 has a body 20 in the form of a rigid element, on one end of which an engagement element 25 is formed. A force introduction element 26 in the form of a bracket is pivotably connected to the body 20 about a force introduction axis 260. An actuating element 27 in the form of a tab is arranged on the body 20 and can be actuated by a user to release the closure parts 2, 3 from one another by the user engaging the actuating element 27 and thereby pulling the closure parts 2, 3 away from one another.

For example, the force introduction element 26 can be used to connect the first closure part 2 to an associated assembly in the form of a belt or the like.

The second closure part 3 has a body 30 on which a rigid engagement element 35 is formed, which forms a locking section 350 in the form of an undercut on a rigid section 351. A blocking element 36 is formed on the body 30, transversely offset and parallel to the engagement element 35.

The first closure part 2 and the second closure part 3 each have a magnetic element 24, 34, as can be seen from the sectional view according to Fig. 9B is evident.

To close the closure device 1, the closure parts 2, 3 can be placed against each other along a closing direction X, as is the case in the transition from Fig.7 towards Fig.8 is evident.

In a closed position of the closure device 1, the engagement element 25 of the first closure part 2 is in positive engagement with the engagement element 35 of the second closure part 3, wherein the engagement is secured by the blocking element 36 on the body 30 of the second closure part 3.

Because the force introduction axis 260 is located between a contact surface 352 on the engagement element 35, which the engagement element 25 faces in the closed position, and a vertical plane A pointing through the center of gravity of the magnetic element 34, a stable hold of the closure parts 2, 3 to one another in the closed position is achieved in that the closure parts 2, 3 are magnetically attracted to one another by the magnetic elements 24, 34 in the closed position and, in addition, the engagement between the engagement elements 25, 35 is secured by the blocking element 36.

In the closed position, a locking lug 28 on the body 20 of the first closure part 2 is also in engagement with an associated locking opening 300 on the body 30 of the second closure part 3 in order to secure the transverse position of the closure parts 2, 3 to one another.

By pulling on the actuating element 27, a user can lift the first closure part 2 from the second closure part 3 and thereby remove the blocking by the blocking element 36. By pulling on the actuating element 27, the closure parts 2, 3 can thus be easily released from one another.

In the illustrated embodiment, the connecting part 4 has a fastening device 41 which is designed to produce a positive connection with the second closure part 3.

The fastening device 41 has two form-locking elements 412 extending parallel to one another, between which the body 30 of the second closure part 3 can be pushed along a fastening direction U perpendicular to the closing direction X, as can be seen from Fig.6 in conjunction with Fig. 10 to 13A , 13B is visible. In the fastened position, the body 30 lies between the form-locking elements 412 and is in contact with a stop element 413 via a front edge, so that the body 30 assumes a defined position between the form-locking elements 412 along the fastening direction U. The position of the body 30 in relation to the connecting part 4 is secured via a locking element 414, which is deflected when the body 30 is inserted and, in the fastened position, is in engagement with a rear edge of the body 30, so that the hold of the second closure part 3 along the fastening direction U on the connecting part 4 is secured.

By releasing the locking of the locking element 414, the connection of the second closure part 3 from the connecting part 4 can be released by pushing the second closure part 3 counter to the fastening direction U out of engagement with the form-locking elements 412.

The connection via the form-locking elements 412 in the fastened position can be designed such that in the event of excessive loading, for example when a tear-off force is applied to the second closure part 3 that exceeds a limit force, the second closure part 3 can be disengaged from the form-locking elements 412 in the vertical direction. In this way, an emergency release can be provided in the event of excessive loading.

In another case, Fig. 14 to 16 In the embodiment shown, a closure device 1 has closure parts 2, 3, identical to those previously described in the embodiment according to Fig. 1 to 5A-5C Functionally and structurally, the closure parts 2, 3 are similar in the embodiments according to Fig. 14 to 16 and Fig. 1 to 5A-5C , whereby the closure part 2 is shown in Fig. 14 to 16 is not shown.

In contrast to the embodiment according to Fig. 1 to 5A-5C is in the embodiment according to Fig. 14 to 16 no separate connecting part 4 is provided, but a fastening device 41 is integrated into a housing part of an associated second assembly 6, so that the second closure part 3 can be fastened directly to the second assembly 6 via the fastening device 41.

How this can be seen from Fig. 1 to 5A-5C As has been described, the fastening device 41 has engagement elements 410 which are arranged within an opening 400 formed in the housing part of the assembly 6 and project inward into the opening 400. By inserting into the opening 400, the engagement elements 410 can be brought into engagement with the engagement openings 31 on the body 30 of the closure part 3 to produce a bayonet connection, in order to thereby produce a positive connection between the engagement elements 410 and the body 30 of the closure part 3, as described above with reference to Fig. 1 to 5A-5C has been described.

In the embodiment according to Fig. 14 to 16 the closure part 3 is thus fixed directly to the associated second assembly 6 via the bayonet connection. In this respect, no separate connecting part 4 is provided for the second assembly 6, but the fastening device 41 is integrated directly into the second assembly 6, for example a housing part of the second assembly 6.

In addition, reference should be made to the explanations of the embodiment according to Fig. 1 to 5A-5C to get expelled.

The idea underlying the invention is not limited to the embodiments described above, but can also be implemented in other ways.

In the illustrated embodiment, the second closure part is detachable from the connecting part, which enables maintenance, renewal or restoration of the second closure part by the second closure part being able to be detached from the connecting part and replaced or repaired.

The detachable connection also enables easy recycling, as the second closure part or at least parts of the second closure part, for example the magnetic element of the second closure part, can be reused.

The connecting part can be manufactured easily and inexpensively and can also be adapted to the associated assembly.

Because the second closure part is not fixed directly to the associated assembly, but indirectly via the connecting part, integration of the closure device is also possible in assemblies where direct attachment of the second closure part to an associated assembly is not easily possible.

The connecting part can, for example, be manufactured together with the associated assembly by attaching the connecting part to the assembly during production or, if necessary, by manufacturing it integrally with the second assembly. Only then is the second closure part attached to the connecting part so that any impairment of the second closure part, for example due to Heat exposure to the magnetic element of the second locking part is avoided during production of the assembly.

List of reference symbols

1

Locking device

2

Closure part

20

Body

21

Handle element

22

Wrapping section

23

Gear section

24

Magnetic element

25

Engagement element

26

Force introduction element

260

Force introduction axis

27

Actuator

28

Safety lug

3

Closure part

30

Body

300

Safety opening

301

Receiving opening

31

Access opening

310

Insertion section

311

Locking section

312

Locking element

32

cone

33

Gear section

34

Magnetic element

35

Engagement element

350

Locking section (undercut)

351

Rigid section

352

Contact surface

4

Connecting part

40

Shell surface

400

opening

41

Fastening device

410

Engagement element

411

Locking opening

412

Form-locking elements

413

Stop element

414

Locking element

42

Integration section

5, 6

module

A

axis

D

Rotation axis

M

Focus

X

Closing direction

U

Mounting direction

Claims (8)

1. A closure device (1) for connecting two assemblies (5, 6) to each other, comprising

   a first closure part (2), which is associated to a first one of the assemblies (5, 6) and includes a first magnetic element (24), and

   a second closure part (3), which includes a second magnetic element (34),

   wherein the first closure part (2) and the second closure part (3) can be attached to each other along a closing direction (X) by magnetic attraction between the first magnetic element (24) and the second magnetic element (34), are mechanically and/or magnetically held at each other in a closed position, and can be separated from each other for opening the closure device (1),

   wherein the closure device (1) comprising a connecting part (4), which includes a fastening device (41) for fastening the second closure part (3) to the connecting part (4) and an integration portion (42) for fixing the connecting part (4) to a second one of the assemblies (5, 6),

   characterized in that, the fastening device (41) is configured to produce a bayonet connection with the second closure part (3), wherein the fastening device (41) includes an opening (400) into which the second closure part (3) can be inserted for fastening to the connecting part (4), and in which the second closure part (3) can be rotated about an axis of rotation (D) to produce the bayonet connection.
2. The closure device (1) according to claim 1, characterized in that the integration portion (42) is configured for sewing, welding or gluing to the second one of the assemblies (5, 6).
3. The closure device (1) according to claim 1 or 2, characterized in that the second closure part (3) can be fastened to the connecting part (4) when the connecting part (4) is connected to the second one of the assemblies (5, 6).
4. The closure device (1) according to any of claims 1 to 3, characterized in that the fastening device (41) is configured to produce a positive and/or non-positive connection with the second closure part (3).
5. The closure device (1) according to any of the preceding claims, characterized in that the fastening device (41) includes at least one engagement element (410) protruding into the opening (400) to produce the bayonet connection with the second closure part (3), wherein preferably the fastening device (41) includes a shell surface (40) extended around the opening (400), on which the at least one engagement element (410) is arranged.
6. The closure device (1) according to claim 5, characterized in that the second closure part (3) includes at least one engagement opening (31) in which the at least one engagement element (410) engages with the bayonet connection made.
7. The closure device (1) according to any of the preceding claims, characterized in that the second closure part (3) has a body (30) and a receiving opening (301) arranged in the body (30) for receiving the second magnetic element (34), wherein the receiving opening (301) is closed by the connecting part (4) in a position of the second closure part (3) fastened to the connecting part (4).
8. An arrangement, comprising a closure device (1) according to any of the preceding claims, wherein the first closure part (2) is connected to the first one of the assemblies (5, 6) and the integration portion (42) is sewn, welded or glued to the second one of the assemblies (5, 6).

Images