EP4188157B1 - Drink bladder with magnetic closure device - Google Patents

Description

The proposed solution relates to a drinking bladder with a closure device for closing an opening which is formed between a first closing section and a second closing section on the drinking bladder.

Such a drinking bladder is in the US 5,941,640 A described. The US 2020/075209 A1 describes a closure device for closing an opening.

A cavity in a hollow body of the drinking bladder is closed via the opening closed using the closure device. Different solutions are known from practice, for example with a screw cap, through which a drinking bladder is effectively secured against unintentional opening by the user. However, previously common closure devices on drinking bladders are generally not perceived as particularly innovative or valuable and are not always comfortable to use for a user. There is therefore a need for further improvement in drinking bladders in this regard. In particular, it should be taken into account that, for example, due to an increased internal pressure in a cavity of the drinking bladder closed by the closure device, this is not possible insignificant (increased) forces can occur on closure parts of a closure device.

A drinking bladder according to claim 1 represents an improvement in this respect compared to the solutions known from the prior art.

• das erste Verschlussteil einen entlang einer Querrichtung längserstreckten, ersten Streifenkörper aufweist,
• das zweite Verschlussteil einen entlang der Querrichtung längserstreckten, zweiten Streifenkörper aufweist,
• das erste Verschlussteil und das zweite Verschlussteil magnetisch anziehend derart zusammenwirken, dass in einer Schließstellung der Verschlusseinrichtung der erste Schließabschnitt und der zweite Schließabschnitt aneinander anliegen und mit den ersten und zweiten Verschlussteilen einen Verschlussverbund (2V) bilden, und
• der Verschlussverbund aus einer Freigabelage, in der die ersten und zweiten Schließabschnitte entgegen einer von den ersten und zweiten Verschlussteilen aufgebrachten Magnetkraft zur Freigabe der Öffnung bestimmungsgemäß voneinander trennbar sind, unter wenigstens einmaligem Umfalten oder Einrollen der ersten und zweiten Schließabschnitte in eine Verschlusslage verstellbar ist.

A proposed drinking bladder includes a hollow body for holding a liquid and a closure device. The hollow body has at least one flexible wall and at least one connection for connection to a drinking tube. Liquid can be filled into the hollow body via an opening which is formed between a first closing section and a second closing section and can be closed by the closure device. The closure device has a first closure part on the first closure section and a second closure part on the second closure section, wherein

• the first closure part has a first strip body which extends longitudinally along a transverse direction,
• the second closure part has a second strip body which extends longitudinally along the transverse direction,
• the first closure part and the second closure part interact magnetically in such a way that in a closed position of the closure device, the first closure section and the second closure section rest against one another and form a closure composite (2V) with the first and second closure parts, and
• the closure assembly can be adjusted from a release position in which the first and second closing sections can be separated from one another as intended against a magnetic force applied by the first and second closure parts to release the opening, by folding or rolling the first and second closing sections at least once into a closure position.

The closure device further comprises a securing mechanism via which the closure assembly present in its closed position is secured.

In one embodiment variant, the closure device can additionally comprise a third closure part on a first closure section, with which the closure composite interacts in a magnetically attractive manner in its closure position. The closure layer can then be additionally secured mechanically via the additional securing mechanism, so that the securing mechanism prevents the closure assembly from being unintentionally removed from the third closure part. The In principle, the proposed solution is also advantageous without such a third closure part that interacts magnetically with the closure composite.

An embodiment variant of a proposed drinking bladder comprises a closure device in which the closing sections can be adjusted into the closure position by folding or rolling them at least once and the securing mechanism protects the closure assembly against (unintentional) removal from its thus occupied closure position due to an increased internal pressure in the closure device secures the hollow body closed in the opening. A proposed closure device (in particular independent of a third closure part that interacts magnetically with the closure assembly) has proven to be advantageous in order to secure a closure position assumed by folding or rolling at least once against undesired opening if, as a result of an increased internal pressure on a closure device caused by the closure device closed hollow body of a drinking bladder, shearing and/or lifting forces act on the first and second closure parts. Here, an additional securing mechanism can be used to effectively counteract, in particular, shear forces which act in a central section of the strip bodies of the first and second closure parts in a direction perpendicular to a longitudinal extension direction of the strip bodies, and/or lifting forces which act on the closure assembly on the longitudinal end side and under whose effect the closure parts strive to move away from each other can be counteracted.

• einer längsendenseitig an den ersten und zweiten Streifenkörpern wirkenden und aus dem erhöhten Innendruck resultierenden Abhebekraft entgegenzuwirken, unter deren Wirkung einander gegenüberliegende Längsenden der ersten und zweiten Streifenkörper bestrebt sind, sich voneinander zu entfernen, und/oder
• einer aus dem erhöhten Innendruck resultierenden Scherkraft entgegenzuwirken, die in einem Mittelbereich der ersten und zweiten Streifenkörper an der Verschlusseinrichtung in einer sich parallel zu den ersten und zweiten Schließabschnitten erstreckenden Ebene wirkt.

In principle, the security mechanism can therefore be set up in the closed position

• to counteract a lifting force acting on the longitudinal end side of the first and second strip bodies and resulting from the increased internal pressure, under the effect of which opposite longitudinal ends of the first and second strip bodies tend to move away from one another, and / or
• to counteract a shear force resulting from the increased internal pressure, which acts in a central region of the first and second strip bodies on the closure device in a plane extending parallel to the first and second closing sections.

The securing mechanism can therefore be set up in particular to counteract a shear force that occurs between the first and second closure parts, between the closure composite and a third closure part or between the Closure composite and a wall to which the closure composite lies opposite in the closure position.

The proposed solution is based on the basic idea of additionally mechanically securing the closure assembly with the closing sections that lie against one another in the closed position in its closed position against displacement into the release position, at least as long as no release force applied by the user acts on the closure assembly along a specific, predetermined direction of action . This can in particular prevent unintentional opening of the closure assembly. The additional securing mechanism can therefore be operated manually and can therefore be released in order to be able to adjust the locking assembly back into the release position. However, without the user consciously releasing the safety mechanism, the locking assembly remains locked against being moved into the release position. The first and second closure parts with their strip bodies thus provide a (possibly already sealing) closure on the closing sections, which is mechanically secured against unintentional opening via the security mechanism. A removal from the closure position, against which a mechanical safeguard is provided via the security mechanism, is therefore not only understood to be an inadvertent removal due to an active user attack on the closure device, but in particular a (at least partial) removal from the closure position, which is due to a load that is not applied by the user and acts on the closure device decreases.

In the closed position, the first and second closing sections can be folded or rolled up, in particular by the first and second closing sections and thus the walls having the closing sections being bent at least once by 180°, viewed along an extension path in cross section perpendicular to the transverse direction.

The strip bodies are arranged on the closing sections and thus act on the closing sections, the closure parts interacting in a magnetically attractive manner and the closing sections are thus held magnetically in contact with one another when the first and second closure parts are in their closed position.

To provide a magnetic interaction, the first strip body and/or the second strip body can each be formed from a magnetic material be, for example, by the strip bodies being formed from a plastic material, in particular a polymer material, or a silicone material, to which a magnetic material in the form of magnetic particles is added. Alternatively, the strip bodies can each accommodate a magnet arrangement made of discrete magnetic elements, so that the strip bodies interact in a magnetically attractive manner through the interaction of the magnet arrangements. It is conceivable that each closure part has a permanent magnetic effect, for example in that the strip bodies are formed with permanent magnetic particles and are therefore made of a permanent magnetic material or in that the magnet arrangements of the closure parts are each formed from an arrangement of permanent magnets. Alternatively, it is also possible for one closure part to act permanently magnetically and the other closure part to act as a ferromagnetic anchor, for example in that the ferromagnetically acting closure part consists of a strip body made of a ferromagnetic material (for example of a plastic material to which ferromagnetic particles are added) or has discrete ferromagnetic elements.

If a closure part has a magnet arrangement made of discrete magnetic elements, the discrete magnetic elements can, for example, be lined up linearly along the transverse direction, wherein the discrete magnetic elements can be regularly spaced from one another, for example along the transverse direction. However, it is also conceivable and possible to arrange the discrete magnetic elements in rows and columns using a two-dimensional matrix.

In principle, a third closure part can also have a third strip body extending along the transverse direction. For example, the third closure part is arranged on an offset section of a first wall that is different from the first closure section. In the closed position, the third closure part can, for example, interact magnetically with the first closure part in order to hold the closure assembly in the closed position.

The third closure part can be arranged spatially offset from the first closure section perpendicular to the transverse direction. In such an embodiment variant, the third closure part is designed with its third strip body extending parallel to the first strip body of the first closure part, but offset transversely to the first closure part.

In the closed position, the third strip body and the first strip body can, for example, be in flat opposition to one another with surfaces facing one another. The closure parts interact in a magnetically attractive manner, so that the first closure part is held in a defined positional relationship to the third closure part.

In one embodiment variant, the first strip body and/or the second strip body and/or a third strip body of a third closure part are designed to be elastic. A strip body can, for example, have increased rigidity compared to the walls of a hollow body on which the closure device is inserted, but is so elastic that it can be bent, in particular in a vertical direction perpendicular to the transverse direction.

An additional connection can be provided via the securing mechanism between the closure composite and a wall connected to the first closing section and/or between the closure composite and the third closure part when the closure composite is in the closed position. A connection between the closure composite and the third closure part includes, for example, that in the closure position a connection is provided between the first closure part and the third closure part or between the second closure part and the third closure part via the securing mechanism. The additional connection provided via the securing mechanism can be provided in a form-fitting manner and to absorb shear forces acting on the closure device.

The securing mechanism has at least one securing part, which secures the closure assembly against removal from the third closure part via a positive fit. In principle, the form fit can already exist in the closure position of the closure assembly. However, an embodiment variant is also included in which a positive connection to secure the closure assembly against removal of the third closure part only exists when a certain load acts on the closure device.

In a further development, the securing mechanism has at least two securing parts which interact with one another in a form-fitting manner in the closure position of the closure collar in order to secure the closure composite against removal from the third closure part. These can have at least two securing parts In this case, when the closure position is reached, the closure composite engages with one another in a form-fitting manner or, alternatively, at least be brought into a relative position to one another in which the form-fitting engagement of the two securing parts with one another is automatically realized when a load occurs on the closure device.

In a further development based on this, a first securing part and a second securing part are provided, with the first securing part being set up to engage behind the second securing part in order to secure the closure assembly against removal from the third closure part. On the one hand, an effective, positive securing of the two securing parts to one another can be ensured by appropriately reaching behind and thus an undercut formed on the securing mechanism. On the other hand, it is also comparatively easy to achieve that the securing parts can only be disengaged again by a targeted release movement. Accidental separation of the securing parts, especially when the locking device is in a loaded state, is therefore impossible.

In principle, a securing part of the securing mechanism can also be formed on one of the closure parts. Alternatively or additionally, a securing part can be formed by a component of the closure device that is separate from a closure part.

In one embodiment variant, the closure device comprises at least one magnetic element, under the action of which at least one securing part of the securing mechanism is positioned in a securing position in which the at least one securing part can lock the closure assembly against removal from the third closure part via a positive connection. A corresponding magnetic element can also be formed here by magnetic material in the form of magnetic particles. Alternatively, a magnetic element can comprise a permanent magnet which is arranged at a corresponding location on the closure device.

In a securing position in which a securing part of the securing mechanism is positioned under the action of at least one magnetic element, the securing part can already be in positive engagement in order to secure the locking assembly against adjustment into the release position. However, it can also be provided that the securing part is still in an intermediate position in its securing position, from which the securing part can only be released under the effect of additional load on the Closure device is moved into an engagement position in which the locking positive engagement then exists.

An embodiment variant further provides that the at least one securing part is adjusted into the securing position under the action of the at least one magnetic element when the closure assembly is transferred into its closure position. The at least one magnetic element thus ensures that the at least one securing part is in its securing position when the closure assembly reaches the closure position.

In an alternative embodiment variant, the at least one securing part is only adjustable after the locking assembly has been transferred into its closed position and thus subsequently in the direction of the securing position. This subsequent adjustment can then be supported by the at least one magnetic element - at least in a final part of an adjustment path before reaching the securing position - in order to support the assumption of a predetermined position by the at least one securing part in the securing position through magnetic attraction.

In principle, an additional positive connection can be provided between the closure composite and a wall to which the first closing section is connected in order to secure an assumed engagement position. For example, an embodiment variant for this provides at least one form-fitting element on the closure composite side, for example in the form of a locking lug or a locking web, which engages in a locking opening on the wall when the securing part is in the engaged position.

In one embodiment variant, an additional securing element is provided on the closure assembly, on which at least one securing part of the securing mechanism is fixed at a distance from the first and second closure parts. The securing element has, for example, a flexible or rigid support body to which the at least one securing part is fixed. For example, the securing part is provided offset from the first and second closure parts in a spatial direction that runs transversely to the extension direction of the strip bodies of the first and second closure parts. The securing part provided on the additional securing element can thus be used to mechanically lock the locking part at a distance from the first and second closure parts and, if necessary, also at a distance from the third closure part Closure composite can be provided in the closure position. This includes, for example, with reference to a variant already mentioned above, that the securing part provided on the additional securing element forms a first securing part, which in the closed position of the closure assembly is positively connected to a second securing part, which is provided on a wall connected to the first closing section and is particularly fixed on this. The first and second securing parts can in particular be part of a magnetic closure, via which the closure assembly is additionally secured in its closed position against adjustment to the release position.

In one embodiment variant, the securing mechanism has at least one securing part which, after the closure assembly has been transferred into its closure position, can be adjusted by pivoting about at least one joint axis into a securing position that secures the closure assembly. In the securing position, the at least one securing part therefore secures the closure assembly present in its closed position against removal from the third closure part. In this case, the securing part can be pivoted about its joint axis into its securing position after the locking assembly has been adjusted into the locking position. In this embodiment variant, the at least one securing part is then, for example, subsequently pivoted into its securing position by the user in order to additionally secure the locking assembly.

The joint axis can be defined, for example, by a joint via which the at least one securing part is articulated on the closure assembly, on a third closure part of the closure device or on a wall connected to the first or second closure section. In the last case, the securing part can therefore be articulated on a front, first or rear, second wall along a viewing direction (perpendicular to the longitudinal extent of the first and second strip bodies) towards the closure composite present in its closed position.

For example, the joint axis is defined by a film hinge or a film. A pivotable securing part can be provided on the closure device comparatively inexpensively using a film hinge or a film. For example, the film defining the joint axis can be a section of a wall of the drinking bladder to which one of the closing sections is connected,

In order to keep the closure device as compact as possible, one embodiment variant provides that the at least one securing part is connected to the third closure part via the film hinge. The at least one securing part is then articulated to the third closure part via the film hinge and therefore does not have to be provided on a separate component.

In one embodiment variant, a positive connection, which in particular absorbs shear forces and/or lifting forces, is provided between the closure assembly present in the closure position and the third closure part via the at least one securing part present in its securing position. For example, the securing part can also be pivoted into its securing position relative to a third strip body of the third closure part via the film hinge and then be positively connected to the closure assembly after the closure assembly has assumed the closure position. The securing part can be provided at a longitudinal end of the third strip body via the film hinge. For example, the securing part is tab-shaped, in particular strip-shaped.

For a positive connection via the securing part in the securing position pivoted about the joint axis, at least one receptacle can be provided on the at least one securing part, into which a further securing part of the securing mechanism engages in a form-fitting manner in the securing position. For example, an opening is provided on the securing part for this purpose, into which a projecting pin or web of the further securing part engages in the securing position. Alternatively or additionally, at least one form-fitting element can be provided to the at least one securing part, which in the securing position engages in a form-fitting manner in a receptacle of a further securing part of the securing mechanism. A corresponding form-fitting element can then also be formed here by a pin or web, which is inserted into a corresponding receptacle of another securing part. A further securing part mentioned above can be formed in particular on a closure part of the closure assembly, for example on the first closure part.

Alternatively or additionally, the securing mechanism can have at least one securing part for targeted mechanical securing (based on a longitudinal direction of the strip bodies and thus on the transverse direction) on the longitudinal side present ends of the closure assembly on a wall or on a third closure part. Such securing at the longitudinal end primarily counteracts vertical lifting and, if necessary, additional shearing. A securing part that can be used for this purpose includes, for example, a hinged securing part already mentioned above. However, this also means an alternative embodiment variant in which, for example, a securing part is formed with a Velcro strip, an O-ring or a sleeve placed over a longitudinal end.

As already mentioned above, the closure assembly with the first and second closure parts present in the closed position can be transferred from the release position into the closure position by pivoting the closure assembly about a pivot axis parallel to a first spatial direction (e.g. based on a Cartesian coordinate system of the x direction). . The closure assembly is consequently folded around the pivot axis parallel to the first spatial direction, for example by approximately 180°. A (resulting) magnetic force for holding the closure assembly in its closure position with respect to the third closure part then acts along a spatial axis which is parallel to a second spatial direction (y) which runs perpendicular to the first spatial direction. In such a variant, the closure assembly is secured via the securing mechanism against removal from the third closure part due to shear force, i.e. against removal due to a shear force that points in a third spatial direction (-z), which is both perpendicular to the first spatial direction (x) as well as perpendicular to the second spatial direction (y). If a shearing force that points in the third spatial direction acts on the closure assembly, the closure assembly is secured via the securing mechanism against displacement in this spatial direction and thus against displacement into the release position.

For example, the closure assembly can be folded over from the release position into the closure position, in which the closure assembly is then secured via the securing mechanism against displacement relative to the third closure part beyond an approved dimension along the third spatial direction and thus also against folding back. This third spatial direction is in the opposite direction to a directional component along which the closure composite is folded into the closure position. In this way, the securing mechanism can also prevent the closure assembly from being lifted or sheared off from the third closure part as a result of a load applied to the closure device, for example a Load that is due to an increased internal pressure in a cavity closed by the closure device.

One embodiment variant provides that a securing part, which blocks the closure assembly against adjustment along the third spatial direction, is initially in an intermediate position when the closure assembly reaches the closure position and can only then be moved into an engagement position. It can be provided here that the securing part of the securing mechanism is (merely) positioned in the intermediate position by magnetic attraction when the locking assembly is transferred to its locking position.

In one variant, alternatively or additionally, the displacement into the engagement position, in which, for example, one securing part engages behind another securing part of the securing mechanism, can be supported by at least one (additional) magnetic element. At least one magnetic element can be provided, under the action of which the at least one securing part is moved from the intermediate position into the engagement position. When the closure assembly has assumed its closed position and the securing part is therefore in the intermediate position, the adjustment of the securing part into the engagement position is consequently supported further under the effect of a magnetic force.

The magnetically supported adjustment from the intermediate position to the engagement position can also include a bistable state for the position of the securing part being specified via a magnet arrangement of the securing mechanism when the locking assembly is in its locked position. The securing part is then initially held in the intermediate position via the magnet arrangement. However, if a load then acts on the closure device, through which the closure assembly would be displaced in the direction of the release position, an associated slight displacement movement of the securing part leads to a change in mutually attractive magnetic elements and, associated with this, a magnetically supported displacement of the securing part into the engagement position. This includes in particular that the securing mechanism is set up to allow a slight displacement movement of the securing part in the effective direction of the shearing force under the effect of a shearing force acting on the closure assembly, which then leads to the magnetically supported displacement of the securing part into the engagement position.

Regardless of whether the securing part is moved from the intermediate position into the engagement position with magnetic support, an embodiment variant can provide that the at least one securing part can be displaced from the intermediate position into the engagement position under the effect of increased internal pressure in a cavity accessible via the opening. The securing mechanism here is consequently designed in such a way that the securing part automatically shifts into the engagement position when an increased internal pressure, i.e. which exceeds a threshold value, acts in the cavity. After filling liquid into the cavity of the drinking bladder, especially during transport or loading, an internal pressure can increase to such an extent that the securing part on the securing mechanism of the closure device automatically shifts from the intermediate position into the engaged position. In such an embodiment variant of the proposed closure device, a closure position of the closure assembly is automatically secured, i.e., without user attack on the security mechanism, additionally mechanically against adjustment to the release position. After the load on the drinking bladder has been eliminated, the securing part can then be automatically reset to the intermediate position, which in turn makes it easier to release the securing mechanism and thus open the closure device. For a user, the additional mechanical securing of the closure position provided by the security mechanism does not have a disruptive influence on the opening of the closure device.

In one embodiment variant, the first strip body of the first closure part is enclosed, for example, between an inner layer and an outer layer of a first wall, which borders a cavity of the hollow body to be closed by the closure device. Additionally or alternatively, the second strip body of the second closure part can be enclosed between an inner layer and an outer layer of a second wall of the hollow body. The respective strip body, which can be designed as a solid strip-shaped band, is therefore located in an intermediate layer between the inner layer and the outer layer and is thus enclosed between the layers and thus covered inwards by the inner layer and outwards by the outer layer .

In one embodiment variant, the first closing section is through the inner layer of the first wall and the second closing section is through the inner layer of the second Wall formed. The closing section of the respective wall is thus integrally formed on the inner layer of the respective wall. In the closed position, the closing sections lie flat against each other and create a sealing closure, so that the hollow body is sealed to the outside, in particular so fluid-tight that no moisture can get into the interior of the hollow body.

In one embodiment variant, the first wall and/or the second wall are flexible. In particular, both the first wall and the second wall can be flexible and flexible, so that the hollow body can be deformed in a flexible, easily formable manner and can thus adapt its shape to accommodate a liquid. The hollow body is designed like a bag by the walls.

In principle, first and second walls, to which the first and second closing sections of a proposed closure device are connected, can be part of a continuous wall element. The first and second walls can therefore in particular be formed in one piece. For example, first and second walls, which are opposite one another in a cross-sectional view, can be formed by a single, one-piece wall element in the form of a blow molded part.

The attached figures illustrate exemplary possible embodiment variants of the proposed solution. The statements according to the Figures 1 to 9c do not fall within the scope of protection of the claims.

Fig. 1

eine Ansicht einer Trinkblase mit einem Hohlkörper und einer Verschlusseinrichtung nach einem Ausführungsbeispiel;

Fig. 2

eine Explosionsansicht der Anordnung gemäß Fig. 1;

Fig. 3A

eine frontale Ansicht der Trinkblase;

Fig. 3B

eine Schnittansicht entlang der Linie A-A gemäß Fig. 3A;

Fig. 3C

eine vergrößerte Ansicht im Ausschnitt B gemäß Fig. 3B;

Fig. 4

eine Ansicht einer Trinkblase mit einem Hohlkörper und einer Verschlusseinrichtung nach einem weiteren Ausführungsbeispiel;

Fig. 5

eine Explosionsansicht der Anordnung gemäß Fig. 4;

Fig. 6A

eine frontale Ansicht der Trinkblase;

Fig. 6B

eine Schnittansicht entlang der Linie C-C gemäß Fig. 6A;

Fig. 6C

eine vergrößerte Ansicht im Ausschnitt C gemäß Fig. 6B;

Fig. 7

eine Ansicht einer Trinkblase mit einem Hohlkörper und einer Verschlusseinrichtung nach einem wiederum anderen Ausführungsbeispiel;

Fig. 8

eine Explosionsansicht der Anordnung gemäß Fig. 7;

Fig. 9A

eine frontale Ansicht der Trinkblase;

Fig. 9B

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

Fig. 9C

eine vergrößerte Ansicht im Ausschnitt B gemäß Fig. 9B;

Fig. 10A-10B

eine Weiterbildung der in den Fig. 1 bis 9C gezeigten Trinkblase, an der zusätzlich ein vorgeschlagener Sicherungsmechanismus vorgesehen ist, der in zwei unterschiedlichen Stellungen dargestellt ist;

Fig. 11A-11B

eine weitere Ausführungsvariante mit einem zusätzlichen Sicherungsmechanismus, der hier zwei streifenförmige Sicherungslaschen aufweist, die in der Fig. 11A abgeklappt und in der Fig. 11B in eine Sicherungslage geschwenkt sind;

Fig. 12

in geschnittener und mit der Fig. 3C übereinstimmender Ansicht eine weitere Ausführungsvariante, bei der ein Sicherungsmechanismus mit zwei sich im Belastungsfall hintergreifenden Sicherungsteilen vorgesehen ist;

Fig. 13

in mit der Fig. 12 übereinstimmender Ansicht eine Weiterbildung, bei der das Erreichen einer gewünschten Position eines Sicherungsteils des Sicherungsmechanismus magnetisch unterstützt ist;

Fig. 14

in mit der Fig. 12 übereinstimmender Ansicht eine weitere Weiterbildung, bei der über einen vorspringenden Sicherungssteg eine zusätzliche mechanische Sicherung bereitgestellt ist;

Fig. 15

in Vorderansicht eine weitere Ausführungsvariante einer vorgeschlagenen Trinkblase mit einer weiteren Ausführungsvariante einer vorgeschlagenen Verschlusseinrichtung;

Fig. 15A

eine Schnittansicht entsprechend der Schnittlinie A-A der Fig. 15;

Fig. 16A-16C

jeweils in vergrößerter Ansicht des Ausschnitts C gemäß Figur 15A eine Weiterbildung der Verschlusseinrichtung in unterschiedlichen Phasen beim Schließen und Öffnen, bei der ein Sicherungsteil des Verschlussverbundes magnetkraftgesteuert in eine Eingriffsposition verlagert wird, wenn der Verschlussverbund eine Verschlusslage einnimmt, und die Eingriffsposition durch ein zusätzliches verschlussverbundseitiges Formschlusselement definiert ist;

Fig. 17A-17B

in mit den Fig. 16A bis 16C übereinstimmenden Ansichten eine weitere Ausführungsvariante in unterschiedlichen Phasen beim Schließen der Verschlusseinrichtung;

Fig.18A-18B

in mit den Figuren 17A und 17B übereinstimmenden Ansichten eine weitere Ausführungsvariante, bei der ein verschlussverbundseitiges Sicherungsteil an dem ersten Verschlussteil vorgesehen ist.

Show here:

Fig. 1

a view of a drinking bladder with a hollow body and a closure device according to an exemplary embodiment;

Fig. 2

an exploded view of the arrangement Fig. 1 ;

Fig. 3A

a frontal view of the hydration bladder;

Fig. 3B

a sectional view along line AA according to Fig. 3A ;

Fig. 3C

an enlarged view in detail B according to Fig. 3B ;

Fig. 4

a view of a drinking bladder with a hollow body and a closure device according to a further exemplary embodiment;

Fig. 5

an exploded view of the arrangement Fig. 4 ;

Fig. 6A

a frontal view of the hydration bladder;

Fig. 6B

a sectional view along the line CC according to Fig. 6A ;

Fig. 6C

an enlarged view in detail C according to Fig. 6B ;

Fig. 7

a view of a drinking bladder with a hollow body and a closure device according to yet another embodiment;

Fig. 8

an exploded view of the arrangement Fig. 7 ;

Fig. 9A

a frontal view of the hydration bladder;

Fig. 9B

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

Fig. 9C

an enlarged view in detail B according to Fig. 9B ;

Figs. 10A-10B

further training in the 1 to 9C hydration bladder shown, on which a proposed safety mechanism is additionally provided, which is shown in two different positions;

Figs. 11A-11B

a further embodiment variant with an additional security mechanism, which here has two strip-shaped security tabs which are in the Fig. 11A folded down and in the Fig. 11B are pivoted into a securing position;

Fig. 12

in cut and with the Fig. 3C According to the same view, a further embodiment variant is provided, in which a safety mechanism is provided with two safety parts that engage behind each other in the event of a load;

Fig. 13

in with the Fig. 12 According to the same view, a further development in which reaching a desired position of a securing part of the securing mechanism is magnetically supported;

Fig. 14

in with the Fig. 12 According to the same view, a further development in which an additional mechanical security is provided via a projecting safety bar;

Fig. 15

in front view a further embodiment variant of a proposed drinking bladder with a further embodiment variant of a proposed closure device;

Fig. 15A

a sectional view corresponding to section line AA Fig. 15 ;

Figs. 16A-16C

each in an enlarged view of section C according to Figure 15A a further development of the closure device in different phases when closing and opening, in which a securing part of the closure assembly is moved into an engagement position under magnetic force control when the closure assembly assumes a closure position, and the engagement position is defined by an additional positive locking element on the closure assembly side;

Figs. 17A-17B

in with the 16A to 16C Matching views show a further embodiment variant in different phases when closing the closure device;

Fig.18A-18B

in with the Figures 17A and 17B Matching views show a further embodiment variant, in which a locking part on the closure composite side is provided on the first closure part.

Figs. 1 to 3A-3C show views of a first exemplary embodiment of a drinking bladder 1, which has a hollow body 10, which is bordered by walls 100, 101 and is designed to hold a liquid that can flow away via an outlet 10A provided on the hollow body 10, for example into a drinking tube connected thereto .

The walls 100, 101 are connected to one another at parallel side edges lying apart along a transverse direction x and at a lower edge along a vertical direction z, for example by welding, and are to be closed in the area of an upper end by a closure device 2 in such a way that an inner volume of the Hollow body 10 or a cavity defined hereby is sealed in a closed position of the drinking bladder 1. As shown in the sectional view Fig. 3C As can be seen, each wall 100, 101 is formed by two layers 106, 107, of which an inner layer 106 points towards the inner volume of the hollow body 10 and an outer layer 107 points outwards.

The walls 100, 101 are designed to be flexible, so that the hollow body 10 can be flexibly deformed in order to be able to expand when a liquid is absorbed in the hollow body 10.

The closure device 2 has three closure parts 20, 21, 22. Of these closure parts 20, 21, 22, a first closure part 21 is arranged on a closing section 104 of the first wall 100, while a second closure part 20 is arranged on a closing section 105 of the second wall 101 in such a way that the closure parts 20, 21 are along the vertical direction z extend at the same height on the respectively assigned wall 100, 101. The closure parts 20, 21 interact in a magnetically attractive manner, so that in the closed position of the closure device 2, the closing sections 104, 105, which are each formed by the inner layer 106 of the associated wall 100, 101, lie flat against one another and thus sealingly and form a closure composite 2V .

A third closure part 22 is arranged on a section 102 of the first wall 100 that is offset from the closing section 104 of the first wall 100 and is in cross section, viewed along an extension path starting from the closing section 104 Fig. 3C , arranged transversely offset from the first closure part 21.

The closure parts 20, 21, 22 each have a strip body 202, 212, 222, which extends longitudinally along the transverse direction x and thus extends transversely to the vertical direction z.

The closure parts 20, 21, 22 are designed to work together in a magnetically attractive manner. In the exemplary embodiment shown, the strip bodies 202, 212, 222 are each made of a magnetically acting material, for example in that the strip bodies 202, 212, 222 are made of a plastic material or a silicone material in which magnetically active particles are embedded.

The strip bodies 202, 212, 222 can each have a permanent magnetic effect and then point towards each other in pairs with opposite poles in such a way that the strip bodies 202, 212, 222 are in the in Fig. 3C magnetically attract each other in the sequence shown. Alternatively, for example, only the strip body 212 of the first closure part 21 can act permanently magnetically, while the other strip bodies 202, 222 are designed to be ferromagnetic, so that the associated closure parts 20, 22 act as a magnetic anchor. It is also conceivable, for example, that the closure parts 20, 21 on their strip bodies 202, 212 are designed to be permanently magnetic, while the strip body 222 of the third closure part 22 has a ferromagnetic effect.

Like, for example Fig. 3C As can be seen, the strip bodies 202, 212, 222 are enclosed between the inner layer 106 and the outer layer 107 of the respectively assigned wall 100, 101. The strip bodies 212, 222 of the closure parts 21, 22 are enclosed between the inner layer 106 and the outer layer 107 of the first wall 100, while the strip body 202 of the closure part 20 is enclosed between the inner layer 106 and the outer layer 107 of the second wall 101 is.

By means of the first closure part 21 and the second closure part 20, the closing sections 104, 105 are pressed flat against one another in such a way that the closing sections 104, 105 formed by the inner layers 106 of the walls 100, 101 rest against one another in the manner of membranes and the hollow body 10 thus seal tightly. The third closure part 22 holds the closure composite 2V formed by the closure parts 20, 21 in a defined closure position, with the walls 100, 101 being folded by 180° in an area between the closure sections 104, 105 and transversely to the closure sections 104, 105 offset sections 102, 103 is effected as shown Fig. 3C is visible. This further improves the tightness of the closure device 2 in the closure position.

The first closure part 21 and the second closure part 20 each have a handle element 200, 210 that a user can grab. By acting on the closure parts 20, 21, the closure parts 20, 21 can be released in particular from the further, third closure part 22 and adjusted into a release position. In this release position, the closure parts 20, 21 can be moved along an opening direction y, which is directed perpendicular to the transverse direction x and to the vertical direction z, away from each other and thus the closing sections 104, 105 are separated from one another, so that the interior of the hollow body 10 is accessible through the opening thus released.

In an in Figs. 4 to 6A-6C In the exemplary embodiment shown, the strip bodies 202, 212, 222 are not made entirely of a magnetic material, but rather each have an arrangement of receiving openings 201, 211, 221, in which discrete magnetic elements of a magnet arrangement 23, 24, 25 are accommodated. The discrete magnetic elements are lined up along the transverse direction Seal closing sections 104, 105.

The discrete magnetic elements of the magnet arrangements 23, 24, 25 can each be formed by discrete permanent magnets, for example made of a neodymium material. However, it is also conceivable that only one magnet arrangement 23, 24, 25 or two of the magnet arrangements 23, 24, 25 have discrete permanent magnets, while the other magnet arrangements 23, 24, 25 are formed from discrete ferromagnetically active elements.

Otherwise the exemplary embodiment is as follows Figs. 4 to 6A-6C functionally identical to the exemplary embodiment Figs. 1 to 3A-3C , especially with regard to the production of parts of the drinking bladder 1 from a material containing an antimicrobial additive, so that reference should be made in full to the previous explanations in this regard.

The exemplary embodiment according to Figs. 7 to 9A-9C corresponds to the exemplary embodiment Figs. 4 to 6A-6C , in which case there is no third closure part 22, as in the exemplary embodiment according to Figs. 4 to 6A-6C , is present and the closure device 2 is thus formed by only two closure parts 20, 21. Otherwise, the hydration bladder 1 has the same function as the hydration bladder 1 Figs. 4 to 6A-6C .

The 10A to 18B show embodiment variants of the proposed solution, in which the closure device 2 is further developed with a security mechanism S. The locking position of the locking assembly 2V is additionally secured mechanically via this securing mechanism S. Here is the Securing mechanism S is designed in particular to absorb shear forces (in the xz plane or in the vertical direction z, -z) and/or lifting forces (in the spatial direction y) which are the result of an increased internal pressure in the hollow body 10, for example due to a liquid absorbed therein , works. Under the effect of these shearing forces, there is otherwise an increased risk that the closure assembly 2V will be removed from the third closure part 22 and folded (upwards) into the release position about the spatial axis parallel to the x-direction and, in addition, the two closure parts 20 and 21 will be removed from one another become.

In the embodiment variant of 10A and 10B an additional securing element in the form of a securing tab 3 is arranged on the closure assembly 2V. This securing tab 3 is fixed to the second closure part 20 and forms a carrier body for a pair of first securing parts 3.1, 3.2. The first securing parts 3.1 and 3.2 protrude from an inside 31 of the securing tab 3 with a securing pin and are completely covered by an outside 30 of the securing tab 3 in the closed position of the locking assembly 2V.

If the locking compound 2V is in its locking position according to the Fig. 10B folded, the first securing parts 3.1, 3.2 automatically engage in a form-fitting manner into second securing parts 4.1 and 4.2 of the securing mechanism S arranged on the wall 100. On the second securing parts 4.1 and 4.2, which are arranged at a distance from the third closure part 22 in the z direction, engagement openings 41 and 42 are formed, into which the securing pins of the first securing parts 3.1 and 3.2 each engage. In the present case, a magnet arrangement is provided in a pair of first and second securing parts 3.1/4.1, 3.2/4.2 in such a way that the first securing parts 3.1 or 3.2 are each magnetically supported and adjusted into a positive locking position on the respective second securing part 4.1 or 4.2 when the first Securing part 3.1, 3.2 was sufficiently close to the associated second securing channel 4.1, 4.2 when folding over the locking assembly 2V and thus to the securing tab 3. The respective first securing part 3.1, 3.2 is guided into the intended position under the action of the respective magnet arrangement along an insertion gap 410 or 420, which is provided at the engagement opening 41, 42 of its associated second securing part 4.1 or 4.2 and runs radially with respect to the engagement opening 41 or 42 Locking position shifted. A pair of securing parts 3.1/4.1, 3.2/4.2 each form a magnetically supported closure.

If the closure assembly 2V is in the intended closure position with respect to the third closure part 22, the closure assembly 2 is additionally mechanically secured against folding back into the release position via the securing mechanism S and the interlocking securing parts 3.1/4.1, 3.2/4.2. In order to release the securing mechanism S, the securing tab 3 must be specifically applied by a user with a releasing force F _L in order to disengage the first and second securing parts 3.1/4.1, 3.2/4.2. Here, the release force F _L must be applied in order to move the first securing parts 3.1, 3.2, which are fixed to the securing tab 3, along the respective insertion gap 410 or 420 out of an engagement opening 41 and 42 of the associated wall-side second securing part 4.1 and 4.2. In the exemplary embodiment shown, the insertion gaps 410 and 420 extend parallel to one another in the z direction, so that the release force F _L must be applied to the securing tab 3 along the z direction.

Alternatively, a different orientation of the insertion gaps 410, 420 is of course also possible. In particular, it is conceivable that the insertion gaps 410, 420 are each open in the transverse direction x and therefore the securing tab 3 must first be displaced transversely before the closure assembly 2V can be folded back and thus removed from the third closure part 22.

In the embodiment variant of 11A and 11B the securing mechanism S has two securing parts in the form of narrow, strip-shaped securing tabs 223A, 22B, each of which is provided via a film hinge 222A or 222B at a longitudinal end of the third strip body 222 of the third closure part 22. The securing tabs 223A and 223B are therefore each attached to the strip body 222 of the third closure part 22 via a film hinge 222A or 222B.

In addition, additional securing parts of the securing mechanism S in the form of securing pins 204A and 204B are formed on the second strip body 202 of the second closure part 20. The securing pins 204A and 204B protrude on the strip body 202 in the y-direction when the closure composite 2V is in its closed position with respect to the third closure part 22. On the securing tabs 223A and 223B, (shear force) receptacles 224A and 224B are formed in the form of through openings, which are connected to the respective film hinge 222A and by folding over the securing tabs 223A and 223B 222B defined and parallel to the z-direction running joint axis can be brought into positive engagement with an associated locking pin 204A or 204B.

The securing pins 204A and 204B are each provided at a distance from a longitudinal end of the strip body 202, so that a securing tab 223A or 223B always encompasses at least one end of the strip body 202 when its receptacle 224A or 224B is engaged with the associated securing pin 204A or 204B . A flat section of the respective securing tab 223A or 223B is therefore directly opposite a section of the strip body 202.

In order to be in the defined and in the Fig. 11B To support the visible securing position of the securing tabs 223A, 223B, the positive connections between the securing tabs 223A, 223B of the third closure part 22 and the second closure part 20 of the closure assembly 2V, a magnet arrangement with magnetic elements 205A, 205B on the closure assembly 2V and magnetic elements 225A, 225B on the Locking tabs 223A, 223B may be provided. The magnetic elements 205A, 205B of the closure assembly 2V, which are in the Fig. 11A are arranged, for example, on the second strip body 202 of the second closure part 20, thereby interacting in a magnetically attractive manner with the magnetic elements 225A and 225B of the securing tabs 223A or 223B. In this way, the contact of the folded securing tabs 223A, 223B on the strip body 202 and the engagement of a respective strip body-side securing pin 204A, 204B in a tab-side receptacle 224A or 224B are supported.

Also via the securing tabs 223A and 223B of the securing mechanism S, which are articulated on one side of the third closure part 22, in the variant of 11A and 11B In particular, the closure assembly 2V is lifted off from the third closure part 22 or the longitudinal ends of the strip bodies of the closure parts 20, 21, 22 from each other (in the spatial direction y) under the effect of an increased internal pressure in the hollow body 10 and thus an undesirable opening of the closure device 2 at a cavity 10 filled with liquid is counteracted.

In the design variants of Figures 12, 13 and 14 is the closure device 2 in a sectional view corresponding to Figure 3C shown. In everyone with the Figures 12, 13 and 14 The embodiment variants shown is the closure device 2 again designed with an additional safety mechanism S. This securing mechanism S again acts to remove the closure assembly 2V present in the closure position from the third closure part 22 and thus in particular to shear off the third closure part 22 and, if necessary, to separate the two closure layers 104 and 105 from one another by a defined positive fit - here between the closure assembly 2V and the third closure parts 22 - opposite. However, the securing mechanism S is designed in such a way that by pulling on the closure assembly 2V along the spatial direction y with a release force F _L - at least in an unloaded state of the closure device 2 - the closure assembly 2V can be easily removed from the third closure part 22 by a user and can be folded back into the release position (upwards) if, for example, liquid is to be refilled into the hollow body 10 via the opening between the closing sections 104 and 105.

In the embodiment variant of Figure 12 the securing mechanism S has a first securing part in the form of a securing hook 216 on the first closure part 21. The securing hook 216 protrudes in the closed position of the closure assembly 2V in the -y direction on the first closure part 21 in the direction of the (first) wall 100. For example, the safety hook 216 is formed on the handle element 210 for this purpose.

In the closed position of the locking assembly 2V, the securing hook 216 lies opposite a securing recess 226 of a second securing part of the securing mechanism S, which is formed by the third locking part 22. The securing recess 226 is open in the z direction, so that the -y direction on the first closure part 21 protruding securing hooks 216 with a hook end projecting in the -z direction engage in the securing recess 226 in a form-fitting manner and can therefore locally engage behind the third closure part 22.

In the closed position of the locking assembly 2V, the securing hook 216 is initially in an intermediate position in which the securing hook 216 does not (yet) engage with its hook end in the securing recess 226. However, the securing hook 216 lies opposite the securing recess 226 in the intermediate position in such a way that when there is a load on the closure device 2 due to an increased internal pressure in the hollow body 10 and a resulting pressure or shear force component F _D on the closure assembly 2V, which is in the direction -z works, the safety hook 216 with the Securing recess 226 is brought into positive engagement. Under the effect of the increased internal pressure, the securing hook 216 is shifted into an engagement position in which the securing hook 216 engages behind a section of a second securing part formed by the third closure part 22 and thus blocks the closure assembly 2V against removal from the third closure part 22. This means that the 2V closure system is also protected against folding over (in the Figure 12 clockwise) about the spatial axis parallel to the spatial direction -x locked in the release position.

In the further education of the Figure 13 A positioning section 227 projecting in the y direction is provided on the wall 100 opposite the safety recess 226. This wall-side positioning section 227 carries a magnetic element 227M, which interacts in a magnetically attractive manner with a magnetic element 210M of the first closure part 21. In this case, the magnetic element 210M on the closure part side is integrated in the handle element 210 as an example. The magnetic attraction between the magnetic elements 210M and 227M can be used to ensure the intended positioning of the securing hook 216 with respect to the securing recess 226 by folding the locking assembly 2V into its closed position. In this way, it can be ensured in particular that the securing hook 216 engages as desired in an engagement opening 2260 formed between the securing recess 226 and the positioning pin 227 when the locking assembly 2V is folded over into its closed position and is opposite the securing recess 226 as intended in such a way that a positive, locking engagement of the safety hook 216 into the safety recess 226 is possible.

The magnetic elements 227M and 210M can also be used to support the securing hook 216 in taking the engagement position. The magnetic elements 227M and 210M can work together in such a way that the securing hook 216 comes out of the in the Figure 13 The intermediate position shown is automatically shifted into the engagement position or at least a corresponding adjustment into the engagement position is supported. If the securing hook 216 thus engages the engagement opening 2260 as intended when the closure assembly 2V is folded over into the closure position, the securing hook 216 is driven further into the engagement position under the action of the magnetic elements 227M and 210M. In the engaged position, the securing hook 216 then engages behind the third closure part 22. In the securing position defined thereby, there is already a positive locking engagement between the closure assembly and the third Closure part 22 given, which is in the securing position of the embodiment variant Figures 12 is only produced by loading the closure device 2.

In the embodiment variant of Figure 14 a securing part in the form of a securing web 207 is provided on the closure assembly 2V as part of the securing mechanism S. This securing web 207 is formed on the second closure part 20 and, in the closed position of the closure assembly 2V, projects from the second closure part 20 in the direction of the first wall 100 and thus in the -y direction. The securing web 207 protrudes so far that one end of the securing web 207 engages under or engages behind the third closure part 22 - viewed in the z direction. In the -z direction, the securing web 207 and thus the closure assembly 2V present in its closed position cannot be displaced past the third closure part 22. Adjusting the closure assembly 2V in the -z direction is thus mechanically blocked by the interaction of the securing web 207 with the third closure part 22. This also prevents the closure assembly 2V from being removed from the third closure part 22 due to shear force, for example due to increased internal pressure in the cavity 10. The securing web 207 must first be adjusted away from the wall 10 and thus also from the third closure part 22 by a targeted displacement of the closure assembly 2V in the y direction, so that the securing web 207 no longer blocks the closure assembly 2V from folding over.

The Fig. 15 shows a front view of a further embodiment variant of a proposed drinking bladder 1 with an outlet 10A for connecting a drinking hose to the hollow body 10. The Fig. 15A shows the drinking bladder 1 of the Fig. 15 in sectional view. The Figs. 16A-16C , 17A-17B and 18A-18B show further variants of the closure device 2 in an enlarged view corresponding to section C of Figure 15A .

In the variant of Figures 16A-16C is analogous to the exemplary embodiment Figure 13 the closure assembly 2V is designed with an additional securing component in the form of a securing hook 206, which can positively engage in a securing recess 226 on the third closure part 22 in the closure position of the closure assembly 2V in order to additionally mechanically secure the closure position of the closure assembly 2V. In contrast to the exemplary embodiment Figure 13 The securing hook 206 is not on the first closure part 21, but on the second closure part 20, here as an example Handle body 2000 of the handle element 200 is formed. This means that the safety hook 206 is in the embodiment variant 16A to 16C on the second closure part projecting in the direction of the wall 100, which lies in front of the first and third closure parts 21, 22 when viewed along the direction -y (opposite to the opening direction y) in the closed position of the closure composite 2V.

An engagement opening 2260 for the securing hook 206 on the closure composite side is again defined on the wall 100 between the strip body 222 of the third closure part 22 and a positioning section 227 spaced therefrom in the vertical direction z. In order to facilitate the insertion of the safety hook 206 into the engagement opening 2260, the handle body 2000 is articulated on the strip body 202 of the second closure part 20. For this purpose, a wall thickness is specifically reduced in a transition section A between the strip body 202 and the handle body 200 adjoining it in the vertical direction z and in the cross section of the 16A to 16C visible as an indentation. In this way, a targeted elasticity is introduced between the strip body 202 and the handle body 2000 at the transition section A in order to be able to shift the handle body 2000 relative to the strip body 202 on the user side about a joint axis that runs parallel to the transverse direction x. The handle body 200 can thus be connected to the strip body 202 in particular via a film hinge defined with the transition section A.

By transferring the closure assembly 2V into its closure position according to the Fig. 16A the securing hook 206 is inserted into the engagement opening 2260 and is initially in an intermediate position corresponding to Fig. 16A before. The locking assembly 2V is then secured with the securing hook 206 along the vertical direction -z (in the 16A to 16C upwards). This results in a displacement of the securing hook 206 from the intermediate position into an engagement position in which the securing hook 206 engages in a form-fitting manner in the securing recess 226 on the third closure part 22.

In order to specify and, if necessary, additionally secure the engagement position between the locking hook 206 on the locking composite side and the third locking part 22, a positive connection is provided between the handle body 2000 and the positioning section 27. There is a positive locking element in the form of a locking lug 200R on the handle body 2000 at a distance from the securing hook 206 educated. This locking lug 200R snaps positively into a locking opening 227R on the positioning section 227 when the locking assembly 2V with the securing hook 206 is displaced from the intermediate position into the engagement position (see Fig. 16B ).

In order to release the securing mechanism S and thus bring the securing hook 206 out of engagement with the third closure part 22 again, it is sufficient that a user attacks the handle element 200 and moves the handle body 2000 outwards around the joint axis defined with the transition section A, i.e . H. swings away from the wall 100. The position of the joint axis defined by the transition section A and the securing recess 226 as well as the securing hook 206 are coordinated with one another in such a way that the securing hook 206 is displaced out of the securing recess 226 and the engagement opening 2260 by the corresponding pivoting movement. This makes it possible for a user to easily open the closure device 2, although the closure assembly 2V in the closure position is secured in several ways against unintentional opening and, in particular, counteracts shear forces acting in the xz plane and in the vertical direction -z, which result from increased internal pressure result in the hollow body 10.

The version of the 17A and 17B is basically with the design variant 16A to 16C comparable. In contrast to the version of the 16A to 16C is in the embodiment variant 17A and 17B only the positive connection in the engagement position between the handle body 2000 and the positioning section 227 is designed differently. Thus, instead of a locking lug, a locking web 200R, which protrudes in a pin-shaped cross section, is provided on the handle body 2000, which can engage in a corresponding and, for example, slot-like locking opening 227R on the positioning section 227R.

In the embodiment variant of 18A and 18B is analogous to the design variants Figs. 16A-16C and 17A-17B a securing mechanism S is provided, in which the locking assembly 2V with a securing part in the form of a securing hook 216 is displaced from an initially assumed intermediate position into an engagement position in which the securing hook 216 engages in a form-fitting manner in a securing recess 226 on the third locking part 22. The safety hook 216 is in the embodiment variant Figs. 18A-18B formed on the first strip body 212 of the first closure part 21. The strip body 212 then also acts magnetically with the positioning section 227 together to control the automatic displacement of the locking assembly 2V into the engaged position. An example of this is the design variant Figs. 18A-18B at least one additional magnetic element 212M is provided in the strip body 212 at a distance from the magnet arrangement 24 in the vertical direction -z. This at least one additional magnetic element 212M of the first closure part 21 cooperates, for example, with at least one magnetic element 227M of the positioning section 27 in order to move the closure assembly 2V, which is folded over in the direction of the wall 100, from the initially assumed intermediate position in the vertical direction -z (upwards) into the engaged position to relocate.

In an alternative embodiment variant, it is of course also possible for the closure composite 2V to be folded or rolled up several times around an axis parallel to the transverse direction x in order to assume the closure position on the wall 100. Furthermore, in order to secure the closure position using the security mechanism S, it is not mandatory that a third closure part 22 interacts in a magnetically attractive manner with the closure assembly 2V. In particular, in the embodiment variants the 10A to 18B a magnet arrangement 25 in the strip body 222 of the third closure part 22 is omitted without this affecting the functions of the security mechanism S.

Reference symbol list

1

Hydration bladder (liquid container)

10

Hollow body

10A

outlet

100, 101

wall

102, 103

Section

104, 105

Closing section

106

Internal location

107

External location

2

Closure device

2V

Closure composite

20, 21, 22

Closure part

200, 210

Handle element

200M

Magnetic element

200R

Locking lug / locking bar (positive locking element)

2000

Handle body

201, 211, 221

Recording openings

202, 212, 222

strip body

204A, 204B

Safety pin (safety part)

205A, 205B

Magnetic element

206

Safety hook (safety part)

207

Safety bar (safety part)

210M

Magnetic element

212M

Magnetic element

216

Safety hook (safety part)

222A, 222B

film hinge

223A, 223B

Locking tab (locking part)

224A, 224B

Recording

225A, 225B

Magnetic element

226

safety cutout

2260

Access opening

227

Positioning section

227M

Magnetic element

227R

Latching opening

23, 24, 25

Magnet arrangement

3

Locking tab (locking element)

3.1, 3.2

first safety part

30

Outside

31

inside

4.1, 4.2

Second safety part

41, 42

Access opening

410, 420

Insertion gap

A

Transition section

FD

Pressure/shear force component

FL

Dissolving power

S

Security mechanism

x, y, z

Direction

Claims (15)

1. A drink bladder, comprising a hollow body (10) for receiving a liquid, wherein

   - the hollow body (10) has at least one flexible wall (100, 101) and at least one port (10A) for connection to a drinking tube,

   - the liquid can be filled into the hollow body (10) via an opening that is formed between a first closing portion (104) and a second closing portion (105) and can be closed by a closure device (2) of the drink bladder (1), and

   - the closure device (2) includes a first closure part (21) on the first closing portion (104) and a second closure part (20) on the second closing portion (105), wherein

   - the first closure part (21) has a first strip body (212) longitudinally extended along a transverse direction (x),

   - the second closure part (20) has a second strip body (202) longitudinally extended along the transverse direction (x),
   characterized in that

   - the first closure part (21) and the second closure part (20) cooperate in a magnetically attracting manner in such a way that in a closed position of the closure device (2) the first closing portion (104) and the second closing portion (105) rest against each other and form a closure compound (2V) with the first and second closure parts (21, 20),

   - the closure compound (2V) can be adjusted from a release position, in which the first and second closing portions (104, 105) can be properly separated from each other against a magnetic force applied by the first and second closure parts (21, 20) to clear the opening, by folding or rolling the first and second closing portions (104, 105) at least once into a sealing position,

   - the closure device (2) comprises a securing mechanism (S) via which the closure compound (2V) disposed in its sealing position is secured and

   - the securing mechanism (S) includes at least one securing part (3.1, 4.1; 3.2, 4.2; 223A, 204A; 223B, 204B; 216, 226; 207) which secures the closure compound (2V) in the sealing position via a form fit.
2. The drink bladder according to claim 1, characterized in that via the securing mechanism (S) the closure compound (2V) disposed in its sealing position is secured against a removal of the closure compound (2V) from the sealing position due to an increased internal pressure in the hollow body (10).
3. The drink bladder according to claim 2, characterized in that the first and second strip bodies (212, 202) have two longitudinal ends and, in the closed position, the securing mechanism (S) is adapted to

   - counteract a lifting force acting on the first and second strip bodies (212, 202) at the longitudinal ends and resulting from the increased internal pressure, by action of which mutually opposite longitudinal ends of the first and second strip bodies (212, 202) strive to move away from each other, and/or

   - counteract a shear force resulting from the increased internal pressure, which acts in a middle area of the first and second strip bodies (212, 202) at the closure device (2) in a plane (xz-plane) extending parallel to the first and second closing portions (104, 105).
4. The drink bladder according to any of claims 1 to 3, characterized in that via the securing mechanism (S) a connection between the closure compound (2V) and the wall (100, 101) connected to the first or second closing portion (104, 105) is provided when the closure compound (2V) is disposed in the sealing position.
5. The drink bladder according to any of the preceding claims, characterized in that the closure device (2) comprises a third closure part (22) on the wall (100), and in the sealing position the closure compound (2V) and the third closure part (22) cooperate in a magnetically attracting manner in order to hold the closure compound (2V) in the sealing position, in particular wherein via the securing mechanism (S) an additional connection between the closure compound (2V), in particular the first or second closure part (21, 20), and the third closure part (22) is provided when the closure compound (2V) is disposed in the sealing position.
6. The drink bladder according to any of the preceding claims, characterized in that the securing mechanism (S) includes at least two securing parts (3.1, 4.1; 3.2, 4.2; 223A, 204A; 223B, 204B; 216, 226) which in the sealing position of the closure compound (2V) positively cooperate with each other in order to secure the closure compound (2V) in the sealing position, in particular wherein a first securing part (216) and a second securing part (226) are provided and the first securing part (216) is adapted to engage behind the second securing part (226) in order to secure the closure compound (2V) against removal from the third closure part (22).
7. The drink bladder according to any of the preceding claims, characterized in that the closure device (2) comprises at least one magnetic element (205A, 225A; 205B, 225B; 210M, 227M; 200M, 227M; 212M, 227M) by action of which at least one securing part (3.1, 3.2; 223A, 223B; 216, 207) of the securing mechanism (S) is positioned in a securing position in which the at least one securing part (3.1, 3.2; 223A, 223B; 216, 207) can block the closure compound (2V) against an adjustment into the release position via a form fit, in particular wherein

   - on transfer of the closure compound (2V) into its sealing position the at least one securing part (3.1, 4.1; 3.2, 4.2; 216, 226; 207) is also adjusted into the securing position by action of the at least one magnetic element or

   - the at least one securing part (223A, 223B) can be adjusted into the securing position only after transfer of the closure compound (2V) into its sealing position.
8. The drink bladder according to any of the preceding claims, characterized in that an additional securing element (3) is provided on the closure compound (2V), to which at least one securing part (3.1, 3.2) of the securing mechanism (S) is fixed at a distance to the first and second closure parts (21, 20).
9. The drink bladder according to claims 4 and 8, characterized in that the securing part (3.1, 3.2) provided on the securing element (3) forms a first securing part, which in the sealing position of the closure compound (2V) is positively connected to a second securing part (4.1, 4.2) that is provided on the wall (100).
10. The drink bladder according to any of the preceding claims, characterized in that after transfer of the closure compound (2V) into its sealing position at least one securing part (223A, 223B) of the securing mechanism (S) can be adjusted into a securing position by pivoting about at least one joint axis, in which securing position the at least one securing part (223A, 223B) secures the closure compound (2V) disposed in its sealing position, in particular wherein the joint axis extends transversely to a direction of longitudinal extension of the first and/or second strip body (212, 202).
11. The drink bladder according to any of the preceding claims, characterized in that

    - the closure compound (2V) can be transferred from the release position into the sealing position by folding or rolling the closure compound (2V) at least once about a pivot axis parallel to a first spatial direction (x),

    - a magnetic force for holding the closure compound (2V) in its sealing position with respect to the third closure part (22) acts along a spatial axis that is parallel to a second spatial direction (y) extending perpendicularly to the first spatial direction (x), and

    - via the securing mechanism (S) the closure compound (2V) is secured against removal from the third closure part (22) by action of a shear force which points in a third spatial direction (-z) that is both perpendicular to the first spatial direction (x) and perpendicular to the second spatial direction (y).
12. The drink bladder according to claim 10 and according to claim 11, characterized in that the joint axis extends parallel to the third spatial direction (-z).
13. The drink bladder according to claim 12, characterized in that the securing mechanism (S) includes at least one securing part (216) which is disposed in an intermediate position when the closure compound (2V) reaches the sealing position, and the securing part (216) can be displaced from the intermediate position into an engagement position in which the securing part (216) blocks the closure compound (2V) against an adjustment along the third spatial direction (-z), wherein in particular in the engagement position the at least one securing part (216) blocks the closure compound (2V) against an adjustment along the third spatial direction (-z) and against an adjustment along the second spatial direction (y).
14. The drink bladder according to claim 13, characterized in that the closure device (2) comprises at least one magnetic element (210M, 227M) by action of which the at least one securing part (216) of the securing mechanism (S) is automatically positioned in the intermediate position when the closure compound (2V) is transferred into its sealing position.
15. The drink bladder according to claim 13 or 14, characterized in that the closure device (2) comprises at least one magnetic element with the participation of which the at least one securing part (216) is adjusted from the intermediate position into the engagement position.

Images