EP2296993B1 - Closure device for a container - Google Patents

Description

The following invention is directed to a closure device for closing and / or opening an opening of a container according to the preamble of claim 1. Such closure devices serve to close a container having an opening edge comprising an inner and outer wall. The container may be, for example, a can, in particular beverage can, bottle, storage container or the like. Further, the container itself may be made of plastic, metal, porcelain, glass or various other materials. The closure device has a sealing element, with which the opening of the container is sealingly closed. The closure device is in the first position by means of a Closure element in particular positively secured to the container, wherein the closure element has an actuating element to open the closure element.

Normally known containers are sealingly closed by closure devices by the seal in the closure device between the closure device itself and the container, in particular an opening edge is pressed. As a result, a seal is obtained, especially in containers that build up an internal pressure. It is known that the contact pressure on the sealing element must be greater than the resulting or existing internal pressure in the container so that the closure device seals the container accordingly. Such closure devices are z. B. used in beverage bottles as a lid. Here, the lid is pressed over an existing thread with high force application with the beverage bottle, so that the sealing effect of the closure device is produced by a corresponding deformation of the seal.

From the publication FR 2 205 449 A is z. For example, a generic type closure device is known which has a complex structure _. On the other hand, a closure device designed quite simply is shown in the further document US 3,430,796 Known in the two aforementioned documents is an inflexible thief element used, which must be pressed between the container opening and the device in order to close the container pressure-tight. This mechanical pressure must therefore be applied to the sealing elements used in order to close the respective container can. Thus, the handling of the jewelligen closure device is also difficult.

Furthermore, it is known, for. B. to close a test tube with a rubber stopper, wherein the rubber stopper is designed frustoconical and is pressed with a large, hard to apply pressure in the opening edge of the test tube to close this. Also in this case, a deformation of the rubber stopper must be effected by a corresponding contact pressure. In addition, z. B. crown caps for bottles known, which also presses the sealing element between the crown cap, which serves as a closure device, and the edge of the bottle. Such crown caps have the disadvantage that they are not reusable and can only be opened with a Kronkorkenheber. Furthermore, they can only be attached by means of mechanical devices to close the bottles. In addition, there are other numerous variants of closure devices for containers of the general state of the art, all of which exert a corresponding contact pressure from above or from the inside onto the sealing element in order to deform or press it against the opening edge.

Furthermore, the present invention is also directed to a container with a closure device according to the invention. Also, the present is addressed The invention also relates to a method for closing and opening a container with a corresponding opening by a closure device according to the preamble of claim 13.

For example, from the document DE 103 12 237 A1 a closure for a can is known in which the can closure is mechanically mounted in an opening of the can lid. The closure itself is constructed in several parts and has a hinged lid, which is integrated on the closure device. With the help of the cap then the entire can is closed. This closure device has the disadvantage that, on the one hand, it must first be connected to the can in terms of manufacturing technology and, on the other hand, it does not seal the can in a gas-tight or pressure-tight manner. A buckle use of the closure is not possible.

It is therefore an object of the present invention to provide a reusable closure device that allows quick and easy handling, in particular without additional aids, when opening and closing the container. Here, the closure device should be easy and gentle on the force, especially for weak and awkward people. The present object is achieved by the features of the main claim, in particular from the characterizing part, which have the following special significance.

In the device according to the invention, it is provided that the container opening or the container can be opened only by a simple pressure (Pt) on the or the actuators. As a result, the attachment of the closure element with the container is completely solved. At the same time or subsequently, the closure device can be removed from the container opening by simply lifting. Thus, the opening of the container by means of at least one actuating element by a one-hand operation executable, although the container for increased safety with the other hand of the user can be supported, but this is not absolutely necessary. Hereinafter, only the actuating element is mentioned, even if it may involve several actuators. Also, the closure of the container is carried out in a simple manner in which the closure device is simply pressed lightly from above onto the container opening until the closure element is securely fastened to the container. The applied (closure) pressure (Pk) is independent of the possibly developing internal pressure (Pi) of the sealed container. In addition, it may be necessary for a slight pressure to be exerted on the actuating element in order to transfer the closure device to the first position (I), meaning the closure position. A time-consuming and energy-consuming tightening or pressing, which is usually carried out only with two hands, can thus be avoided. Thus, a one-handed opening of Verschlussvortichtung is possible, in particular, a one-handed closing is achievable.

Furthermore, it is inventively provided that the sealing element itself has a sealing lip, which protrudes into the opening of the container and sealingly comes by an elastic deformation on the inner wall of the opening edge to rest. Here, the sealing lip is loosely against the inner wall of the opening edge, without being pressed by another element, such as the closure device to the inner wall. The sealing lip has for this purpose z. B. a wedge-shaped or trapezoidal cross-section, which applies flexibly or highly flexible to the inner wall of the opening edge.

In the dependent claims preferred embodiments of the invention are shown.

A sealing of the container by the closure device is independent of a contact pressure (Pk), which acts from the closure device via the sealing element to the container, in particular the opening edge. Consequently, the sealing element is not pressed between the closure device and the container, in particular the opening edge, in order to seal the container in a sealing manner from above and / or also from the inside. Thus, no contact pressure must be exerted by the closure device when closing to close the container pressure-tight. A simple placing and locking the closure device, z. B. via a positive connection with the container, is sufficient for this. Thus, a contact pressure (Pk) from the closure device to the container does not produce any additional elastic deformation of the sealing element in the sealing area. Thus, the closure device according to the invention is particularly easy to operate even for weak and awkward or movement-restricted people. Unlike the conventional closure devices of the prior art, no contact pressure (Pk) must be exerted on the closure device so that the container is nevertheless reliably sealed. Rather, the pressure generated by the own weight of the sealing element and possibly closing device is sufficient for the sealing element to seal the container in a sealing manner. Thus, the closure device according to the invention is designed self-sealing, since the existing or still resulting internal pressure (Pi) is used to close the container. In this case, the internal pressure (Pi) itself presses the sealing element against the opening edge (1.2), in particular against an inner wall (1.3) of the opening edge (1.2).

As a material for the sealing element, in particular the sealing lip, PTFE, silicone, rubber or PU foam, etc. may be used, for example, while the selected material should be flexible to highly flexible. This material is easily deformed, so that the sealing lip can create and adapt fully and without effort (without power) to the inner wall of the opening edge. Initially, a closed sealing line should form between the sealing lip and the opening edge or the inner wall. By the contact points of the sealing lip at the opening edge or on the inner wall of the container is completely sealed. This material has, for example, a hardness of 10 to 90 shore A, in particular 40 to 80 shore A (according to standards DIN 53505 and DIN 7868). Preference is given to a material having a hardness of 70 shore A, since this has hitherto set the best tightness results. The material is flexible but also dimensionally stable in order to obtain the desired sealing effect. For this purpose, the sealing element may comprise a dimensionally stable core of harder material which is surrounded by a softer or more flexible material. It is also conceivable dimensional stability by constructive measures such. B. reinforcing ribs, edges or the like. Furthermore, it has proven to be advantageous if the fitting surface of the sealing lip is made smooth in the region of the sealing line.

The self-acting sealing of the container by the closure device is effected by the shape and size and the material property of the sealing element, in particular by the sealing lip. In this case, it is provided that an outer contour of the sealing element, in particular the sealing lip, is configured complementary to an inner contour of the opening edge of the container, wherein the sealing element, in particular the sealing lip fully peripherally rests against the inner wall of the opening edge. Is z. B. the inner contour of the opening of the container circular designed, so the outer contour of the sealing element is substantially circular. In a triangular opening contour and the outer contour of the sealing element is designed substantially triangular. Likewise, the size of the sealing element substantially corresponds to the size of the opening of the container to be closed. It is advisable that an outer circumference of the sealing element is slightly larger, ie a few tenths of a millimeter to millimeters, designed as the maximum size of an inner periphery of the opening edge. This configuration of the sealing element, in particular the sealing lip, the desired elastic deformation is achieved, which is required for the initial sealing of the container. For this elastic deformation no contact pressure between the closure device and the container is needed. Rather, the pure weight of the sealing element or the closure device is sufficient to effect the desired, elastic deformation of the sealing element. The inherent dimensional stability of the sealing element also helps to bring the sealing lip securely into contact with the edge of the opening or the inner wall. Otherwise, if the elastic deformations are too great, the sealing element could tend to form wrinkles or creases which are undesirable since this would prevent sealing.

As has already been mentioned above, the contact pressure (Pk) which acts on the container, in particular the opening edge, of the closure device is substantially insignificant for the functioning of the sealing element, so that it is ineffective for the purposes of this application. If the contact pressure (Pk) between the container and the closure device is too high, the sealing element can even be deformed in such a way, for example by wrinkling, that a seal no longer takes place. Consequently, the functioning of the closure device according to the invention does not depend on the contact pressure (Pk) between the container and the closure device. Also, the sealing element does not have to be additionally elastically deformed after merely placing the closure device on the opening of the container (without further fastening or locking of the closure device to the container by the mentioned positive connection), in order to properly seal the container. By the closure device according to the invention rather the container by means of the sealing element self-acting pressure-tight and / or fluid-tight sealable without a previous contact pressure (Pk) between the container and the closure device of above and or inside to produce. This makes it possible, for example, conventional gas cans or beverage bottles that build a high internal pressure (Pi) by their carbonated content, gas and liquid tight seal. Also, there is no need for a constructive change of known from the prior art container to use the closure device according to the invention.

Furthermore, it can be provided that the sealing lip of the sealing element is initially pressed only by its elastic deformation to the inner wall, wherein in particular a build-up or existing internal pressure (Pi) of the container additionally presses the sealing lip against the inner wall when the internal pressure (Pi) is greater than an external pressure (Pa), which surrounds the container from the outside. This automatically increases the existing and possibly increasing internal pressure (Pi) and the sealing effect of the sealing element and thus the closure device. Unlike conventional seals, it is thus not necessary to press the closure device more firmly against the container so that the closure device still reliably closes the container with increasing internal pressure (Pi). In the closure device according to the invention only destruction or tearing of the sealing element, in particular the sealing lip, itself leads to leakage of the sealed container.

It is also conceivable that the sealing element simultaneously acts as a valve element, so that the internal pressure (Pi) of the container adapts itself to the external pressure (Pa) of the container when the external pressure (Pa) is greater than the internal pressure (Pi). Thus, it is possible that a fluid, usually in the form of air, may enter the container from outside, but not vice versa. The higher external pressure (Pa) pushes the sealing lip away from the inner wall of the opening edge when the internal pressure (Pi) of the container is lower. However, if the internal pressure (Pi) of the container is greater than the external pressure (Pa), the internal pressure (Pi) presses the sealing lip against the inner wall of the opening edge, whereby the pressure in the container is maintained. For this purpose, it is necessary that the sealing lip is designed to be flexible in order to thus adapt to the pressure differences due to their elastic deformation. This adaptation of the sealing element also works with a hydrostatic internal pressure on the seal, for example by sloshing liquids in the container.

It may also be provided in one embodiment of the invention that the sealing element with a planar part of the entire opening of the container large area seals, wherein the sealing element has an angled edge portion of the flat part, which is essentially formed by the sealing lip. Thus, the entire opening of the container can be sealed by the sealing element alone. In another embodiment of the invention, it is conceivable that the closure device has a holding plate to which the sealing element is attached, wherein in particular the sealing element is designed only as a sealing lip and the sealing lip is pressure-tight and / or fluid-tightly arranged on the retaining plate. Thus, it can be dispensed with the large part of the sealing element, since it is replaced by the additional retaining plate. It is also conceivable that the additional retaining plate completely fixes the sealing element on its rear side. For this purpose, the sealing element can be welded to the holding plate, glued or molded. It is also conceivable that the sealing element is connected via a positive and / or positive connection with the holding plate or the closure device itself. In this case, however, the sealing element with the flat part should seal the entire opening of the container in order not to create any additional leakage problems at the intermediate points between the sealing element and retaining plate.

The closure device is itself fastened to the container by a closure element, wherein the closure element in particular by means of at least one holding means with the container via a closure, in particular a bayonet closure, a click-click closure, a clasp closure, a clamp closure, a loop closure and / or a sliding closure, cooperates. The closure element thus ensures that the sealing element withstands the internal pressure of the container, since otherwise the sealing element would be pushed away with the closure device from the opening of the container. The aforementioned closure between the closure element and the container may, for. B. exist only on a form fit. In addition, optionally provide a traction for the stationary fixation of the closure device over the opening of the container. However, this adhesion does not lead to an elastic deformation of the sealing element at the sealing areas, in particular the sealing lip.

In order to improve the operation of the closure device, it may be equipped with a security element and / or a valve, wherein the security element avoids unwanted opening of the container or makes it difficult and the valve is designed as a pressure relief or drain valve. The security element is intended to prevent the closure device from being inadvertently removed from the container. Here, the security element is matched to the existing closure. The aforementioned valve is intended to avoid an explosive, in particular uncontrolled opening of the closure device from a container under high internal pressure, by allowing the excess pressure to escape beforehand. For this purpose, the valve has an actuating means or nipple. In order to enable a particularly simple operation of the closure device, it is conceivable that the operation of the closure element leads directly or already before to an operation of the valve. Thus, forcibly the valve is actuated by means of the actuating means, whereby the possibly existing internal pressure (Pi) can escape; to open the closure device based on the actuating element. For this purpose, the actuating element may be mechanically connected to the actuating means. Also, the two aforementioned elements or means can be configured in one piece. The mentioned valve may be provided with a desired acoustic function, which can be generated by a Anblaß- or cutting edge in the valve. In this way, the area of use of the closure device, in particular for visually impaired persons and / or for advertising purposes or the like, can be significantly increased.

It is also conceivable to provide the closure device with a tamper-evident closure, whereby it can be indicated that the container had previously been closed unused by the closure device according to the invention. Such a tamper-evident closure may contain a paper and / or foil seal, e.g. Easily removable via a pull tab. Also, the tamper-evident closure may have predetermined break points which break when the closure device is first actuated to open the container.

In order to enable the easiest possible operation of the closure device, it may optionally be provided that the actuating element and / or the actuating means are configured like a key, in particular an actuation or movement by particular partial, slot-shaped incisions easier. These cuts, the may also be provided as continuous grooves in the closure device, bordering on the actuating element and / or on the actuating means. In this case, these slot-shaped incisions do not completely enclose the actuating element and / or actuating means, so that they are integrally and integrally connected with the rest of the closure device. Typically, a slot-shaped incision may be U-shaped or pot-shaped, wherein the U and the pot can stand upside down. It has also been shown in practice that it makes sense to arrange the actuating means above the actuating element, so that the actuating means can act directly on the sealing element, which is usually arranged in the upper region of the closure device. The actuating element, however, is more likely to be arranged in the lower region of the closure device, so that it can interact with a correspondingly arranged holding means.

In order to securely attach the closure device to the container so that it can withstand the internal pressure (Pi), the closure element can have at least one holding means which interacts mechanically with a counter-holding means on the container. In this case, the holding means and the counter-holding means bring about a positive connection, wherein a pressure (Pt) on the actuating element allows the form-fit to be released. The counter-holding means on the container can be formed by a particular, annular or cam-shaped projection or a particular, circumferential recess, whereas, on the other hand, the holding means may be formed on the closure element by a particular, strip-shaped portion, barb-shaped projection or part-like portion. A pressure on the actuating element causes a deformation and / or a movement in the form of a displacement or pivoting of the holding means. Thus, the pressure (Pt) on the actuating element causes the holding means to no longer interact in a form-fitting manner with the counter-holding means on the container.

In the aforementioned click-clack closure (colloquial designation of this type of closure), the closure element of the closure device on a center piece with an approximately central operating region and arranged on the middle holding means. Relative to a first position (I), in which the closure element forms a positive connection with the container, in particular with a projection or a groove on the container outer edge, the center piece has an inner Surface facing the container and an outer surface facing away from the container. The holding means, which surround the middle piece, in particular in the manner of a crenellated rim, are angled in the direction of the inner surface at an angle α. Here, the angle α is preferably slightly greater than 90 °. Each holding means is also angled at its end again in the direction of the inner surface, ideally angled perpendicularly in the direction of the longitudinal axis of the container or even slightly upwardly to achieve a secure fit between the closure element and the container.

The closure element is preferably made of hard material, in particular of metal or plastic, but nevertheless so elastic that it can assume two different positions (I, II) in the form of two secured layers. In the first position (I) closes the closure device with the closure element, the container. The middle piece covers the opening of the container. Here, it is slightly curved in the direction of the longitudinal axis of the container away. Viewed from the inner surface of the center piece of this corresponds to a concave curvature. By this curvature, the holding means extend approximately parallel to the side surface of the container having the projection. Here, the angled ends of the holding means form a positive connection with the projection. Therefore, in contrast to other containers, the container also remains closed when an attempt is made to open the container by pulling the closure element and container apart.

The container can be opened, however, when only a pressure on the actuating element or the actuating region in the direction of the longitudinal axis and in the direction of the container is exercised. The middle piece undergoes elastic deformation from one secured position to the other and bulges in the direction of the container. Viewed from the inner surface of the center of this corresponds to a convex curvature. The holding means move in the course of the elastic deformation away from the container and release the projection. As a result, the closure device with the closure element can now be released from the container easily and without force, in particular without exerting a tensile force.

If the container is to be closed again, then the closure device with the closure element with the inner side, to which the holding means point to the Container placed. The holding means still have a small distance from the projection. By a pressure on the holding means, in particular perpendicular to the longitudinal axis, the middle piece moves from the one secured position, which, viewed from the inside, corresponds to the convex curvature, into the other secured position, which, viewed from the inside, corresponds to the concave curvature, and reaches the closing element again in his first position (I).

In the case of the closure device according to the invention, provision may be made for the sealing element to be arranged or fastened in the closure element via a positive connection, a welded connection and / or a hot stamping. With a click-clack closure, the existing holding means can be used for positive fastening. Also, a protruding beyond the sealing lip edge of the sealing element can serve as a stop buffer or means for the opening edge of the container. Expediently, the sealing element does not protrude out of the closure device, so that unintentional destruction of the sealing element when the closure device is not used is reliably avoided. Thus, the closure device can be placed on a table or the like, no matter how, in the meantime, without the seal in this case can come into contact with the table.

Furthermore, it is an object of the present invention to provide a container which can be securely closed with a closure device by a simple handle without a fluid can escape from the sealed container. The object is achieved by the container having the features of claim 12. This container may be, for example, a conventional can, beverage can, storage box, bottle or the like, which may consist of a variety of materials.

Furthermore, it is an object of the present invention also to provide a method for sealing a container having an opening by a closure device, which can be handled in a simple manner and seals the opening of the container by the closure device. The object is achieved by the feature of claim 13, in particular the characterizing part, it is inventively provided that a sealing of the container by the Closure device is independent of a contact pressure (Pk), which acts from the closure device to the container, in particular the opening edge. Further advantageous embodiments of the invention are represented by the dependent claims. The inventive method can be exercised with the closure device according to the invention. Features and details which are described in connection with the closure device according to the invention, of course, also apply in connection with the method according to the invention and vice versa. The features mentioned in the claims and in the description may each be essential to the invention individually or in combination.

Figur 1

einen abgewinkelter Schnitt I-I durch ein erstes Ausführungsbeispiel der erfindungsgemäßen Verschlussvorrichtung aus Fig. 3, die die Öffnung eines Behälters verschließt,

Fig. 2

einen Querschnitt II-II durch die erfindungsgemäße Verschlussvorrichtung aus Fig. 1,

Fig.3

eine Draufsicht auf das erste Ausführungsbeispiel einer erfindungsgemäßen Verschlussvorrichtung,

Fig. 4

eine dreidimensionale Ansicht der erfindungsgemäßen Verschlussvorrichtung aus den Figuren 1 bis 3,

Fig. 5

eine dreidimensionale Ansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Verschlussvorrichtung, bei der das Betätigungsmittel mit dem Betätigungselement verbunden ist,

Fig. 6

ein Längsschnitt durch eine weitere erfindungsgemäße Verschlussvorrichtung, die mit einem Klick-Klack-Verschlusselement ausgestattet ist,

Fig.7a

eine dreidimensionale Ansicht einer weiteren erfindungsgemäßen Verschlussvorrichtung mit einem "dreiteiligen" Verschlusselement,

Fig. 7b

eine Rückansicht auf das Verschlusselement aus Fig. 7a,

Fig. 8

ein abgewinkelter Schnitt VIII-VIII durch ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Verschlussvorrichtung aus Fig. 9,

Fig. 9

ein Querschnitt IX-IX durch die Verschlussvorrichtung aus Fig. 8,

Fig. 10

eine dreidimensionale Ansicht der Verschlussvorrichtung aus den Figuren 8 und 9,

Fig. 11

ein Längsschnitt XI-XI durch ein zusätzliches Ausführungsbeispiel der erfindungsgemäßen Verschlussvorrichtung aus Fig. 12,

Fig. 12

eine Rückansicht auf die Verschlussvorrichtung aus Fig. 11 und

Fig. 13

dreidimensionale Ansicht auf die Verschlussvorrichtung aus den Figuren 11 und 12.

In the following description, preferred embodiments of the invention will be described with reference to the accompanying drawings and the description below. The exemplary embodiments are shown by way of example and not to scale. Show it:

FIG. 1

an angled section II through a first embodiment of the closure device according to the invention Fig. 3 closing the opening of a container,

Fig. 2

a cross section II-II through the closure device according to the invention from Fig. 1 .

Figure 3

a top view of the first embodiment of a closure device according to the invention,

Fig. 4

a three-dimensional view of the closure device according to the invention from the FIGS. 1 to 3 .

Fig. 5

a three-dimensional view of another embodiment of a closure device according to the invention, in which the actuating means is connected to the actuating element,

Fig. 6

a longitudinal section through a further closure device according to the invention, which is equipped with a click-clack closure element,

7a

3 shows a three-dimensional view of a further closure device according to the invention with a "three-part" closure element,

Fig. 7b

a rear view of the closure element Fig. 7a .

Fig. 8

an angled section VIII-VIII by a further embodiment of a closure device according to the invention from Fig. 9 .

Fig. 9

a cross section IX-IX through the closure device Fig. 8 .

Fig. 10

a three-dimensional view of the closure device from the FIGS. 8 and 9 .

Fig. 11

a longitudinal section XI-XI by an additional embodiment of the closure device according to the invention from Fig. 12 .

Fig. 12

a rear view of the closure device Fig. 11 and

Fig. 13

three-dimensional view of the closure device from the FIGS. 11 and 12 ,

In the following figures, the same technical features are provided with the same reference numerals, even if they are shown in another embodiment or another embodiment of the invention.

In the FIG. 1 a first embodiment of the closure device 2 according to the invention is shown, this closure device 2 closes in a first position I, the closed position, an opening 1.1 of the container 1. The closure device 2 shown in the embodiment comprises a closure element 3 with a holding means 3.3, which strip-shaped or is designed broadband-shaped. The holding means 3.3 is in the Fig. 4 clearly. In the Fig. 1 is a section (see left side) represented by the corresponding holding means 3.3. It can be seen how the strip-shaped holding means 3.3 comes form-fitting behind a projection 1.6 of the container 1 to the plant. The projection 1.6 is in Substantially ring-shaped and rises radially from the remaining diameter of an outer wall 1.4 of the container 1. Since the closure device 2 is positively connected by the closure member 3 with the container 1, and a resulting internal pressure Pi, the closure device 2 does not lift from the container opening 1.1 or Pushing away. Rather, the closure device 2 with its provided sealing element 4 closes the container 1 pressure and fluid-tight. For this purpose, the (on the kofstehende) truncated cone-shaped configured sealing element 4 with its radially encircling sealing lip 4.1 at the opening edge 1.2 of the container 1. It is also conceivable that the sealing element 4 projects into the opening edge 1.2 and also comes there with an inner wall 1.3 of the container 1 in contact. The sealing element 4 is designed flexible and easily deformable and is not pressed on or in the opening edge 1.2. Rather, it is powerless on the opening edge 1.2 and forms a closed seal line with the opening edge 1.2. Since the sealing element 4 is hollow, the internal pressure Pi can act from the inside on the sealing element 4, in particular the sealing lip 4.1, which in the present case is wedge-shaped, that is pointed down to running, designed.

So that the closure device 2 can seal pressure-tight and fluid-tight in the container 1, the sealing element 4, as already mentioned, adapts to the inner contour 1.5 of the opening edge 1.2. For this purpose, the sealing element 4 has a complementary inner contour 4.5 to the inner contour 1.5 of the container. The sealing element may itself be arranged on the closure device 2 in a force, material and / or form-fitting manner. In any case, the composite of closure device 2 and sealing element 4 must allow the sealing of the closure device 2. For this purpose, the sealing element 4 on the closure device 2, in particular in the upper part 2.2, are welded or glued. Also, a hot stamping of the sealing element 4 on the closure device 2 is conceivable.

So that the closure device 2 can be operated easily and with one hand, an actuating element 3.2 is provided on the closure element 3, which acts mechanically on the holding means 3.3. The actuator 3.2 is in the present case ( Fig. 1-4 ) designed like a key. A pressure Pt leads to a deformation of the closure element 3, whereby the strip-shaped holding means 3.3 project behind the projection 1.6, since they expand radially. Thus, after a pressure on the actuator 3.2, the closure device 2 can be removed from the container 1 or raised. The closure element 3 is substantially symmetrical and has two actuating elements 3.2, which are arranged at approximately 180 ° on the outer circumference, in particular in the region of the lower part 2.3 of the closure device 2. Also, two holding means 3.3 are provided, which are radially expanded by the two actuating elements 3.2 during actuation. The two holding means 3.3 form in cross section an oval or elliptical course to a longitudinal axis 2.1. By the pressure Pt on the two actuators 3.2, the elliptical course of the strip-shaped holding means 3.3 is radially expanded, so that it is then more or less circular and the radial projection 1.6 of the container 1 releases.

If the container 1 is equipped with a higher internal pressure Pi than the external pressure Pa of the container, a deliberate discharge of the internal pressure Pi is recommended. For this purpose, a valve 8 is provided in the closure device 2, which is to be operated via an actuating means 8.1. The actuating means 8.1 is in the embodiment of the Fig. 4 Also twice provided on the closure device 2, which are each arranged above the actuators 3.2 and are each arranged in the circumference of 180 ° to each other. By a pressure on the actuating means 8.1, the sealing element 4, in particular in the region of the sealing lip 4.1 is deformed such that the sealing lip 4.1 lifts from the opening edge 1.2 of the container 1, whereby the internal pressure Pi can escape at this point. This allows a targeted release of the overpressure Pi possible.

In order to enable easy, one-handed operation of the actuating element 3.2 and / or the actuating means 8.1, this can be embedded in the closure element 3 via cuts 3.5 or grooves 3.5. These incisions 3.5 surround only partially the actuating element 3.2 or the actuating means 8.1, so that these elements or means are still firmly connected to the closure element 3 via a connecting web. Conveniently, the closure device 2 with the closure element 3 and the actuating means 8.1 forms a one-piece element. In the Fig. 4 can be clearly seen on the actuating means 8.1, as this is surrounded by an inverted U-shaped incision 3.5. Furthermore, above the actuating element 3.2 a horizontal incision 3.5 is provided which also separates the actuator 3.2 from the actuating means 8.1.

In the Fig. 1 is shown in the left area of the longitudinal axis 2.1, as the sealing lip 4.1 is based on the opening edge 1.2. Where, however, in the right area of the longitudinal axis 2.1 in Fig. 1 the sealing lip 4.1 is slightly raised or pressed by the actuating means 8.1. Of course, a pressure Pt on the actuating means 8.1 is required.

Due to the special sealing element 4, it is ensured that the sealing lip 4.1 presses all the more firmly and / or quantitatively more at the opening edge 1.2, the higher the internal pressure Pi in the container 1 becomes. This internal pressure can z. B. by a carbonated fluid 9 or drink 9 increase.

In the Fig. 2 can be seen from the cross section, as the strip-shaped holding means 3.3 rests behind the annular projection 1.6 when the closure device 2 is in the first position 1. Also, this is good to recognize the oval shape of the strip-shaped holding means 3.3 on the outer wall of the container neck 1.

Fig. 3 shows a plan view of the verschossenener container 1, wherein in this illustration, only one actuating means 8.1 is provided on the right side of the closure device 2. This can of course also on the left side, ie rotated by 180 °, be additionally arranged on the closure device 2, as in Fig. 4 shown.

In the Fig. 5 a further embodiment of a closure device 2 is shown, which differs from the embodiment of the FIGS. 1 to 4 characterized in that the actuating element 3.2 is mechanically connected to the actuating means 8.1. In this embodiment, the horizontal incision 3.5 missing between the actuator 3.2 and the actuating means 8.1 Fig. 4 , Consequently, a pressure Pt leads to the actuator 3.2 at the same time to actuation of the actuating means 8.1 or vice versa. In order to increase the flexibility of the actuating element 3.2, the inverted U-shaped incision 3.5 continues horizontally around the actuating means 8.1 at the lower ends. In this Embodiment, the same sealing element 4 of the FIGS. 1 to 4 be used.

In the Fig. 6 is a further closure device with a click-clack closure as closure element 3 shown in longitudinal section. In this case, the sealing element 4 does not protrude from the lower opening of the closure element 3, so that it can certainly also be said that the sealing element 4 is completely arranged or integrated in the closure element 3 or the closure device 2. This integration now has the advantage that the sealing element 4 does not touch a table or other storage surface when the closure device 2 is removed from the container 1 and stored on the shelf, no matter from which side. Thus, an unwanted wear of the sealing element 4, in particular the sealing lip 4.1 can be safely avoided. In addition, it can be ensured by the integrated sealing element 4, that the sealing lip 4.1 is not crimped or kinked when the closure device 2 is placed on the opening edge 1.2 of the container. Rather, the outer holding means 3.3 now provide for a first positioning of the closure device 2 on the opening edge 1.2. Thus, safe handling is ensured by the integrated sealing element 4.

Furthermore, in the FIG. 6 a tamper evident closure 11 is shown having a paper seal or a foil seal. Through this tamper-evident closure 11, the opening of the opening 6.2 in the securing element 6 is completely closed. If only the container 1 is to be opened by the closure device 2, then the tamper-evident closure 11 must be destroyed or removed in order to be able to exert a pressure Pk through the aperture 6.2 on the closure element 3, in particular the centerpiece 3.1. So that the tamper-evident closure 11 can be easily removed, a pull tab 11.1 can additionally be provided. It is also conceivable to equip the tamper-evident closure 11 with predetermined breaking points 11.2 in order to be able to determine an immediate destruction upon opening.

In Fig. 6 holding elements 3.3 of the closure element 3 are bent outwards and thus formed as closing means 3.4, of which in Fig. 6 one is visible and one is implied. Preferably, at least three holding means 3.3 are formed as closing means 3.4, which occupy an angle of 120 ° with each other. The fuse element 6 rests with its edge region 6.1 from the outside to the closing means 3.4, wherein the closing means 3.4 is formed as a rounding of the edge portion 6.1. If a user exerts a vertical pressure (parallel to arrow Pk) on the upper area of the securing element 6, then the edge area 6.1 acts only on the closing means 3.4, whereby the closing element 3 closes (position I of the closing device 2). At the same time, the closing means 3.4 can also be used to securely and positively connect the closure element 3 with the securing element 6. Consequently, the lower flanged edge of the edge region 6.1 could also end up higher on the closing means 3.4 or at least interact mechanically with it. In case of FIG. 6 The lower flanged edge of the edge region 6.1 serves as a lower closure or deposition surface or edge of the closure device 2. The closure device 2 is opened exclusively by a pressure Pk through the aperture 6.2 on the central region of the closure element 3, which is about the longitudinal axis 2.1 is arranged below the aperture 6.2. As a result, the holding means 3.3 jump radially outwards and release a positive connection with the container 1. Thus, a one-hand operation is easily possible both when opening and when closing.

In the FIGS. 7a and 7b a further variant of the closure device 2 according to the invention is provided, in which case a special closure element 3, 3a is provided. In this variant, the closure device 2 may be a total of two parts, wherein the closure element 3 forms the first part and the sealing element 4 optionally with a holding plate 5, the second part. It is also conceivable, the closure device 2 from the FIGS. 7a and 7b to produce one piece, in which case the holding plate 5 must be connected to the closure element 3. This can, for example, an additional attachment means, such. As screws, rivets or the like, or the holding plate 5 is welded, for example, with the closure element 3, glued or molded onto this. Basically, the closure element 3 works from the FIGS. 7a and 7b as described below.

The closure element 3, 3a is constructed substantially plate-shaped, wherein it has three individual, in particular circular segment-like pieces 3a.1, which are connected to each other via film hinges 3a.2. The three pieces 3a.1 divide that Closure element 3a substantially "stem-shaped". In order to prevent the closure element 3a from slipping off the opening 1.1, the closure element 3a has an angled outer edge region which is slightly larger than the contour of the opening edge 1.2. In this angled edge region 3a.3, the opening edge 1.2 projects into the first position I of the closure element 3a, so that a back and forth displacement of the closure element 3a on the opening 1.1 is possible with a small clearance. The closure element 3 is positively held at the opening edge 1.2 by the two diametrically opposed mounting hooks 3a.4, which serve as a holding means 3.3. It is (s. FIG. 7b ), the upper attachment hooks 3a.4 arranged on the lower star piece 3a.1 of the closure element 3a and the lower attachment hooks 3a.4 on the upper star piece 3a.1 of the closure element 3a. Now, if the upper star 3a.1 pressed to the lower, so the distance between the two mounting hooks 3a.4 increases, so that the opening edge 1.2 of the container 1 is released because the mounting hooks 3a.4 no longer the projection 1.6 of the container 1 engage behind in this intermediate position. As a result, the closure device 2 according to the invention can be lifted without problems from the opening 1.1, wherein also a one-hand operation is possible. An attachment of the closure device 2 according to the invention from the FIGS. 7a and 7b is possible by the two large-scale star pieces attachment hooks 3a.1 of the closure element 3 are compressed (see arrows), whereby the distance between the two mounting hooks 3a.4 increases and the closure device 2 are guided over the opening edge 1.2, in particular the projection 1.6 can. Subsequently, the closure element 3 can be released, with the provided film hinges 3a.2 between the individual star pieces 3a.1 pushing them apart, as a result of which the distance between the fastening hook 3a.4 is reduced again so that they grip behind the projection 1.6. As a result, the closure element 3a is attached to the container 1 in a form-fitting manner. Further, since the sealing member 4 is used with the sealing lip 4.1, the already mentioned sealing of the container 1 takes place.

In addition, two or more predetermined breaking points 11.2 can be provided as tamper-evident closure 11 in the region of the film hinges 3a.2 between the two large star pieces 3a.1 and in each case the small star piece 3a.1, which break off when the closure device 2 is actuated for the first time. By a pressure on the two large star pieces 3a.1, the small star 3a.1 is pushed out of the existing angle, which can lead to the desired breaking of the predetermined breaking points.

In the FIGS. 8, 9 and 10 a further embodiment of the closure device 2 according to the invention is shown. This is similar to the embodiments of the FIGS. 1 to 5 , wherein the holding means 3.3 are not strip-shaped but barb-shaped. Also in this closure element 3, the deformability of the lower part 2.3 of the closure device 2 is utilized, which forms the closure element 3 itself. As based on the Figures 9 can be seen, the lower part 2.3 is not circular but oval or elliptical in shape and has two arcuate, barb-like holding means 3.3, which cooperate positively with the annular projection 1.6 of the container 1. Here too, a pressure Pt causes the actuating element 3.2, whereby the arcuate holding means 3.3 radially expand and release the positive connection to the projection 1.6. As soon as the pressure Pt on the actuating element 3.2 subsides, the closure element 3 resumes its oval or elliptical shape, wherein the holding means 3.3 are brought together again radially. The advantage of the present closure device 2 from the FIGS. 8 to 10 is that this only from above, that is to be pressed by a pressure in the direction of the longitudinal axis 2.1 on the opening edge 1.2 of the container 1, whereby the barb-like holding means 3.3 expand with their tips or bevels on the annular projection 1.6 independently and independently hooked behind the projection 1.6 at a sufficient offset. Thus, the holding means 3.3 are independently designed resilient and have a chamfer. In order for the projection 1.6 to fit in the lower part 2.3, a recess 3.6 can be provided. Of course, any other positive connection between the holding means 3.3 and the counter-holding means 1.6 is conceivable.

In the Fig. 9 It is clear that the retaining means 3.3 are designed arcuate and cooperate positively over a wide range with the annular projection 1.6 of the container 1. The closure device 2 is in the FIGS. 8 and 9 shown in the closed position I.

In the Fig. 10 is a three-dimensional view of the closure device 2 is shown, wherein the already described holding means 3.3 are indicated on the inner wall of the closure element 3.

In the FIGS. 11, 12 and 13 an additional embodiment of the closure device 2 is shown, in which case a rocker-like holding means 3.3 for locking the closure device 2 is used on the container 1 is used. To illustrate the operation of the right-hand bottleneck is indicated only by dashed lines. This embodiment of the FIGS. 11 to 13 similar to the embodiments of the FIGS. 1 to 5 as well as the FIGS. 8 to 10 , In this case, the closure device 2 is designed substantially circular or spherical, since this time not a radial expansion of the holding means 3.3 is used to produce a positive connection with the container 1. Rather, a pressure on the actuator 3.2 is used to wegzuschwenken the holding means 3.3, wherein a rocker is 3.8 used on the holding means 3.3 thereto. The two provided holding means 3.3 are connected to the two actuators 3.2 via film hinges 3.7 cohesively. A pressure Pt on the actuating elements 3.2, which are again arranged in the same way as the retaining means 3.3 offset by 180 ° on the closure element 3, is used to tilt the retaining means 3.3. In this case, the triangular rocker 3.8 on the holding means 3.3 is used to tilt them on the free corner of the rocker 3.8, which comes to rest on the bottleneck 1.1 from the outside. Consequently, the upper ends of the retaining means 3.3 project behind the projection 1.6 (by moving radially away from each other) to release the positive connection in the container 1. Also in this embodiment, a valve 8 is provided for the sealing element 4, which is operable again via an actuating means 8.1. The actuating means 8.1 is mechanically connected to the actuators 3.2. Conveniently, the closure device 2, the closure element 3 and the actuating means 8.1 made of plastic, in particular as an injection molded part produced. Usually, the sealing element 4 is made of a different material, as already mentioned above.

In the Fig. 12 It can be clearly seen that the rockers 3.8 on the actuators 3.2 are designed only like a beam and do not extend beyond the full width of the holding means 3.3. In the Fig. 13 are the holding means 3.3 with the corresponding rockers 3.8 indicated in three-dimensional view. In this case, the holding means protrude 3.3 ramp in the interior of the closure device 2 and are based with their rockers 3.8 on the outer wall 1.4 of the container 1 from.

LIST OF REFERENCE NUMBERS

1

container

1.1

opening

1.2

opening edge

1.3

inner wall

1.4

outer wall

1.5

inner contour

1.6

Projection / pin / pin etc.

2

closure device

2.1

longitudinal axis

2.2

top

2.3

lower part

3

closure element

3.1

centerpiece

3.2

Actuator / area

3.3

holding means

3.4

closure means

3.5

Incision / groove

3.6

recess

3.7

film hinge

3.8

Rocker at 3.3, in particular triangular

3a

Closure element (star-shaped)

3a.1

(Star) piece

3a.2

Film hinge between 3a.1

3a.3

angled edge area

3a.4

Fixing hooks (comparable to 3.3)

4

sealing element

4.1

Sealing lip, in particular wedge-shaped

4.2

bulge

4.3

flat part

4.4

angled edge area

4.5

inner contour

4.6

first area

4.7

second area

4.8

outstanding tongue

4.9

slings

5

Retaining plate

5.1

recess

5.2

top

5.3

bottom

5.4

circular bridge

6

fuse element

6.1

border area

6.2

breakthrough

7

-

8th

Valve

8.1

Actuator / nipples

8.2

wavy end of 8.1

8.3

Incision in 4

8.4

membrane

9

Fluid / drinks od. Like.

10

Closure between 1 and 2

11

originality closure

11.1

pull tab

11.2

Predetermined breaking points

pi

Arrow for the internal pressure of 1

Pa

External pressure of 1

Pk

Arrow for the contact pressure

Pt

Arrow for actuation

I

first position (container 1 closed)

II

second position (container 1 open)

Claims (14)

1. A closure device (2) for closing and/or opening an opening (1.1) of a container (1),
   wherein the opening (1.1) of the container (1) is closed in a first position (I) of the closure device (2) and the opening (1.1) of the container (1) is open in a second position (II) of the closure device (2), and
   wherein the opening (1.1) of the container (1) has an opening edge (1.2), which comprises an inner wall (1.3) and an outer wall (1.4), and
   wherein the closure device (2) has a sealing element (4) whereby the opening (1.1) of the container (1) can be closed in a sealed manner in the first position (I), and
   wherein the closure device (2) in the first position (I) is fastened on the container (1) by a closure element (3) and on opening the container (1), can be transferred from the first position (I) into the second position (II) by means of at least one actuating element (3.2), wherein the container opening (1.1) can be opened merely by a pressure (Pt) being applied to the actuating element (3.2),
   characterised in that
   the sealing element (4) has a sealing lip (4.1) which projects at least partially into the opening (1.1) of the container (1) and comes to abut sealingly against the inner wall (1.3) of the opening edge (1.2) due to an elastic deformation.
2. The closure device (2) according to claim 1,
   characterised in that
   the seal is made by the shape and size and the material properties of the sealing element (4), in particular the sealing lip (4.1).
3. The closure device (2) according to claim 1 or 2,
   characterised in that
   the contact pressure (Pk) which is applied from the closure device (2) onto the container (1), in particular the opening edge (1.2), is substantially without effect on the sealing element (4), in particular the sealing lip (4.1).
4. The closure device (2) according to any one of the preceding claims,
   characterised in that
   the container (1) can be sealed by the closure device (2) by means of the sealing element (4) in a pressure-tight and/or fluid-tight manner, wherein in particular the closure device can be reused.
5. The closure device (2) according to any one of the preceding claims,
   characterised in that
   the sealing lip (4.1) of the sealing element (4) is only pressed onto the inner wall (1.3) by its elastic deformation, wherein in particular an internal pressure (Pi) of the container (1) additionally presses the sealing lip (4.1) onto the inner wall (1.3) if the internal pressure (Pi) is greater than an external pressure (Pa) surrounding the container (1) from outside.
6. The closure device (2) according to any one of the preceding claims,
   characterised in that
   the closure element (3) in particular cooperates positively with the container (1) by means of at least one holding means (3.3) by means of a closure (10), in particular a bayonet closure, a click-clack closure, a clasp closure, a clip closure, a loop closure and/or a sliding closure.
7. The closure device (2) according to any one of the preceding claims,
   characterised in that
   the closure device (2) is fitted with a valve (8), wherein the valve (8) is configured as a pressure relief valve or a drain valve and has an actuating means (8.1) for actuating.
8. The closure device (2) according to claim 7,
   characterised in that
   the actuating element (3.2) of the closure element (3) and the actuating means (8.1) of the valve (8) can be actuated simultaneously, wherein in particular the actuating element (3.2) is mechanically connected to the actuating means (8.1).
9. The closure device (2) according to claim 7 or 8,
   characterised in that
   the actuating element (3.2) and/or the actuating means (8.1) are configured to be button-like, wherein in particular an actuation or movement is made easier by in particular partially slit-shaped incisions (3.5) which adjoin the actuating element (3.2) and/or the actuating means (8.1).
10. The closure device (2) according to any one of the preceding claims,
    characterised in that
    the closure element(3) has at least one holding means (3.3) which cooperates positively with the container (1), in particular a projection (1.6) or a recess (1.6) on the container (1) in order to fasten the closure device (2) in the first position (I), wherein the pressure (Pt) on the actuating element (3.2) releases the form fit.
11. The closure device (2) according to any one of the preceding claims,
    characterised in that
    the pressure (Pt) on the actuating element (3.2) effects a deformation and/or a movement of the holding means (3.3).
12. A container (1), in particular for fluids (9), having a closure device (2) according to any one of the preceding claims.
13. A method for closing and opening an opening (1.1) of a container (1) by a closure device (2), wherein the opening (1.1) of the container (1) is closed in a first position (I) of the closure device (2) and
    a sealing element (4) closes the opening (1.1) of the container (1) in a sealing manner and
    a closure element (3) fastens the closure device (2) on the container (1) in particular positively in the first position (I), wherein the closure element (3) has an actuating element (3.2) for opening the container (1),
    wherein at least a pressure (Pt) must be applied to the actuating element (3.2) for opening the container (1)
    characterised in that
    the sealing element (4) has a sealing lip (4.1) which projects at least partially into the opening (1.1) of the container (1) and comes to abut sealingly against the inner wall (1.3) of the opening edge (1.2) due to an elastic deformation.
14. The method for closing and opening a container (1) according to claim 13,
    characterised in that
    a closure device (2) according to any one of the preceding claims is used to execute the method.

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