DE102015003506A1 - Lid membrane closure - Google Patents

Abstract

The invention has for its object to develop a cover membrane closure for opening and reclosing containers for non-carbonated or carbonated drinks, which is simple and inexpensive to produce with low production costs. The cover membrane closure (1) according to the invention with a lid (3) arranged at the open end of the container (2), which has an axial opening (4) with an edge (5) at the center, in which opening (4) a device for opening and reclosing this opening (4) is arranged, which consists of a cover (6) arranged above the cover (3), with a pin (7) arranged rigidly thereon in the direction of the beverage container (2) in the center of the cover cap (6). , a valve slide (8) which covers the edge (5) of the opening (4) and is disposed on the edge (5) of the opening (4) between cover (3) and valve slide 8, the valve slide (8) arranged below the cover (3) ), one in the valve slide (8) arranged vent hole (10) and one below the valve spool (8) in the vent hole (10) arranged on the pin (7), with the vent hole (10) in operative connection, d. H. this opening or closing, stepping valve piston (11) is formed, is characterized in that the valve piston (11) consists entirely of an elastomer or a thermoplastic elastomer. The invention relates to a cover membrane closure with one-handed operation for opening and reclosing beverage containers for non-carbonated or carbonated beverages.

Description

The invention relates to a cover membrane closure with one-handed operation for opening and reclosing beverage containers for non-carbonated or carbonated drinks.

In the prior art, cover membrane closures with one-hand operation for opening and reclosing beverage containers are described several times.

It is characteristic of the lid of such a lid membrane closure that it has a lid cap arranged on the lid, which can change its geometry reversibly. In the closed state, this cover cap usually has a substantially convexly curved external geometry and rests with its edge against a lid base.

By means of axial force, for example by a finger, on the center of this cover cap, this convexly curved cover cap is turned inwards, d. H. concave, dented, so that its edge relative to the lid bottom releases an annular gap for removal of the liquid from the container.

By finger pressure on the edge of the cover cap, a reverse deformation of the cover cap is effected in its initial geometry in such a cover membrane closures, in which case usually a device is actuated, which closes the liquid container again.

Such a solution for one-handed operation of a beverage can is in the in the DE 10 2005 015 505 A1 presented.

In this solution, a closure and opening device with a multi-armed support spring structure is arranged below the cover cap, which is firmly connected to the cover cap and biases it in their deformations.

A disadvantage of this solution is that due to lack of axial guidance in one-handed operation a secure closing is not guaranteed.

In addition, this solution requires a very high production cost, since in this solution in the manufacturing process strained components must be made very complex and expensive.

Nevertheless, this solution is unsuitable for beverage containers with CO ₂ internal pressure, since the lid can be opened by the internal pressure alone.

To avoid these disadvantages was in the DE 10 2007 035 728 A1 then another closure and opening device presented, which should improve the seal, and are arranged with elastic locking means on both the cover cap and on the cooperating with this base part of the closing and opening device, which cause the cover cap and the base part connected to each other and subsequently decoupled.

In this solution, the lid cap has axially and radially aligned sealing lips, which rest in the closed state of the closing and opening device sealingly on the base part.

Also, this solution is unsuitable for beverage containers with CO ₂ -Innendruck, ie carbonated liquids such as mineral waters, beer or the like, because due to the large lid surface to open a very large volume must be compressed, ie a very high opening force is required.

Also in this solution is missing an axial guidance, so that a reliable and easy closing by means of one-hand operation can not be guaranteed.

In addition, the builds in the DE 10 2007 035 728 A1 above-described closing and opening device axially large, and inevitably increases the length of the respective beverage container.

From the DE 10 2008 056 301 A1 a further device for opening and closing a beverage container is known in which a gas-tightness ensuring protective film is disposed below the actual closing and opening device. A separate arranged on the lid separator ensures the "first use" of the beverage container that this protective film is destroyed and so the drink is released for removal.

This in the 10 2008 056 301 A1 presented closing and opening device is only for beverage containers with carbonated beverages with low pressures of 1 bar to 2 bar, ie with pressures of 1 × 10 ⁵ Pa to 2 × 10 ⁵ Pa, suitable. However, closing and opening devices used on beverage containers should withstand internal pressures of 3 × 10 ⁵ to 8 × 10 ⁵ Pa, which are standard in the beverage industry before the "first use" due to the "outgassing" of the respective drinks.

In addition, this solution with foil is very expensive, and can after resealing ensure no gas tightness in case of overpressure in the beverage container.

In the DE 10 2009 025 316 A1 Now, a further device for opening and closing a beverage container is described above. This device has a cup-shaped valve slide arranged centrally in the lid with a bistable cover cap arranged on the latter which rests in the "closed" state, a first stable operating state, on the lid base and clamps the valve slide from below against the lid, ie the axial opening in the lid the valve slide is arranged gas-tight and liquid-tight closes.

Due to the action of an axial force acting centrally on the cover cap, the cover cap is deformed in a second stable actuation state, whereby an annular gap-shaped opening is created between the cover and the cover cap which allows the removal of the beverage.

The closing of the beverage container should be effected by the action of an axial force on the edge region of the lid cap. In this case, a reverse deformation of the bistable cover cap to clamp the valve spool back down against the lid.

Even with this solution, a reliable one-hand operation can not be guaranteed because a centering of the valve spool in the lid can not be guaranteed.

This solution also has the disadvantage that the valve spool applies itself during the pouring of itself centrally or off-center against its sealing surface on the lid and so unintentionally hinders the emptying of the container.

In addition, this solution has the disadvantage that, due to the large lid surface, a very large volume must be compressed to open, d. H. a very high opening force is required, and that even after resealing no gas tightness can be guaranteed at overpressure in the beverage container.

Analog is in this context also from the GB 2 276 153 A To judge known device for opening and closing a beverage container, which is difficult to open in case of overpressure in the beverage container.

In order to reduce the force required for the first time opening of a container under pressure in the generic cover membrane closures, was in the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 suggested that at one of the DE 10 2009 025 316 A1 known, associated with the cover valve spool to arrange a pressure relief valve, which as well as the valve spool, but "temporally" before this, is actuated by the action of an axial force on the cover in the opening direction, whereby the pressure can escape from the container. By means of the pressure relief valve can be so degraded in the opening of the beverage container by applying a small operating force of the pressure in the beverage container, and then be opened by further exerting an axial actuating force on the lid of the valve slide.

The device after the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 has on the underside of the bistable cover an axially aligned pin which protrudes through a centrally located in the valve slide degassing, and is mounted axially displaceable in this with radial play. On the underside of the valve slide, an elastic sealing cap is arranged in the region of the central degassing opening, which is formed below the valve slide as elastic skin and is secured to the inner edge of the valve slide. In this skin of the elastic sealing cap at least one hole is arranged, so that the elastic sealing cap in the closed state of the pressure relief valve on the underside of the valve slide sealingly abuts, for "degassing" arranged on the bistable lid, axially aligned pin can be lowered so far axially in that the gas overpressure present in the container, owing to the elastic sealing cap lifted off the underside of the valve slide by the pin, is arranged via the hole (s) located in the skin of the elastic sealing cap and the space between the degassing opening and that axially guided in the degassing opening Pen, from the interior of the container can escape into the environment.

The in the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 above-described solution ensures in the "new state" that can build up before the first opening in the beverage container, an overpressure of up to 8 × 10 ⁵ Pa. However, the production of this solution is very expensive and because of the pressure relief valve used, and to be attached to the inner edge of the valve spool elastic skin very intensive manufacturing.

In addition, when punching the holes to be arranged in the elastic skin small notches / cracks can form, which then under the continuous load of the closing bias, especially during prolonged storage of beverage containers and a consequent embrittlement of the prestressed elastic skin, lead to stress cracks in the elastic skin of the sealing cap.

In addition, the relaxation of the elastic skin over the storage time also leads to a reduction / reduction of the sealing bias, and thus to the degassing of the container, so that means of this in the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 above-described solution no reliable long-term sealing of under internal pressure of up to 8 × 10 ⁵ Pa standing beverage containers can be guaranteed.

Therefore, then in the DE 10 2011 101 109 A1 a closure and opening device for a liquid receiving container, in which, arranged on the arranged on the underside of the bistable cover cap, axially aligned pin in the centrally arranged in the valve spool vent a valve piston is arranged as a pressure relief valve.

The arranged also in this device to the bistable cap lid pin and now does not perform an elastic sealing cap, but a made of a hard plastic valve piston under the action of a centrally acting on the lid cap first axial force to vent the container under pressure is to effect.

After venting, by further maintaining or increasing the opening force acting centrally on the lid cap, the lid cap is transferred from its first stable state generally used in lid membrane closures with a convex top cap top to a second state with a concave top cap top. It is, as in the solution after the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 also the valve spool lowered and allows an extraction of the liquid from the container via an annular gap between the edge of the lid cap and the lid bottom.

By finger pressure on the edge of the cover cap a return deformation of the cover cap is effected in its initial geometry, wherein the arranged on the axially aligned, arranged on the underside of the bistable cover cap, pin mounted valve piston is clamped in the valve slide arranged in the vent and thereby, as well in the solution after the DE 10 2009 049 294 A1 or the DE 20 2010 002 240 U1 Also, the valve spool braced against the lid from the inside, and thus closes the liquid container again.

In this solution, the valve spool itself consists of a hard plastic, to which in the sealing regions of the valve spool against the cover and the valve piston, d. H. once on the top of the valve spool and once on the bottom of the valve spool, as a second component thermoplastic elastomers are sprayed as a seal for sealing.

The production of such a seal geometry is very complex, since both from below, and from above a sealing soft component must be applied, which is very expensive to produce, and either with a very complicated separate connection or simple connection with long flow paths and the Risk of incidence of the seal geometry is connected at the flow path end, so that the valve components are very expensive due to the design in the production.

Another very significant disadvantage of this solution, however, is that by means of this solution no reliable long-term sealing under standing under internal pressure of up to 8 × 10 ⁵ Pa standing beverage containers can be ensured because between the arranged on the underside of the bistable cap lid pin and the This pin receiving bore in the valve piston leak at an internal pressure of up to 8 × 10 ⁵ Pa in the container leaks.

To avoid these disadvantages was in the DE 10 2012 016 902 B3 proposed to be arranged on the existing of a hard plastic valve piston to the valve slide out a sealing material which bears in the closed state of the valve piston sealingly axially on the radial sealing surface of the valve spool and is lifted in the open state together with the valve piston of this sealing surface.

Also, this design of the valve piston is in the production, since as a second component thermoplastic elastomers must be injection molded as a sealing ring, due to the design expensive, and also the risk of incidence of the seal geometry is given at the flow path end.

Due to the resulting sealing gaps, the function of the seal can be severely impaired.

In addition, the arrangement of an annular seal which is formed as an annular sealing strip, and consists of a silicone material, a rubber material or a closed-pore Polyhethanschanschaum, in the contact area of the valve spool, the flat lid manufacturing technology consuming and certainly not so sure that this is not for longer storage times stick to the valve slide and could be torn off the lid.

In paragraph [38] of the DE 10 20012 016 902 B3 It should be noted that it is advantageous if the diameter of the axial bore in the existing of a hard plastic valve piston and the outer diameter of the also made of a hard plastic pin are sized equal to thereby occurring leakage between the bore and the pin to reduce. Nevertheless, it comes at an internal pressure of up to 8 × 10 ⁵ Pa in the container of this solution to permanent leaks.

In summary, therefore, the solution to the DE 10 20012 016 902 B3 be found that this solution is associated with high production costs, and because of inevitably occurring leaks under no circumstances a reliable long-term sealing of under an internal pressure of up to 8 × 10 ⁵ Pa standing beverage containers guaranteed.

It is therefore an object of the present invention to develop a cover membrane closure for opening and reclosing containers for non-carbonated or carbonated drinks, which is simple and inexpensive to produce with low production costs, and has a high stability as well as a secure centering, so this easy and reliable with only one hand to operate, and even with longer storage times a safe, leak-free and pressure loss-free, reliable long-term sealing of beverage containers, even at storage temperatures of up to 50 ° C and a container internal pressure of up to 8 × 10 ⁵ Pa guaranteed.

According to the invention this object is achieved by cover membrane closure and a method for manufacturing and assembly of a cover membrane closure according to the features of the independent device claim and the features of the independent method claim of the invention.

Advantageous embodiments, details and features of the invention will become apparent from the dependent claims and the following description of the inventive solution in conjunction with five representations of the inventive solution.

These representations show in:

1 : the lid membrane closure according to the invention 1 with screw thread 26 in an exploded view in side view in section;

2 : the lid membrane closure according to the invention 1 with screw thread 26 in the final assembly state in the working position "closed" in the side view in section;

3 : the lid membrane closure according to the invention 1 with screw thread 26 in the final assembly state in the working position "vent" in the side view in section;

4 : the lid membrane closure according to the invention 1 with screw thread 26 in the final assembly state in the working position for removal "open" in the side view in section;

5 : the lid membrane closure according to the invention 1 with ring spring 27 before final assembly on the container 2 in the unfastened state in the working position "closed" in the side view in section.

The in the 1 to 5 illustrated lid membrane closure 1 for opening and reclosing containers 2 with one at the open end of the container 2 arranged lid 3 , which has an axial opening in the middle 4 with a border 5 having, wherein in this opening 4 a device for opening and reclosing this opening 4 is arranged, and this device from one above the lid 3 arranged their geometry reversible under the action of an external force, from convex to concave changing cap 6 , with one in the center of the lid cap 6 in the direction of the container 2 rigidly on the lid cap 6 arranged pin 7 , one below the lid 3 arranged the edge 5 the opening 4 covering, valve spool 8th and one on the edge 5 the opening 4 between lids 3 and valve spool 8th arranged seal 9 , one in the middle in the valve slide 8th arranged vent hole 10 and one below the valve spool 8th in the area of the vent hole 10 at the pin 7 arranged, with the vent hole 10 in operative connection, ie this opening or closing, passing valve piston 11 is formed, characterized in that the valve piston 11 completely made of an elastomer or a thermoplastic elastomer.

This ensures a simple and cost-effective production of a component with high sealing function with little effort.

Essential to the invention is that the valve piston 11 , the valve spool 8th facing, a sealing cone 12 one the lower part of the sealing cone 12 enclosing ring groove 13 and one the annular groove 13 enclosing sealing ring 14 is arranged, and on the valve piston 11 the valve spool 8th turned away a floor surface 15 is arranged, and also axially in the valve piston 11 a Pin-receiving bore 16 is arranged, wherein the diameter of the pin receiving bore 16 smaller than the diameter of the pin 7 is.

In the present embodiment, the outer diameter of the pin 7 2.00 mm and the pin receiving bore 16 in the valve spool 8th has a bore diameter of 1.50 mm.

The valve spool 8th Therefore, with a significant excess safe and reliable sealed on the pen 7 so that a safe, leak-free and pressure loss-free, reliable long-term sealing of beverage containers, even at storage temperatures of up to 50 ° C and an internal container pressure of up to 8 × 10 ⁵ Pa, is guaranteed.

It is also characteristic that the valve spool 8th below the vent hole 10 one the vent hole 10 annular surrounding sealing bead 17 is arranged, in the sealing state of the device with the adjacent components of the valve piston 11 , the sealing cone 12 , in the lower area this enclosing ring groove 13 and the ring groove 13 enclosing sealing ring 14 , sealingly operatively connected, these components of the valve piston 11 in the ventilation state of the sealing bead 17 be lifted off.

This arrangement according to the invention causes, with high stability, a safe centering, so that it can be operated easily and reliably with only one hand.

It is also essential that below the bottom surface 15 of the valve piston 11 a bottom plate 19 is arranged.

It is essential that at the bottom of the pen 7 one or more fasteners / e 18 is / are, the / with one / more, at the below the bottom surface 15 of the valve piston 11 arranged base plate 19 , associated with arranged fastening elements / n 18 come into operative connection.

It is advantageous if the fasteners 18 are designed as latching connection, wherein the pin 7 a jetty 28 , a detent groove 29 a detent 30 and this adjacent a detent bridge 30 stabilizing ratchet 31 are arranged, and the locking groove 29 in the final assembly state in one in the bottom plate 19 centrally arranged locking cylinder bore 32 is positioned so that the wall thickness of the bottom plate 19 in the area of the locking cylinder bore 32 between the investment jetty 28 and the detent 30 is recorded.

This design ensures a simple, safe and cost-effective production and at the same time allows a simple, safe and cost-effective installation of the individual components of the cover membrane closure 1 on the lid 3 , as well as a reliable positioning of the valve piston 11 and the bottom plate 19 at the pin 7 simply by joining, whereby the joining force required for the joint connection is centered on the cover cap 6 ie in the area of the pen 7 , in the direction of the pen 7 against the bottom plate 19 is introduced.

It is also essential that the bottom plate 19 in the area of these fasteners 18 is formed gas and liquid tight.

This ensures a safe, leak-free and pressure loss-free, reliable long-term sealing of beverage containers, even at storage temperatures of up to 50 ° C and a container internal pressure of up to 8 × 10 ⁵ Pa, even with longer storage times.

It is advantageous in this context, if in the field of locking cylinder bore 32 rigidly on the bottom plate 19 a the dome 31 of the pen 7 in the final assembly state gas-tight and liquid-tight enclosing Dichtkuppe 33 is arranged.

This will provide a reliable seal of the bottom plate 19 ensured in the area of the joint connection.

Essential to the invention is also when the lid 3 or on the container 2 in the area of the edge 5 the opening 4 a seal 9 is arranged, with one or more guide grooves 20 is provided, with the seal 9 by means of these guide grooves 20 positive and / or non-positive on the edge 5 the opening 4 is positioned in their position.

It is advantageous if at, in the 1 to 4 presented, from the container 2 again releasable embodiment of the lid 3 with one on the lid 3 arranged screw thread 26 between the container 2 and the lid 3 in the area of the edge 5 the opening 4 a seal 9 is arranged, at the one guide groove 20 is arranged over which the seal 9 on the edge 5 the opening 4 positive and / or non-positive when screwing the lid 3 between the container 2 and the lid 3 is positioned in position, with the seal 9 so at the same time the container seal against the lid 3 serves.

The seal 9 can also with the / the guide grooves 20 be provided adjacent arranged sealing lips.

In the embodiment according to the 1 to 4 becomes the lid 3 and the containers 2 through a screw thread 26 positively or non-positively connected.

This is the orientation of the lid 3 and containers 2 is basically due to the screw thread 26 guaranteed.

The seal used in this embodiment 9 adheres to the lid 3 and has three raised areas, the inner seal 9 and the outer guide groove 20 with the sealing lips arranged adjacent thereto.

These sealing lips ensure that the container is in the guide groove 20 is positioned to press in the closed state laterally to the container wall and thereby the lid 3 to seal it securely.

Between the two sealing lips is the sealing surface of the guide groove 2 ,

With the help of, caused by the thread pressure force of the container edge is in the guide groove 20 pressed and sealed there securely.

In cooperation with the adjacently arranged sealing lips of the container edge is reliably sealed.

Another advantage of the solution presented here is that the seal made of soft components is in one piece, ie next to the seal 9 for the valve spool at the same time also the guide grooves 20 for the container edge, whereby the manufacturing and assembly costs minimized and also the reliability is increased.

In the, in the 5 shown, with the container 2 rigidly connected embodiment of the lid 3 however, is in the area of the edge 5 the opening 4 Valve slide side on the lid 3 a sealing ring receiving ring bridge 35 arranged on which the with a guide groove 20 provided seal 9 by means of this guide groove 20 positive and / or non-positive on the edge 5 the opening 4 on the sealing ring receiving ring bridge 35 is exactly positioned in their position.

The sealing ring receiving web 35 causes the seal 9 better on the lid 3 can be positioned so that even with a slight radial force under internal pressure (or caused by the tension or bias of the elements), the soft or sealing component not from the lid 3 is sheared off, but always reliably sealingly rests.

The guide groove 20 in the seal 9 causes in their interaction with the sealing ring receiving web 35 the centering itself.

The inventive method for manufacturing and assembly of a cover membrane closure 1 , is characterized by the fact that at the bottom of the pen 7 arranged fasteners 18 with the, below the floor area 15 of the valve piston 11 arranged base plate 19 , associated with arranged fastening elements / n 18 be added under bias, so that in the final assembly state of the cover membrane closure 1 in the working position "closed" the below the vent hole 10 in the valve spool 8th arranged valve piston 11 not only under rubber-elastic pretension in the vent hole 10 sits, but the valve spool 8th from below sealing against the edge 5 the opening 4 arranged seal 9 pressed.

This bias of the cover membrane closure 1 ensures that the sealing cone 12 , the ring groove 13 and the sealing ring 14 of the valve piston 11 in the working position "closed" sealing against the sealing bead 17 of the valve spool 8th be pressed.

This bias also ensures at the same time that the bottom surface 15 of the valve piston 11 sealing against the bottom plate 19 is pressed, whereby an additional sealing surface is arranged, which provides an additional seal for sealing between the valve piston 11 and pen 7 causes.

The between the valve piston 11 and the bottom plate 19 located sealing surfaces are braced against each other so that the axial tension of the lid cap 6 with the one with a seal 33 , provided floor plate 19 Ensures a reliable gas and liquid tight container seal.

In the context, it is particularly advantageous if the bottom plate 19 to the valve piston 11 adhesive, for example by 2K injection molding, is produced.

Due to the bias according to the invention can in drinks with low internal pressure but also in carbonated drinks, even at storage temperatures of up to 50 ° C and a container internal pressure of up to 8 × 10 ⁵ Pa, from the beginning of a reliable long-term sealing of beverage containers or after the first opening a safe, leakage and pressure loss storage are guaranteed.

Due to the internal pressure and the force acting on the bottom plate 19 of the valve piston 11 and the force on the bottom of the valve spool 8th In the case of carbonated beverages or beverages with internal pressure above the hydrostatic pressure, the sealing effect according to the invention is even enhanced.

It is also essential to the invention that the pen 7 , between the lid cap 6 and in the final assembly state at the pin 7 arranged valve piston 11 , a driver 21 is arranged.

This driver 21 ensures that in the pre-venting, as in 3 shown in case of poor or absent adhesion between valve piston 11 and bottom plate 19 , the valve piston 11 in each case from the driver 21 in the direction of the container 2 and away from the sealing bead 17 the valve spool 8th to be led.

Characteristic is still that lid cap side on the edge 5 the opening 4 on the lid 3 Latch hook lands 22 , and this container side of the lid cap 6 assigned locking lugs webs 23 are arranged so that at convex surface of the lid cap 6 , this the lid cap 6 on the lid 3 centered and with concave surface of the lid cap 6 the lid cap 6 fixed in position on the lid 3 position, ie clamp.

It is also essential that the valve spool 8th to the vent hole 10 is bell-shaped, wherein in this bell-shaped region on the underside of the valve spool 8th to a valve piston guide tolerance of the vent hole 10 spaced, radially extending stiffening ribs 24 are arranged.

This will be the valve spool 8th stiffened, which counteracts especially at high load excessive deformation, and in conjunction with a better power transmission and a higher tightness guaranteed.

It is advantageous in this context, if lid cap side on the valve spool 8th in the area of the vent hole 10 distance lugs 34 are arranged.

Through these spacer knobs 34 is "opened" when pouring the beverage, in the working position, as in 4 shown closing the opening 4 through the valve spool 8th , prevents it from pouring against the seal 9 is pressed, thus obstructing the flow.

To prevent this effect the distance studs 34 that when pouring at the bottom of the lid cap 6 abut, so that a defined gap between seal 9 and the top of the valve spool 8th adjusts, which ensures optimal flow.

It is also characteristic that on the circumference of the lid cap 6 , and on the lid 3 opposite surface of a stabilizing ring 25 is formed.

As a result, the edge is stabilized, so that when closing the lid membrane closure 1 required force better in the entire surface of the lid cap 6 be initiated and a rebound of the cover 6 from concave to convex surface is easier.

According to the invention in the container 2 again releasable embodiment of the lid 3 , the "screw-on version" that on the lid 3 a screw thread 26 is arranged with this one with a container 2 arranged, associated screw thread 26 releasably enters into operative connection.

Essential to the invention is also that the lid 3 a ring spring 27 is arranged over which the lid 3 on one of the containers 2 associated arranged fastening web / fastening groove rigidly arranged, that is not detachable, z. B. welded (by means of a weld groove 40 in the container 2 , as in 5 shown) or glued, can be.

This is a cost-effective production with high density and low height of the lid 3 guaranteed.

In that, in the 1 to 4 illustrated, with the embodiment of the container 2 again releasable embodiment of the lid 3 , are on the valve spool 8th centering knobs 36 arranged, which the valve slide 8th lead in the round neck of the bottle.

Essential to the invention is therefore also that in the container 2 again releasable embodiment of the lid 3 , at the largest circumference of the valve spool 8th at least three evenly distributed over the circumference arranged Zentriernoppen 36 are arranged.

These centering nubs 36 cause a centering of the valve spool 8th in the container 2 , causing the valve spool 8th is positioned exactly in its radial position, so that even at high internal pressures of the valve slide 8th in the container neck of the container 2 can not be moved, which always ensures high reliability.

The between the Zentriernoppen 34 arranged free spaces ensure in the open Condition an optimal "flow" between the container 2 and the valve spool 8th ,

In the in the 5 illustrated embodiment, with the container 2 rigidly connected embodiment of the lid 3 , the "welding version" are inventively container side of the lid 3 , the circumference of the valve spool 8th spaced by a valve slide guide tolerance, radially extending guide ribs 37 arranged.

These guide ribs 37 on the one hand serve as stiffening ribs and prevent deflection of the lid 3 and are interrupted to allow optimal flow on the other hand.

By means of this solution is a round valve spool 8th exactly centered / positioned in its radial position, and thus can be easily axially displaced, with the spaces between the guide ribs 37 ensure a sufficient "flow" in the opened state.

It is also advantageous that the container 2 or on the lid 3 arranged drinking rim 38 the lid cap 6 clearly dominated.

This will ensure that even if the container 2 with the lid 3 the lid is turned upside down 6 not mechanically loaded / operated and thus cover membrane closure 1 remains closed, also causes the consumer with his lips when drinking a sufficient distance from the concave cap 6 comply.

In addition, at the drinking rim 38 In addition, a good seal of authenticity or a tear-open lid are attached.

It is also essential that on the container 2 or on the lid 3 arranged drinking rim 38 a tear-open lid 39 is arranged.

This avoids unintentional opening during transport prior to first use, while at the same time documenting the "unopened" state.

By means of the solution according to the invention, it has been possible to provide a lid membrane closure for opening and reclosing containers for non-carbonated or carbonated drinks, which is simple and inexpensive to produce with low production costs, and has high stability with safe centering, so that it is easy and reliable with only One hand to operate, and even with longer storage times a safe, leak-free and pressure loss-free, reliable long-term sealing of beverage containers, even at storage temperatures of up to 50 ° C and a container internal pressure of up to 8 × 10 ⁵ Pa guaranteed.

LIST OF REFERENCE NUMBERS

1

Lid membrane closure

2

container

3

cover

4

opening

5

edge

6

top cap

7

pen

8th

valve slide

9

poetry

10

vent hole

11

plunger

12

sealing cone

13

ring groove

14

seal

15

floor area

16

Pin-receiving bore

17

sealing bead

18

fastener

19

baseplate

20

guide

21

takeaway

22

Rest hook web

23

Rest nose bridge

24

stiffening rib

25

stabilizing ring

26

screw thread

27

Ringfeder

28

mooring facilities

29

locking groove

30

latching web

31

Rest summit

32

Rest cylinder bore

33

sealing tip

34

distance lugs

35

Sealing ring receiving annular web

36

centering knobs

37

guide ribs

38

drinking rim

39

The easy open

40

welding groove

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102005015505 A1 [0006]
• DE 102007035728 A1 [0011, 0015]
• DE 102008056301 A1 [0016, 0017]
• DE 102009025316 A1 [0019, 0026]
• GB 2276153 A [0025]
• DE 102009049294 A1 [0026, 0027, 0028, 0030, 0033, 0034]
• DE 202010002240 U1 [0026, 0027, 0028, 0030, 0033, 0034]
• DE 102011101109 A1 [0031]
• DE 102012016902 B3 [0038]
• DE 1020012016902 B3 [0042, 0043]

Claims (18)

Cover membrane closure ( 1 ) for opening and reclosing containers ( 2 ), with one at the open end of the container ( 2 ) arranged lid ( 3 ), which has an axial opening ( 4 ) with a border ( 5 ), wherein in this opening ( 4 ) a device for opening and reclosing this opening ( 4 ) is arranged, and this device from one above the lid ( 3 ), their geometry under the action of an external force reversible, from convex to concave changing cap ( 6 ), with one in the center of the lid cap ( 6 ) in the direction of the container ( 2 ) rigidly on the cover cap ( 6 ) arranged pin ( 7 ), one below the lid ( 3 ), the edge ( 5 ) of the opening ( 4 ) overlapping valve spool ( 8th ) and one on the edge ( 5 ) of the opening ( 4 ) between covers ( 3 ) and valve slide ( 8th ) arranged seal ( 9 ), one in the middle in the valve slide ( 8th ) arranged vent hole ( 10 ) and one below the valve spool ( 8th ) in the area of the vent hole ( 10 ) on the pen ( 7 ), with the vent hole ( 10 ) in operative connection, ie this opening or closing, passing valve piston ( 11 ), characterized in that - the valve piston ( 11 ) consists entirely of an elastomer or a thermoplastic elastomer, and - that on the valve piston ( 11 ), the valve spool ( 8th ), a sealing cone ( 12 ) one the lower portion of the sealing cone ( 12 ) enclosing annular groove ( 13 ) and an annular groove ( 13 ) enclosing sealing ring ( 14 ) is arranged, and on the valve piston ( 11 ) the valve spool ( 8th ) facing away from a floor surface ( 15 ) is arranged, and also axially in the valve piston ( 11 ) a pin receiving bore ( 16 ), wherein the diameter of the pin receiving bore ( 16 ) smaller than the diameter of the pin ( 7 ), and - that at the valve spool ( 8th ) below the vent hole ( 10 ) one the vent hole ( 10 ) annular sealing bead ( 17 ) is arranged in the sealing state of the device with the adjacent components of the valve piston ( 11 ), the sealing cone ( 12 ), which at the bottom of this enclosing annular groove ( 13 ) and the annular groove ( 13 ) enclosing sealing ring ( 14 ), sealingly operatively connected, these components of the valve piston ( 11 ) in the venting state of the sealing bead ( 17 ), and - that below the floor surface ( 15 ) of the valve piston ( 11 ) a bottom plate ( 19 ), and - that at the lower end of the pin ( 7 ) one or more fasteners ( 18 ) is / are arranged, the / with one / more, at the below the bottom surface ( 15 ) of the valve piston ( 11 ) arranged floor plate ( 19 ), associated with arranged fasteners / n ( 18 ), and - that the bottom plate ( 19 ) in the region of these fastening elements ( 18 ) is formed gas- and liquid-tight, and - that on the lid ( 3 ) or on the container ( 2 ) in the region of the edge ( 5 ) of the opening ( 4 ) a seal ( 9 ) arranged with one or more guide grooves ( 20 ), the gasket ( 9 ) by means of these guide grooves ( 20 ) positively and / or non-positively on the edge ( 5 ) of the opening ( 4 ) is positioned in position. Method for producing and mounting a cover membrane closure ( 1 ) according to claim 1, characterized in that the at the lower end of the pin ( 7 ) arranged fastener / e ( 18 ) with the, below the floor surface ( 15 ) of the valve piston ( 11 ) arranged floor plate ( 19 ), associated with arranged fasteners / n ( 18 ) are biased, so that in the final assembly state of the cover membrane closure ( 1 ) in the working position "closed" the below the vent hole ( 10 ) in the valve slide ( 8th ) arranged valve piston ( 11 ) not only under rubber elastic bias in the vent hole ( 10 ), but at the same time the valve slide ( 8th ) from below sealing against the edge ( 5 ) of the opening ( 4 ) arranged seal ( 9 ) presses. Cover membrane closure ( 1 ) according to claim 1, characterized in that on the pin ( 7 ), between the lid cap ( 6 ) and in the final assembly state on the pen ( 7 ) arranged valve piston ( 11 ), a driver ( 21 ) is arranged. Cover membrane closure ( 1 ) according to claim 1 and / or claim 3, characterized in that cover cap side at the edge ( 5 ) of the opening ( 4 ) on the lid ( 3 ) Latching hook webs ( 22 ), and this container side of the lid cap ( 6 ) associated latching ridges ( 23 ) are arranged so that at convex surface of the lid cap ( 6 ), this the lid cap ( 6 ) on the lid ( 3 ) centered and with concave surface of the lid cap ( 6 ) the lid cap ( 6 ) fixed in position on the lid ( 3 ), ie clamp. Cover membrane closure ( 1 ) according to one or more of claims 1, 3, 4, characterized in that the valve spool ( 8th ) to the vent hole ( 10 ) is bell-shaped, wherein in this bell-shaped area at the bottom of the valve spool ( 8th ), a valve piston guide tolerance of the vent hole ( 10 ) spaced, radially extending stiffening ribs ( 24 ) are arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 5, characterized in that on the circumference of the lid cap ( 6 ), and on the lid ( 3 ) facing away from a stabilizing ring ( 25 ) is formed. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 6, characterized in that fastening elements ( 18 ) are formed as latching connection, wherein the pin ( 7 ) a landing stage ( 28 ), a locking groove ( 29 ) a latching bridge ( 30 ) and this adjacent a locking web ( 30 ) stabilizing ratchet ( 31 ) are arranged, and the locking groove ( 29 ) in the final assembly state in a in the bottom plate ( 19 ) centrally arranged locking cylinder bore ( 32 ) is positioned so that the wall thickness of the bottom plate ( 19 ) in the region of the latching cylinder bore ( 32 ) between the contact bridge ( 28 ) and the latching web ( 30 ) is recorded. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 7, characterized in that in the region of the locking cylinder bore ( 32 ) rigidly on the bottom plate ( 19 ) a the Rastkuppe ( 31 ) of the pencil ( 7 ) in the final assembly state gas- and liquid-tight enclosing Dichtkuppe ( 33 ) is arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 8, characterized in that cover cap side on the valve spool ( 8th ) in the area of the vent hole ( 10 ) Distance Knobs ( 34 ) are arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 9, characterized in that on the lid ( 3 ) a screw thread ( 26 ) is arranged, with which this one with the container ( 2 ), associated screw thread ( 26 ) releasably enters into operative connection. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 10, characterized in that the container ( 2 ) detachable embodiment of the lid ( 3 ) with one on the lid ( 3 ) arranged screw thread ( 26 ) between the container ( 2 ) and the lid ( 3 ) in the region of the edge ( 5 ) of the opening ( 4 ) a seal ( 9 ) is arranged, on which a guide groove ( 20 ) is arranged, over which the seal ( 9 ) on the edge ( 5 ) of the opening ( 4 ) positively and / or non-positively when screwing the lid ( 3 ) between the container ( 2 ) and the lid ( 3 ) is positioned in its position, the seal ( 9 ) at the same time the container seal against the lid ( 3 ) serves. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 11, characterized in that the largest circumference of the valve slide ( 8th ) at least three evenly distributed over the circumference arranged Zentriernoppen ( 36 ) are arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 9, characterized in that on the lid ( 3 ) an annular spring ( 27 ) is arranged, over which the lid ( 3 ) on one of the containers ( 2 Assigned arranged mounting web / mounting groove rigidly arranged, that is not detachable, z. B. welded or glued, can be. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 9, 13, characterized in that in the container ( 2 ) rigidly connected embodiment of the lid ( 3 ) in the region of the edge ( 5 ) of the opening ( 4 ) Valve slide side on the lid ( 3 ) a sealing ring receiving bridge ( 35 ) is arranged, on which the with a guide groove ( 20 ) provided seal ( 9 ) by means of this guide groove ( 20 ) positively and / or non-positively on the edge ( 5 ) of the opening ( 4 ) is exactly positioned in their position. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 9, 13, 14, characterized in that the container side on the lid ( 3 ), the circumference of the valve spool ( 8th ) spaced by a valve slide guide tolerance, radially extending guide ribs ( 37 ) are arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 15, characterized in that the container ( 2 ) or on the lid ( 3 ) arranged drinking rim ( 38 ) the lid cap ( 6 ) clearly surpassed. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 16, characterized in that on the container ( 2 ) or on the lid ( 3 ) arranged drinking rim ( 38 ) a tear-open lid ( 39 ) is arranged. Cover membrane closure ( 1 ) according to one or more of claims 1, 3 to 17, characterized in that the bottom plate ( 19 ) to the valve piston ( 11 ), for example by 2K injection molding.

Images