EP2818153A1 - Beverage container with a drinking vessel and a drink attachment - Google Patents

Abstract

Drinking container with a drinking vessel, a drinking cap and a screw ring, wherein the drinking vessel has an interior space, a circular vessel opening, an opening edge surrounding the vessel opening and an external thread next to the vessel opening, - The drinking cap a bottom wall, a circumferential around the bottom wall ring flange to rest on the opening edge of the drinking vessel, a protruding from the bottom wall to the outside drinking element and a shut-off for shutting off and opening a passage from the interior to the outside of the mouthpiece, which can be opened for drinking and otherwise closable is, has, a ventilation channel is present in the underside of the annular flange or in the upper side of the opening edge, which extends from an inner channel opening which is radially further inward and open towards the interior of the drinking vessel up to a radially further outer channel opening which is open to the environment; between these two channel openings at least 0.75 times around the center of the vessel opening, has a cross-sectional area in the range of 0.02 to 0.08 mm 2 and formed in a rigid material having a modulus of elasticity of at least 0.2 kN / mm 2 is and - The annular flange is fixed by means of the screw ring in liquid-tight contact with the opening edge.

Description

The invention relates to a drinking container with a drinking vessel and a drinking cap. The drinking vessel is preferably a drinking bottle or a drinking cup and the drinking cap is preferably a drinking spout, a push-pull drinking cap, a drinking straw drinking cap or a drinking teat.

Drinking attachments have a bottom wall, an annular flange surrounding the bottom wall for attachment to the opening edge of the drinking vessel by means of a fastening ring and a mouthpiece projecting outwardly from the bottom wall with at least one drinking opening on the outside. The drinking opening is connected via a passage with the inside of the mouthpiece. By sucking on the mouthpiece while drinking a negative pressure is created in the drinking vessel, which must be reduced. For this purpose, drinking tips on ventilation valves.

When the drinking cap is designed as a teat, a sucker is connected to the ring flange via a suction grommet. The teat is made in one piece from an elastomeric material. The drinking opening is a hole or a slot or a plurality of holes or slots in the upper end of the suction part. For ventilation, for example, a slit valve on the circumference of the Saugertülle is present, which opens at a negative pressure in the bottle. Radial grooves are also known on the underside of the annular flange, through which air can flow through between the annular flange and the opening edge of the drinking vessel.

Also, seals of teat cups of drinking bottles are known in which slightly different angles of attack of the sealing surfaces with slight screwing do not lead to a complete seal. In this Abdichtart usually one of the two sealing surfaces made of a soft elastic material.

Teats with slit valve are expensive to manufacture. Radially outwardly extending grooves in the sealing surface are very short, so that good ventilation is difficult to reconcile with adequate sealing against leakage of fluid. Different tightening torques of the screw ring lead to different deformations of the ventilation grooves, which impair their function. At different angles of attack of the sealing surfaces, the production cost due to the soft component is high. Also in these designs, ventilation and sealing depend heavily on the tightening torque of the threaded ring.

The US 2737180 describes a teat of flexible material, which is protected from collapsing due to the Saugunterdruckes. For this, the teat has a spiral channel in the bottom of a mounting flange. The teat is preferably formed of an elastic material or synthetic rubber and silicone rubber. But it can also be made of plastic materials with the same elastic properties, such as PVC.

Due to the elasticity of the air flow is adjustable by adjusting the cross section of the channel by tightening a screw ring for fixing the mounting flange to a drinking bottle is tightened. The variability of the channel cross-section is promoted by the formation of the channel between easily deformable ribs. The small cross section of the channel and its length to prevent the escape of liquid.

The FR 2 548 894 A1 describes a one-piece teat made of a soft elastomer. The teat has several channels, which take the form of a Have spiral section and are formed as a groove in the bottom of the flange. The spiral sections each extend about 240 ° around their common center. The channels should allow air to flow easily when there is a negative pressure in the bottle, and prevent the escape of liquid. Also with this teat, the extent of ventilation and the prevention of leakage of fluid depends on the tightening force applied to the screw ring.

The known nutrients with spiral channels have permanently opened drinking openings, so that protection against leakage of the upturned bottle is not possible. The channels are mainly used to ventilate the bottles and prevent the collapse of the soft nipple while drinking. With firmly tightened Schaubring the channels are largely compressed, whereby the ventilation is greatly reduced. To ensure this even with strong compression, the channels have a large cross-section. For low tightening forces, liquid leakage is therefore easily possible.

Also known are drinking tops in the version as drinking spout (Spout). In these drinking tips, the mouthpiece usually has an oval cross-section and is arranged eccentrically with respect to the annular flange. In the mouthpiece, a suction valve is integrated, which opens when a negative pressure. Further, in the bottom wall, a vent valve is integrated, which opens when a negative pressure builds up in the drinking vessel. The valves make the spouts leak-proof. Mouthpiece, bottom wall and annular flange are preferably formed in one piece from hard plastic (hardspout). There are also soft drinking spouts (softspouts), which are made of one piece of silicone or natural rubber and have a slit valve in the mouthpiece and another slit valve in the bottom wall for ventilation. A disadvantage of the known spouts is the high production costs.

Furthermore, drinking tops in the design as push-pull closure (push-pull closure) are known. This has an externally accessible mouthpiece, which is arranged axially displaceable in a connectable with the drinking container mouthpiece holder. The mouthpiece is reciprocable with the teeth or by hand between an open and a closed position. Because hands are generally not needed to open and close the closure, these drinking tips are particularly popular in the field of sports, recreational activities and drinking containers for children. In simple versions, air flows through the open mouthpiece, for which the user must place the bottle. In complex designs, air can flow through a vent valve in a bottom wall of the mouthpiece holder.

Furthermore, drinking attachments are known with a drinking straw. These have a drinking straw holder with a passage opening into which a drinking straw is sealingly inserted. An upper part of the drinking straw protrudes above the top of the drinking straw holder and a lower part protrudes from the underside of the drinking straw holder into the drinking vessel, in order to withdraw beverage from the drinking vessel during suction at the upper part. The drinking straw can be sealed, for example, by bending over and fixing the bent drinking straw by means of a lid clamped onto the drinking straw holder. Additionally or instead, a suction valve can be integrated in the drinking straw. The drinking straw may be supported by a conical flange on a cone in the bottom wall of the drinking straw holder. The cone of the bottom wall may be provided with ventilation holes. At a negative pressure in the drinking vessel, the flange of the drinking straw can lift off the ventilation holes, so that air can flow in from the outside. This requires the construction of a high negative pressure.

Based on this, the present invention seeks to provide a less expensive leak-proof drinking container, which allows reliable ventilation and is leak-proof.

The object is achieved by a drinking container with the features of claim 1. Advantageous embodiments of the invention are specified in the subclaims

• das Trinkgefäß einen Innenraum, eine kreisrunde Gefäßöffnung, einen die Gefäßöffnung umgebenden Öffnungsrand und ein Außengewinde neben der Gefäßöffnung aufweist,
• der Trinkaufsatz eine Bodenwand, einen um die Bodenwand umlaufenen Ringflansch zur Anlage am Öffnungsrand des Trinkgefäßes, ein von der Bodenwand nach außen stehendes Trinkelement und ein Absperrmittel zum Absperren und Öffnen eines Durchgangs vom Innenraum zur Außenseite des Mundstückes, das zum Trinken öffenbar und ansonsten schließbar ist, aufweist,
• ein Belüftungskanal in der Unterseite des Ringflansches oder in der Oberseite des Öffnungsrandes vorhanden ist, der sich von einer radial weiter innenliegenden und zum Innenraum des Trinkgefäßes hin offenen inneren Kanalöffnung aus bis zu einer radial weiter außen liegenden und zur Umgebung hin offenen äußeren Kanalöffnung erstreckt, zwischen diesen beiden Kanalöffnung mindestens 0,75-fach um das Zentrum der Gefäßöffnung umläuft, eine Querschnittsfläche im Bereich von 0,02 bis 0,08 mm² aufweist und in einem steifen Material mit einem Elastizitätsmodul von mindestens 0,2 kN/mm² ausgebildet ist und
• der Ringflansch mittels des Schraubringes in flüssigkeitsdichter Anlage am Öffnungsrand fixierbar ist.

The drinking container according to the invention has a drinking vessel, a drinking cap and a screw ring, wherein

• the drinking vessel has an interior space, a circular vessel opening, an opening edge surrounding the vessel opening and an external thread next to the vessel opening,
• the drinking cap a bottom wall, an encircled around the bottom wall ring flange for abutment with the opening edge of the drinking vessel, a standing from the bottom wall to the outside drinking element and a shut-off for shutting off and opening a passage from the interior to the outside of the mouthpiece, which can be opened for drinking and otherwise closable , having,
• a ventilation duct is provided in the underside of the annular flange or in the upper side of the opening edge, extending from a radially further inside and to the interior of the drinking vessel open towards the inner channel opening up to a radially outer and outer open to the environment outer channel opening between this both channel opening at least 0.75-fold around the center of the vessel opening, has a cross-sectional area in the range of 0.02 to 0.08 mm ² and in a rigid material with a modulus of elasticity of at least 0.2 kN / mm ^{2 is} formed and
• the annular flange can be fixed by means of the screw ring in liquid-tight contact with the opening edge.

In the drinking vessel according to the invention leakage safety is ensured by the shut-off of the drinking cap and the ventilation channel, which extends both in the radial direction and in the circumferential direction of the vessel opening. The fact that the ventilation channel has a cross-sectional area in the range of 0.02 to 0.08 mm ² , a sufficient ventilation is possible and prevents unimpeded leakage of liquid. The formation of the ventilation channel in the bottom of the annular flange or in the top of the opening edge, which consists of a rigid material, prevents compression of the ventilation channel when tightening the screw ring to the extent that the ventilation channel is largely compressed and adequate ventilation is no longer possible , A sufficient rigidity of the material is given by the fact that this has a modulus of elasticity of at least 0.2 kN / mm ² .

When the ventilation channel circulates 0.75-fold around the center of the vessel opening, the container filled with beverage down to the bottom of the bottle does not run out. In the case of a lying drinking container, namely at least one of the channel openings is at least at the level of the liquid level, so that the liquid does not run out. According to a preferred embodiment, the ventilation duct extends at least simply around the center of the vessel opening. As a result, leakage is prevented even if the drinking container is filled to the opening edge. According to a preferred embodiment, which is even better protected against leakage, the ventilation duct extends several times, in particular 1.5 times, around the center of the vessel opening. In particular, these embodiments can prevent liquid leakage through the capillary effect when wetting the ventilation channel with liquid. As such, the plastics used for the drinking vessel and drinking attachment are not wetted by water or other drinks. However, detergent residues can result in wetting. According to a preferred embodiment, the ventilation channel extends on the annular flange several times around the center of the opening edge. Due to the multi-circumferential ventilation duct is achieved that even then a sufficient effective length of the ventilation duct is covered by the top of the opening edge or the underside of the annular flange when the annular flange is not arranged due to a match between the annular flange and screw precisely concentric on the opening edge. By several revolutions of the ventilation duct to the center can be ensured that the effective length of the ventilation duct always at least 0.75-fold, preferably 1.0-fold, further preferably 1.5 times rotates around the center of the opening edge. Preferably, the effective length of the ventilation channel runs at least 0.75-fold, more preferably at least 1.0-fold, further preferably 1.5-fold around the center of the vessel opening. The inner and outer channel openings are located where the ventilation duct is not yet covered by the opening edge or by the annular flange. The information in the claims to the circulations of the ventilation duct around the center of the opening edge refer to the effective length of the ventilation duct. This is the section of the ventilation duct covered below by the opening edge or above by the ring flange.

According to a preferred embodiment, the ventilation channel extends a maximum of 10-fold, further preferably at most 7.5-fold, further preferably at most 5-fold, furthermore preferably 2.5-fold, around the center of the vessel opening.

The ventilation channel ensures sufficient fluid tightness that prevents leakage or dripping of liquid when the drinking container tips over. It is understood that no absolute liquid-tightness is sought here, since z. B. by intensive shaking, holding the drinking container with the drinking attachment down, if necessary both at the same time, the leakage of individual drops of liquid over time from the ventilation duct can be achieved, which is insignificant in practice.

Preferably, the modulus of elasticity is at least 0.2 kN / mm ² , more preferably at least 0.5 kN / mm ² , further preferably at least 1 kN / mm ² . According to a preferred embodiment, the modulus of elasticity is in the range of 1 to 2 kN / mm ² .

According to one embodiment, the ventilation channel has a cross-sectional area in the range of 0.03 to 0.06 mm ² , preferably in the range of 0.04 to 0.05 mm ² . In these areas, the suction pressure to be overcome and the leak rate are favorable for drinking. These values are particularly favorable when the ventilation channel extends circumferentially 1 to 1.5 times around the center of the vessel opening.

According to a preferred embodiment, the cross-sectional area of the ventilation duct has the same size everywhere, which is located within the claimed range. However, the invention also includes embodiments in which the size of the cross-sectional area varies along the ventilation channel. A variable size of the cross-sectional area may be provided, for example, to counteract the capillary effect. For this purpose, for example, the ventilation channel in the adjoining the channel opening areas have a larger cross section than in the other areas.

According to a further embodiment, the ventilation channel has a spiral or a meandering or a labyrinth-like course around the center of the annular flange. Other courses as well as combinations of the mentioned courses of the ventilation channel are possible. In particular, the ventilation channel may have a plurality of channel sections which extend at different radii around the center of the vessel opening and are interconnected by one or more radially extending channel sections. Furthermore, the ventilation channel can have courses whose center lies outside the center of the vessel opening. Furthermore, the ventilation channel may have a plurality of inner channel openings and / or a plurality of outer channel openings. Preferably, however, it has only a single inner and a single outer channel opening.

According to its embodiment, the ventilation channel has a depth of 0.1 to 0.25 mm, preferably from 0.15 to 0.17 mm. According to a further embodiment, the ventilation channel has a width of 0.35 to 0.55 mm, preferably 0.45 to 0.5 mm. Ventilation channels with dimensions in the areas mentioned are advantageous in terms of manufacturing technology. This is especially true in the event that the carrier of the ventilation duct is injection molded from plastic. In addition, in the widespread drinking vessels having a width of the opening edge in the range of 0.8 to 2.5 mm and an outer diameter in the range of 30 to 70 mm, preferably 35 to 50mm, remains at the bottom of the annular flange or at the top of the Opening edge a sufficiently wide support area, the tightening of the screw ring with an assumed torque is not is damaged. The assumed pull-out torque according to the standard is 1.75 Nm. Drinking containers according to the invention are preferably also designed so that they withstand greater extraction torques without damaging the support area, for example a multiple of 1.75 Nm, in particular 3.5 times twice, three times or four times thereof.

The cross-sectional area of the ventilation channel is basically arbitrary (eg rectangular, triangular, trapezoidal or bell-shaped). However, the cross-section preferably widens toward the underside of the annular flange or toward the top of the opening edge (eg triangular or trapezoidal) in order to facilitate demolding during injection molding. Preferably, the ventilation channel has a bell-shaped cross-sectional geometry due to the production-related radii of the injection molds.

According to a further embodiment, the support region between two adjacent channel sections of the ventilation duct has a width of at least 0.2 mm, preferably of at least 0.25 mm, preferably in the range of 0.3 to 0.35 mm. At these widths, the support area is protected against damage when tightening the screw ring at the assumed torque (of 1.75 Nm or above). This is particularly the case when the ventilation duct is formed in a plastic.

Preferably, the ventilation channel is a groove in the underside of the annular flange or in the top of the opening edge. The formation of the ventilation channel as a groove is advantageous for support areas with a width that is sufficiently stable against damage. Alternatively, the ventilation channel is formed between ribs on the underside of the annular flange or on the top of the opening edge.

According to a preferred embodiment, the opening edge has a width of 0.8 to 2.5 mm. For plastic drinking vessels, the opening edge preferably has a width of 1.0 to 2.5 mm. For drinking vessels made of steel or another metal, it can also have a width of 0.8 mm.

According to a further embodiment, the underside of the annular flange and / or the top of the opening edge on a roughness, which reduces the capillary effect despite detergent-containing residues. As already mentioned, plastics from which drinking vessels and drinking articles are usually made are not wetted by water and other beverages, ie the contact angle of the liquid on a flat surface of the material is greater than 90 °. Under these conditions, liquid does not rise due to a capillary effect in the ventilation channel. If residual scavenging remains on the surface, however, the liquid may wet it, ie the contact angle is less than 90 °. This is counteracted in this embodiment by a roughness of the surface, which prevents wetting with liquid and thus a capillary effect. This roughness is generated according to an embodiment by the annular flange or the entire drinking cap or the opening edge or the entire drinking vessel is injection molded by means of an injection mold, which is produced by milling, turning or eroding. With the injection molding tools produced in this way drinking tips can be produced with ring flanges and drinking vessels with opening edges whose roughness reduces wetting with liquid even in the presence of detergent residues. Since this effect can be reversed by subsequent polishing of the tools, they are preferably used unpolished.

According to a further embodiment, the annular flange and the opening edge are circular disk-shaped or conical or spherical shell-shaped. Any combination of these geometries are possible.

According to a preferred embodiment, the ventilation duct is integrated directly into the underside of the annular wall integrally connected to the bottom wall. According to another embodiment, the ventilation channel is integrated into the underside of a separate annular flange, which can be clamped between the annular flange integrally connected to the bottom wall and the opening edge. According to another embodiment of the ventilation duct is integrated directly into the top of the integrally connected to the drinking vessel opening edge. According to another embodiment, the ventilation channel is integrated in the upper side of a separate, annular disk-shaped opening edge which can be clamped between the opening edge connected integrally with the drinking vessel and the annular flange.

According to a further embodiment, the drinking vessel is a drinking bottle or a drinking cup.

According to a further embodiment, the drinking cap is a drinking spout (softspout or hardspout) or a drinking cap with a push-pull valve or a drinking cap with a drinking straw or a drinking teat.

In a drinking spout, the drinking element is a mouthpiece. The shut-off means is preferably a valve, which is arranged in the passage in a drinking spout. The valve is preferably a diaphragm valve which automatically opens upon application of a negative pressure to the mouthpiece and otherwise closes. In a softspout, the mouthpiece and possibly the bottom wall is made of a soft elastic material and in the case of a hardspout the mouthpiece and possibly the bottom wall are made made of a stiff material. The bottom wall or the mouthpiece may be made of the same rigid material as the annular flange.

In a drinking cap with a push-pull valve, the drinking element is also a mouthpiece which is axially displaceable displaceable in a mouthpiece holder of the drinking cap. The shut-off is formed by the mouthpiece and other shut-off elements, which has the mouthpiece holder. The shut-off means are opened and closed by axially displacing the mouthpiece in the mouthpiece holder. In the push-pull type drinking cap, the mouthpiece may be made of a soft elastic material or a rigid material, and the bottom wall with the mouthpiece holder may be made of a rigid material. The mouthpiece or the bottom wall can be made of the same rigid material as the annular flange.

In a drinking attachment with a drinking straw, the drinking element is the drinking straw or the part of the drinking straw projecting outwardly from the drinking attachment. The shut-off means comprises a means for holding the drinking straw in a folded position in which the drinking straw no longer lets liquid through. This is formed for example by a clamped onto the screw ring or the drinking cap lid, which holds the drinking straw in the bent position. Additionally or alternatively, the shut-off means is a valve integrated into the drinking straw, which opens when a negative pressure is applied to the upper part of the straw and closes when ambient pressure is applied. In the drinking attachment with a drinking straw, the drinking straw may consist of a soft elastic material and the bottom wall with a drinking straw holder for holding the drinking straw of a rigid material. The bottom wall with the drinking straw holder may in particular consist of the same rigid material as the annular flange.

In a teat, the drinking element is a sucker, which is connected via a bottom wall in the form of a suction grommet with the annular flange. The ring flange is made of the rigid material and the nipple and possibly the Saugertülle made of silicone, natural rubber, thermoplastic elastomer or other softer material than the annular flange. The shut-off means is a slit valve consisting of one or more slits at the end of the nipple.

According to a preferred embodiment, the drinking vessel as a whole and / or at least the annular flange and the bottom wall of the drinking cap are made of the rigid material with the elastic modulus of 0.2 kN / mm ² .

According to a further embodiment, the annular flange and / or the opening edge of polypropylene or polyethylene or of polypropylene with admixtures of thermoplastic elastomer or other thermoplastic or vulcanizate or a hard-set thermoplastic elastomer having a stiffness such as polypropylene or polyethylene or metal or made of any combination of said materials.

According to a further embodiment, the annular flange and the bottom wall made of one of said materials. According to a further embodiment, the entire drinking vessel is made of one of the materials mentioned.

Fig. 1

Trinkbehälter mit harter Trinktülle (Hardspout) im Vertikalschnitt;

Fig. 2

die Trinktülle mit ausgeschwenktem Ventilgehäuse in einem vergrößerten Vertikalschnitt;

Fig. 3

dieselbe Trinktülle in der Vorderansicht;

Fig. 4

dieselbe Trinktülle in der Draufsicht;

Fig. 5

dieselbe Trinktülle in der Unteransicht;

Fig. 6

dieselbe Trinktülle in der Seitenansicht von rechts;

Fig. 7

dieselbe Trinktülle in der Seitenansicht von links;

Fig. 8

den Belüftungskanal im Ringflansch der Trinktülle mit dem wirksamen Teil in dunkler Färbung in der Unteransicht;

Fig. 9

den Belüftungskanal in der Unterseite des Ringflansches der Trinktülle mit dem oberen Abschnitt des Öffnungsrandes der Flasche und dem wirksamen Teil des Belüftungskanals dazwischen in einer Perspektivansicht schräg von unten und von der Seite;

Fig. 10

eine weiche Trinktülle (Softspout) in einem Vertikalschnitt;

Fig. 11

dieselbe Trinktülle in einer Unteransicht;

Fig. 12

einen Trinkhalmhalter in einem Vertikalschnitt;

Fig. 13

derselbe Trinkhalmhalter in Unteransicht;

Fig. 14

derselbe Trinkhalmhalter mit eingesetztem Trinkhalm in einem Vertikalschnitt;

Fig. 15

einen Push-Pull-Trinkaufsatz in einem Vertikalschnitt;

Fig. 16

denselben Trinkaufsatz ohne Mundstück in einer Unteransicht.

The invention will be explained in more detail below with reference to the accompanying drawings of exemplary embodiments. In the drawings show:

Fig. 1

Drinking container with hard drinking spout (Hardspout) in vertical section;

Fig. 2

the spout with swung valve body in an enlarged vertical section;

Fig. 3

the same drinking spout in front view;

Fig. 4

the same drinking spout in plan view;

Fig. 5

the same drinking spout in the bottom view;

Fig. 6

the same drinking spout in the side view from the right;

Fig. 7

the same drinking spout in the side view from the left;

Fig. 8

the ventilation channel in the ring flange of the drinking spout with the effective part in a dark color in the bottom view;

Fig. 9

the ventilation channel in the underside of the spout of the spout with the upper portion of the opening edge of the bottle and the effective part of the ventilation channel therebetween in a perspective view obliquely from below and from the side;

Fig. 10

a soft drinking spout (softspout) in a vertical section;

Fig. 11

the same drinking spout in a bottom view;

Fig. 12

a drinking straw holder in a vertical section;

Fig. 13

the same drinking straw holder in bottom view;

Fig. 14

the same drinking straw holder with inserted drinking straw in a vertical section;

Fig. 15

a push-pull drinking attachment in a vertical section;

Fig. 16

the same drinking cap without mouthpiece in a bottom view.

In the present patent application, the indications "top" and "bottom" refer to the orientation of the drinking container with the drinking vessel at the bottom and the drinking cap at the top.

Furthermore, in the following explanation of various embodiments, the same components are provided with corresponding reference numerals.

The drinking container of Fig. 1 has a drinking vessel 1 in the form of a drinking bottle, a drinking cap 2 in the form of a hard drinking spout, a screw ring 3 and a cap 4.

The drinking vessel 1 has an elongate bottle body 5 with a bottle bottom 6 and a sleeve-shaped bottle side wall 7. At the upper end of the bottle side wall 7, the drinking vessel 1 has a shoulder 8, from the inner circumference of a cylindrical bottle neck 9 stands up. The bottleneck 9 surrounds a circular vessel opening 10.

The upper end surface of the bottle neck 9 forms an annular disk-shaped opening edge 11 which surrounds the vessel opening 10. The bottleneck 9 carries on the outer circumference of an external thread 12th

The drinking vessel 1 defines an interior 13, which can be filled with a drink.

For details of the drinking cap 2 is on the Fig. 2 to 6 Referenced.

The drinking cap 2 has an annular disk-shaped annular flange 14. This is connected at its peripheral, inner edge with a dome-shaped bottom wall 15. The bottom wall 15 has a cylindrical outer edge portion 16 and an upwardly arched central portion 17. From the central portion 17 of the bottom wall 15 is upwardly a mouthpiece 18 before, which gradually tapers upwards. The mouthpiece 18 is substantially conical and has in plan view (see. Fig. 4 ) and in each horizontal section an oval shape. The mouthpiece 18 is arranged eccentrically on the central portion 17 at a short distance from the edge portion 16.

The middle section 17 does not extend below the mouthpiece 18, so that the interior of the mouthpiece 18 is accessible from the underside of the drinking attachment 2. Between mouthpiece 18 and edge portion 16, the central portion 17 forms a small inner stage 19th

From the bottom of the bottom wall is a sleeve-shaped valve holder 20 down. The valve holder 20 is disposed below the mouthpiece 18, wherein the mouthpiece 18 opens into the valve holder 20 inside. The wall of the valve holder 20 coincides in a peripheral portion with the edge portion 16. The valve holder 20 projects downward with respect to the annular flange 14.

The valve holder 20 has an inside slightly upwardly conically tapered contour.

The mouthpiece 18 is flattened at the upper end. There it has a drinking opening 21, which is formed by three parallel drinking holes. The drinking cap 2 has a passage 22 which extends from the drinking opening 21 to the lower end of the valve holder 20.

A substantially sleeve-shaped valve housing 23 is integrally connected via a film hinge 24 with the underside of the annular flange 14. The annular flange 14 has a radially beyond the connection of the film hinge 24 protruding portion. The valve housing 23 has on the outside a slightly conical outer contour, which is matched to the inner contour of the valve holder 20, so that the valve housing 23 can be pivoted by pivoting about the film hinge 24 in the valve holder 20. According to Fig. 4 and 5 the valve housing 23 on the sides of two protruding tabs 25, 26, which facilitate the gripping of the valve housing 23.

A cap-shaped valve 27 made of silicone or other soft elastic material is held in the valve housing 23. The valve 27 has an annular disk-shaped, circumferential valve edge 28, against which it bears against an inner step 29 of the valve housing 23. An inserted into the valve housing 23 and z. B. by welding fixed ring 30 holds the valve 27 in the valve housing 23 fixed. In a recessed bottom in the installed state bottom 31, the valve 27 has two conically arranged slots 32, 33 which open when creating a negative pressure and otherwise close.

In the installed state, the valve 27 is arranged in the passage 22 of the drinking cap 2.

On the underside of the annular flange 14, a spirally encircling ventilation channel 34 is arranged outside the connection of the film hinge (see. Fig. 2 and 5 ). In the region of the connection of the film hinge 24, adjacent turns of the ventilation channel 34 are connected to one another by a radial channel section 35 in order to bridge the interruption by the connection. The ventilation channel 34 is formed as a groove in the underside of the annular flange 14.

The ventilation channel 34 has a constructive inner channel opening 34.1 and a constructive outer channel opening 34.2. The maximum width of the opening edge 11, on which the drinking cap 2 can be mounted, is dimensioned so that the inner channel opening 34.1 and the outer channel opening 34.2 barely remain free. The mounting of the drinking cap 2 on opening edges 11 smaller width is preferred because the long ventilation channel still gets free at both ends of the opening edge 11 due to its large length. The actually effective inner and outer channel openings are located in each case at those locations where the ventilation channel is not covered by the opening edge 11.

The drinking cap 2 is made of polypropylene or another polyolefin preferably with admixtures of a thermoplastic elastomer.

The drinking vessel 1 and the screw ring 3 are made, for example, of polypropylene or of another polyolefin or of polyamide.

According to Fig. 1 the drinking cap 2 is placed with the underside of the annular flange 14 on the opening edge 11, so that the channel sections of the ventilation channel 34, which are located outside the connection of the film hinge 24, on the Seat opening edge 11. The film hinge 24, the valve holder 20 and the valve housing 23 protrude into the neck of the bottle. In this position, the drinking attachment 2 is fixed by the screw ring 2 on the drinking vessel 29.

For this purpose, the screw ring 3 has an approximately cylindrical shell 37 with an internal thread 38 and a from the upper edge of the shell inwardly projecting Anpressflansch 39 which rests on the top of the annular flange 14. The Anpressflansch 39 defines a central opening through which the bottom wall 15 is high.

By tightening the screw ring 3, the annular flange 14 is pressed against the opening edge 11.

When turning the screw ring 3 with manual force of the ventilation duct 34 is not or only slightly deformed. If the user sucks on the mouthpiece 18, the valve 27 opens and beverage flows out of the interior 13 of the drinking vessel 1 through the passage 22. In this case, the interior 13 of the drinking vessel 1 is ventilated through the ventilation channel 34. The air can flow between the internal thread 38 and the external thread 12, since there are sufficient ventilation gaps. Optionally, the screw ring 3 can be vented in the region which is arranged next to the underside of the annular flange 14 by an additional ventilation hole that extends from the inside to the outside of the screw ring 3.

The cap 4 is clamped on the outside of the screw ring 3. It is supported on a projecting edge on the underside of the screw ring 3. The cap 4 protects the drinking cap 2 when not in use from contamination.

According to 8 and 9 only a portion of the ventilation duct of the mounted drinking cap 2 is covered by the opening edge 11. This section limits the effective length 40 of the ventilation duct 34. In the example, the effective length of the ventilation duct 34 extends almost twice around the center of the vessel opening 10. At the inner end of the effective length 40 of the ventilation channel 34 is the inner channel opening 40.1 and at the outer end of the outer channel opening 40.2.

The drinking spout 41 of 10 and 11 has a circular cylindrical annular flange 42 with a spiral ventilation channel 43 in the form of a groove on the underside. The inner edge of the annular flange 42 is connected to a bottom wall 44. This has adjacent to the annular flange 42 a constriction 44.1 and above a transition region 45. The transition region 45 terminates in an eccentrically arranged mouthpiece 46. The mouthpiece 46 has in a flattened end several drinking openings in the form of intersecting drinking slots 47, 48th

Such a drinking spout 41 is in the EP 1 924 234 B 1 described. The content of this patent is incorporated by reference into the present application. In contrast to the known drinking spout, the drinking spout according to the invention has an annular flange 42 with a ventilation channel 43 on the underside and the annular flange 42 is made of a rigid material having a modulus of elasticity of at least 0.2 kN / mm ² . In the drinking spout 41, in accordance with the aforementioned patent, preferably, the mouthpiece 46 and the bottom wall 44 are made of natural rubber or of silicone or of a thermoplastic elastomer to realize a soft spout.

The mouthpiece 46 and the bottom wall 44 are, for example, positively and / or materially and / or non-positively connected to the annular flange 42. For this purpose, the bottom wall 44 and the annular flange 42 may have interlocking contours. Further, mouthpiece 46, bottom wall 44, and annular flange 42 may be made of cross-linked or fused materials, such as mouthpiece 46 and bottom wall 44 of thermoplastic elastomer and annular flange 42 of polypropylene or polyethylene with admixtures of thermoplastic elastomer. In a positive connection, for example, the bottom wall 44 on the outer edge and / or the annular flange 42 at the inner edge clamping means for clamping the other part.

The drinking spout 41 is by means of the screw ring 3 on the drinking vessel 1 of Fig. 1 fixable. By Unterduck when drinking open the drinking slots 47, 48 of the mouthpiece 46 and liquid can escape. Air can flow through the spiral ventilation channel 43. If there is no negative pressure on the mouthpiece 46, close the drinking slots 47, 48 automatically. The leakage of liquid is prevented by the closed slots 47, 48 and the ventilation channel 43, even if the drinking container tips over.

According to Fig. 12 and 13 For example, a drinking straw holder 49 has an annular disk-shaped annular flange 50 with a spiral-shaped ventilation channel 51 on the underside. The ventilation channel 51 is a groove in the underside of the annular flange 50.

With the inner edge of the annular flange 50, a sleeve-shaped edge portion 52 of a bottom wall 53 is connected. The edge portion 52 is connected at the top with a dome-shaped central portion 54. The middle section 54 is in turn connected to a conical central portion 55 which carries a sleeve-shaped holding portion 56. Directly adjacent to the holding section 56, two axial ventilation holes 57, 58 are present in the conical central section.

From the top of the bottom wall 53 is in the connecting region of the central portion 54 and central portion 55, a sleeve-shaped support portion 57 upwards.

According to Fig. 14 an upper part of a drinking straw 59 is held in the drinking straw holder 49. This has a tubular body 60 with a widening 61 at the lower end. In addition, the lower part of the drinking straw 59 has a conical, upwardly flared flange 62. Above the flange is on the jacket of the tube body 60, a small cone portion 63 is present, the bottom of which forms a stop.

The upper part of the drinking straw 59 is inserted from below into the holding section 56, whereby the cone section 63 is pushed through the holding section 56 until the stop rests against the upper side of the holding section 56. At the same time, the conical flange 62 bears against the underside of the central section 55. The upper part of the drinking straw 59 is made in one piece of silicone or another soft elastic material.

In the widening 61, a tubular lower part of the drinking straw 59 can be clamped, which protrudes until shortly before the bottom of a drinking vessel.

The drinking straw holder 49 is on the opening edge 11 of the drinking vessel 1 of Fig. 1 placed and fixed by means of the screw ring 3. The lower part of the drinking straw 59 is dimensioned so that it until shortly before the bottom of the bottle 6 protrudes below. The user can take by suction on the outwardly projecting part of the drinking straw 59 drink from the drinking vessel 1. The elasticity of the upper part of the drinking straw 59 in this case allows different orientations of the bottle 1 to. Air can flow in through the ventilation channel 51 from the outside, which is formed between the annular flange 50 and the opening edge 11. For liquid-tight sealing, the cap 4 is clamped onto the screw ring 3. Here, the uppermost part of the drinking straw 59 is bent over the upper edge of the support portion 57 and thereby a sealing of the drinking straw 59 is achieved.

Further ventilation is effected by the conical flange 62, which lifts at elevated negative pressure in the interior 13 of the drinking vessel 1 from the central portion 55 and the ventilation holes 57, 58 releases. This ventilation is used in conventional drinking straw holders. It has the disadvantage that it opens only at a relatively high negative pressure. This ventilation is dispensable in a drinking straw according to the invention. The embodiment shows a conventional drinking straw holder, which was subsequently provided with a ventilation channel 51 in the bottom of the annular flange 50.

The FIGS. 15 and 16 show a drinking cap 64 with a push-pull valve. The drinking cap 64 has an annular flange 65 with a spiral ventilation channel 66 at the bottom. From the inner edge of the annular flange 65 projects upwards a bottom wall 67, which has a sleeve-shaped edge portion 68 and a dome-shaped central region 69.

In the center of the bottom wall 67 is a mouthpiece holder 70. The mouthpiece holder 70 has a sleeve-shaped holder portion 71 which projects upwardly from the bottom wall 67. He also has three from the bottom of the Bottom wall downwardly projecting webs 72. The webs 72 are connected at the bottom of a through an annular disc 73 together. From the center of the disc 73 is a pin 74 upwards. The pin 74 has a wider lower pin portion 75 and a slimmer upper pin portion 76.

A substantially hollow cylindrical mouthpiece 77 is inserted from above into the mouthpiece holder 70 and displaced along the pin 74 upwards into an open position and downwards into a closed position. In the closed position, the lower end of the mouthpiece 77 seals on the widened lower pin portion 76 of the pin 74.

The mouthpiece 77 seals on the outer circumference with respect to the inner circumference of the holder portion 71.

In the open position, liquid can enter between the webs 72 into the annular gap between mouthpiece 77 and pin 74 and exit through the central through hole 77 of the mouthpiece 76 to the outside.

This push-pull closure is in the German patent application DE 10 2012 002 935 described. This patent application is incorporated by reference into the present application. Only the ventilation channel 66 on the annular flange 65 is not known from the earlier patent application.

The push-pull drinking attachment 64 is by means of a screw ring 3 on a vessel 1 of Fig. 1 fixable. To drink the mouthpiece 77 is brought into the open position. When drinking, a pressure equalization takes place through the ventilation channel 66 between the annular flange 65 and the opening edge of the drinking vessel 1. When the mouthpiece 77 is in the closed position, no liquid can escape. Of the Ventilation channel 66 prevents unwanted fluid from leaking, even if the drinking container tips over.

Claims (16)

Drinking container with a drinking vessel, a drinking cap and a screw ring, wherein the drinking vessel has an interior space (13), a circular vessel opening (10), an opening edge (11) surrounding the vessel opening and an external thread (12) adjacent to the vessel opening, - the drinking cap (2; 41; 49; 64) has a bottom wall (15; 44; 53; 67), an annular flange (14; 42; 50; 65) encircling the bottom wall for engaging the opening edge of the drinking vessel, one from the bottom wall outwardly projecting drinking member (18; 46; 53; 77) and a shut-off means (27; 47; 48; 59; 4; 74; 77) for shutting off and opening a passage from the inner space (13) to the outside of the mouthpiece for drinking openable and otherwise closable, has, a ventilation channel (34; 43; 51; 66) is present in the underside of the annular flange (14; 42; 50; 65) or in the upper side of the opening edge (11), which extends from a radially inner to the inner space (FIG. 13) of the drinking vessel (1) towards open inner channel opening (40.1) up to a radially outer and outer open to the outside outer channel opening (40.2) extends between these two channel openings at least 0.75-fold to the center of the vessel opening (10th ), has a cross-sectional area in the range of 0.02 to 0.08 mm ² and is formed in a rigid material having a modulus of elasticity of at least 0.2 kN / mm ² , and - The annular flange (14, 42, 50, 65) by means of the screw ring in liquid-tight contact with the opening edge (11) is fixable. Drinking container according to Claim 1, in which the ventilation channel (34; 43; 51; 66) extends in the circumferential direction 1-fold, preferably 1.5-fold, preferably several times around the center of the annular flange (14; 42; 50; 65). Drinking container according to claim 1 or 2, wherein the ventilation channel (34; 41; 51; 66) has a cross-sectional area in the range of 0.03-0.06 mm ² , preferably in the range of 0.04-0.05 mm ² . A drinking container according to any of claims 1-3, wherein the cross-sectional area of the ventilation channel (34; 43; 51; 66) is the same size throughout. Drinking container according to one of claims 1 - 4, wherein the ventilation channel (34; 43; 51; 66) has a spiral or a meandering or a labyrinthine course around the center of the vessel opening (10) around. Drinking container according to one of claims 1-5, wherein the ventilation channel (34; 43; 51; 66) has a depth of 0.1-0.25 mm, preferably of 0.15-0.17 mm. Drinking container according to one of claims 1-6, wherein the ventilation channel (34; 43; 51; 66) has a width of 0.35 - 0.55 mm, preferably 0.45 - 0.5 mm. Drinking container according to one of claims 5 - 7, wherein the support area between two adjacent channel sections of the ventilation channel (34; 43; 51; 66) has a width of at least 0.2 mm, preferably of at least 0.25 mm, preferably in the range of 0.3 to 0.35 mm. Drinking container according to one of claims 1 to 8, wherein the opening edge (11) has a width of 0.8 - 2.5 mm. Drinking container according to one of claims 1 to 9, wherein the opening edge (11) has an outer diameter in the range of 30 to 70 mm, preferably in the range of 35 to 50 mm. Drinking container according to one of claims 1 - 10, wherein the underside of the annular flange (14; 42; 50; 65) and / or the top of the opening edge (11) has a roughness which prevents or reduces the capillary effect in the case of detergent-containing wetting. Drinking container according to one of claims 1-11, wherein the annular flange (14; 42, 50; 65) and the opening edge (11) are circular disc-shaped or conical or spherical shell-shaped. A drinking container according to any one of claims 1 to 12, wherein the ventilation channel (34; 43; 51; 66) extends directly into the underside of the annular flange (14; 42; 50; 65) integral with the bottom wall (15; 44; 53; 67) ) is integrated or integrated into the underside of a separate annular flange which can be clamped between the annular flange integrally connected to the bottom wall and the opening edge or in which the ventilation channel (14; 43; 51; 66) is integrated directly into the top of the one with the drinking vessel integrated opening edge is integrated or is integrated in the top of a separate, annular disk-shaped opening edge, the between the one-piece with the drinking vessel associated opening edge (11) and the annular flange (14; 42; 50; 65) can be clamped. Drinking container according to one of claims 1 to 13, wherein the drinking vessel (1) is a drinking bottle or a drinking cup and / or the drinking cap (2) a drinking spout or a drinking cap with a push-pull valve or a drinking cap with a drinking straw or a Teat is. Drinking container according to one of claims 1 to 14, in which the drinking vessel (1) in total and / or at least the annular flange (14; 42; 50; 65) and the bottom wall (15; 44; 53; 67) of the drinking cap (2) The rigid material with the modulus of elasticity of 0.2 kN / mm ² consists. Drinking container according to one of claims 1 to 15, wherein the annular flange 14; 42; 50; 65) and / or the opening edge (11) made of polypropylene or polyethylene or polypropylene with admixtures of thermoplastic elastomer or other thermoplastic or vulcanizate or a hard-set thermoplastic elastomer having a hardness such as polypropylene or polyethylene or metal or from any combination of said materials.

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