EP3072497A1 - Beverage container with a drinking vessel and a drink attachment - Google Patents

Abstract

Drinking container with a drinking vessel, a Tiinkaufsatz and a screw ring, wherein the tunk 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 attachment has a circumferential annular flange for bearing against the opening edge of the drinking vessel and an outwardly projecting drinking element, - Arranged at least one part-circular around the vessel opening ventilation groove in the bottom of the annular flange and is covered by the top of the opening edge or arranged in the top of the opening edge and covered by the underside of the annular flange and in the bottom of the annular flange or the top of the opening edge additionally to the vent groove, a radially outwardly extending inlet groove connected to the one end of the vent groove, and a radially inwardly extended outlet groove connected to the other end of the vent groove, and; the screw ring is screwed onto the external thread with an internal thread and presses the ring flange against the opening edge with a screw flange.

Description

The invention relates to a drinking container with a drinking vessel and a drinking cap. The drinking vessel is preferably a drinking bottle and the drinking attachment is preferably a teat with a screw ring.

Drinking attachments have a circumferential annular flange for attachment to the opening edge of the drinking vessel by means of a screw ring and an outwardly projecting mouthpiece with at least one drinking opening in the outside. The drinking opening is connected via a passage with the inside of the mouthpiece. By sucking on the mouthpiece, 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 slot or multiple holes or slots in the top of the teat. 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 in the underside of the annular flange, through which air can flow through between the annular flange and the opening edge of the drinking vessel.

Teats with slit valve are expensive to manufacture. Radially outwardly extending grooves in the sealing surface are very short, so 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.

Under the product name "Lactalis" a teat thermoplastic TPE (TPE) are marketed, which have radially extending, raised webs for ventilation on the underside of the annular flange. If the screw ring is screwed on too tightly, the bars are squeezed and the bottle is no longer ventilated. If the screw ring loosely screwed onto the bottle, although the ventilation works very well, but the drinking container is leaking.

The US 2,737,180 describes a teat of flexible material, which is protected from collapsing due to the Saugunterdruckes. For this purpose, the teat has in the bottom of a ring flange a spiral-shaped channel, which is bounded by ribs on the underside of the annular flange. The teat is preferably formed of an elastic material or synthetic rubber and silicone rubber. Due to the elasticity of the teat, the air flow changes with the cross section of the channel, which can be changed by more or less tightening a screw ring for fixing the annular flange to a drinking bottle. The variability of the channel cross-section is promoted by the formation of the channel between easily deformable ribs.

The FR 2 548 894 A1 describes a one-piece teat made of a soft elastomer. The teat has a plurality of channels, which have the shape of a spiral portion and are formed as a groove in the bottom of a ring 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. Even with this teat, the extent of the ventilation depends on the tightening force exerted on the screw ring.

The well-known nutrient suckers with spiral channels have permanently opened drinking openings, so that protection against leakage of the upturned bottle is not possible. The channels are used for ventilation of the bottle and should prevent collapse of the soft nipple while drinking. When tightened screw ring they are largely compressed, whereby the ventilation is greatly reduced. To ensure adequate ventilation even with heavy compression, the channels have a large cross-section. At low tightening forces, liquid leakage is easily possible.

Also known are drinking tops in the embodiment as drinking spout (spout). Here, the annular flange runs around a bottom wall. The mouthpiece projects outwardly from the bottom wall and is eccentric with respect to the annular flange. In the mouthpiece a drinking valve is integrated, which opens when creating 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 ( hard spout). There are also soft spouts that are made of silicone or natural rubber in one piece 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. As a result of that As the hands are generally not needed for opening and closing 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 embodiments, air can flow through a vent valve in a bottom wall of the mouthpiece holder.

In addition, 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 cap 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 of the bottom wall of the drinking straw holder. The cone can be provided with ventilation holes. At a negative pressure in the drinking vessel, the flange of the straw can lift off the ventilation holes, so that air can flow from the outside. This requires a high negative pressure.

The EP 2 818 153 A1 describes a drinking container, wherein in the bottom of a ring flange of a drinking attachment or in the top of the opening edge of a drinking vessel, a ventilation channel is present. The ventilation channel extends from a radially further inside and the interior of the drinking vessel towards open inner channel opening to a radially further outward and Environment towards open outer channel opening. Between the two channel openings, the ventilation channel runs at least 0.75 times around the center of the vessel opening. It 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 . According to one embodiment, it is spiral. The cross-sectional area of the ventilation channel allows adequate ventilation and prevents unhindered leakage of liquid. The training in a stiff material prevents compression of the ventilation duct when tightening the screw ring. The spiral shape ensures that even with a common assembly tolerance, a portion of the ventilation channel is covered by a narrow opening edge, so that sufficient ventilation is achieved and leakage of liquid is avoided. This invention is particularly suitable for drinking vessels having a narrow opening edge.

Bottles with a thin opening edge are in particular bottles produced by injection blow molding and disposable glass bottles. Bottles with a wide opening edge are in particular made of plastic in the extrusion blown process with lost head bottles and reusable glass bottles. In these bottles, the opening edge has a large tolerance. Correspondingly, the effective part of the spiral ventilation duct covered by the opening edge is of different lengths. The pressure loss and thus the pressure equalization in the ventilation change with the effective length of the ventilation duct. In addition, the liquid is prevented to varying degrees from leaking out of the drinking container.

Based on this, the present invention seeks to provide a drinking container, which allows for a drinking vessel with a wide opening edge improved ventilation and avoids leakage of liquid.

The object is achieved by a teat with the features of claim 1. Advantageous embodiments of the teat are given in subclaims.

• das Trinkgefäß einen Innenraum, eine kreisrunde Gefäßöffnung, einen die Gefäßöffnung umgebenden Öffnungsrand und ein Außengewinde neben der Gefäßöffnung aufweist,
• der Trinkaufsatz einen umlaufenden Ringflansch zur Anlage am Öffnungsrand des Trinkgefäßes und ein nach außen vorstehendes Trinkelement aufweist,
• mindestens eine teilkreisförmig um die Gefäßöffnung umlaufende Belüftungsnut in der Unterseite des Ringflansches angeordnet und von der Oberseite des Öffnungsrandes abgedeckt ist oder in der Oberseite des Öffnungsrandes angeordnet und von der Unterseite des Ringflansches abgedeckt ist und in der Unterseite des Ringflansches oder in der Oberseite des Öffnungsrandes zusätzlich zu der Belüftungsnut eine mit dem einen Ende der Belüftungsnut verbundene, radial nach außen erstreckte Einlassnut und eine mit dem anderen Ende der Belüftungsnut verbundene, radial nach innen erstreckte Auslassnut vorhanden ist und
• der Schraubring mit einem Innengewinde auf das Außengewinde aufgeschraubt ist und mit einem Schraubringflansch den Ringflansch gegen den Öffnungsrand drückt.

The drinking container according to the invention comprises 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 has a circumferential annular flange for engaging the opening edge of the drinking vessel and an outwardly projecting drinking element,
• at least one parting circle around the vessel opening ventilation groove disposed in the bottom of the annular flange and is covered by the top of the opening edge or arranged in the top of the opening edge and covered by the underside of the annular flange and in the bottom of the annular flange or in the top of the opening edge additionally to the vent groove, a radially outwardly extending inlet groove connected to one end of the vent groove, and a radially inwardly extending outlet groove connected to the other end of the vent groove, and;
• the screw ring with an internal thread is screwed onto the external thread and presses with a Schraubringflansch the annular flange against the opening edge.

In the drinking container according to the invention, the ventilation groove is arranged in the underside of the annular flange and covered by the top of the opening edge. Alternatively, it is arranged in the top of the opening edge and covered by the underside of the annular flange. As a result, the ventilation channel formed by the covered ventilation groove always has a defined length, so that a sufficient ventilation ensured and the unimpeded leakage of liquid is avoided. The invention is particularly suitable for drinking vessels that have a wide opening edge, especially when the wide opening edge has large tolerances. Through the wide opening edge can be ensured that the part-circular ventilation groove is completely covered. Measuring tolerances of the opening edge and positional tolerances of the annular flange and opening edge do not affect the length of the ventilation groove, which forms the ventilation channel covered. Although the radially outwardly extending inlet channel and the radially inwardly extending outlet channel can be covered due to tolerances to varying degrees. However, due to the small dimensions of the inlet and outlet duct, this does not affect the overall length of the ventilation duct. The leakage of liquid is additionally prevented by a suitable choice of the cross section of the ventilation groove by an interfacial effect or a capillary effect. In this case, the interfacial tension between the liquid and the surface of the ventilation groove prevents the liquid from flowing through the ventilation groove due to gravity.

For this purpose, the ventilation groove according to a preferred embodiment, a width in the range of 0.1 to 1.0 mm, preferably from 0.4 mm to 0.6 mm, and a height in the range of 0.1 mm to 1.0 mm, preferably from 0.4 mm to 0.6 mm. Preferred is a ventilation groove with a width of 0.5 mm and a height of 0.5 mm. Preferably, the inlet groove and the outlet groove have the same width and height as the ventilation groove.

According to a preferred embodiment, the ventilation groove is semicircular. The semicircular vent groove prevents gravity from entering the inlet groove from the drinking vessel and flowing out of the outlet groove when the drinking vessel is oriented horizontally. In addition, the free leakage of liquid can be prevented by an interfacial tension effect. However, the invention also includes embodiments in which the ventilation groove is smaller or larger than semicircular.

According to a preferred embodiment, two part-circular ventilation grooves are provided, which are arranged symmetrically with respect to a diameter of the annular flange or the vessel opening. The two ventilation grooves ensure that ventilation takes place even if one of the two ventilation grooves is clogged or damaged. By different placements of the inlet grooves at the opening edge, it can be achieved that at least one inlet groove does not come into contact with liquid and that the ventilation groove connected thereto is permeable.

According to a further embodiment, the annular flange on the underside and / or the opening edge on the upper side is completely or partially flat. The ventilation groove is arranged in the flat bottom or top. This is preferably the case with drinking vessels, the case in the extrusion blown with lost head getting produced. Also for drinking vessels made of glass for multiple use.

According to a further embodiment, the annular flange on the underside and the opening edge on the upper side is completely or partially conical. The vent groove is located in the conical bottom or top. This is preferred in the case of vessels with a thin opening edge to provide a large covering surface for the ventilation groove, which covers the ventilation groove independently of tolerances.

According to a further embodiment, the annular flange at the bottom and / or the opening edge at the top outside adjacent to the conical part has a planar part.

According to a further embodiment, the outlet groove opens on the inner circumference of the annular flange and / or the inlet groove on the outer circumference of the annular flange. As a result, a ventilation over the inner circumference and / or the outer circumference of the annular flange and thus be ensured regardless of tolerances.

According to a further embodiment, the drinking vessel is a drinking bottle or a drinking cup and / or the drinking cap is a teat or a drinking spout or a drinking cap with a push-pull valve or a drinking cap with a drinking straw. The preferred application are drinking containers with drinking bottle and teat. However, the invention is also applicable to other drinking containers, especially if they have a large opening edge with large tolerances. In at least partially conical design of annular flange and opening edge, the invention is also applicable to any drinking vessels with narrow opening edges.

According to a preferred embodiment, the drinking cap comprises a drinking valve. As a result, a leak-proof drinking container is achieved. The drinking valve is for example a slit valve in the end of the mouthpiece (teat) of a teat. However, it may also be any valve (e.g., slit valve or ball check valve) in a drinking spout or a push-pull valve or a bendable drinking straw.

According to a further embodiment, the screw ring is a separate from the drinking cap component. Finally, the invention relates to embodiments in which the screw ring is made in one piece with the drinking cap.

In one embodiment as a drinking bottle with a teat of the teat can be made in particular of silicone or thermoplastic elastomer.

Fig. 1

ein Trinksauger mit ebenem Ringflansch am Oberbereich einer Trinkflasche in einem Vertikalschnitt;

Fig. 2

dieselbe Anordnung in einer teilweise geschnittenen Perspektivansicht von oben;

Fig. 3

den Trinksauger in Perspektivansicht von unten;

Fig. 4

den Trinksauger mit markierter Abdichtfläche in einer Perspektivansicht von unten;

Fig. 5

den Trinksauger in Perspektivansicht von oben;

Fig. 6

Oberbereich der Trinkflasche mit markierter Abdichtfläche in einer teilweise geschnittenen Perspektivansicht von oben;

Fig. 7

Trinksauger mit teilweise konischem Ringflansch am Oberbereich einer Trinkflasche mit teilweise konischem Öffnungsrand in einem Vertikalschnitt;

Fig. 8

dieselbe Anordnung in einer teilweise geschnittenen Perspektivansicht von oben;

Fig. 9

derselbe Trinksauger in einer Perspektivansicht von unten;

Fig. 10

derselbe Trinksauger in einer Perspektivansicht von oben.

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

Fig. 1

a teat with a flat annular flange at the top of a bottle in a vertical section;

Fig. 2

the same arrangement in a partially sectioned perspective view from above;

Fig. 3

the teat in perspective view from below;

Fig. 4

the teat with marked sealing surface in a perspective view from below;

Fig. 5

the teat in perspective view from above;

Fig. 6

Upper section of the drinking bottle with marked sealing surface in a partially cutaway perspective view from above;

Fig. 7

Teat with partially conical annular flange at the top of a drinking bottle with a partially conical opening edge in a vertical section;

Fig. 8

the same arrangement in a partially sectioned perspective view from above;

Fig. 9

the same teat in a perspective view from below;

Fig. 10

the same teat in a perspective view from above.

In the present application, the terms "top" and "bottom" and derived terms refer to an orientation of the drinking container, in which the drinking vessel at the bottom and the drinking cap arranged at the top and the center axis of the vessel opening and the annular flange is vertically aligned.

According to Fig. 1 and 2 a drinking container 1 according to the invention has a drinking vessel 2 and a drinking teat 3. Furthermore, the drinking container 1 has a screw ring 4, which holds the drinking teat 3 at the top of the drinking vessel 2.

According to FIGS. 3 to 6 the teat 3 has a suction part 5 which is connected at the bottom with an annular flange 6.

The suction part 5 comprises a bellows-like suction nozzle 7 and a sucker 8. The lower end of the suction grommet 7 is connected to the annular flange 6 and the upper end of the suction grommet 7 is connected to the sucker 8. Starting from the annular flange 6, the suction grommet 7 has an upwardly widening lower cone section 9 and is connected in the region of its maximum diameter over a radius with an upwardly tapering upper cone section 10. At the top End of the upper cone section 10 connects via a further radius of the suction 8.

The nipple 8 has a nipple neck 11 and a nipple head 12. The suction head 12 is provided on one side with an obliquely inclined to the central axis of the annular flange 6 chamfer 13. On the opposite side it has at least one drinking opening 14 for liquid food. The drinking opening 14 is preferably formed by at least one slot or at least one hole in the wall of the teat 8. The annular flange 6 projects radially outward with respect to the suction grommet 7.

Between the annular flange 6 and the lower cone section 9, the teat 3 has a circumferential constriction 15.

At a small distance from the annular flange 6, an upper bead 16 runs around on the outer side of the lower cone section 9, and delimits laterally an outer annular groove 17 which circulates on the outer circumference of the lower cone section 9.

The annular flange 6 is substantially planar. According to Fig. 3 he has in the bottom 18 two semicircular ventilation grooves 19 which are arranged symmetrically with respect to a diameter of the annular flange 6. Each vent groove 19 is connected at one end to a radially outwardly extending inlet groove 20 and at the other end to a radially inwardly extending outlet groove 21. In each case, the inlet groove 20 connected to one ventilation groove 19 is arranged next to the outlet groove 21 connected to the other ventilation groove 20. The inlet groove 20 of the one ventilation groove 19 is offset by approximately 180 ° with respect to the inlet groove 20 of the other ventilation groove 19. The ventilation grooves 19 and the Inlet grooves 19 and the Auslassnuten 20 have, for example, a cross section of 0.5 mm x 0.5 mm.

The teat 3 is made in one piece of silicone, thermoplastic elastomer or other soft elastic material. Preferably, the material is injection-moldable.

The drinking vessel 2 is a drinking bottle, according to Fig. 6 a hollow cylindrical bottle body 21 having a bottle bottom at the lower end. At the upper end of the bottle body is connected via a bottle shoulder 22 with a bottleneck 23. The bottleneck 23 carries an external thread 24 for screwing on the screw ring 4. On the top, the bottleneck 23 has an inwardly angled opening edge 25, which surrounds a circular vessel opening 26. Adjoining the vessel opening 26, the opening edge 25 on the upper side 27 has an annular disk-shaped opening edge surface 28, the inner part of which is a sealing surface 29. Between the opening edge surface 28 and the bottle neck 23, the opening edge has a conical opening edge surface 30.

The bottle 2 is made in one piece from a hard plastic, such as polypropylene, polyethylene or polycarbonate. It is preferably made by extrusion blown head.

The screw ring 4 has a circular cylindrical jacket 31 with an internal thread 32 on the inside. The upper edge of the shell 31 is provided with an inwardly projecting Schraubringflansch 33. The Schraubringflansch 33 has a central through hole 34. Between Schraubringflansch 33 and internal thread 32 runs on the inner circumference of the shell 21, a lower bead 35 to. Schraubringflansch 33 and lower bead 35 laterally bound on the inner circumference of the shell 31 encircling inner annular groove 36th

On the underside of Schraubringflansches 33 several ribs 37 run around the through hole 34.

The teat 3 is inserted from below with the suction part 5 in the through hole 34 until the inner edge of Schraubringflansches 33 engages in the outer annular groove 17 of the teat 3 and the outer edge of the annular flange 6 in the inner annular groove 36 of the threaded ring 4. The preassembled unit of teat 3 and screw ring 4 is screwed onto the external thread 24 of the bottle 2 until the bottom 18 of the annular flange 6 abuts the sealing surface 29. Alternatively, the annular flange 6 is placed on the opening edge surface 28 and then the screw ring 4 slipped over the teat 3 and screwed to the bottle 2.

Teat 3, screw ring 4 and drinking bottle 2 are coordinated so that when conditioning the annular flange 6 on the sealing surface 29 of the opening edge 25, the ventilation grooves 19 in the in Fig. 3 marked, annular disk-shaped sealing region 37 are covered by the sealing surface 29. When the user sucks on the teat 3 and through the drinking opening 14 fluid flows out, forms a negative pressure in the drinking vessel 2. Through the ventilation channels 19, a pressure equalization takes place with the environment.

In this case, the inflowing air enters the ventilation grooves 19 through the inlet grooves 20 exposed outside the opening edge 25 and enters the drinking vessel 2 through the outlet grooves 21 exposed within the opening edge 25. To the inlet grooves 20, the inflowing air passes through, for example the gap between internal thread 32 and external thread 24 or between teat 3 and screw ring. 4

Due to the capillary action, however, no water or other liquid can escape from the drinking vessel 2 through the ventilation grooves 19. In addition, a free outflow of liquid is prevented by the inlet groove 20 is disposed above lying with the same ventilation duct 19 Auslassnut 21 when the drinking vessel 2, when the liquid is present in the drinking vessel at the Auslassnut 21. In addition, due to the small cross-section and the relative long length, the ventilation groove 19 of the liquid entering it opposes a high flow resistance. As a result, at most a small, tolerable leakage mass flow can escape. However, the flow resistance is much lower for the inflowing air, so that a relatively unhindered pressure equalization with the environment can take place. The cross section of the vent groove 19 does not change practically when the screw ring 4 is tightened with different torque.

The above ventilation and leakage protection works particularly well with drinking vessels 2 with wide opening edges 25, in which it can be ensured that the ventilation channel 19 circumferentially located centrally above the opening edge 25.

The embodiment of Fig. 7 to 10 is particularly suitable for bottles with narrow opening edges. Due to tolerances, it is hardly possible with narrow opening edges to position the ventilation channels 19 on the underside of a flat annular flange 6 centrally above the opening edge 25.

According to Fig. 7 and 8th This embodiment differs from the previously described in that the annular flange 6 in addition to a flat flange portion 38 has a downwardly tapered conical flange portion 39. The ventilation grooves 19 are arranged on the outside of the conical flange 39. According to Fig. 9 The inlet grooves 20 each extend from the outer edge of the flat flange portion 37 to the conical flange portion 39 and on the conical flange portion 39 to one end of a ventilation groove 19. The outlet grooves 21 each extend from the other end of the ventilation channel 19 to the inner edge of the conical Flange section 39.

According to Fig. 7 and 8th In addition, the opening edge 25 of the drinking vessel 2 has a flat opening surface 28 at the top and, adjoining it, an upwardly flared, conical opening edge surface 30. The cone angle of the conical opening edge surface 30 coincides with the cone angle of the conical flange portion 39.

The teat 3 is attached to the drinking vessel 2 by means of the screw ring 4 in the manner described above. Here, the conical flange portion 39 is sealingly against the conical opening edge surface 38. By way of the inlet grooves 20, the ventilation grooves 15 connected thereto and the outlet grooves 21 connected thereto, pressure equalization with the environment can take place. At the same time prevent the ventilation grooves 19 fluid leaks.

The conical flange section 39 and the conical opening edge surface 30 ensure that the ventilation channels 19 are covered by the opening edge 25 after assembly.

LIST OF REFERENCE NUMBERS

1

drinkware

2

Drinking vessel,

3

teats

4

screw ring

5

suction

6

annular flange

7

Saugertülle

8th

sucker

9

lower cone section

10

upper cone section

11

teat neck

12

suction head

13

bevel

14

drinking opening

15

constriction

16

upper bead

17

outer ring groove

18

bottom

19

ventilation grooves

20

inlet groove

21

exhaust groove

22

bottle shoulder

23

bottleneck

24

external thread

25

opening edge

26

vessel opening

27

top

28

Opening edge surface

29

sealing surface

30

conical opening edge surface

31

coat

32

inner thread

33

Schraubringflansch

34

Through Hole

35

lower bead

36

inner ring groove

37

ribs

38

flat flange section

39

conical flange section

Claims (13)

Drinking container with a drinking vessel, a drinking cap and a screw ring, wherein the drinking vessel (2) has an interior space, a circular vessel opening (26), an opening edge (25) surrounding the vessel opening and an external thread (24) next to the vessel opening, - The drinking cap (3) has a circumferential annular flange (6) for resting against the opening edge (25) of the drinking vessel and an outwardly projecting drinking element (5), - At least one partially circular around the vessel opening (26) encircling ventilation groove (19) in the bottom (18) of the annular flange (6) and covered by the top of the opening edge (25) is covered or in the top of the opening edge (25) and arranged the underside of the annular flange (6) is covered and in the bottom of the annular flange (6) or the top of the opening edge (25) in addition to the ventilation groove (19) connected to the one end of the ventilation groove, radially outwardly extending inlet groove (20) and a radially inwardly extending outlet groove (21) connected to the other end of the vent groove, and - The screw ring (4) with an internal thread (32) on the external thread (24) is screwed and with a Schraubringflansch (33) the annular flange (6) against the opening edge (25) presses. Drinking container according to claim 1, wherein the ventilation groove (19) is semicircular. Drinking container according to claim 1 or 2, in which two part-circular ventilation grooves (19) are present, which are symmetrical with respect to a Diameter of the annular flange (6) or the vessel opening (26) are arranged. Drinking container according to one of claims 1 to 3, which has two semicircular ventilation grooves (19), wherein the inlet groove (20) and the outlet groove (21) of the two ventilation grooves (19) are each arranged side by side. Drinking container according to one of claims 1 to 4, wherein the annular flange (6) on the underside (18) and / or the opening edge (25) on the upper side (27) is completely or partially flat. Drinking container according to claim 5, wherein the drinking vessel made of plastic in the extrusion blown with lost head. Drinking container according to one of claims 1 to 6, wherein the annular flange at the bottom and in which the opening edge on the upper side (27) is completely or partially conical. Drinking container according to claim 7, wherein the drinking vessel (2) is made of plastic by injection blow molding. Drinking container according to one of claims 5 to 8, wherein the annular flange (6) on the underside (18) and / or the opening edge (25) on the upper side (27) has a flat part externally adjacent to the conical part. Drinking container according to one of claims 1 to 9, wherein the outlet groove (21) on the inner circumference of the annular flange (6) opens and / or in which the inlet groove (20) on the outer circumference of the annular flange (6) opens. Drinking container according to one of claims 1 to 10, wherein the drinking vessel (2) is a drinking bottle or a drinking cup and / or the drinking cap is a teat or a drinking spout or a drinking cap with a push-pull valve or a drinking cap with a drinking straw. Drinking container according to one of claims 1 to 11, wherein the drinking cap (3) comprises a drinking valve. Drinking container according to one of claims 1 to 12, wherein the screw ring (4) is a separate from the drinking cap (3) component or in which the screw ring (4) is integral with the drinking cap (3).

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