WO2017118601A1

WO2017118601A1 - Bottle seal

Info

Publication number: WO2017118601A1
Application number: PCT/EP2017/000004
Authority: WO
Inventors: Sven Steffmann
Original assignee: Krallmann Kunststoffverarbeitung Gmbh
Priority date: 2016-01-07
Filing date: 2017-01-04
Publication date: 2017-07-13
Also published as: DE102016000075B3

Abstract

The invention relates to a bottle seal having a bottle top part (15), which can be attached immovably and for conjoint rotation on a bottle neck and which has at least one through opening (28) for a liquid to be poured out, and a valve body (19) which is arranged downstream of the bottle top part and can be brought into sealing abutment with the bottle top part. According to the invention the valve body is designed as a heavy valve body and has a density p of p ≥1.5g/cm ³ and in particular of p >2.0g/cm ³.

Description

bottle Cap

The invention relates to a bottle closure according to the preamble of claim 1. In such a bottle closure, as known from EP 1566343 A2, the valve body is due to its weight, i. adjusted by gravity along a guide. When the bottle stands upright on a ground, the valve body moves by gravity into its lower position in which it is in sealing contact with the bottle head part. This is to prevent that the liquid in the bottle can not evaporate, even if it should be unused for a longer period of time.

When the user tilts the bottle, the valve body is displaced by gravity and disengages from the sealing abutment on the bottle head part so that the user can pour out the liquid.

Corresponding bottle caps are usually made for cost reasons as plastic injection molded parts. It has been found that the valve body can tilt or hang in its displacement due to gravity, so that it is not ensured that it is in

CONFIRMATION COPY the sealing gasket applied to the bottle head portion returns when the user turns off the bottle.

If an opened bottle is left standing for an extended period of time, it may happen that the valve body adheres to or sticks to the bottle head part and then does not become detached therefrom when the user tilts the bottle to pour liquid out of the bottle. This causes the liquid in the bottle to evaporate.

The invention has for its object to provide a bottle closure of the type mentioned, in which it is ensured that the valve body reliably detaches from its sealing position and returns to its sealing position.

This object is achieved by a bottle closure with the features of claim 1.

The term "bottle" in the sense of this invention includes not only the usual plastic or glass bottles, but additionally also any container having a pouring opening formed on a neck onto which a corresponding closure can be placed.

The term "axial" in the sense of the present invention describes the direction along the longitudinal axis of the bottle neck and thus essentially the pouring direction of the liquid. In a typical bottle standing upright on a horizontal surface, the term "axial" describes the direction of the vertical central axis of the bottle or of the bottle placed thereon. rule closure. For the purposes of the invention, the terms "top" and "bottom" are based on a vertical orientation of the bottle, wherein the bottle cap is arranged at the upper end of the bottle.

According to the invention, it is provided that the valve body is designed as a heavy-weight valve body and has a density p of p> 1, 5g / cm ³ . In particular, the valve body has a density p of p> 2.0 g / cm ³ and preferably of p> 2.5 g / cm ³ .

Due to this very heavy design of the valve body is ensured that the force on the valve body kende gravity is sufficient to him on the one hand safely released from the sealing position when the user wants to serve the liquid. On the other hand, it is ensured by the relatively high density of the valve body that this returns after pouring the liquid in its fitting to the bottle head part, sealing position.

As a material for the valve body, for example, glass metal, stone, granite or clay can be used. The valve body may consist entirely of a single one of these materials and should be at least predominantly made up of at least one or a combination of these materials.

In a possible embodiment of the invention can be provided that the valve body is formed as a one-piece monolithic component. Alternatively, however, it is also possible to design the valve body with a relatively lightweight base element, for example made of plastic, at and / or in the ballast parts of a heavier material, for example, one of the above materials are arranged. Also in this multi-material construction, the valve body in its entirety has a density in specified size.

In one possible embodiment it can be provided that a ballast body, for example of metal, is encapsulated with plastic, so that it is ensured that the liquid only comes into contact with the plastic and not with another material.

In a further development of the invention, an axially adjustable spout part can be provided, by means of which the valve body can be tensioned against the bottle head part. The spout part is adjusted axially by the user, for example via a gear with a threaded engagement. By means of the spout part can be applied to the valve body in exciting sealing against the bottle head part exciting force, which is reliably prevented that liquid can evaporate from the bottle.

To reach an exact defined movement of the valve body to e, can be provided in .Weiterbildung of the invention that the valve body has a guide pin which leads displaceably ge in a recording of the spout part and is recorded.

The upper spout part and the lower bottle head part are preferably geometrically configured so that they can encapsulate the valve body between them. In this way, the encapsulated valve body is inaccessible from the outside of the bottle cap, which makes manipulation NEN on the bottle and in particular their refilling with an undesirable liquid are reliably avoided.

Further details and features of the invention will become apparent from the following description of an embodiment with reference to the drawings. Show it:

1 is a perspective external view of a bottle closure according to the invention,

2 shows the components of the bottle closure in an exploded view,

3 shows a longitudinal section through a bottle closure in the closed starting position,

Fig. 4 is a figure 3 corresponding sectional view of

Bottle stopper with extended spout part and

Fig. 5 is a perspective outside view of the bottle closure with extended spout part.

Figure 1 shows a perspective outside view of a bottle closure 10, wherein only the substantially cylindrical outer cap 11 made of plastic is visible, which has on its upper face a cover 12, the integral over a circumferential predetermined breaking portion 13, for example in the form of a ring of reduced material thickness to the outer cap 11 is formed. In its upper part, the outer cap 11 has an outer circumferential

Structuring 14 in the form of a plurality of juxtaposed vertical ribs, which prevent a User slipping on actuation of the bottle closure 10.

FIG. 2 shows the individual components of the bottle closure 10 in an exploded view. In this case, a lower bottle head part 15 is provided which consists of plastic and is fixed, ie immovably and non-rotatably mounted on the neck of a bottle (not shown) in the region of its pouring opening and in particular snapped on. The bottle head part 15 has a sleeve-shaped base body 16 which has inner fastening elements 26 (see FIGS. 3 and 4) for fastening the bottle head part to the bottle. Above the fastening elements, a dividing wall 27 is provided in the bottle head part 15, in which passage openings 28 are formed. When the bottle head part 15 ^' is mounted on the bottle, liquid from the inside of the bottle can be poured out only through the passage openings 28 on the bottle.

On the fastening elements 26 and thus the bottle facing away from the upper side of the partition wall 27, the bottle head part 15 has an axially upwardly extending, circular cylindrical sleeve-shaped projection 17, on the outer side of an external thread 18 is formed.

In the middle of the dividing wall 27 in the region of the passage openings 28, a positioning pin 30 projecting upwards freely is provided, and the dividing wall 27 forms a trough-shaped recess 31 in the region of the passage openings 28, which surrounds a circumferential groove formed on the upper side of the dividing wall 27 Immersion trough 29 is surrounded. To shut off the passage openings 28 in the partition wall 27 and thus to close the bottle, a valve body 19 is provided. The valve body 19 has a substantially plate-shaped base part 20, on the upper side facing away from the partition 27, an axially extending guide pin 21 is formed. The plate-shaped base part 20 has a cross-section which tapers conically towards its underside, ie in the direction of the dividing wall 27, which in its dimensioning is adapted to the shape of the trough-shaped depression 31 of the dividing wall 27 and can come into contact with it over a large area. As Figure 3 shows, the valve body 19 has at its lower, the partition 27 side facing a central recess 32 which can engage with the positioning pin 30 of the partition wall 27.

The valve body 19 is preferably made of a relatively heavy material such as glass, metal, stone, especially natural stone or granite or clay as a one-piece, monolithic component. Alternatively, it is also possible to produce the valve body 19 made of plastic and to complain by deposits and / or ballast parts. The relatively high weight of the valve body 19 ensures that the valve body 19 due to its own weight in a sealing manner with the trough-shaped depression 31 of

Partition wall 27 is in contact and thereby the passage openings 28 either directly seals or downstream of these forms a seal.

Above the partition wall 27 of the bottle head part 15 and above the valve body 19, a spout part 22 is arranged, which has a sleeve-shaped base body 23, on its outer side a circumferential structuring in Shape of a plurality of spaced vertical, upwardly in cross-section tapered ribs 24 has. In the upper, the partition 27 remote from the region of the base body 23 is a circular cylindrical, axially upwardly projecting, circumferential sleeve-shaped pouring crown 25 is formed.

As shown in Figures 3 and 4, the base body 23 has three vertically spaced apart adjacent peripheral walls 33, 34 and 35. The outer wall 35 carries on its middle wall 34 facing the inside of an internal thread 36 which is connected to the external thread 18 of the approach 17 of the bottle head part 15 is engaged. The projection 17 of the bottle head part 15 is arranged between the outer wall 35 and the middle wall 34 of the main body 23 of the spout part 22, wherein the central wall 34 ensures that the internal thread 35 remains in engagement with the external thread 18 of the bottle head part 15. The radially inner wall 33 of the base body 23 forms at its lower end an engagement ring 37, which can dive into the immersion groove 29 of the partition 27 under close fit.

In the inner wall 33 are passage openings 41, through which the liquid from the bottle with open bottle closure can flow into the interior of the pouring crown 25.

In the central region of the base body 23 of the spout part 22, a cup-shaped receptacle 38 is formed, which opens downwards, ie in the direction of the partition wall 27 and in its dimensions to the dimensions of the guide pin 21 of the valve body 19 is adjusted so that the management pin 21 of the valve body 19 is received and guided axially displaceable in the receptacle 38 under close fit. The receptacle 38 is integrally formed on the inner wall 33 of the Grundköpers 23 via a transverse wall 39.

The outer cap 11 covers in the assembled state both the bottle head part 15 and the spout part 22 and the valve body 19 located between these two parts.

The bottle head portion 15 is non-rotatably and immovably on the neck of a bottle in the region of the outlet opening. The outer cap 11 is axially non-displaceable, but freely rotatable on the bottle head part 15. The outer cap 11 has on its inside vertical guide grooves 40, in each of which one of the guide ribs 24 of the main body 23 of the Spout 22 engages axially displaceable. In this way, the spout part 22 is rotatable relative to the outer cap 11, but mounted axially displaceable.

FIG. 3 shows the initial state of the bottle closure 10 before it is opened for the first time. The valve body 19 is in a sealing manner on the trough-shaped depression 31 of the partition wall 27 and the positioning pin 30 engages in the lower recess 32 of the valve body. The spout part 32 is in its lower starting position, in which it engages with its engagement ring 27 at the lower end of the inner wall 33 in the submerged groove 29 of the partition wall 27 and on the transverse wall 39 exerts a compressive force on the base part 20 of the valve body 19 and this in addition in the trough-shaped depression 31 presses. As FIG. 3 shows, in this state the valve body 19 is completely closed by the spout part 22 and the partition wall 27. since and thus inaccessible, whereby manipulation of the bottle, in particular their refilling with an undesirable liquid, are reliably avoided.

The pouring crown 25 is located with its upper edge immediately below the predetermined breaking section 13 of the lid 12 of the outer cap 11.

To open the bottle cap 10, the user turns the outer cap 11 relative to the bottle head part 15. This rotational movement is transmitted via the engagement of the guide ribs 24 of the main body 23 of the spout 22 in the guide grooves 40 of the outer cap 11 on the spout part 22. This results in a relative rotation between the spout part 22 and the bottle head part 15. Since the bottle head part 15 is engaged via the external thread 18 with the internal thread 36 of the outer wall 35 of the spout part 22, the spout part 22 is thereby forced an axially upward movement, which causes the pouring crown 25 presses against the predetermined breaking portion 13 of the outer cap 11 and this destroyed and thereby completely dissolves the cover 12 of the outer cap 11. Upon further rotation of the outer cap 11, the spout portion 22 is further axially displaced upward until the spout 25 on the top of the outer cap 11 protrudes therefrom, as shown in Figures 4 and 5.

In this state, the spout part 22 is lifted from the base part 20 of the valve body 19, wherein the guide ^¬ pin 21 of the valve body 19, however, is still partially accommodated in the receptacle 38 of the Spout 22 slidably. The upward movement of the exit ßerteils 22 is limited by suitable stops between the spout part 22 and the outer cap 11. The bottle cap 10 is now basically open, but the valve body 19, due to its intrinsic weight, prevents liquid from evaporating from the bottle. Only when the user tilts the bottle, the valve body 19 lifts from the trough-shaped depression 31 of the partition wall 27, whereby the liquid from the interior of the bottle through the passage openings 28 in the partition wall 27 and the passage openings 41 in the inner wall 33 of the spout part 30th can get into the interior of the pouring crown 25.

After completion of pouring the bottle is again positioned in a conventional manner in a vertical orientation, whereby the valve body 19 due to its own weight with its bottom of the base 20 in the trough-shaped recess 31 applies to this. The user then turns the outer cap 11 in the opposite direction, thereby imposing a downward axial movement on the spout portion 22. Through this, the spout part 22 retracts the valve body 19 into the outer cap 11 until it is completely inside the outer cap 11. In this state, the transverse wall 39 of the Spout 22 presses the valve body 19 into the trough-shaped depression 31, whereby the sealing effect is increased. At the same time, the engagement ring 37 of the spout part 22 in turn dips into the submerged groove 29, as a result of which the valve body 19 is encapsulated in relation to the environment.

Claims

claims

A bottle cap (10) having a bottle head portion (15) attachable non-slidably and rotationally fixed to a bottle neck and having at least one passage (28) for liquid to be dispensed, and a valve body (19) located downstream of the bottle head portion (15). arranged and with the bottle head part (15) can be brought into sealing contact, characterized in that the valve body (19) is designed as a heavy-weight valve body and has a density p of p> l, 5g / cm ³ .

2. Bottle closure according to claim 1, characterized in that the valve body (19) has a density p of p> 2.0 g / cm ³ .

3. Bottle closure according to claim 1 or 2, characterized in that the valve body (19) has a density p of p> 2.5 g / cm ³ .

4. Bottle closure according to one of claims 1 to 3, characterized in that the valve body (19) consists at least predominantly of glass, metal, stone, granite or clay.

5. Bottle closure according to one of claims 1 to 4, characterized in that the valve body is formed as a one-piece, monolithic component.

6. Bottle closure according to one of claims 1 to 4, characterized in that the valve body (19) consists of a base element, are arranged on and / or in the ballast parts.

7. Bottle closure according to claim 6, characterized in that the base element consists of plastic.

Bottle closure according to one of claims 1 to 7, characterized in that an axially adjustable Bares spout part (22) is provided, by means of which the valve body (19) against the bottle head part (15) can be tensioned.

Bottle closure according to claim 8, characterized in that the valve body (19) has a guide pin (21), which is displaceably guided and received in a receptacle (38) of the spout part (22).

Bottle closure according to claim 8 or 9, characterized in that the valve body (19) by means of the spout part (22) and the bottle head part (15) is einkapselbar.