EP3976496A2

EP3976496A2 - Closure device for a container

Info

Publication number: EP3976496A2
Application number: EP20729050.3A
Authority: EP
Inventors: Martin Presche
Original assignee: RPC Bramlage GmbH
Current assignee: RPC Bramlage GmbH
Priority date: 2019-05-27
Filing date: 2020-05-27
Publication date: 2022-04-06
Anticipated expiration: 2040-05-27
Also published as: BR112021022150A2; US20220258936A1; CN114026028A; WO2020239834A2; WO2020239834A3; EP3976496C0; CA3139056A1; EP3976496B1

Abstract

The invention relates to a closure device (1) for a container (2) having a container opening (10), wherein the closure device (1) has a lid element (3) for closing the container opening (10), a chamber (4) assigned to the lid element (3) and an inner housing (5), wherein the chamber (4) and the inner housing (5) have closing means (V) and opening means that correspond to one another. The chamber (4) locks with the inner housing (5), the lock (6) with the inner housing (5) being offset radially inwards in respect of a vertical (x) of the closure device (1) over a greatest width (k) of the chamber (4) in the offset direction (L). According to the invention, in order to specify a closure device which allows emptying of the chamber as the lid element is removed in an easy-to-handle fashion, with further preferred favourable manufacturability of the closure device, the lock (6) in the vertical direction (M) is designed separately from a shoulder section (40) of the inner housing (5) formed on the base side under the lock (6).

Description

description

Closure device for a container

Field of technology

[0001] The invention first relates to a closure device for a container having a container opening, the closure _V orrichtung a lid member for closing the container opening, having a lid element conces- located chamber and an inner housing corresponding further wherein the chamber and the inner housing to each other Closure means and opening means, which interact with one another in such a way that a medium contained in the chamber can escape into the container due to a movement of the cover element relative to the inner housing, the chamber also having a cantilevered interior pointing into a container when in use , has ring-shaped locking edge encircling a central axis of the chamber, which cooperates with the inner housing in the locked state to close, the inner housing forming a chamber bottom bounded by the locking edge, the chamber also being locked to the inner housing, d ie latching with the inner housing with respect to a central axis of the closure _V verükalen orrichtung radially inwardly of changes is set numbers compared to a maximum in the direction of displacement width of the Kam.

[0002] Further, the invention relates to a closure device for a loading container having a container opening, the closure _V orrichtung a lid member for closing the container opening, having an associated lid element located chamber and an inner housing, further wherein the chamber and the inner housing to each other have corresponding closure means and opening means, which interact with one another in such a way that a medium contained in the chamber due to a movement of the Lid element can emerge into the container relative to the inner housing, the chamber also having a cantilevered, in the state of use, into a container interior pointing, ring-shaped around a central axis of the chamber umlau fenden locking edge, which cooperates with the inner housing in the locked state, the inner housing forms a chamber bottom bounded by the closure edge, the chamber further being composed of two parts, with a dividing plane which runs perpendicular to a vertical central axis of the closure device and the dividing plane enforces an overlapping section of a lower part of the chamber.

State of the art

[0003] Closure devices of the aforementioned type are known in the prior art. These serve to close a container and at the same time a chamber for the separate storage of liquid or powdered media, such as tea essences or the like, ready len so that they are not immediately when filling the container with the contents of the container, that is, for example Water, come into contact and / or mixed, but only at the moment in which the closure device is removed from the container. This is regularly the moment at which the contents of the container are to be consumed.

The publication WO 2007/129116 A1 relates, for example, to a closure device of the aforementioned type which, when a container closed with it is opened, releases an additional liquid located in the chamber into the container. The closure device has a cover element, a chamber and an inner housing. The inner housing has a discharge opening in which a closure means connected to the inner housing engages in a sealing manner. The closure means can be designed in the form of a plug his. The cover element and the inner housing can be connected to one another via a screw thread, wherein the cover element moves relative to the inner housing from a closed position in which the closure means closes the outlet opening of the chamber into a discharge position in which the closure means at least partially out of the The drain port is retracted, is liftable to provide a communication path from the chamber into the main liquid space of the container. The medium in the chamber before ratete can escape into the container, wherein it is mixed with the medium in the container. In addition, from DE 10 2018 105 321 Al, for example, it is known to train the closure means through the wall of the chamber as such, in particular through the area of the cantilevered, in the state of use pointing into the interior of the container, ring-shaped around the central axis of the Chamber surrounding locking edge. This closure edge interacts with the inner housing at least in the closed position. To release a bottom-side drain opening in the inner housing, the closure edge can be displaced into a drain position, in particular as a result of an axial or even rotational displacement of the closure edge relative to the inner housing.

SUMMARY OF THE INVENTION On the basis of the prior art described, the invention is concerned with the task of specifying a closure device which enables convenient emptying of the chamber during removal of the cover element, while the closure device can also be preferably manufactured more cheaply. [0007] One possible solution to the problem is according to a first Invention thoughts at a shutter _V orrichtung given, wherein, should be placed is that the latching separately in the vertical direction is formed by a bottom side formed under the latching shoulder portion of the Innenge- häuses is.

[0008] According to a further possible solution to the object, the aim can be that the two parts are welded to one another in the dividing plane, the welding being achieved by an additional section connected to the two parts and formed by overmolding .

Another solution to the problem provides that the two parts are welded together in the parting plane, the weld being covered to the outside by the upper part of the tank, the upper part and the lower part of the chamber also being plug-connected are. By the proposed neuarhge locking of the chamber with the

An improvement is achieved in the inner housing, in particular with regard to the emptying of the chamber in the course of removing the cover element. In this case, the inner casing is preferably above the shoulder portion in Wirkverbin dung with the container opening of the container, in particular in a Getting Connected Frictional _V, further optionally, as also preferable to form a seal against the container opening.

According to the proposed embodiment, there is also a favorable assembly of the chamber and inner housing and, moreover, the assembly formed from the inner housing and chamber with the container. In this case, the radial offset of the locking inwardly can be given by an amount which can correspond to about a sixth to a half, for example, about a quarter of the largest width of the chamber transversely to the vertical direction of the closure device. The welding can be achieved by means of a supplementary section which is connected to the two parts and formed by overmolding. The supplementary section can, as is also preferred, consist of the same plastic material as the two parts forming the chamber or of a plastic material that enables welding to the two parts. Thus, in a further embodiment, the supplementary section can contain polybutylene terephthalate, for example.

The encapsulation can, in addition to an optionally form-fitting connection between the supplementary section and the two parts of the chamber, advantageously also weld the two parts to the supplementary section, possibly also against each other, in the course of the encapsulation.

In a further embodiment, the two parts of the chamber can also be directly welded to one another in the dividing plane. Ultrasonic welding is preferred in this regard. Basically, the weld, optionally formed under

Use of a supplementary section to be covered on the outside by a section of the tank, in particular the upper part of the tank, so that the welding point (or the circumferential welding area) can be hidden from view from the outside on the closure device. The upper part can extend in the manner of an apron beyond the welding point, preferably vertically downwards with respect to a usual position of use.

The further preferred plug connection between the upper and lower part can be used in particular for a correct alignment of the parts relative to one another before and during a welding process. In addition, this can increase the stability in the welding area.

The features of the above-described independent claims are both essential in themselves and in any combination of importance, further features of an independent claim can be combined with the features of a further independent claim or with the features of several independent claims, further also with only individual features of one or more of the other independent claims.

A closure device can also be provided according to the invention, in which the latching in the vertical direction is separately formed from a shoulder section of the inner housing formed on the bottom under the latching and the two parts of the chamber are welded to one another in the plane of division, wherein the weld is achieved by a supplementary section that is connected to the two parts and formed by overmolding, or the weld is covered to the outside by the upper part of the tank, the upper part and the lower part of the tank also being plug-connected .

Further features of the invention are below, also in the description of the figures, often in their preferred assignment to the subject matter of claim 1 and / or any further independent claim or to Features of further claims explained. However, an assignment to only individual features of claim 1 and / or each further independent claim or the respective further claim or in each case can be of importance.

The composition of the chamber from two parts proves to be advantageous in terms of both production and handling. As a result of this configuration, a lower part of the two-part chamber can have constructive means which, if the chamber were made in one piece, would not be or would only be considerably more complex to produce. For example, the two parts of the chambers can be made of different materials. Also in the manufacture of the chamber, preferably from a plastic material, different plastics or plastic mixtures can be used, at least partially, but also different manufacturing processes, such as a plastic blow molding process for part of the chamber, for example a pot-like area of the chamber, and optionally a plastic injection molding process for producing the other part, which serves to fix the chamber as a whole on the inner housing and / or the cover element.

[0022] The lower part of the chamber, in particular, can also offer the closure means for interaction with the inner housing.

In this way, compared to a one-piece chamber preferably produced by the plastic blow molding process, more favorable, in particular significantly smaller, diameter dimensions can be achieved in the area of the closure means of the chamber, which furthermore has a favorable effect on the frictional forces between the chamber and the inner housing on the one hand and the inner case and a facing inner surface of a container neck on the other hand. The diameter ratio of the friction between the closure means and the inner housing and the inner housing and the facing inner wall of the Be hälterhalses According, the two-part production of the chamber in the Hin view of the necessary maintenance of the frictional engagement between the inner casing and container neck in the course of a first opening rotational movement of the closure _V or direction in a favorable manner to be influenced.

According to the two-part design of the chamber, a favorable arrangement of the latches between the inner housing and the chamber and between the chamber and the cover element on such different diameters can be achieved that their locking projections and locking recesses in a projection in a common plane transverse to the vertical axis without overlap run towards each other.

According to a further preferred embodiment, the latching between the inner housing and the chamber can be formed on a free-standing cylinder section of the inner housing. Such a free-standing cylinder section can, for example, starting from a root area of the shoulder section, extend freely in the axial direction into the circumferential wall of the otherwise bottom-side pot-shaped inner housing, more preferably in such a way that an end of the cylinder section pointing vertically upwards in the usual position of use preferably neither radially inside nor radially outside experiences a support.

In addition, the cylinder section described above can, according to a possible embodiment, extend essentially radially inward at a distance and at least approximately concentrically to a section of the shoulder section. In a further embodiment, the inner housing can at the same time have an internal thread for cooperation with an external thread of the container and a sealing lip which is spaced radially inward from the internal thread. As is also preferred, the sealing lip can run essentially concentrically to the area of the inner housing having the internal thread. Between the internal thread and the sealing lip, the container neck, on which the closure device is screw-connected, extends in the associated position. A free end of the sealing lip pointing in the axial direction of the closure device is preferably directed downwards in the usual position of use, correspondingly preferably directed opposite to the orientation of the free end of the cylinder section described above.

The sealing lip can be designed in radial overlap with the internal thread. In this regard, the sealing lip is completely covered by the area of the inner housing that has the internal thread.

[0029] The chamber with the cover element and the inner housing can also be interlocked on two planes that are separate from one another in relation to the state of use of the closure device in the vertical direction, with the formation of locking projections and recesses on the chamber, the cover element and the inner housing, wherein the latching with the Innenge housing with respect to the vertical central axis of the locking device is offset radially inwards compared to the latching with the cover element, the latching projections and the latching recesses of the planes running in a common plane transversely to the vertical axis without overlapping one another. This latching of the chamber to the inner housing and the cover element is also an improvement, in particular with regard to the emptying of the chamber in the course of removal of the cover element. The locking of the chamber with the inner housing is achieved in comparison to the locking of the chamber with the cover element with respect to the central axis on a significantly smaller transverse dimension, possibly diameter.

The latching areas can be arranged with such different transverse dimensions to the central axis, or on such different diameters with a rotationally symmetrical configuration of the locking device, that in a projection of the latches, in particular the latching projections and the latching recesses of the latches in a common plane running transversely to the central axis, these do not overlap.

[0032] In this case, the latches can furthermore be spaced apart from the central axis so differently with respect to the central axis that there is also a spacing between the latching areas in a projection into a common plane.

According to one possible embodiment, for example in a rotationally symmetrical embodiment of the closure device in which the central axis also forms a rotation axis, the locking between the chamber and the inner housing can be provided on a diameter circle whose diameter is 0.3 to 0.7 -Fax, further, for example, about 0.45 to 0.55 times the diameter of the latch between tween the chamber and the cover element can correspond. The relevant, in the plane diameter line it preferably stretches in the radial direction to the central axis viewed centrally between a radially inner or outer groove base of a locking recess and a radially outer or radially inner end of a locking projection cooperating with this locking recess.

[0035] By the arrangement and configuration of the catches also a convenient adjustability to manufacturer before Trains t significantly different diameters, in particular for an interlocking in the course of mounting the closure _V orrichtung achievable. According to a further possible embodiment, the locking projections can be formed on the lower part in the vertical direction when the closure device is used normally. This can be a hard plastic part, for example, which can also be manufactured using a plastic injection molding process. In addition, both parts of the chamber can consist of a hard plastic. Both parts can also consist of the same hard plastic or be made essentially of the same hard plastic. In this regard, polypropylene (PP), polyethylene (PE) or polyethylene terephthalate (PET) can be used as hard plastic material. Both parts can also contain polybutylene terephthalate (PBT).

[0039] The supplementary section can be designed in a ring shape, preferably completely encompassing the parts with respect to the central axis of the closure device, this ring-shaped enclosure preferably being given only in an area assigned to the dividing plane. In one possible embodiment, the supplementary section with reference to a vertical section, in which the vertical central axis is represented as a line, can be designed with a rear grip on the assigned sections of the parts. In this way, in addition to a weld, a form-fitting connection between the supplementary section and one or the other part, preferably to both parts of the chamber, is given.

[0041] In particular in the case of a filled closure device in which the stored medium is preferably received in the chamber with an overpressure, such an additional, possibly additional, form-fitting connection proves to be advantageous.

In addition, the supplementary section can also be formed essentially triangular or trapezoidal in relation to the vertical section. In the case of a triangular configuration, the supplementary section can be inserted like a wedge in the dividing plane between the mutually facing sections of the two parts and can preferably be welded to the two parts.

In an exemplary trapezoidal design of the supplementary section, for example, dovetail-shaped rear grips can result for the fastening areas of the two parts of the chamber. As is also preferred, the rear grips can be achieved in an advantageous manner by overmolding with the supplementary section material.

Thus, the supplementary section can further clamp the two parts with respect to the central axis or vertical axis in the radial direction. In addition, alternatively or also in combination with such a radial brackets also a bracketing of the two parts in the vertical direction can be achieved by appropriate formation of a we kenden in the vertical direction behind s handle.

[0046] With regard to the disclosure, the ranges or value ranges or multiple ranges specified above and below also include all intermediate values, in particular in 1/10 increments of the respective dimension, possibly also dimensionless. For example, the indication 0.3 to 0.7 times also includes the disclosure of 0.31 to 0.7 times, 0.3 to 0.69 times, 0.31 to 0.69 times etc. This disclosure can serve, on the one hand, to delimit a specified range limit from below and / or above, alternatively or additionally but to reveal one or more singular values from a respective specified range.

Brief description of the drawings

The invention is explained below with reference to the accompanying drawing, which however merely represents exemplary embodiments. A part that is only explained with reference to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the special features highlighted there is thus described as an existing part in any case for this further exemplary embodiment. The drawing shows:

Fig. 1 shows the closure device in a longitudinal sectional view when arranged on a container, the closure position be taken;

Fig. 2 is a cutout representation of a chamber bottom area, be relevant an alternative embodiment; 3 shows a schematic representation of a projection of two catches in a common plane;

4 shows the enlargement of the area IV in FIG. 1; FIG. 5 shows the section along the line V-V in FIG. 1; FIG. 6 shows a representation corresponding to FIG. 4, but regarding the discharge position; FIG.

7 shows the section along the line VII-VII in FIG. 1;

8 shows the closure device in longitudinal section, relating to a

Exploded view of a tank, a cover element and an inner housing of the closure device;

9 shows the inner housing in a perspective individual representation;

10 shows the cover element in a perspective individual illustration;

11 shows the enlargement of the area XI in FIG. 1;

FIGS. 12-16 each essentially correspond to FIG. 11

Illustration, but relating to other embodiments;

17 shows a detailed illustration corresponding to FIG. 11 in a further embodiment; 18 shows an illustration according to FIG. 1, relating to a further embodiment;

19 shows the enlargement of the area XIX in FIG. 18;

FIG. 20 shows a further embodiment in a representation according to FIG

Figure 1;

21 shows a schematic representation of an arrangement in the course of a

Ultrasonic welding of two chamber parts of the device according to Figure 20;

22 shows the enlargement of the area XXII in FIG. 21; 23 shows a representation corresponding to FIG. 22, but according to

Carrying out the ultrasonic welding process;

24 shows the inner housing of the embodiment according to FIG. 21 in a perspective individual illustration;

25 shows a representation essentially corresponding to FIG. 24, but omitting a sealing element.

Description of the embodiments

A closure device 1 for a container 2 is shown and described, initially with reference to FIG. 1, the closure device 1 essentially having a cover element 3, a chamber 4 and an inner housing 5, the chamber 4 above a (first) catch 6 is snap-connected to the inner housing 5. The chamber 4 is preferably composed of two parts len 8, 9 composed, which parts 8, 9 in a perpendicular to a vertical axis x extending dividing plane E are connected to each other.

FIG. 1 further shows an upper portion of the container 2, here for example in the form of a beverage bottle, on the container opening 10 of which the closure device 1 is arranged.

The closure device 1 is located relative to the container 2 in a position which closes the container opening 10 in a fluid-tight manner, the closure device 1 being screwed onto the container 2 in the usual manner so that the container opening 10 is closed. In this state, the container 2 can be stored for a long time without the contents being able to escape from the container 2. To open the container 2, the closure device 1 is unscrewed from the Behäl ter 2 in the usual manner, so that the container opening 10 is finally completely exposed. The closure device 1 has a chamber 4 for the separate storage of, for example, liquid or powdered media, which are only released to the contents of the container 2 at the moment in which the closure device 1 is removed from the container 2.

The chamber 4 can, as also shown and preferably, consist essentially of two parts 8, 9. Both parts 8, 9 can be made from the same material, in particular from the same hard plastic, such as PE, PET or PP, and according to a possible configuration, both parts can also be made entirely of PBT or have parts of PBT can. With reference to the usual position of use of the closure device 1, in which the axis x extends essentially vertically, the upper part 8 can also be produced in a plastic injection blow molding process, alternatively in a plastic injection molding process. The lower part 9 of the chamber 4 in this regard can, as also before given, be produced in the plastic injection molding process.

In this case, the upper part 8 can also have a pot-shaped shape, with an overhead arrangement being provided with regard to the pot shape. A connection to the lower part 9 is preferred along the edge region of the upper part 8 surrounding the downwardly pointing pot opening.

In this context, a permanent, operationally and also by the user not releasable, in particular not non-destructively releasable connection is preferred. Furthermore, a pressure-resistant connection is also preferred in this regard, in particular when a medium is received in the chamber 4 with a pressure that is higher than the ambient pressure.

The lower part 9 forms a preferably central outlet connection 11.

According to the illustrations, the inner housing 5 can be shaped like a cup, with a circumferential cup wall and a collar 12 for support on the container edge surrounding the container opening 10. A sealing lip 13 can be formed on the underside of the inner housing collar 12 all the way round. In the assignment position according to FIG. 1, this acts with the container wall surrounding the container opening 10. On the bottom side, a chamber bottom 14 is formed, which goes all the way around its entire circumference into a channel 15. With reference to the sectional view in FIG. 1, this channel 15 is formed by a radially inner channel side wall 16 and a radially outer channel side wall 17 and by a Channel bottom 18 limited.

The radially inner side wall 16 merges on the foot side into the channel bottom 18 and on the head side into the chamber bottom 14, which is axially spaced from the channel bottom 18. As also shown, the chamber bottom 14 can run essentially transversely to the vertical axis x, further if necessary in a parallel alignment to the channel bottom 18.

The radially outer channel side wall 17 can essentially form the housing wall of the inner housing 5.

In particular the surface of the channel bottom 18, but also preferably the surface of the radially inner channel side wall 16 facing into the inner space and possibly also, as shown, the surface of the chamber bottom 14 facing the chamber 4, as can also be preferred , be covered by a soft plastic layer 19. This can, as is also preferred, be divided together with the inner housing 5 in the two-component injection molding process. Alternatively, the soft plastic layer 19 can be produced separately as a pot-like part and, for example, can be locked in place on the inside of the Innengehäu ses 5.

According to the embodiment shown in FIG. 25, ribs 45 which are directed vertically outwards and run in the axial direction can be formed around the channel side wall 16, which (additionally) have a shape. Provide final connection of the inner housing 5 with the soft plastic layer 19 in order circumferential direction.

FIG. 2 shows an alternative embodiment in which the chamber floor 14 is not covered by the soft plastic layer 19. The latter extends only in the area of the channel 15, essentially lining it.

A thermoplastic elastomer (TPE), for example, can be used to produce the soft plastic layer 19.

As can also be seen in particular from the illustration in Figure 1, the chamber bottom 14 can centrally have an opening 20 covered by the soft plastic layer 19 in the direction of the interior of the chamber, via which before the closure device 1 is placed on the container 2 Proper filling - in particular pressure filling - the chamber 4 can be checked.

On the bottom side of the channel 15, there is also a drain opening 21 which penetrates both the channel bottom 18 and the section of the soft plastic layer 19 that covers the channel bottom 18. This can, as is also preferred, viewed in a plane transverse to the vertical axis x, have a circular ring-shaped circumferential opening edge edge, optionally with a diameter that can correspond to the radial width of the channel 15 between the radially inner channel side wall 16 and the radially outer channel side wall 17. More preferably, the channel 15 can have only one such drain opening 21.

The soft plastic layer 19 forms a sealing element 22 for interaction with a closure means V, which in the illustrated embodiment shape is essentially formed by the stopper, in particular formed by the wall of the outlet nozzle 11.

The outlet nozzle 11 extends essentially in the manner of a circular cylinder, with the free, correspondingly ring-shaped circumferential end pointing downward in the normal manner in use, forming the closure means V, dipping into the channel 15 of the inner housing 5.

The closure means V, here correspondingly the ring-shaped end region of the drainage connection 11, is permanently seated in the sealing element 22, here the channel 15, and is accordingly preferably not shifted relative to this in the direction of the screw axis x. There is preferably only a displacement of the closure means V relative to the sealing element 22, in particular to the soft plastic layer 19, in the circumferential direction, this for example abschlagbe bordered over an angle of further, for example approximately 180 degrees.

The closure means V can here have an outlet formation 23, for example in the form of a groove which is open at the edge radially inward in the direction of the radially inner channel side wall 16 and axially downward in the direction of the outlet opening 21. In the closed position according to the representations in FIGS. 1, 4, 18 and 20, this can be aligned offset by approximately 180 degrees to a discharge recess 24 formed in the area of the inner channel side wall 16 in the direction of the channel 15 Area of the soft plastic layer 19 is formed.

This output recess 24 can also be formed in the form of a groove, in particular in the form of a groove running in the axial direction. Furthermore, according to the illustrated embodiments, this output expansion tion 24 axially spaced from the discharge opening 21 in the transition from the inner ren channel side wall 16 in the chamber bo the 14 be provided.

Correspondingly, there is a partial radial widening of the channel 15 in the area of the discharge recess 24. As a result of the rotational displacement, the plug-shaped closure means V, sitting in the channel 15, is rotated into the outlet position, for example according to FIG. 6, in which the discharge formation 23 and the Output recess 24 are brought into a matching alignment. In the axial direction, the groove-like output formations are superimposed and the output formation 23 is assigned to the drain opening 21, so that the output formations form the flow path for dispensing the medium in the chamber 4 through the drain opening 21 into the interior of the container.

As can also be seen from the illustration in FIG. 6, an alternating outlet profile of the medium stored in the chamber 4 can result in this outlet position in the direction of the vertical axis x. As preferred and shown, a course change from radially inside to radially outside can result, whereby a favorable, possibly delayed outlet of the medium into the container 2 can be achieved.

The relative rotation of the chamber 4 provided with the closure means V to the inner housing 5 is preferably limited by a stop. For this purpose, for example, to the chamber 4, for example. Radially outwardly at the Ablassstut zen 11, a radial projection be formed 25, which can act 26 and 27 of the inner housing ogether 5 _Z with correspondingly positio ned attacks (see Figure 5 and Figure 25). A rotation of the chamber 4 or the cover element 3 connected non-rotatably to the chamber 4 in the embodiment according to FIGS. 1 to 16 beyond the stop-limited open position for draining the medium stored in the chamber 4 into the interior of the container leads in the usual way for completely unscrewing the closure device 1 from the container 2, corresponding to the complete exposure of the container opening 10.

The non-rotatable connection between chamber 4 and cover element 3 can be provided by engagement on the outside of the wall on chamber 4, in particular on lower part 9, with wing-like, radially outwardly projecting catch ribs 28 that engage in corresponding catches 29 of cover element 3 can (compare in particular Figure 7).

The driving ribs 28 can, as further preferably also the above-described radial projection 25, be formed in one piece and made of the same material with the lower part 9 of the chamber 4 and preferably manufactured using the plastic injection molding process.

In addition, the lower part 9, viewed in the axial direction, can have a locking projection 30, which is preferably ring-shaped with respect to the vertical axis x, between the end region of the outlet nozzle 11, which essentially forms the closure means V, and the region having the radial projection 25. This locking projection 30 engages in a groove-like locking recess 31 formed on the inside of the circumferential inner housing wall to form the (first) locking 6. In addition to the (first) latching 6 formed in this way, a rotary bearing for the chamber 4, in particular its lower part 9, can also be provided on the inner housing 5.

Compared to a largest width k of the chamber 4, measured transversely to a vertical direction M given by the alignment of the vertical axis x, which according to the illustrated embodiments can result in the region of the part 8, the latching 6, as well as preferably be offset radially inward in a displacement direction L Ver. A dimension in the area of the latch 6, also viewed transversely to the vertical direction M, can correspond to approximately 0.4 to 0.8 times, further approximately 0.5 to 0.6 times the above-described width k of the chamber 4 .

According to the embodiments shown in FIGS. 18 to 25, the chamber 4 can essentially only have this one latch 6 between the chamber 4 and the inner housing 5. In this case, as is also preferred, this latch 6 can be separate in the vertical direction M from a shoulder portion 40 of the inner housing 5 formed on the bottom under the latch 6 (compare FIGS. 18 and 25).

This shoulder section 40 connects on the outside in the area of the upper end of the pot-like circumferential channel side wall 17 and runs in an upward curve at approximately parallel spacing from the sealing lip 13 up to the collar 12, which runs essentially transversely to the vertical axis x.

About the root area of the shoulder section 12 on the gutter side wall 17 vertically upwards out, a free-standing cylinder section 42 connects, on the radially inwardly facing wall of the locking recess 31, for example in the form of a circumferential groove, is formed. The cylinder section 42 ends - viewed from the channel bottom 18 - at a distance in front of the plane given by the collar 12.

Correspondingly, when the chamber 4 is rotated relative to the inner housing 5 to release the drain opening 21, a circumferential friction surface between the lower part 9 of the chamber 4 and the inner housing 5 can result, in particular in the area of interaction between the locking projection 30 and the locking recess 31 , in addition, if necessary, but also between the free end of the outlet nozzle 11 forming the closure means V and in particular the radially outer channel side walls 17. These friction surfaces extend at least approximately in the area of the same diameter dimensions a, which diameter dimension a is approximately 0.4 to 0, 6 times the free inner diameter b in the region of the container opening 10 can correspond.

The inner housing 5 can also be frictionally held on the container 2 in the area of the container opening 10, in particular as a result of the sealing lip 13 resting on the facing inner side in the area of the container opening 10 (see FIG. 1). As a result of the above-described arrangement and configuration of the drain nozzle 11 as well as the first latching 6 between the inner housing 5 and the chamber 4, a favorable ratio can result in terms of the frictional forces, so that in particular with a first twist the chamber 4 together with the Cover element 3 by 180 degrees in the position releasing the outlet opening 21, the frictional force between the inner housing 5 and the container 2 is not or not substantially influenced.

The friction surface between the inner housing 5 in the area of its sealing lip 13 and the inner wall of the container 2 in the area of the container opening 10 preferably extends over the above-described diameter b, on which the second latch 7 is essentially also located may extend between the chamber 4 and the cover element 3 substantially.

In the embodiments shown in FIGS. 1 to 16, in addition to the first latch 6, a second latch 7 can be provided between the inner housing 5 and the cover element 3. This second latching 7 can be achieved due to the formation of a further latching projection 32 on the chamber 4, in particular on the lower part 9. This latching projection 32 can, as also shown in FIG. 9, be configured as a radial projection in the area of the driving ribs 28. On the side of the cover element, a latching recess 33 can be provided further below the driving receptacles 29 for the driving ribs 28. This latching recess 33 of the embodiment shown can, as also shown, be exposed vertically downwards.

The latching projection 32 as well as the latching recess 33 can, as is also preferred, be designed to be circumferential concentric to the axis x.

As can also be seen in particular from the sectional view in FIG. 1, the pairs of locking projections 30 and 32 and locking recesses 31 and 33 extend at different radial distances from the vertical axis x, the locking projection 32 and the locking recess 33 of The upper, second latch 7 have a greater radial spacing than the latch pair of the first latch 6.

In a possible projection of the latching pairs of the first and second latching 6, 7 in a common plane running transversely to the vertical axis x, there is no overlap of the latching projections 30 and 32 as well as the latching recesses 31 and 33. Rather, these are spaced apart from one another in the radial direction.

A line running concentrically to the vertical axis x and centrally penetrating the respective catch 1 or 2 has a diameter in the area of the first catch 6 that is about 0.4 to 0.6 times the equivalent circular line in the area the second latch 7 can speak ent.

As a result of the latching described with reference to the first exemplary embodiment, favorable assembly can be achieved. This is shown schematically in FIG. The parts 8 and 9 joined together to form the chamber 4 can be inserted into the cover element 3 from above with reference to a normal position of use and latched to it (see arrow c), while the inner housing 5 is inserted into the cover element 3 in the opposite direction from below is introduced and is connected to the chamber 4 in the area of the first latch 6 (see arrow d).

[0099] In this assembly position, the closure _V can be filled orrichtung 1 loading.

The latches 6 and 7 are, as can be seen, in the area of different Licher, axially spaced planes F and G, such that when the latches 6 and 7 are projected into a common plane H oriented transversely to the axis x no overlap of the locking conditions 6 and 7 is given. Rather, there is a distance t between the radially outer locking mechanism 7 and the radially inner locking mechanism 6 (see FIG. 3). FIGS. 11 to 17 show different embodiments with respect to the connection of the two parts 8 and 9 to form the chamber 4.

A welded connection is preferably provided in each case. This can initially be sufficient, for example, as a result of ultrasonic welding, possibly with a direct connection of the two parts 8 and 9 in the area of a free end edge 34 of the upper part 8 and an assigned base area 35 of the lower part 9.

According to the embodiment in Figure 11 in the edge area 34 of the upper part 8 a cross-sectionally outer, circumferential wedge surface can be freeschnit th, for receiving a supplementary section 36 produced by overmolding the area. The supplementary section 36 is preferably made of the same plastic material as the two parts 8 and 9. In the course of production or overmolding with the supplementary cut material, a fusion or welding is achieved in the area of the contact surfaces.

The supplementary section 36 can form a connecting weld seam in the broader sense, wherein the supplementary section 36 can be designed as a whole ring-shaped.

In alternative embodiments, the supplementary section with reference to a vertical section, as shown, can be designed with a rear grip, in particular with a rear grip 37 acting in the radial direction.

According to the illustration in FIG. 12, this can be given, for example, by a design of the supplementary section 36 with a trapezoidal cross-section, with an approximately dovetail-shaped wedge lock as a result. bond is achievable. Correspondingly, in addition to a welded connection, there is also a form-fit connection - here acting in the radial direction.

The rear grip 37 can only be achieved with respect to one of the parts 8 or 9, for example according to the illustration in FIG. 14 in connection with the lower part 9, while with respect to the other part (here the upper part 8 ) there can be no such hindrance.

Alternatively or in addition to such a radial rear handle 37, an axially acting rear handle 38 can also be provided so that the supplementary section 36 braces the two parts 8 and 9 together in the vertical direction (see Figures 15 and 16).

An axial rear grip 38 can be provided solely in the base area 35 as shown in FIG. Alternatively, as shown in FIG. 16, an additional axial rear grip 38 'can be provided in the edge area 34 of the upper part, whereby a secure clamping can be achieved.

An axial rear grip 38 formed solely in the edge area 34 of the upper part 8 can result in an advantageous connection in conjunction with a radial rear grip 37 in the base area 35 (see FIG. 14).

As can further be seen in particular from the representations in Figures 12 to 16, the supplementary section 36 can apply radially outward with reference to the cross-sectional view and protrude accordingly over the facing outer edge of the upper and lower parts 8 and 9 . This can result in an annular collar 39 lying on the outer wall of the chamber 4 and preferably encircling it. The weld seam formed indirectly by the supplementary section 36 can also be encompassed radially on the outside and circumferentially by a collar 46 of the cover element 4 protruding axially upward. The weld seam is covered by this.

According to the embodiment shown for example in FIG. 1, the cover element 3 can have an internal thread 43 which cooperates with an external thread 44 of the container 2 and which is preferably designed in radial overlap with the sealing lip 13. The cover element 3 encompassing the container neck serves as a gripping element to open the Behäl age 2, with the rotary movement of the cover element 3 initially by dragging a rotary drive of the chamber 4 relative to the inner housing 5 and when the rotary stop is reached - with the medium being released in the container 2 - also the inner housing 5 is unscrewed, so that from closing a unit of chamber 4, inner housing 5 and cover element 3 can be removed from the container 2.

Alternatively, the screw connection between the container 2 and the closure device 1 can be given via the inner housing 5 (compare FIGS. 18 and 20). For this purpose, the inner housing has on one of the radially outer end of the collar 12 protruding, coaxially to the vertical axis x and in radial overlap to the sealing lip 13 from directed jacket section 47 on the internal thread 43, for interaction with the external thread 44 of the Container 2.

This jacket section 47 is in the unused position according to Figures 18 and 20 - preferably completely - encompassed by a cylinder jacket 48 of the chamber 4. In particular, this cylinder jacket 48 is integrally formed on the part 9 and more preferably of the same material. The cylinder- jacket 48 encompasses the jacket section 47 at a distance and free of any entrainment.

The cylinder jacket 48 is preferably enlarged in diameter compared to the outer diameter of the chamber 4 in the region of the part 8, so that in the transition there is a radial step to the outside, in which step region the connection of the parts 8 and 9 is preferably made.

In the embodiment illustrated with reference to FIGS. 18 and 19, a supplementary section 36 supported on the foot side of the part 8 and supported on the step described above can also be used here.

According to the embodiment in FIGS. 20 to 25, parts 8 and 9 can also be welded directly, in particular ultrasonic welding.

For this purpose, for example, the upper part 8 can have a circumferential, in cross-section, for example, wedge-like material excess 50 on its downward in the direction of a welding collar 49 formed by the base region 35 ge directed edge, which melts in the course of the ultrasonic welding process and serves to form the weld seam (compare FIGS. 21 to 23). For this process, for example, the part 8 of the chamber 4 is placed in an overhead position in a shape-adapted anvil 51, the part 9 is positioned accordingly and the ultrasonic welding is carried out in a targeted manner in the area of the circumferentially provided excess material 50 via a sonotrode 52 (see FIG. 21).

The resulting direct weld connection, in particular the weld seam provided thereby, is preferably covered radially outward by an axial collar of the upper part 8 of the chamber 4 forming the jacket section 47 of the inner housing 5 and forming the cylinder jacket 48.

Preferably, regardless of the type of welding connection, the dividing plane E penetrates between the parts 8 and 9 of the chamber 4 an overlapping section 41 of the lower part 9 of the chamber 4. This overlapping section 41 is preferably located radially on the inside at the end region of the upper part 8 facing it and gives it a radial support, which is particularly advantageous in the course of the welding process. The overlapping section 41 is used to connect the parts 8 and 9 with a plug connection.

As shown, for example, on the basis of the illustration in FIG. 17, in addition to the overlapping section 41 described, a further overlapping section 41 'can also be provided radially outside of the edge region 34 of the upper chamber part 8, so that the base region 35 ge formed welding collar 49 of the lower chamber part 9 an insertion groove 55 for the downwardly facing edge region 34 of the part 8 sets. The dividing plane E can, as is also preferred, pass through both the radially inner overlapping section 41 and the radially outer overlapping section 41 '.

Such an optionally provided radially outer overlapping section 41 'can, as shown for example in Figure 19, have radial openings 56 so that there are several bridge-like extending overlapping areas circumferentially. Material of the supplementary section 36 can pass through the radial openings 56 between the parts 8 and 9 of the chamber 4 in the course of the encapsulation of the welding area. The weld connection is supported by the additional form fit. In the embodiments of Figures 18 to 25, the cylinder jacket 48 of the chamber 4 is used as a gripping element to open the container 2. Zufol ge rotation of the chamber 4, this is relocated relative to the inner housing 5 in the position releasing the medium in chamber 4 , whereupon the inner housing 5 is dragged along in the direction of rotation by the rotary stop, which causes a screw displacement of the closure device 1 overall relative to the container 2.

In the screw solution from the container 2, a tamper-evident ring 53 is torn off regardless of the described embodiments. Also can, as shown using the example in Figure 18, in the

Chamber 4, for example in a funnel-like inlet of the lower part 9 in the direction of the channel 15, an eccentric pin 54 oriented essentially in the vertical direction M can be molded on. Such a pin can have a favorable effect on the flow behavior of the medium when it leaks out of the chamber 4, for example as a result of a turbulence of the medium being impressed on it.

In the outlet position, there is also a reciprocal course in accordance with the embodiment shown in FIG. 6.

The above explanations serve to explain the inventions covered by the application as a whole, which also develop the state of the art independently at least by means of the following combinations of features, whereby two, more or all of these combinations of features can also be combined, namely: [00129] A shutter _V orrichtung, which is characterized in that the latching is separately in the vertical direction M 6 is formed by a bottom side formed under the latching shoulder 6 of the inner housing portion 40. 5 A closure device, which is characterized in that the two parts 8, 9 are welded to one another in the division plane E, the welding being achieved by a supplementary section 36 formed by overmolding and connected to the two parts 8, 9 .

A closure device, which is characterized in that the two parts 8, 9 are welded together in the dividing plane E, the weld being covered to the outside by the upper part 8, wherein further the upper part 8 and the lower part 9 of the chamber 4 are otherwise steckver related.

A locking device, which is characterized in that the latch 6 is formed on a free-standing cylinder section 42 of the inner housing 5.

A closure device, which is characterized in that the inner housing 5 at the same time has an internal thread 43 for cooperation with an external thread 44 of the container 2 and a sealing lip 13 which is spaced radially inward from the internal thread 43.

A closure device, which is characterized in that the sealing lip 13 is formed in radial overlap with the internal thread 43. A closure device, which is characterized in that the chamber 4 with the cover element 3 and the inner housing 5 on two to one another, based on the state of use of the closure device 1 in the vertical direction M, separate planes F, G with the formation of locking devices. cracks 30, 32 and latching recesses 31, 33 to be radially offset to the chamber 4, the lid member 3 and the inner casing 5 is locked, wherein the locking 6 to the inner casing 5 with respect to the vertical center axis x of the closure _V or device 1 inside is opposite the latching 7 with the cover element 3, the latching projections 30, 32 and the latching recesses 31, 33 of the planes F, G extending transversely to the vertical axis x without overlapping when projected into a common plane H.

A closure device, which is characterized in that the locking projections 30, 32 are formed on the lower part 9 in the vertical direction. A closure device which is characterized in that both

Parts 8, 9 consist of a hard plastic.

A closure device, which is characterized in that both parts 8, 9 contain polybutylene terephthalate.

A closure device, which is characterized in that the supplementary section 36 is designed in an annular manner.

A closure device, which is characterized in that the supplementary section 36 is designed with a rear grip 37, 38 in relation to a vertical section in which the vertical central axis x is shown as a line. A closure device, which is characterized in that the supplementary section 36 is formed essentially three corner-shaped or trapezoidal with respect to the vertical section.

A closure device, which is characterized in that the supplementary section 36 clamps the two parts 8, 9 together in the vertical direction.

All the features disclosed are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby also includes the full content of the disclosure content of the associated / attached priority documents (copy of the previous application), also for the purpose of including features of these documents in the claims of the present application. The subclaims characterize, even without the features of a referenced claim, with their features independent inventive developments of the prior art, in particular in order to make divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or more of the features provided in the above description, in particular provided with reference numbers and / or specified in the list of reference numbers. The invention also relates to design forms in which some of the features mentioned in the preceding description are not implemented, in particular insofar as they are recognizable for the respective intended use or can be replaced by other technically equivalent means. List of reference symbols

1 locking device 39 ring collar

2 container 40 shoulder section

3 cover element 41 overlap section

4 Chamber 41 'overlap section

5 inner housing 42 cylinder section

6 Latch 43 internal thread

7 Latch 44 external thread

8 part 45 rib

9 part 46 collar

10 container opening 47 shell section

11 Drain port 48 cylinder jacket

12 collar 49 welding collar

13 Sealing lip 50 excess material

14 Chamber bottom 51 anvil

15 Channel 52 Sonotrode

16 Channel side wall 53 Tamper evident ring

17 gutter side wall 54 tenons

18 Channel bottom 55 plug-in groove

19 soft plastic layer 56 radial opening

20 opening

21 Drain hole a diameter

22 sealing element b diameter

23 Output loft c arrow

24 Output recess d arrow

25 radial projection k width

26 Stop t distance

27 Stop x vertical axis

28 take-away rib

29 Driving device E Partition level

30 locking projection F level

31 locking recess G level

32 locking projection H common plane

33 Latch recess L offset direction

34 Edge area M vertical direction

35 Base area V locking means

36 supplementary section

37 Behind them

38 Behind them

38 'rear grip

Claims

Expectations

Closing device (1) for a container (2) with a container opening (10), the closing device (1) having a cover element (3) for closing the container opening (10), a chamber (4) assigned to the cover element (3) ) and an inner housing (5), the chamber (4) and the inner housing (5) having mutually corresponding locking means (V) and opening means which interact with one another so that one contained in the chamber (4) Me medium can escape into the container (2) due to a movement of the cover element (3) relative to the inner housing (5), the chamber (4) also having a cantilevered ring around a central axis of the chamber, pointing into a container inside when in use (4) has circumferential closure edge which cooperates with the inner housing (5) in the closed state to close, the inner housing (5) forming a chamber bottom (14) delimited by the closure edge, the chamber (4) m it is latched onto the inner housing (5), the latching (6) with the inner housing (5) being offset radially inward with respect to a vertical center axis (x) of the locking device (1) compared to a largest width in the displacement direction (L) ( k) the chamber (4), characterized in that the latch (6) in the vertical direction (M) is formed separately from a shoulder section (40) of the inner housing (5) formed on the bottom under the Verras device (6).

Closing device (1) for a container

(2) with a container opening (10), the closure device (1) having a cover element (3) for closing the container opening (10), a chamber (4) assigned to the cover element (3) and an inner housing (5) , the chamber (4) and the inner housing (5) also corresponding to one another Have closure means (V) and opening means, which interact with one another so that a medium contained in the chamber (4) due to a movement of the cover element

(3) relative to the inner housing (5) can exit into the container (2), the chamber (4) also having a cantilevered closure edge, which in the state of use points into a container inside, and encircles a central axis of the chamber (4) , which cooperates with the inner housing (5) in the closed state to close, the inner housing (5) forming a chamber bottom (14) delimited by the closing edge, the chamber (4) also being composed of two parts (8, 9) , with a dividing plane (E) which runs perpendicular to a vertical central axis (x) of the closure device (1) and the dividing plane (E) passes through an overlapping section (41) of the lower part (9) of the chamber (4), or Closure device (1) according to claim 1, characterized in that the two parts (8, 9) are welded to one another in the dividing plane (E), the welding being carried out by a connection with the two parts (8, 9) Overmolding formed eten he supplementary section (36) is reached.

Closure _V orrichtung according to the features of the preamble of An entitlement 2 or any one of the preceding claims, characterized in are that the two parts (8, 9) MITEI in the division plane (E) welded Nander, wherein the welding the outside of upper part (8) is covered, wherein further the upper part (8) and the unte re part (9) of the chamber

(4) are otherwise plug-connected.

Closure device according to one of the preceding claims, characterized in that the latching (6) is formed on a free-standing cylinder section (42) of the inner housing (5).

5. Closure device according to one of the preceding claims, characterized in that the inner housing (5) at the same time has an internal thread (43) for cooperation with an external thread (44) of the container (2) and a sealing lip (13) which radially inward is spaced from the internal thread (43).

6. Closure device according to one of the preceding claims,

characterized in that the sealing lip (13) is designed in radial overlap with the internal thread (43).

7. Closure device according to one of the preceding claims,

characterized in that the chamber (4) with the cover element (3) and the inner housing (5) are formed on two planes (F, G) that are separate from one another, based on the state of use of the closure device (1) in the vertical direction (M) of locking projections (30,

32) and locking recesses (31, 33) on the chamber (4), the cover element (3) and the inner housing (5), the locking (6) with the inner housing (5) with respect to the vertical center axis (x ) the locking device (1) is offset radially inward relative to the latching (7) with the cover element (3), the latching projections (30, 32) and the latching recesses (31, 33) of the planes (F, G) in a project - tion in a common plane (H) transversely to the vertical axis (x) without overlapping one another.

8. Closure device according to one of the preceding claims,

characterized in that the locking projections (30, 32) are formed on the lower part (9) in the vertical direction.

9. Closure device according to one of the preceding claims, characterized in that both parts (8, 9) consist of a hard plastic.

10. Closure device according to one of the preceding claims, characterized in that both parts (8, 9) contain polybutylene terephthalate.

11. Closure device according to one of the preceding claims, characterized in that the supplementary section (36) is designed ring-shaped.

12. closure _V orrichtung according to any one of the preceding claims, characterized in that the supplementary portion (36) with respect to a vertical section in which the vertical center axis (x) never is as Li, is formed with a rear handle (37, 38).

13. Closure device according to one of the preceding claims, characterized in that the supplementary section (36) is essentially triangular or trapezoidal with respect to the vertical section.

14. Closure device according to one of the preceding claims, characterized in that the supplementary section (36) clamps the two parts (8, 9) together in the vertical direction.