Closure device for a container

Abstract

A closure device for a container having a container opening has a lid element for closing the container opening, a chamber associated with the lid element, and an inner housing. The chamber and the inner housing also have closure and opening devices corresponding to one another and which interact with one another so that a fluid housed in the chamber can exit into the container due to a movement of the lid element relative to the inner housing. The chamber has a free-projecting closure edge annularly surrounding a central axis of the chamber which, when in use, is positioned in the inner part of the container, and which interacts with the inner housing in the closed state. The inner housing forms a chamber base delimited by the closure edge. The chamber base is formed such that it slopes towards a free end of the closure edge.

1 - 10 . (canceled) 
     
     
         11 . A closure device ( 1 ) for a container ( 5 ) having a container opening ( 6 );
 wherein the closure device ( 1 ) has a lid element ( 7 ) for closing the container opening ( 6 ), a chamber ( 2 ) associated with the lid element ( 7 ) and an inner housing ( 8 );   wherein the chamber ( 2 ) and the inner housing ( 8 ) furthermore have closure means and opening means that correspond to one another and interact with one another in such a way that a medium (M) housed in the chamber ( 2 ) can exit into the container ( 5 ) due to a movement of the lid element ( 7 ) relative to the inner housing ( 8 );   wherein the chamber ( 2 ) furthermore has a free edge region that in the usage state points into a container interior and annularly extends around a central axis (x) of the chamber ( 2 );   wherein said free edge region has a closure edge ( 12 ) that in the closed state interacts with the inner housing ( 8 ) in a closing manner;   wherein the inner housing ( 8 ) forms a chamber base ( 18 ) that is delimited by the closure edge ( 12 ) and the chamber base ( 18 ) is formed such that it slopes toward a free end of the closure edge ( 12 ); and   wherein the chamber base ( 18 ) is realized in the form of an oblique plane that in a cross section extends beyond the central axis (x).   
     
     
         12 . A closure device ( 1 ) for a container ( 5 ) having a container opening ( 6 );
 wherein the closure device ( 1 ) has a lid element ( 7 ) for closing the container opening ( 6 ), a chamber ( 2 ) associated with the lid element ( 7 ) and an inner housing ( 8 );   wherein the chamber ( 2 ) and the inner housing ( 8 ) furthermore have closure means and opening means that correspond to one another and interact with one another in such a way that a medium (M) housed in the chamber ( 2 ) can exit into the container ( 5 ) due to a movement of the lid element ( 7 ) relative to the inner housing ( 8 );   wherein the chamber ( 2 ) furthermore has a free edge region that in the usage state points into a container interior and annularly extends around a central axis (x) of the chamber ( 2 );   wherein said free edge region has a closure edge ( 12 ) that in the closed state interacts with the inner housing ( 8 ) in a closing manner;   wherein the inner housing ( 8 ) forms a chamber base ( 18 ) that is delimited by the closure edge ( 12 ) and the chamber base ( 18 ) is formed such that it slopes toward a free end of the closure edge ( 12 );   wherein the opening means comprises an opening part that is formed by a sealing element ( 3 ) in the form of a soft plastic layer ( 24 );   wherein the sealing element ( 3 ) comprises two circumferential sealing zones, namely a sealing zone that is formed on a circumferential surface of the opening means that interacts with a facing surface of the chamber ( 2 ), as well as a sealing zone that is radially offset relative thereto and can interact with a closure means (V);   wherein the sealing zones are arranged concentric to one another in a direction extending perpendicular to a moving direction of the opening means relative to the chamber ( 2 ) when the closure device is opened;   wherein the closure edge ( 12 ) has a circumferential catch bead ( 22 ) that protrudes radially outward and in the closed position engages into a correspondingly positioned circumferential depression ( 23 ) in the region of the pot wall ( 13 ) or   wherein the soft plastic layer ( 24 ) has an altogether pot-shaped design, wherein the soft plastic layer overlaps in the usage position of the closure device ( 1 ) a dome-like elevation of the inner housing ( 8 ) in the region of the pot base ( 14 ) and optionally an oblique chamber base ( 18 ), and wherein the soft plastic layer also circumferentially overlaps the inner pot wall ( 17 ) connected to the chamber base and at least the pot base ( 14 ).   
     
     
         13 . A closure device ( 1 ) for a container ( 5 ) having a container opening ( 6 );
 wherein the closure device ( 1 ) has a lid element ( 7 ) for closing the container opening ( 6 ), a chamber ( 2 ) associated with the lid element ( 7 ) and an inner housing ( 8 );   wherein the chamber ( 2 ) and the inner housing ( 8 ) furthermore have closure means and opening means that correspond to one another and interact with one another in such a way that a medium (M) housed in the chamber ( 2 ) can exit into the container ( 5 ) due to a movement of the lid element ( 7 ) relative to the inner housing ( 8 );   wherein the chamber ( 2 ) furthermore has a free edge region that in the usage state points into a container interior and annularly extends around a central axis (x) of the chamber ( 2 );   wherein said free edge region has a closure edge ( 12 ) that in the closed state interacts with the inner housing ( 8 ) in a closing manner;   wherein the inner housing ( 8 ) has an essentially pot-like design with a circumferential pot wall ( 13 ), a chamber base ( 18 ) that is delimited by the closure edge ( 12 ) and a collar ( 15 ) for being supported on a container edge surrounding the container opening ( 6 );   wherein the chamber base ( 18 ) is formed such that it slopes toward a free end of the closure edge ( 12 ), wherein the closure edge ( 12 ) is made of a soft plastic material and simultaneously forms a sealing element ( 3 ); and   wherein the closure edge ( 12 ) interacts in a sealing manner with the pot wall ( 13 ) and the inner pot wall ( 17 ) in the closed position.   
     
     
         14 . The closure device according to  claim 12 , wherein the chamber base ( 18 ) is realized in the form of an oblique plane that in a cross section extends beyond the central axis (x). 
     
     
         15 . The closure device according to  claim 12 , wherein the chamber base ( 18 ) is realized with a conical cross section and has an apex ( 20 ). 
     
     
         16 . The closure device according to  claim 15 , wherein the center axis (x) of the chamber ( 2 ) extends through the chamber base ( 18 ) in the apex ( 20 ). 
     
     
         17 . The closure device according to  claim 11 , wherein the chamber base ( 18 ) associated with the free end of the closure edge ( 12 ) transforms into a channel ( 19 ) that has a discharge opening ( 21 ). 
     
     
         18 . The closure device according to  claim 17 , wherein the channel ( 19 ) is realized in an annularly closed manner. 
     
     
         19 . The closure device according to  claim 17 , wherein the discharge opening ( 21 ) is formed in a channel base. 
     
     
         20 . The closure device according to  claim 17 , wherein the discharge opening ( 21 ) is formed in a channel sidewall. 
     
     
         21 . The closure device according to  claim 11 , wherein the chamber base ( 18 ) has a soft plastic layer ( 24 ). 
     
     
         22 . The closure device according to  claim 17 , wherein the discharge opening ( 21 ) is formed in the soft plastic layer ( 24 ) only.