Mixing/closure device for a container and method for dispensing a medium from a closure device
A closure device for a container, having a lid element for closing the container opening, a chamber which is arranged on the lid element for storing a medium, and an inner housing. The chamber and the inner housing have corresponding closure means and opening means. A discharge opening paired with the chamber can be released by moving the lid element relative to the inner housing such that a medium can exit the chamber into the container. The chamber and the inner housing each have a corresponding first thread which is formed relative to a winding rotational axis. The first winding which is located on the chamber is arranged so as to point radially outwards when seen from the winding rotational axis.
1. A closure device ( 1 ) for a container ( 2 ), in particular a glass container, wherein the closure device ( 1 ) has a lid element ( 4 ) for closing a container opening ( 3 ), the lid element being arranged on a chamber ( 6 ) and an inner housing ( 5 ), wherein the chamber ( 6 ) and the inner housing ( 5 ) have corresponding closing means ( 7 ) and opening means ( 9 ), which interact with one another so that a discharge opening ( 8 ) within the chamber ( 6 ) can be released by a movement of the lid element ( 4 ) relative to the inner housing ( 5 ), so that a medium stored in the chamber ( 6 ) can exit into the container ( 2 ), and the chamber ( 6 ) and the inner housing ( 5 ) each have a corresponding first thread ( 10 , 10 ′) which is formed relative to a thread axis of rotation ( 19 ), wherein the first thread ( 10 ) on the chamber ( 6 ) is arranged so as to point radially outwards when viewed from the thread axis of rotation ( 19 ) wherein a second thread ( 12 ) for connection to the container ( 2 ) is formed on the lid element ( 4 ), wherein the lid element ( 4 ) is a plastic part and comprises the second thread ( 12 ) or the lid element ( 4 ) is an aluminium element and comprises a moulded-on second thread ( 12 ), and wherein the second thread ( 12 ) of the lid element ( 4 ) and the container ( 2 ) are separable from one another, while the first threads ( 10 ) of the chamber ( 6 ) and the inner housing ( 5 ) are located in an end position in which said first threads cannot twist further with respect to one another.
2. The closure device ( 1 ) according to claim 1 , wherein the lid element ( 4 ) is an aluminium element which can be rolled onto the container ( 2 ) for forming the second thread ( 12 ), wherein the second thread ( 12 ) formed on the lid element ( 4 ) corresponds to a second thread ( 12 ) of the container ( 2 ).
3. The closure device ( 1 ) according to claim 1 , wherein the inner housing ( 5 ) on the side facing away from the first thread ( 10 ) has a press seal ( 11 ) for bearing against the container ( 2 ) in the region of the container opening ( 3 ).
4. The closure device ( 1 ) according to claim 1 , wherein the chamber ( 6 ) is welded onto the lid element ( 4 ).
5. The closure device ( 1 ) according to claim 1 , wherein the lid element ( 4 ) is a plastic element which has the second thread ( 12 ), said second thread ( 12 ) corresponding to a second thread ( 12 ) of the container ( 2 ).
6. The closure device ( 1 ) according to claim 5 , wherein the chamber ( 6 ) has an opening ( 13 ) with a collar-shaped chamfered edge region ( 14 ), wherein a film element ( 15 ) for closing the opening ( 13 ) is welded on the edge region ( 14 ), and wherein the film element ( 15 ) is connected to the lid element ( 4 ).
7. The closure device ( 1 ) according to claim 1 , wherein the discharge opening ( 8 ) is provided with the closing means ( 7 ) which can be opened by means of the opening means ( 9 ) arranged on the inner housing ( 5 ).
8. A container ( 2 ) having a closure device ( 1 ) according to claim 1 , wherein the container has a second thread ( 12 ) in the region of the container opening ( 3 ), which is connected in a positively corresponding manner to the second thread ( 12 ) of the lid element ( 4 ).
9. A method for dispensing a medium from a closure device ( 1 ) into a container ( 2 ), in particular from a closure device ( 1 ) according to claim 1 , wherein the closure device ( 1 ) has a lid element ( 4 ) for closing a container opening ( 3 ), the lid element being arranged on a chamber 6 and an inner housing ( 5 ), wherein closing means ( 7 ) and opening means ( 9 ) assigned to the chamber ( 6 ) and the inner housing ( 5 ) interact with one another during a movement of the lid element ( 4 ) relative to the inner housing ( 5 ) so that a discharge opening ( 8 ) assigned to the chamber ( 6 ) is released, so that a medium stored in the chamber ( 6 ) exits into the container ( 2 ), wherein further during the movement of the lid element ( 4 ) the chamber ( 6 ) and the inner housing ( 5 ) are moved towards one another by means of a corresponding first thread ( 10 ) formed on the chamber ( 6 ) and inner housing ( 5 ), wherein the chamber is moved by means of a radially outwardly pointing first thread ( 10 ) when viewed from a thread axis of rotation ( 18 ) of the closure device ( 1 ), wherein in order to implement a discharge position the lid element ( 4 ) and the container ( 2 ) are moved away from one another in order to bring about a longitudinal movement between the lid element ( 4 ) and the container ( 2 ), corresponding second threads ( 12 , 12 ′) formed on the lid element ( 4 ) and the container ( 2 ) are rotated with respect to one another.