Flip closure for sealing a container

Abstract

A flip closure for sealing a container is provided. The flip closure comprises: a first part with an outer circumferential first sealing element, and a second part with an outer circumferential second sealing element, the first part connected to the second part by a hinge which allows rotational movement of one of the two parts around an axis into an open or a closed position of the flip closure, the second sealing element divided into a hinge region and a non-hinge region, wherein in the hinge region a height of the second sealing element is adapted to the rotational movement, the first sealing element which in the closed position engages with the second sealing element provides a form-fit, wherein the second sealing element in the non-hinge region has a height which is greater than the height in the hinge region. Further, a container having such a flip closure is provided.

1 . A flip closure for sealing a container, the flip closure comprising:
 a first part with an outer circumferential first sealing element, and   a second part with an outer circumferential second sealing element,   the first part connected to the second part by a hinge which allows rotational movement of one of the two parts around an axis into an open or a closed position of the flip closure,   the second sealing element divided into a hinge region and a non-hinge region, wherein in the hinge region a height of the second sealing element is adapted to the rotational movement,   the first sealing element which in the closed position engages with the second sealing element provides a form-fit,
 characterized in that 
 the second sealing element in the non-hinge region has a height which is greater than the height in the hinge region. 
   
     
     
         2 . A flip closure according to  claim 1 ,
 wherein the first part is a lid part and the second part is a base part.   
     
     
         3 . A flip closure according to  claim 1 ,
 wherein the first sealing element is a sealing wall and the second sealing element is a sealing lip.   
     
     
         4 . A flip closure according to  claim 1 ,
 wherein the second sealing element comprises a projection extending into the direction of the first sealing element in the closed position.   
     
     
         5 . A flip closure according to  claim 1 ,
 wherein said flip closure has a diameter of at least 40 mm.   
     
     
         6 . A flip closure according to  claim 1 ,
 wherein said flip closure has a diameter of at least 50 mm.   
     
     
         7 . A flip closure according to  claim 1 ,
 wherein said flip closure has a diameter of at least 60 mm.   
     
     
         8 . A flip closure according to  claim 1 ,
 wherein the hinge region and the non-hinge region are connected by transition regions on each side of the hinge region.   
     
     
         9 . A flip closure according to  claim 8 ,
 wherein the second sealing element in the transition region is formed as a linear function   
     
     
         10 . A flip closure according to  claim 9 ,
 wherein the transition region is formed as a continuously ascending ramp.   
     
     
         11 . A flip closure according to  claim 8 ,
 wherein the second sealing element in the transition region is formed as a step function.   
     
     
         12 . A flip closure according to  claim 8 ,
 wherein the second sealing element in the transition region is formed as a sigmoid function.   
     
     
         13 . A flip closure according to  claim 1 ,
 wherein the ratio of the height of the second sealing element in the hinge region and the height of the second sealing element in the non-hinge region is from about 1:1,5 to about 1:3.   
     
     
         14 . A flip closure according to  claim 1 ,
 wherein the ratio of the height of the second sealing element in the hinge region and the height of the second sealing element in the non-hinge region is about 1:2.   
     
     
         15 . A flip closure according to  claim 1 ,
 wherein in the closed position of the flip closure the first and the second sealing element overlap in the non-hinge region at least about 2 mm.