Closure for a container containing a fluid

Abstract

The present invention relates to a closure or cap for a container containing a fluid. The closure or cap is characterized in that the slotted structure comprises several pivoting plates hinged to the body in such a way as to be able to pivot; at least one pivoting plate, preferably each pivoting plate, being connected movably to a neighbouring pivoting plate via a cross section of more flexible deformation than the several pivoting plates, which forms one of the free terminal edges of the slot or slots and is, in a condition of actuation without overpressure inside the container, arranged basically contiguously with the other free terminal edge situated opposite the slot or slots and can open by pivoting away from the inside of the container when the fluid generates increased pressure inside the container, whereupon it moves away from the other free terminal edge.

1 . A closure for a container containing a fluid, comprising a body with an outlet opening, via which the fluid is discharged when it generates a container-internal excess pressure, and which is bounded by a slotted structure with at least one slot, which is defined by free terminal edges facing each other and ending in a common apex, characterized in that the slotted structure comprises multiple pivoting plates, which are hinge-connected to the body so that they can pivot, wherein at least one pivoting plate is connected to an adjacent pivoting plate so as to be moveable, via a deformation section that is more flexible relative to the multiple pivoting plates and forms one of the free terminal edges of the at least one slot, and in an activation state free of a container-internal excess pressure is arranged essentially adjacent to the other opposite free terminal edge of the at least one slot, and when the container-internal excess pressure is generated by means of the fluid can be pivoted upwards away from the container interior and is thus removed from the other free terminal edge. 
   
   
       2 . The closure according to  claim 1 , characterized in that the multiple pivoting plates are connected via a hinge-joint to the body in such a way that, when applying the container-internal excess pressure by means of the fluid, they are pivoted away from the container interior and deform the deformation section in such a manner that the terminal edge thereof is forced apart from the other terminal edge. 
   
   
       3 . The closure according to  claim 1 , characterized in that both free terminal edges of the at least one slot are formed by two deformation sections, which connect one pivoting plate to both of the adjacent pivoting plates. 
   
   
       4 . The closure according to  claim 1 , characterized in that the terminal edges of the at least one slot are essentially in the form of a straight line. 
   
   
       5 . The closure according to  claim 1 , characterized in that the multiple pivoting plates comprise primary and secondary pivoting plates, wherein in the activation state free of container-internal excess pressure the primary pivoting plates lie in a common plane E and the secondary pivoting plates intersect this plane at an angle of about 30° to 60°. 
   
   
       6 . The closure according to  claim 1 , characterized in that primary pivoting plates of the multiple pivoting plates, in the activation state free of container-internal excess pressure, lie in a common plane E, which the deformation sections intersect at an angle of about 20° to 70° or about 30° to 60°. 
   
   
       7 . The closure according to  claim 5 , characterized in that primary pivoting plates of the multiple pivoting plates, in the activation state free of container-internal excess pressure, lie in a common plane E, which the terminal edges of the deformation sections intersect at an angle of about 20° to 70° or about 30° to 60°. 
   
   
       8 . The closure according to  claim 1 , characterized in that a pivoting plate and deformation sections adjacent thereto form a pyramid shape with three axial long sides, of which one long edge is slotted through the free terminal edges of the deformation section. 
   
   
       9 . The closure according to  claim 8 , characterized in that the slotted long edge points towards a center Z of the outlet opening. 
   
   
       10 . The closure according to  claim 8 , characterized in that at least two of three long sides of the pyramid shape have equal area. 
   
   
       11 . The closure according to  claim 8 , characterized in that the slotted structure is formed by at least two separate pyramid shapes with three axial long sides, which are each formed by one secondary pivoting plate and the deformation sections adjacent thereto, wherein one primary pivoting plate lies between two pyramid shapes. 
   
   
       12 . The closure according to  claim 8 , characterized in that a radial base side of the pyramid shape lies in a plane E, which is defined by primary pivoting plates of the multiple pivoting plates in the activation state free of container-internal excess pressure. 
   
   
       13 . The closure according to  claim 1 , characterized in that the pivoting plates have thicker walls than the deformation section. 
   
   
       14 . The closure according to  claim 1 , characterized in that said closure and the deformation sections, are constructed from one piece. 
   
   
       15 . The closure according to  claim 1 , characterized in that the pivoting plates are each connected to the body via a hinge-joint, wherein the hinge-joint is extended in an annular form around a center Z of the outlet opening. 
   
   
       16 . The closure according to  claim 1 , characterized in that the closure is formed from two separate pieces one of which forms a support body for being connected to the container and the other of which forms an insert defining the slotted structure. 
   
   
       17 . The closure according to  claim 1  further in combination with a container. 
   
   
       18 . The closure according to  claim 17 , wherein the closure is fixed to the container by means of screws or clamps. 
   
   
       19 . The closure according to  claim 17 , wherein the container and the closure are made from one piece.