Container closure

Abstract

The invention relates to a container closure made of plastic having a spout with a jacket for fastening the closure to a container and for drinking out of the container, and having a lower rim and a nozzle adjoining the jacket and surrounding a pouring opening, the spout having an internal thread formed on the inner face of the jacket for screwing onto the neck of the container. Furthermore, the closure has a closure cap which is connected to the spout and has on its inner side a sealing element for closing the pouring opening, and a hinge with which the closure cap can be pivoted relative to the spout from a closed position into an open position and vice versa. A plurality of thread turns are formed on the outer face of the jacket.

1 . A container closure made of plastic, comprising:
 a spout configured for drinking out of a container, comprising:
 a jacket for fastening a closure to the container, the jacket having an internal thread formed on an inner face of the jacket configured for screwing onto a neck of the container and a plurality of thread turns formed on an outer face of the jacket; 
 a lower rim; and 
 a nozzle adjoining the jacket and defining a pouring opening; 
   a closure cap coupled to the spout and having a sealing element on an inner side of the spout for closing the pouring opening; and   a hinge coupling the closure cap relative to the spout to allow the closure cap to pivot from a closed position to an open position relative to the spout and vice versa.   
     
     
         2 . The container closure according to  claim 1 , wherein the plurality of thread turns comprise lower thread turns and upper thread turns lying above the lower thread turns. 
     
     
         3 . The container closure according to  claim 2 , wherein the lower thread turns have a first and a second stop, the first and second stops delimit the lower thread turns. 
     
     
         4 . The container closure according to  claim 2 , wherein the upper thread turns have a first stop and an open thread runout. 
     
     
         5 . The container closure according to  claim 4 , wherein the thread runouts open into an upper rim of the jacket. 
     
     
         6 . The container closure according to  claim 4 , wherein the upper and lower threads are of the same length, and the first stop of the upper threads and the first stop of the lower threads are arranged vertically one above the other. 
     
     
         7 . The container closure according to  claim 1 , wherein on a free rim of the closure cap, a tamper-proof ring is connected to the closure cap by the hinge and by at least one breaking web. 
     
     
         8 . The container closure according to  claim 7 , further comprising at least one first pin configured to engage in one of the lower thread turns and is formed on an inner side of the tamper-proof ring. 
     
     
         9 . The container closure according to  claim 8 , further comprising at least one second pin formed on an inner side of the closure cap above the free rim and configured to engage in one of the upper thread turns. 
     
     
         10 . The container closure according to  claim 9 , further comprising an elevation formed in the upper thread turns and/or in the lower thread turns. 
     
     
         11 . The container closure according to  claim 10 , wherein the elevation is of a height that, during rotation, one of the at least one first or second pins can slide over the elevation with a resistance perceptible to a user. 
     
     
         12 . The container closure according to  claim 7 , wherein the container closure has an axis of rotation about which the closure cap together with the tamper-proof ring is rotatable relative to the spout. 
     
     
         13 . The container closure according to  claim 1 , wherein the jacket has an upper rim forming a connecting surface that connects the upper rim to the nozzle. 
     
     
         14 . The container closure according to  claim 1 , wherein the spout defines an undercut on the inner side of the spout above the lower rim, said undercut configured to have a non-detachable form-fit with the container. 
     
     
         15 . The container closure according to  claim 7 , wherein the free rim of the closure cap defines at least one indentation, the at least one breaking web arranged in the indentation for releasably connecting the closure cap to the tamper-proof ring. 
     
     
         16 . The container closure according to  claim 1 , wherein the hinge has a latching mechanism configured to fix the closure cap in the open position. 
     
     
         17 . The container closure according to  claim 1 , further comprising an outer ring formed on an inner side of the cap, wherein in the closed position, an end of the nozzle is arranged between the outer ring and the sealing element. 
     
     
         18 . The container closure according to  claim 1 , wherein the outer face of the jacket is corrugated at the lower rim. 
     
     
         19 . The container closure according to  claim 13 , further comprising a sealing ring formed on an inner side of the connecting surface. 
     
     
         20 . A container, comprising:
 a container body for receiving a filling material;   a container neck, adjoining the container body and enclosing a dispensing opening, the container neck having an outer thread formed on an outer surface thereof;   an annular bead formed below the external thread; and   a container closure, comprising:   a spout configured for drinking out of the container, the spout defining an undercut on an inner side of the spout above a lower rim of the spout, the undercut configured to have a non-detachable form-fit with the container, the spout comprising:
 a jacket for fastening a closure to the container and having an internal thread formed on an inner face of the jacket for screwing onto a neck of the container; 
 a lower rim; and 
 a nozzle adjoining the jacket and defining a pouring opening; 
   a closure cap coupled to the spout and having a sealing element on an inner side of the spout for closing the pouring opening;   a hinge coupling the closure cap relative to the spout to allow the closure cap to pivot from a closed position relative to the spout to an open position and vice versa; and   a plurality of thread turns formed on an outer face of the jacket;   
       whereby, when the container closure is screwed onto the container neck for a first time, the container closure interacts in a form-fitting manner with the annular bead to non-detachably hold the container closure to the container.