Closure, in particular plastic closure for a container

Abstract

A closure, in particular a closure for plastic containers having a receiving region to receive a mouth section of the container, and having a piercing area which is suitable and intended to be pierced and penetrated by a piercing device in a predetermined piercing direction. The closure is of multi-part construction and has a main body which can be fastened to a mouth of the container as well as a closure body which is disposed on this main body and forms the piercing area, wherein the main body and the closure body differ at least with regard to their flexibility in a piercing direction.

1 . A closure for a plastic container having a receiving region to receive a mouth section of the container, and having a piercing area which is suitable and intended to be pierced and penetrated by a piercing device in a predetermined piercing direction (L), wherein the closure is of multi-part construction and has a main body which can be fastened to a mouth of the container as well as a closure body which is disposed on this main body and forms the piercing area, wherein the main body and the closure body differ at least with regard to their flexibility in a piercing direction. 
     
     
         2 . The closure according to  claim 1 , wherein the closure has a ducting device which adjoins the piercing area. 
     
     
         3 . The closure according to  claim 2 , wherein the ducting device has a start section which adjoins the piercing area, as well as an end section via which the liquid can enter the ducting device, wherein a distance between the start section and the end section can be changed. 
     
     
         4 . The closure according to  claim 2 , wherein the ducting device is bendable and/or telescopic and/or pleatable. 
     
     
         5 . The closure according to  claim 1 , wherein the main body and the closure body are manufactured from different materials. 
     
     
         6 . The closure according to  claim 1 , wherein the main body has a thread. 
     
     
         7 . The closure according to  claim 1 , wherein the closure body has an annular positioning segment which bears against the main body. 
     
     
         8 . The closure according to  claim 1 , wherein the main body has a first annular projection also extending at least in the piercing direction (L), and the closure body has a second annular projection also extending at least in the piercing direction (L), wherein in a state in which the closure body is disposed on the main body the first projection and the second projection bear against one another. 
     
     
         9 . The closure according to  claim 8 , wherein the closure body has a third projection also extending at least in the piercing direction. 
     
     
         10 . The closure according to  claim 9 , wherein the first projection is disposed between the second projection and the third projection. 
     
     
         11 . The closure according to  claim 9 , wherein the closure has a lock which in at least one position of the piercing device with respect to the closure prevents a relative movement of the piercing device relative to the closure in a predetermined direction of movement. 
     
     
         12 . The closure according to  claim 11 , wherein the lock is constructed on the main body. 
     
     
         13 . The closure according to  claim 11 , wherein the piercing area is disposed at least in sections above an external surface of the main body. 
     
     
         14 . The closure according to  claim 11 , wherein the main body has an opening which is suitable and intended for the piercing device to pass through, and at least a portion of the closure body extends through this opening. 
     
     
         15 . A plastic container having a plastic closure as claimed in  claim 11  disposed thereon, wherein the plastic container is compressible in its longitudinal direction (L) in order by such compression to force liquid located in the plastic container out of the container. 
     
     
         16 . The closure according to  claim 6 , wherein the thread is an internal thread. 
     
     
         17 . The closure according to  claim 11 , wherein the lock is arranged to prevent movement of the piercing device in a direction counter to the piercing direction. 
     
     
         18 . The closure according to  claim 1 , wherein the closure is formed of plastic.