Closure assembly for a container and container having a closure assembly

Abstract

A closure assembly for a container filled or fillable with a pourable product includes at least a lid having a first rim, a ring member having a second rim facing the first rim and one or more coupling elements, each one being connected to the first rim and to the second rim. Each coupling element comprises at least one respective intermediate portion, one respective first curved portion connected to the first rim and the intermediate portion and one respective second curved portion connected to the second rim and the intermediate portion. The intermediate portion is inclined with respect to the first rim and/or the second rim.

What is claimed is: 
     
         1 . A closure assembly for a container filled or fillable with a pourable product, the closure assembly comprising at least a closing group including:
 a lid including a first rim;   a ring member including a second rim facing the first rim; and   more than one coupling element connected to the lid and to the ring member and tethering the lid and the ring member with one another;   wherein the more than one coupling element constitutes the sole connection between the lid and the ring member before a first-time operation of the lid; and   wherein the closure assembly further comprises a tamper-evidence ring and one or more rupturable coupling bridges connecting the tamper-evidence ring and the ring member with one another, wherein the coupling bridges are configured to rupture during the first-time operation of lid;   wherein the closure assembly further comprises a collar delimiting a pouring outlet, wherein the pouring outlet is configured to allow for the outflow of the pourable product from container, and wherein the ring member and the tamper-evidence ring are arranged around the collar.   
     
     
         2 . The closure assembly according to  claim 1 , wherein the ring member and/or the tamper-evidence ring are coaxial to the collar. 
     
     
         3 . The closure assembly according to  claim 1 , wherein the lid is arrangeable in:
 a closing position in which the lid is connected to the collar and covers the pouring outlet; and   an opening position in which the lid is detached from the collar and clears the pouring outlet;   wherein the lid is controllable between the closing position and the opening position by means of a screwing action.   
     
     
         4 . The closure assembly according to  claim 3 , wherein the lid comprises an inner threaded portion, arranged at an inner surface of the lid, and the collar comprises an outer threaded portion, arranged at an outer surface of the collar, wherein the inner threaded portion and the outer threaded portion are configured to allow for selectively fastening and loosening the lid to and from the collar by means of a relative rotation between the lid and the collar. 
     
     
         5 . The closure assembly according to  claim 3 , wherein the coupling bridges connect the ring member and the tamper-evidence ring with one another prior to a first-time control of the lid from the closing position to the opening position and, in use, during the first time the lid is controlled from the closing position to the opening position, the coupling bridges irreversibly rupture. 
     
     
         6 . The closure assembly according to  claim 3 , wherein the closure assembly further comprises an interaction unit coupled to the collar and configured to interact with the tamper-evidence ring so as to actuate rupture of coupling bridges during the first time the lid is controlled from the closing position to the opening position. 
     
     
         7 . The closure assembly according to  claim 1 , wherein the more than one coupling elements are two coupling elements. 
     
     
         8 . The closure assembly according to  claim 1 , wherein the ring member is interposed between the lid and the tamper-evidence ring. 
     
     
         9 . The closure assembly according to  claim 1 , wherein the collar comprises an interaction device configured to interact with the ring member for preventing the ring member from decoupling from the collar, wherein the interaction device is configured to delimit an axial movement of the ring member along a longitudinal axis of the collar. 
     
     
         10 . The closure assembly according to  claim 9 , wherein the interaction device comprises an annular ridge radially protruding from an outer surface of the collar, wherein the annular ridge has a discontinuous shape and is formed from a multitude of single pieces protruding from the collar. 
     
     
         11 . The closure assembly according to  claim 1 , wherein the closure assembly further comprises a cutting device configured to rupture a separation membrane and a control device configured to control the cutting device from a rest position to an operative position in which the cutting device is adapted to rupture the separation membrane. 
     
     
         12 . The closure assembly according to  claim 1 , wherein each coupling element is elastically deformable so to be deformable as a result of strain and/or stresses and/or forces acting during handling and/or operation of the closure assembly. 
     
     
         13 . The closure assembly according to  claim 1 , wherein the closing group is molded as a single piece from a molten polymer. 
     
     
         14 . The closure assembly according to  claim 1 , wherein the closure assembly further comprises an interspace arranged between the lid and the ring member, wherein each coupling element is positioned within the interspace. 
     
     
         15 . The closure assembly according to  claim 1 , further comprising a coupling base carrying the collar and being configured to be connected to a main body of the container, wherein at least a portion of the coupling base substantially has a plate-like configuration. 
     
     
         16 . A container filled or fillable with a pourable product, comprising a main body and a closure assembly according to  claim 1 , the closure assembly being coupled to the main body. 
     
     
         17 . A closure assembly for a container filled or fillable with a pourable product comprising at least a closing group including:
 a lid including a first rim;   a ring member including a second rim facing the first rim; and   two coupling elements connected to the lid and to the ring member and tethering the lid and the ring member with one another;   wherein the closure assembly further comprises a tamper-evidence ring and one or more rupturable coupling bridges connecting the tamper-evidence ring and the ring member with one another, wherein the coupling bridges are configured to rupture during a first-time operation of lid.   
     
     
         18 . The closure assembly according to  claim 17 , further comprising a collar delimiting a pouring outlet, wherein the pouring outlet is configured to allow for the outflow of the pourable product from container, and wherein the ring member and the tamper-evidence ring are arranged around the collar. 
     
     
         19 . A container for a pourable product comprising a main body filled or fillable with a pourable product and a closure assembly coupled to the main body, wherein the main body defines a sealed carton package, including a designated pour opening surface area, and the closure assembly is fitted to the main body about the designated pour opening surface area, and wherein the closure assembly comprises at least a closing group including:
 a lid including a first rim;   a ring member including a second rim facing the first rim; and   one or more coupling elements connected to the lid and to the ring member and tethering the lid and the ring member with one another,   wherein the one or more coupling elements constitute the sole connection between the lid and the ring member before a first-time operation of lid; and   wherein the closure assembly further comprises a tamper-evidence ring and one or more rupturable coupling bridges connecting the tamper-evidence ring and the ring member with one another, wherein the coupling bridges are configured to rupture during the first-time operation of lid.   
     
     
         20 . The container according to  claim 19 , further comprising a collar delimiting a pouring outlet, wherein the pouring outlet is configured to allow for the outflow of the pourable product from container, and wherein the ring member and the tamper-evidence ring are arranged around the collar.