Bag-in-box assembly

Abstract

A bag-in-box assembly for receipt of a flowable product has a fitment that defines a dispensing outlet and an interfit portion having a hex-shaped periphery. Also included is a plastic bag which is constructed and arranged to receive the flowable product. The bag includes an opening that is defined by a surrounding lip portion. The surrounding lip portion is conduction welded to a flange surface of the fitment. The box includes a plurality of panels and a plurality of fold-over flaps. One fold-over flap includes an opening and the opening is defined in part by a shaped edge having four of the hex flats. This shaped edge is constructed and arranged to receive the interfit portion of the fitment and secure the fitment in a fashion such that rotation of the fitment relative to the box is restricted.

1 . A bag-in-box assembly for receipt of a flowable product comprising:
 a fitment defining a dispensing outlet for said flowable product and including an interfit portion having a polygon periphery;   a bag constructed and arranged to receive said flowable product, said bag including an opening defined by a lip portion, said lip portion being attached to said fitment; and   a box including a plurality of panels and a plurality of fold-over flaps, one fold-over flap of said plurality of fold-over flaps including an opening, said opening being defined in part by an edge having a polygon shape, said edge being constructed and arranged to receive said interfit portion.   
     
     
         2 . The bag-in-box assembly of  claim 1  wherein the fitment includes a radial flange that is axially adjacent said interfit portion. 
     
     
         3 . The bag-in-box assembly of  claim 2  wherein said radial flange includes a depending rib that is constructed and arranged for engaging a fold-over flap. 
     
     
         4 . The bag-in-box assembly of  claim 3  wherein another fold-over flap of said plurality of fold-over flaps includes a contoured edge having a polygon shape. 
     
     
         5 . The bag-in-box assembly of  claim 4  wherein said one fold-over flap and said another fold-over flap are constructed and arranged to fold together to define a polygon-shaped opening corresponding to the polygon periphery of said interfit portion. 
     
     
         6 . The bag-in-box assembly of  claim 5  wherein said polygon periphery of said interfit portion is a hexagon with six flats. 
     
     
         7 . The bag-in-box assembly of  claim 6  wherein said polygon-shaped opening as defined by the combination of said one fold-over flap and said another fold-over flap is a hexagon with six flats. 
     
     
         8 . The bag-in-box assembly of  claim 7  wherein said one fold-over flap provides four of said six flats for the hexagon-shaped opening. 
     
     
         9 . The bag-in-box assembly of  claim 1  wherein another fold-over flap of said plurality of fold-over flaps includes a contoured edge having a polygon shape. 
     
     
         10 . The bag-in-box assembly of  claim 9  wherein said one fold-over flap and said another fold-over flap are constructed and arranged to fold together to define a polygon-shaped opening corresponding to the polygon periphery of said interfit portion. 
     
     
         11 . The bag-in-box assembly of  claim 10  wherein said polygon periphery of said interfit portion is a hexagon with six flats. 
     
     
         12 . The bag-in-box assembly of  claim 11  wherein said polygon-shaped opening, as defined by the combination of said one fold-over flap and said another fold-over flap, is a hexagon with six flats. 
     
     
         13 . The bag-in-box assembly of  claim 12  wherein said one fold-over flap provides four of said six flats for the hexagon-shaped opening. 
     
     
         14 . The bag-in-box assembly of  claim 1  wherein said polygon periphery of said interfit portion is a hexagon with six flats. 
     
     
         15 . The bag-in-box assembly of  claim 1  wherein said bag is attached to a flange of said fitment by a conduction weld. 
     
     
         16 . The bag-in-box assembly of  claim 15  wherein said bag is a lamination of three layers. 
     
     
         17 . A fitment for a bag-in-box assembly comprising:
 a body defining a hollow interior and including an end defining a dispensing opening;   an upper flange;   a lower flange; and   an interfit portion having a polygon periphery and being axially located between said upper flange and said lower flange.   
     
     
         18 . The fitment of  claim 17  wherein said polygon periphery is a hexagon. 
     
     
         19 . The fitment of  claim 18  wherein said upper flange includes a plurality of depending ribs. 
     
     
         20 . A method of fabricating a bag-in-box assembly for the receipt of product, said method comprising the following steps:
 providing a fitment with a polygon portion and an adjacent flange;   providing a bag;   providing a box having a plurality of panels and a plurality of fold-over flaps, one of said fold-over flaps having an opening that is defined in part by an edge with a polygon shape;   attaching said bag to said flange;   inserting the polygon portion of said fitment into said flap opening; and   folding together said plurality of fold-over flaps to complete the closure of said box.