Rigid container for tobacco articles

Abstract

In a rigid, substantially parallelepiped-shaped container for tobacco articles, defined by two end walls, and by a lateral surface in turn defined by two, respectively front and rear, major lateral walls and two minor lateral walls, at least one lateral has an outwardly convex profile, is connected to the adjacent lateral walls along respective rounded longitudinal edges, and forms, with the lateral walls, respective substantially obtuse dihedral angles.

1 ) A rigid, substantially parallelepiped-shaped container for tobacco articles made by folding a flat blank ( 19 ) having a number longitudinal crease lines ( 18 ) and a number of transverse crease lines ( 21 ); the container ( 1 ) comprising two end walls ( 7 ,  8 ) and a lateral surface ( 6 ) bounded by the end walls ( 7 ,  8 ) and defined by two, respectively front and rear, major lateral walls ( 10 ,  11 ), and by two minor lateral walls ( 9 ); at least one lateral wall ( 10 ,  11 ;  9 ) having an outwardly convex profile and comprising a central flat portion ( 15 ) and two lateral curved bands ( 16 ), each of which curves with its concavity facing inwards of the container ( 1 ) to connect the flat central portion ( 15 ) to the corresponding adjacent lateral wall ( 9 ;  10 ,  11 ) along the respective longitudinal edge ( 13 ); each lateral band ( 16 ) being precreased by fist longitudinal crease lines ( 17 ), which impart to the lateral band ( 16 ) a curve having a first curve radius (R1); the container ( 1 ) being characterized in that the longitudinal edges ( 13 ) adjacent to the lateral wall ( 10 ,  11 ;  9 ) having an outwardly convex profile are rounded edges and are defined by a number of second longitudinal crease lines ( 18 ), which impart to each rounded longitudinal edge ( 13 ) a curve having a second curve radius (R2) smaller than first curve radius (R1).  
   
   
       2 ) A container as claimed in  claim 1 , wherein each major lateral wall ( 10 ,  11 ) has an outwardly convex profile, is connected to the minor lateral walls ( 9 ) along respective rounded longitudinal edges ( 13 ), and forms, with the minor lateral walls ( 9 ), respective substantially obtuse dihedral angles; the minor lateral walls ( 9 ) being flat.  
   
   
       3 ) A container as claimed in  claim 1 , wherein each minor lateral wall ( 9 ) has an outwardly convex profile, is connected to the major lateral walls ( 10 ,  11 ) along respective rounded longitudinal edges ( 13 ), and forms, with the major lateral walls ( 10 ,  11 ), respective substantially obtuse dihedral angles; the major lateral walls ( 10 ,  11 ) being flat.  
   
   
       4 ) A container as claimed in  claim 1 , wherein the first curve radius (R1) is greater than 4 mm.  
   
   
       5 ) A rigid, substantially parallelepiped-shaped container for tobacco articles, made by folding a flat blank ( 19 ) having a number longitudinal crease lines ( 18 ) and a number of transverse crease lines ( 21 ); the container ( 1 ) comprising two end walls ( 7 ,  8 ), and a lateral surface ( 6 ) bounded by the end walls ( 7 ,  8 ) and defined by two, respectively front and rear, major lateral walls ( 10 ,  11 ), and by two minor lateral walls ( 9 ); at least one lateral wall ( 10 ,  11 ;  9 ) having an outwardly convex profile and comprising a central flat portion ( 15 ) and two lateral curved bands ( 16 ), each of which curves with its concavity facing inwards of the container ( 1 ) to connect the flat central portion ( 15 ) to the corresponding end wall ( 7 ,  8 ) along the respective transverse edges ( 14 ); each lateral band ( 16 ) being precreased by fist longitudinal crease lines ( 17 ), which impart to the lateral band ( 16 ) a curve having a first curve radius (R1); the container ( 1 ) being characterized in that the transverse edges ( 14 ) adjacent to the lateral wall ( 10 ,  11 ;  9 ) having an outwardly convex profile are rounded edges and are defined by a number of second longitudinal crease lines ( 18 ), which impart to each rounded transverse edges ( 14 ) a curve having a second curve radius (R2) smaller than first curve radius (R1).  
   
   
       6 ) A container as claimed in  claim 5 , wherein each major lateral wall ( 10 ,  11 ) has an outwardly convex profile, is connected to the end walls ( 7 ,  8 ) along respective rounded transverse edges ( 14 ), and forms, with the end walls ( 7 ,  8 ), respective substantially obtuse dihedral angles.  
   
   
       7 ) A container as claimed in  claim 5 , wherein each minor lateral wall ( 9 ) has an outwardly convex profile, is connected to the end walls ( 7 ,  8 ) along respective rounded transverse edges ( 14 ), and forms, with the end walls ( 7 ,  8 ), respective substantially obtuse dihedral angles.  
   
   
       8 ) A container as claimed in  claim 5 , wherein the first curve radius (R1) is greater than 4 mm.  
   
   
       9 ) A rigid, substantially parallelepiped-shaped container for tobacco articles, made by folding a flat blank ( 19 ) having a number longitudinal crease lines ( 18 ) and a number of transverse crease lines ( 21 ); the container ( 1 ) comprising two end walls ( 7 ,  8 ), and a lateral surface ( 6 ) bounded by the end walls ( 7 ,  8 ) and defined by two, respectively front and rear, major lateral walls ( 10 ,  11 ), and by two minor lateral walls ( 9 ); at least one end wall ( 7 ;  8 ) having an outwardly convex profile and comprising a central flat portion ( 15 ) and two lateral curved bands ( 16 ), each of which curves with its concavity facing inwards of the container ( 1 ) to connect the flat central portion ( 15 ) to the corresponding lateral walls ( 10 ,  11 ;  9 ) along the respective transverse edges ( 14 ); each lateral band ( 16 ) being precreased by fist longitudinal crease lines ( 17 ), which impart to the lateral band ( 16 ) a curve having a first curve radius (R1); the container ( 1 ) being characterized in that the transverse edges ( 14 ) adjacent to the end wall ( 7 ;  8 ) having an outwardly convex profile are rounded edges and are defined by a number of second longitudinal crease lines ( 18 ), which impart to each rounded transverse edges ( 14 ) a curve having a second curve radius (R2) smaller than first curve radius (R1).  
   
   
       10 ) A container as claimed in  claim 9 , wherein each end wall ( 7 ,  8 ) has an outwardly convex profile, is connected to the major lateral walls ( 10 ,  11 ) along respective rounded transverse edges ( 14 ), and forms, with the major lateral walls ( 10 ,  11 ), respective substantially obtuse dihedral angles.  
   
   
       11 ) A container as claimed in  claim 9 , wherein each end wall ( 7 ,  8 ) has an outwardly convex profile, is connected to the minor lateral walls ( 9 ) along respective rounded transverse edges ( 14 ), and forms, with the minor lateral walls ( 9 ), respective substantially obtuse dihedral angles.  
   
   
       12 ) A container as claimed in  claim 9 , wherein the second curve radius (R1) is greater than 4 mm.