Rigid hinged-lid cigarette packet

Abstract

A rigid cigarette packet in the form of a rectangular-section prism defined by a cup-shaped container having a hinged lid, and wherein a collar, having a part projecting axially from an open end of the cup-shaped container, and an inner part inside the cup-shaped container, is provided, on the inner part, with two longitudinal slits defining respective tabs, the free edge of each of which extends along a respective longitudinal edge connecting a front wall and a respective lateral wall of the cup-shaped container.

What is claimed is:  
     
         1 . A rigid hinged-lid cigarette packet in the form of a rectangular-section prism, and comprising a cup-shaped container ( 2 ), a lid ( 3 ) hinged to said container ( 2 ), and a collar ( 5 ) in turn comprising a first part ( 6 ) projecting axially from an open end ( 7 ) of said container ( 2 ) and connected in sliding manner to said lid ( 3 ), and a second part ( 8 ) housed inside said container ( 2 ); the container ( 2 ) comprising a front wall ( 9 ), a rear wall ( 10 ), and two lateral walls ( 11 ) perpendicular to the front and rear walls ( 9 ,  10 ) and connected to the front and rear walls ( 9 ,  10 ) along longitudinal edges ( 12 ); each lateral wall ( 11 ) being defined by superimposing a respective first and a respective second appendix projecting laterally from the front wall ( 9 ) and rear wall ( 10 ) respectively; each first appendix being connected to the front wall ( 9 ) along a respective longitudinal edge ( 12 ); and the packet being characterized by said collar ( 5 ) being provided, at said second part ( 8 ), with at least two longitudinal slits ( 21 ;  24 ) defining respective tabs ( 23 ;  26 ), each of which has a free edge ( 22 ;  25 ) extending along a respective said longitudinal edge ( 12 ).  
     
     
         2 . A packet as claimed in  claim 1 , characterized in that each said longitudinal slit ( 21 ;  24 ) is substantially C-shaped, and comprises a straight intermediate portion defining said free edge ( 22 ;  25 ).  
     
     
         3 . A packet as claimed in  claim 1 , characterized in that said collar ( 5 ) comprises a front wall ( 15 ) substantially coplanar with an inner surface of said front wall ( 9 ) of the container; and two lateral strips ( 16 ), each of which is substantially coplanar with an inner surface of a respecttive said lateral wall ( 11 ) and is connected to the front wall ( 15 ) of the collar along a relative longitudinal edge ( 17 ) extending along a relative said longitudinal edge ( 12 ) of said container ( 2 ); each said longitudinal slit ( 21 ;  24 ) being located astride a relative said longitudinal edge ( 17 ) of said collar ( 5 ).  
     
     
         4 . A packet as claimed in  claim 3 , characterized in that each said tab ( 23 ) is coplanar with said front wall ( 15 ) of the collar; the relative said free edge ( 22 ) projecting laterally with respect to said front wall ( 15 ) of the collar and beyond the relative said longitudinal edge ( 17 ) of said collar ( 5 ).  
     
     
         5 . A packet as claimed in  claim 3 , characterized in that each said tab ( 26 ) is coplanar with the respective said lateral strip ( 16 ); the relative said free edge ( 25 ) projecting frontwards with respect to said front wall ( 15 ) of the collar and beyond the relative said longitudinal edge ( 17 ) of said collar ( 5 ).