Folding box with angular bellows

Abstract

The cardboard container is characterized in that it has folding panels ( 501 and 502 ) on substantially the same surface as the sidewalls ( 109 and 110 ), which are adapted to be disposed facing said sidewalls ( 109 and 110 ) parallel to them, and which are secured on the one hand to the closure panel ( 140 ) by one of their edges and on the other hand either to an adjacent wall ( 107 - 109 - 110 ) of the base ( 106 ), or to a securement flap ( 142 ) secured to the closure panel ( 140 ), or to both of these elements, by means of a bellows ( 503 ) formed from at least two tongues ( 504 - 505 - 506, 515 - 516 ) secured to each other by a bend line.

1 . Container of cardboard or the like adapted for packaging objects, formed from a blank which is constituted from at least one flat piece and which has when flat different components, 
 a polygonal flat base adapted to the objects to be packaged,    transverse walls adjacent the base to be set up relative to said base, in active position, so as to erect the container at least in part,    sidewalls adjacent the base that are to be set up relative to the base, in active position, so as to form the set-up container at least in part,    means to hold these walls in active position,    a so-called “closure” panel to form the container after emplacement on the base of the objects to be packaged,    means to hold this closure panel in active position,    lateral flanges, 
 characterized in that the container has foldable panels ( 501  and  502 ) substantially of the same surface as the sidewalls ( 109  and  110 ), which are adapted to be placed facing said sidewalls ( 109  and  110 ) parallel to them, and which are secured on the one hand to the closure panel ( 140 ) by one of their edges and on the other hand either to a wall ( 107 - 109 - 110 ) adjacent to the base ( 106 ), or to a securement flap ( 142 ) secured to the closure panel ( 140 ), or to both of these two elements, by means of a bellows ( 503 ) formed of at least two tongues ( 504 - 505 - 506 ,  515 - 516 ) interconnected by a bend line.  
   
     
     
         2 . Container according to  claim 1 , characterized in that the flanges ( 165 - 166 ), which are present in the form of strips glued to the blank and each delimited by two bend lines, when determining an edge of the blank and the other connecting the strip and one of the components of the container, the flat blank having four strips ( 165  and  166 ), two for the sidewalls ( 109  and  110 ) of the container, and two for the closure panel ( 140 ), the folding panels ( 501  and  502 ) being adapted to be applied against the sidewalls ( 109  and  110 ).  
     
     
         3 . Container according to  claim 2 , characterized in that the folding panels ( 501  and  502 ) are adapted to be placed facing the internal surface of the sidewalls ( 109  and  110 ).  
     
     
         4 . Container according to  claim 2 , characterized in that the folding panels ( 501  and  502 ) are adapted to be disposed facing the external surface of the sidewalls ( 109  and  110 ).  
     
     
         5 . Container according to  claim 1 , characterized in that the flanges ( 165 - 166 ), which are present in the form of strips glued to the blank and each delimited by two bend lines, one defining one edge of the blank and the other connecting the strip and one of the components, the flat blank having two strips ( 165  and  166 ) for the sidewalls ( 109  and  110 ) of the container, the folding panels ( 501  and  502 ) being applied facing the external surface of the sidewalls ( 109  and  110 ) and at a distance (D) from the latter substantially equal to the width (L) of a strip ( 155 - 156 ) such that the erected enclosed container has internal flanges ( 165 - 166 ), not visible from outside because they are hidden by the folding panels ( 501  and  502 ).  
     
     
         6 . Container according to  claim 5 , characterized in that it comprises an opening line ( 195 ) which extends transversely from an external edge of a folding panel ( 501 ) to the external edge of the opposite folding panel ( 502 ), over all the width of the closure panel ( 140 ).  
     
     
         7 . Container according to  claim 5 , characterized in that each folding panel ( 501 - 502 ) is secured to a bellows portion ( 503 ) bordered by an oblique bend line, which extends to the edge of the blank.  
     
     
         8 . Container according to  claim 1 , characterized in that the means for holding in active position certain at least of the walls adjacent the base ( 106 ), namely in a position perpendicular to said base ( 106 ), are constituted by at least one holding flap ( 603 ) at the summit of a transverse wall ( 108 ) and connected thereto by a bend line ( 604 ) and which is to be folded down from above the tongues ( 601  and  602 ) secured to the sidewalls ( 109  and  110 ) each by a bend line.  
     
     
         9 . Container according to  claim 1 , characterized in that it comprises a cover of the cap type, which is to say that the closure panel ( 140 ) is secured to a so-called “securement” panel ( 142 ) and to the folding panels ( 501  and  502 ).  
     
     
         10 . Container according to  claim 8 , characterized in that the closure panel ( 140 ) and the folding panels ( 501  and  502 ) are fixed by means of glued tongues ( 607  and  608 ).  
     
     
         11 . Container according to  claim 8 , characterized in that the securement panel ( 142 ) is secured along its transverse external edge, by a bend line, to a holding flap ( 610 ) to be folded down from above over the tongues ( 607  and  608 ) connected to the folding panels ( 501  and  502 ) each by a bend line so as to constitute a capping cover formed by the closure panel ( 140 ), the securement flap ( 142 ) and the folding panels ( 501  and  502 ).  
     
     
         12 . Container according to  claim 1  characterized in that the means to hold the closure panel ( 140 ) in active position are constituted by the securement flap ( 142 ) associated with supplemental members adapted to secure it to a transverse wall ( 108 ).  
     
     
         13 . Container according to  claim 12 , characterized in that the supplemental members are constituted by adhesive ( 130 ) of prolonged effect.  
     
     
         14 . Container according to  claim 12 , characterized in that the supplemental members are constituted by folding panels ( 501  and  502 ) secured to the securement flap ( 142 ).  
     
     
         15 . Container according to  claim 12 , characterized in that the supplemental members are constituted by at least one blocking tongue ( 510 - 220 ) secured to the securement flap ( 142 ) and adapted to be engaged in a slot ( 511 - 221 ) in the transverse wall ( 108 ).  
     
     
         16 . Container according to  claim 15 , characterized in that it comprises at least one holding flap ( 603 ) secured to the summit of one transverse wall ( 108 ) by a bend line ( 604 ) and which is to be folded down from above over the tongues ( 601  and  602 ) secured to the sidewalls ( 109  and  110 ) each along a bend line, so as to maintain in active position said transverse wall ( 108 ) and said sidewalls ( 109  and  110 ), the blocking tongue being formed by a small tongue ( 220 ) provided with two opposite teeth ( 222  and  223 ) and adapted to be folded down over the small tongue ( 220 ) upon introduction into the slot ( 221 ) of the transverse wall ( 108 ), this transverse wall ( 108 ) being maintained spaced from the holding flap ( 603 ) folded down so as to create a space (E) in which the teeth ( 222  and  223 ) of the small tongue ( 220 ) can be at least partially disposed.  
     
     
         17 . Container according to  claim 1 , characterized in that at least some of the lines along which the separate elements and/or the components of the container are to be bent, for their securement in active position, are partially in sized openings ( 620 ) to decrease the force needed for tearing due to the elastic force or “sinew” of the material from which the blank is created.  
     
     
         18 . Container according to  claim 1 , characterized in that it comprises an opening line ( 195 ) which extends transversely to the closure panel ( 140 ) over its internal surface along all the length of the latter, adjacent a bend line along which the closure panel ( 140 ) is connected to the securement flap ( 142 ), which is to say in registry with a region adapted to receive a postage mark ( 199 ).  
     
     
         19 . Container according to  claim 1 , characterized in that it comprises an opening line ( 198 ) and adhesive ( 130 ) of prolonged effect which are located both on a same surface of the blank adapted to constitute the internal surface of the container after the latter is set up and closed.