Foldable display made of corrugated cardboard or the like

Abstract

The invention relates to a display comprising parallel connection panels ( 5 a , 5 b, 5 c ) connected in an articulated manner to first and second parallel wall panels ( 1, 2 ), forming a configuration of an articulated parallelogram movable between a working position providing shelves and a folded position over an inner face of the second wall panel ( 2 ). Third and fourth wall panels ( 3, 4 ) are connected in an articulated manner to opposite longitudinal edges of the second wall panel ( 2 ) and are movable between a working position wherein the third and fourth wall panels ( 3, 4 ) are substantially perpendicular or inclined in relation to the first and second wall panels ( 1, 2 ) and connection panels ( 5 a, 5 b, 5 c ), and a folded position wherein the third and fourth wall panels ( 3, 4 ) are substantially parallel and superimposed over an outer face of the second wall panel ( 2 ).

1 : A foldable display made of corrugated cardboard, comprising:
 first and second mutually parallel and opposite wall panels;   at least two mutually parallel connection panels, each of which has a first transverse edge connected in an articulated manner to said first wall panel and a second transverse edge connected in an articulated manner to said second wall panel, where the first and second wall panels and said at least two connection panels form an articulated parallelogram configuration which can be moved between:
 a working position wherein the connection panels are perpendicular or inclined with respect to the first and second wall panels; and 
 a folded position wherein the first wall panel and the connection panels are substantially parallel to and superimposed over an inner face of the second wall panel; 
   a third wall panel having an edge connected in an articulated manner to a first longitudinal edge ( 26 ) of the second wall panel and a fourth wall panel having a first longitudinal edge connected in an articulated manner to a second longitudinal edge of the second wall panel opposite said first longitudinal edge, where said third and fourth wall panels ( 3 ) are foldable, respectively, around said first and second longitudinal edges between:
 a working position wherein the third and fourth wall panels are substantially perpendicular or inclined with respect to the first and second wall panels, closing a space defined between the first and second wall panels and the connection panels; and 
 a folded position wherein the third and fourth wall panels are substantially parallel to and superimposed over one another and substantially parallel to and superimposed over an outer face of the second wall panel; and 
   retaining means retaining said first, second, third and fourth wall panels and the at least two connection panels in said working position;   characterized in that the third and fourth wall panels have hooking elements and said retaining means comprise at least one elastic element connected to said hooking elements, where said elastic element pulls the third and fourth wall panels towards the working position.   
     
     
         2 : The foldable display according to  claim 1 , characterized in that the second, third and fourth wall panels are integral parts of a first piece of sheet made of corrugated cardboard. 
     
     
         3 : The foldable display according to  claim 2 , characterized in that the connection panels are also integral parts of said first piece of sheet and are cut in the second wall panel. 
     
     
         4 : The foldable display according to  claim 3 , characterized in that said first transverse edge of each of the connection panels is connected to a respective fixing tab by a first weakened line, said fixing tab is fixed to the first wall panel by fixing means, and said second transverse edge of each of the connection panels is connected to the second wall panel by a second weakened line. 
     
     
         5 : The foldable display according to  claim 2 , characterized in that at least one of the connection panels is made up of an additional piece of sheet made of corrugated cardboard integrating a first fixing tab connected by a first weakened line to said first transverse edge of the connection panel, and a second fixing tab connected by a second weakened line to said second transverse edge of the connection panel, where said first fixing tab is fixed to the first wall panel by fixing means and said second fixing tab is fixed to the second wall panel by fixing means. 
     
     
         6 : The foldable display according to  claim 2 , characterized in that said retaining means further comprise a head piece having first retaining elements which fit and are interlocked in second retaining elements formed in the third and fourth wall panels when they are in the working position. 
     
     
         7 : The foldable display according to  claim 6 , characterized in that said head piece is made up of a second piece of sheet made of corrugated cardboard, and said first and second pieces of sheet are cut from a previously printed first board of corrugated cardboard. 
     
     
         8 : The foldable display according to  claim 7 , characterized in that said head piece is fixed to the first wall panel by fixing means. 
     
     
         9 : The foldable display according to  claim 8 , characterized in that the first wall panel has a transverse fold line around which a portion of the first wall panel in which the head piece is fixed can be bent in the folded position. 
     
     
         10 : The foldable display according to  claim 2 , characterized in that the first wall panel is formed by a third piece of sheet made of corrugated cardboard. 
     
     
         11 : The foldable display according to  claim 1 , characterized in that the third and fourth wall panels have respective first and second reinforcement panels adhered to inner faces thereof, and said first and second reinforcement panels have said hooking elements attached thereto in an articulated manner by weakened lines. 
     
     
         12 : The foldable display according to  claim 11 , characterized in that said first and second reinforcement panels are formed by respective fourth and fifth pieces of sheet made of corrugated cardboard, and said third, fourth and fifth pieces of sheet are cut from a second board of corrugated cardboard. 
     
     
         13 : The foldable display according to  claim 11 , characterized in that the third and fourth wall panels have upper edges connected to respective flaps by weakened lines, and said flaps are bent and adhered to an inner face of the respective third and fourth wall panels. 
     
     
         14 : The foldable display according to  claim 13 , characterized in that said first and second reinforcement panels have cutouts in which the flaps fit. 
     
     
         15 : The foldable display according to  claim 1 , characterized in that said first wall panel forms a rear wall, said second wall panel forms a front wall, said third and fourth wall panels form side walls, and at least one of said connection panels forms a shelf. 
     
     
         16 : The foldable display according to  claim 1 , characterized in that said first wall panel forms a front wall, said second wall panel forms a rear wall, said third and fourth wall panels form side walls, and at least one of said connection panels forms a shelf. 
     
     
         17 : The foldable display according to the  claim 1 , characterized in that it includes a base platform panel having dimensions greater than the footprint of the foldable display in the working position, said base platform panel being connected in an articulated manner to lower ends of the first and second wall panels by means of a base connection panel and an elastic band. 
     
     
         18 : The foldable display according to  claim 17 , characterized in that the base platform panel has cutouts defining hooking elements and the base connection panel has at two of its opposite ends attachment flaps adhered to the first and second wall panels and it has at the other two opposite ends hooking elements which are conjugated with said hooking elements of the base platform panel when the base connection panel is superimposed over the base platform panel, and the elastic band is arranged above the base connection panel and has its ends engaging both the hooking elements of the base connection panel and the hooking elements of the base platform panel. 
     
     
         19 : The foldable display according to  claim 6 , characterized in that said head piece is fixed to the first wall panel by fixing means. 
     
     
         20 : The foldable display according to  claim 8 , characterized in that the first wall panel has a transverse fold line around which a portion of the first wall panel in which the head piece is fixed can be bent in the folded position.