Corrugated cardboard box for the transport of fresh produce, which has improved insulation and leak-tightness properties and facilitates placing adhesive strips during the final sealing of the box

Abstract

This invention relates to a corrugated cardboard box ( 1 ) for the transport of fresh produce, such as frozen fish, which has improved insulation and leak-tightness properties and facilitates placing adhesive strips during the final sealing of the box, said box comprising a top cover ( 2 ), a bottom cover ( 4 ) and an intermediate leak-tight container ( 3 ) that is positioned inside the top cover ( 2 ) and the bottom cover ( 4 ) and has vertical folded edges ( 6 ).

1 . A corrugated cardboard box ( 1 ) for carrying fresh products, such as frozen fish, with improved insulation properties/leak tightness aimed to facilitate wrapping with adhesive strips during final sealing of the box, featured because it is made up of:
 a telescopic upper lid ( 2 ) and lower lid ( 4 ), that make up a second wall around an intermediate leak-tight container ( 3 ), each of them covering half the height of the container ( 3 ), the upper ( 2 ) and lower ( 4 ) lids come from one single template ( 17 ), the template ( 17 ) is made up of a base ( 12 ) from where two major walls ( 13 ), two minor walls ( 14 ) and four wings ( 15 ) are projected, the major walls ( 13 ) are made up of three foldable sections in a row, a distal section ( 18 ), a central section ( 19 ) and a proximal section ( 20 ), the minor walls ( 14 ) are made up of a distal section ( 21 ) with a central shoulder ( 16 ) located at the edge and a proximal section ( 22 ); and   an intermediate leak-tight container ( 3 ) located inside the upper lid ( 2 ) and the lower lid ( 4 ), having bellow vertical folded edges ( 6 ) retained by a foldable panel ( 9 ) folded on top of them, the intermediate leak-tight container ( 3 ) coming from a template ( 5 ) other than the lids template ( 17 ), the template ( 5 ) of the intermediate leak-tight container ( 3 ) made up of a base ( 8 ) from where two major walls ( 23 ), two minor walls ( 24 ) and four foldable edges ( 6 ) are projected, the major walls ( 23 ) are made up of one section only and the minor walls ( 24 ) are made up of a proximal section ( 25 ) and a distal section which is the foldable panel ( 9 ).   
     
     
         2 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because the proximal section ( 25 ) of the minor walls ( 24 ) of the container ( 3 ) and the section acting as foldable panel ( 9 ) are attached to each other by folded portions ( 10 ) and there is a central groove ( 11 ) among them. 
     
     
         3 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because in order to form the upper lid ( 2 ) and the lower lid ( 4 ), the template ( 17 ) must have cuts ( 26 ) between the wings ( 15 ) and the proximal section ( 20 ) of the major walls ( 13 ), so that when the major walls ( 13 ) are folded in their sections ( 18 ,  19 ,  20 ), the wings ( 15 ) are set among the central sections ( 19 ) and the proximal sections ( 20 ). 
     
     
         4 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because in the upper lid ( 2 ) and the lower lid ( 4 ) the distal sections ( 18 ) of the major walls ( 13 ) are set along and parallel to the base ( 12 ). The width of these distal sections ( 18 ) matches the width of the folded portions ( 10 ) of the inner leak-tight container ( 3 ). 
     
     
         5 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because the distance between the two distal sections ( 18 ) set along and parallel to the base ( 12 ) of the lids ( 2 ) and ( 4 ), matches the width of the central groove ( 11 ) of the container ( 3 ) and matches the width of the shoulder ( 16 ) of the minor walls ( 14 ) of the lids ( 2 ) and ( 4 ). 
     
     
         6 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because the inner leak-tight container ( 3 ) is coated with a special cardboard including a piece of polyethylene coated paper. 
     
     
         7 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because with the template ( 5 ), located in the inner leak-tight container ( 3 ), the bellow folded edges ( 6 ) are set outside or inside the proximal section ( 20 ) of the minor walls ( 24 ). 
     
     
         8 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to the  claim 1 , featured because the edges ( 6 ) have a shoulder ( 7 ). 
     
     
         9 . A corrugated cardboard box ( 1 ) for carrying fresh products, according to  claim 8 , featured because when the bellow folded edges ( 6 ) are set whether outside or inside the minor walls ( 24 ), their shoulders ( 7 ) are inserted into the central groove ( 11 ) and the foldable panel ( 9 ) is covered by such foldable edges ( 9 ) thus securing its position.