Silo or Box for Storage or Transportation of Empty Plastic Bottles

Abstract

The invention finds application in the field of systems for storage of empty plastic bottles, which systems may be either storage silos in a bottle filling plant or boxes for transportation from a bottle manufacturing plant to a bottle filling plant. More particularly, according to the invention, strips or ribbons are placed in the silo or box which has a square or rectangular section, and stretched from one wall to the opposite wall, to form a plurality of grids lying on parallel horizontal planes, which have the function of preventing any excessive pressure from being exerted on the lower layers of the column of bottles, thence any bottle crushing. In accordance with the invention these strips are inserted with their bottom side inclined with respect to the horizontal plane of the longitudinal axis of the strip. The inclination angle a is preferably of 20 to 35°.

1 . A silo or box ( 1 ) for storage or transportation of empty plastic bottles, of the type comprising strips ( 3 ) or ribbons, stretched between a wall or a profile ( 1   b ) and the opposite wall or profile, to form a plurality of grids, lying on parallel horizontal planes, and to thereby prevent any excessive pressure from being exerted on the lower layers of any column of bottles contained therein, characterized in that the strips ( 3 ) are placed with their bottom sides inclined with respect to the horizontal plane of the longitudinal axis of the strip ( 3 ).  
   
   
       2 . A silo or box ( 1 ) for storage or transportation of empty plastic bottles as claimed in  claim 1 , characterized in that the different numbers of strips ( 3 ) are provided over different planes, to thereby create a misaligned arrangement of grids, offset from the bottle falling direction.  
   
   
       3 . A silo or box ( 1 ) for storage or transportation of empty plastic bottles as claimed in  claim 1 , characterized in that the inclination angle a of the strips is preferably of 20 to 35°.  
   
   
       4 . A silo or box ( 1 ) for storage or transportation of empty plastic bottles as claimed in  claim 1 , characterized in that strips ( 3 ) are also provided in grid arrangement on the troncopyramidal discharge hopper, if any; said strips ( 3 ) being shorter and fewer than the strips ( 3 ) on the upper planes of the silo ( 1 ).