Collapsible and stackable supporting device for shipping and storage of materials

Abstract

The present invention refers to a collapsible supporting device used for shipment and storage of materials with or without a supporting mandrel, using links ( 4 ), tongues ( 8 ) and sleeves ( 14 ) in a system to engage and secure the assembly. The supporting device includes a horizontal supporting strut ( 11 ) with a double supporting system ( 12 ) and ( 13 ) which is used to provide support to materials such as rolls having rolling axes (for example, tubes made of iron, wood, etc) or directly supported tubular mandrels. When disassembled, the supporting device may be compacted up to a ratio of about 7.5 times compared to its assembled volume.

1 . A collapsible and stackable supporting device comprising
 a rectangular base frame (A), two longitudinal struts ( 1 ) joined at the ends thereof to two traverse bars ( 2 ) and two intermediate traverse bars ( 3 ),   two structures forming the side panel (B) comprised by two risers ( 5 ) joined to two parallel longitudinal bars ( 6 ), joined at the central portion thereof by a vertical bar ( 7 ),   two traverse struts (C) formed by a horizontal bar ( 11 ), characterized by comprising a locking system comprised by links ( 4 ) at the rectangular base frame (A), tongues ( 8 ) on the structures that form the side panel (B), an engagement system comprised by sleeves ( 14 ) intended to be fitted over and slide along the risers ( 5 ) of the supporting device, and monolithic risers.   
   
   
       2 . A collapsible and stackable supporting device, according to  claim 1 , characterized by comprising a horizontal supporting bar ( 11 ) including a double supporting alternative ( 12 ), provided on one side for support of iron tubes. 
   
   
       3 . A collapsible and stackable supporting device, according to  claim 1 , characterized by comprising a horizontal supporting bar ( 11 ) including a double supporting alternative ( 13 ), provided on the other side for directly supporting the tubular mandrel. 
   
   
       4 . A collapsible and stackable supporting device, according to  claim 1 , characterized in that there are attached to the lower end base of the risers ( 5 ) engagement sleeves ( 9 ) for stacking the device and that at the upper end of each riser  5  there is attached an engagement tip ( 10 ) that fits into the sleeves ( 9 ) allowing thereby the stacking of the supporting devices upon assembly thereof. 
   
   
       5 . A collapsible and stackable supporting device, according to  claim 1 , characterized by comprising a compaction ratio of about 7.5 to 1 when disassembled. 
   
   
       6 . A collapsible and stackable supporting device, according to  claim 1 , characterized in that at least five elements that use the self-locking engagement system are independent.