Bulk material cargo container liner with internal restraint system for preventing the outward bulging of the liner

Abstract

A bulk container liner assembly for use in conjunction with a bulk material cargo container comprises structure incorporated therein such that restraint forces are impressed upon or transmitted to the back or rear wall member of the bulk material cargo container liner, along linearly seamed loci, so as to effectively prevent the back or rear wall member of the bulk material cargo container liner from experiencing or undergoing any outward bulging thereof under the influence of the hydrostatic head load forces generated internally within the bulk material cargo container liner as a result of the charging of bulk cargo material into the interior portion of the bulk material cargo container liner.

1 . A bulk material cargo container liner for use within a bulk material cargo container having rear door structures, comprising: 
 a bulk material cargo container liner having a substantially rectangular parallelepiped structure when erected for disposition within a bulk material cargo container and therefore comprising a front wall member, a pair of side wall members, a ceiling member, a floor member, and a rear wall member; and    means disposed within said bulk material cargo container liner for impressing restraint forces along first linear loci upon said rear wall member of said bulk material cargo container liner, and thereby effectively reduce the forces normally imposed upon said rear wall member of said bulk material cargo container liner, by means of hydrostatic head load forces generated as a result of bulk cargo material being charged into said bulk material cargo container liner, which would normally tend to cause said rear wall member of said bulk material cargo container liner to bulge outwardly, so as to thereby prevent said rear wall member of said bulk material cargo container liner from undergoing outward bulging.    
   
   
       2 . The bulk material cargo container liner as set forth in  claim 1 , wherein: 
 said rear wall member of said bulk material cargo container liner has predetermined vertical height and lateral width dimensions; and    said first linear loci, along which said restraint forces are impressed, extend substantially vertically along said rear wall member of said bulk material cargo container liner throughout substantially the entire vertical height dimension of said rear wall member of said bulk material cargo container liner.    
   
   
       3 . The bulk material cargo container liner as set forth in  claim 1 , wherein: 
 said means disposed within said bulk material cargo container liner, for impressing said restraint forces along said first linear loci upon said rear wall member of said bulk material cargo container liner, comprises a plurality of gusset plates disposed internally within said bulk material cargo container liner.    
   
   
       4 . The bulk material cargo container liner as set forth in  claim 3 , wherein: 
 said plurality of gusset plates are disposed internally within said bulk material cargo container liner so as to be disposed parallel to each other.    
   
   
       5 . The bulk material cargo container liner as set forth in  claim 4 , wherein: 
 each one of said plurality of gusset plates disposed parallel to each other has a substantially triangular configuration wherein a first side of each one of said substantially triangularly configured gusset plates is fixedly secured to said rear wall member of said bulk material cargo container liner along said first linear loci, while a second side of each one of said substantially triangularly configured gusset plates is fixedly secured to said floor member of said bulk material cargo container liner along second linear loci.    
   
   
       6 . The bulk material cargo container liner as set forth in  claim 4 , wherein: 
 each one of said plurality of gusset plates has a substantially trapezoidal configuration wherein a first edge portion of each one of said substantially trapezoidal configured gusset plates is fixedly secured to said rear wall member of said bulk material cargo container liner along said first linear loci, and a second edge portion of each one of said substantially trapezoidal configured gusset plates is fixedly secured to said floor member of said bulk material cargo container liner along second linear loci.    
   
   
       7 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 cleat means fixedly mounted upon said side wall members of said bulk material cargo container liner for operatively engaging corresponding configured recessed regions of the bulk material cargo container so as to effectively retain said bulk material cargo container liner at a fixed position within the bulk material cargo container even when the bulk material cargo container is tilted so as to unload the bulk cargo material from said bulk material cargo container liner.    
   
   
       8 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 a plurality of reinforcing straps interconnecting said plurality of parallel gusset plates to said rear wall member of said bulk material cargo container liner.    
   
   
       9 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 a plurality of reinforcing straps interconnecting said plurality of parallel gusset plates to said floor member of said bulk material cargo container liner.    
   
   
       10 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 a plurality of reinforcing straps fixedly mounted upon said floor member of said bulk material cargo container liner and interconnecting said plurality of gusset plates to forward corner regions of said bulk material cargo container liner; and    fastening means for connecting said forward corner regions of said bulk material cargo container liner to interior supports located upon the bulk material cargo container such that restraint forces are transmitted to said plurality of reinforcing straps and said gusset plates.    
   
   
       11 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 reinforcing strap means fixedly mounted upon upper exterior surface portions of said rear wall member of said bulk material cargo container liner; and    fastening means for connecting said reinforcing strap means to interior supports located upon the bulk material cargo container so as to prevent said rear wall member of said bulk material cargo container liner from vertically sagging and collapsing.    
   
   
       12 . The bulk material cargo container liner as set forth in  claim 1 , further comprising: 
 safety sheet means secured to said rear wall member of said bulk material cargo container liner for reinforcing said rear wall member against bulging and leakage.