Bulk Item Backpack

Abstract

Disclosed is a bulk item backpack composed of an upper frame portion and a lower frame portion that pivot with respect to one another and are adapted to carry a wide array of bulk cargo, including coolers. The backpack has a strap or plurality of straps to secure the backpack to the user, including a waist strap, shoulder straps, or both types of straps. Optionally the backpack may also include cargo straps for securing additional items, such as folding chairs or a storage box adapted for carrying loose items therein. The backpack of the present invention provides a frame that is ideally suited for simultaneously carrying bulky items and loose items that are difficult to carry at once and would normally require several trips.

I claim: 
     
         1 . A backpack, comprising:
 a frame having an upper frame portion, a ledge, and a lower frame portion;   the upper frame portion having a first side and a second side;   the ledge attached perpendicularly outward from the second side of the upper frame portion;   the lower frame portion pivotally attached to the ledge, wherein the lower frame portion may be pivoted between a parallel position to the upper frame portion and a perpendicular position to the upper frame portion;   a cross member disposed at a distal end of the ledge, wherein the cross member is axially aligned with the pivot;   wherein the cross member is configured to support an object thereon and within the lower frame portion when the lower frame portion is in the perpendicular position.   
     
     
         2 . The backpack of  claim 1 , further comprising a storage box removably attached to the upper frame portion. 
     
     
         3 . The backpack of  claim 1 , further comprising a plurality of cargo straps adjustably attached to the second side of the upper frame portion. 
     
     
         4 . The backpack of  claim 1 , further comprising:
 a storage box removably attached to the upper frame portion;   a plurality of cargo straps adjustably attached to the second side of the upper frame portion.   
     
     
         5 . The backpack of  claim 1 , further comprising a pair of gusset straps extending between the upper frame portion and the lower frame portion, wherein the gusset straps prevent the lower frame portion from pivoting more than 90 degrees. 
     
     
         6 . The backpack of  claim 5 , wherein the pair of gusset straps is affixed to the upper frame portion and the lower frame portion via a closed loop, wherein each gusset strap is adapted to slidably move along the upper frame portion and the lower frame portion, respectively. 
     
     
         7 . The backpack of  claim 1 , further comprising a plurality of user attachment straps adjustably attached to the first side of the upper frame portion.