Portable workstation

Abstract

A portable workstation which includes a hand truck, a toolbox which can be detached from the hand truck, and a tray which can be detached from an upper portion of the hand truck is disclosed. The hand truck has a mass and angular relation to the toolbox configured to stably oppose a torque created by a weight of the tray and a load supported by the tray if the toolbox is detached from the hand truck portion. The toolbox includes a top cover which is reversible to convert the toolbox into a seat.

What is claimed is: 
     
         1 . A portable workstation, comprising:
 a hand truck portion;   a toolbox portion detachably couplable to the hand truck portion; and   a tray detachably couplable to the hand truck portion;   the hand truck portion configured to oppose a torque created by the tray on the hand truck portion.   
     
     
         2 . The portable workstation of  claim 1 , wherein the hand truck portion comprises a base having a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the toolbox portion is detached from the hand truck portion. 
     
     
         3 . The portable workstation of  claim 1 , wherein the hand truck portion comprises a plurality of weighted supports having a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the toolbox portion is detached from the hand truck portion. 
     
     
         4 . The portable workstation of  claim 1 , wherein the hand truck portion comprises a mass and angular relation to the toolbox portion sufficient to oppose a torque created the tray on a condition that the tray is coupled to an upper portion of the hand truck portion in a direction facing the toolbox portion. 
     
     
         5 . The portable workstation of  claim 1 , wherein the hand truck portion comprises a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the tray is coupled to an upper portion of the hand truck portion in a direction facing away from the toolbox portion and on a condition that the toolbox portion is coupled to the hand truck portion. 
     
     
         6 . The portable workstation of  claim 1 , wherein the toolbox portion comprises a top cover which is reversible to convert the toolbox portion into a seat. 
     
     
         7 . The portable workstation of  claim 6 , wherein the top cover is liftable to provide access to an interior of the toolbox portion while the toolbox portion is coupled to the hand truck portion. 
     
     
         8 . The portable workstation of  claim 6 , wherein, from a closed position where an obverse side of the top cover is exposed, the top cover is pivotable and slidable to reverse the top cover and reveal a reverse side of the top cover comprising a seat cushion. 
     
     
         9 . The portable workstation of  claim 1 , wherein the tray is couplable to an upper portion of the hand truck portion either in a direction facing the toolbox portion or in a direction facing away from the toolbox portion. 
     
     
         10 . The portable workstation of  claim 1 , wherein the tray comprises a cantilever. 
     
     
         11 . A portable workstation, comprising:
 a hand truck portion;   a toolbox portion detachably couplable to the hand truck portion; and   a tray detachably couplable to the hand truck portion;   the hand truck portion configured to resist tipping.   
     
     
         12 . The portable workstation of  claim 11 , wherein the hand truck portion comprises a base having a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray and on a condition that the toolbox portion is detached from the hand truck portion. 
     
     
         13 . The portable workstation of  claim 11 , wherein the hand truck portion comprises a plurality of weighted supports having a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the toolbox portion is detached from the hand truck portion. 
     
     
         14 . The portable workstation of  claim 11 , wherein the hand truck portion comprises a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the tray is coupled to an upper portion of the hand truck portion in a direction facing the toolbox portion. 
     
     
         15 . The portable workstation of  claim 11 , wherein the hand truck portion comprises a mass and angular relation to the toolbox portion sufficient to oppose a torque created by the tray on a condition that the tray is coupled to an upper portion of the hand truck portion in a direction facing away from the toolbox portion and on a condition that the toolbox portion is coupled to the hand truck portion. 
     
     
         16 . The portable workstation of  claim 11 , wherein the toolbox portion comprises a top cover which is reversible to convert the toolbox portion into a seat. 
     
     
         17 . The portable workstation of  claim 16 , wherein the top cover is liftable to provide access to an interior of the toolbox portion while the toolbox portion is coupled to the hand truck portion. 
     
     
         18 . The portable workstation of  claim 16 , wherein, from a closed position where an obverse side of the top cover is exposed, the top cover is pivotable and slidable to reverse the top cover and reveal a reverse side of the top cover comprising a seat cushion. 
     
     
         19 . The portable workstation of  claim 11 , wherein the tray is couplable to an upper portion of the hand truck portion either in a direction facing the toolbox portion or in a direction facing away from the toolbox portion. 
     
     
         20 . The portable workstation of  claim 11 , wherein the tray comprises a cantilever.