Patent ID: 8448959

Claim:
A toolbox device in combination with an aerial work platform having a floor and a guard rail with an upper rail, the toolbox device comprising: a) a chest having an upper box with a pivotal lid having a lid top defining a top of the chest and at least one lower tray disposed under the upper box; b) a rail hanger attached to the chest and located at a back and the top of the chest, the rail hanger removably hooking the chest to the upper rail of the guard rail and removably suspending the chest from the upper rail and above the floor of the platform; c) a pull, handle attached to a top of the rail hanger; d) a pair of wheels coupled to a bottom and the back of the chest; and e) the toolbox device having a height greater than 35 inches and less than 48 inches from an inside top of the rail hanger to a bottom of the pair of wheels with the chest extending a majority of a height of the guard rail with the pair of wheels suspended above the floor of the platform when the chest is suspended from the upper rail, f) at least one foldable shelf pivotally coupled to the top of the chest with a shelf top substantially flush or level with the top of the lid when the lid is closed and the shelf is open; g) a brace extending from the shelf top and abutting a side of the chest or the box when the shelf is open; and h) the top of the rail hanger extending above the shelf and the brace thereof when the shelf is folded over the top of the lid.