Unloading shoe subassembly for wheeled hand trucks

摘要

An unloading shoe subassembly for use in combination with a hand truck includes a pair of sideframe members and a handle extending between and connecting the sideframe members. A pair of wheeled track assemblies are adapted to be mounted on the frame such that each sideframe member is adjacent one of the wheeled track assemblies and the wheeled track assemblies are generally parallel with one another and generally perpendicular to the load-carrying platform. Each of the wheeled track assemblies includes upper, middle and lower wheel tracks mounted on a support plate in generally coplanar relation with each other. Wheels are slidably mounted within each of the wheel tracks. A shoe assembly including an unloading shoe and at least one shoe support strut is provided, the unloading shoe mounted on the lower end of the strut. The sideframe members are pivotally connected to the wheels in the upper wheel tracks and also pivotally connected to the upper end of the shoe support strut, and the shoe support strut is pivotally connected to the wheels in the middle and lower wheel tracks, the pivotable connections spaced from one another and generally adjacent the upper end of each strut such that as the wheels in the middle and lower wheel tracks are moved, the shoe support strut is tilted to move the unloading shoe generally parallel with the load-carrying platform of a hand truck.