Combination hand truck, step ladder and dolly
AssigneeSylmark Holdings Limited
InventorsDean Tornabene, Mitchell H. Babkes, Henry J. Howell
Life of this patent
Estimating the term…
Abstract
A combination hand truck, dolly and step ladder device includes a hand truck frame and a step ladder frame that are pivotally attached to one another and can be fixed at selective angles with respect to each other to form a hand truck, a dolly and a step ladder. In a step ladder configuration, the top step of a step assembly is secured to a cross member of the hand truck frame so as to lock the hand truck frame and the step ladder frame into a substantially fixed relationship to one another. In a dolly configuration, the hand truck frame becomes the handle for the dolly, and is held in place by a support bar that pivotally attaches to the hand truck frame and secures to the step ladder frame.
Claims12
A multi-use move, lift and support device, comprising:
- a step ladder frame having a handle at a first end and a pair of elongated legs extending to a second end;
- a hand truck frame pivotally connected to the step ladder frame at a first end and elongated legs extending to a second end, wherein the hand truck frame has at least three positions relative to the step ladder frame for a step ladder configuration, a hand truck configuration, and a dolly configuration;
- a step assembly attached to the step ladder frame, and having a plurality of steps pivotally attached to the elongated legs, wherein the plurality of steps includes a top step;
- a support plate pivotally connected to a second end of the hand truck frame;
- a first pair of wheels attached to the first end of the step ladder frame and a second pair of wheels attached at the second end of the step ladder frame;
- and
- wherein in a step ladder configuration, the top step attaches to a cross member extending between the legs of the hand truck frame and secures the hand truck frame and step ladder frame in a fixed relationship to one another.
Dependencies are inferred from the claim text.