A lifting device includes a body or frame, a track, a lifting mechanism having a trolley moveable relative to the track for lifting an object, a main set of wheels coupled to a base portion of the body/frame, a maneuvering set of wheels coupled to the base portion between at least a portion of the main set of wheels and the trolley and vertically offset from the main set of wheels, and at least one arm extending outwardly from the base portion. The vertical offset between the main set and the maneuvering set of wheels forms a two stage lever which improves the mechanical advantage of the lifting device, thereby decreasing the amount of force needed to recline the object being lifted by the lifting device.


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    Title :

    Hand truck device


    Contributors:

    Publication date :

    2019-07-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS , Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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