SELF-PROPELLED TRANSPORTATION TROLLEY Russian patent published in 2024 - IPC B62D51/04 B65D63/00 

FIELD: trackless ground vehicles.

SUBSTANCE: invention relates to trackless ground vehicles, in particular, to self-propelled trolleys, as well as to hand trolleys with retractable elements. Self-propelled transportation trolley consists of a bearing frame containing a main frame, a pair of motor-wheels with a power supply and control means. Bearing frame comprises two side plates located in parallel, on the left and on the right, to the longitudinal plane of symmetry of the trolley. It is equipped with transverse stiffness elements rigidly attached to side plates and contains two inclined stops, left and right suspensions, each made in the form of angular connection of tubular elements. Main frame is made U-shaped and rigidly fixed on side plates. It is equipped with three additional transverse stiffeners and two eye loops. Each motor wheel is made with increased diameter. Trolley comprises U-shaped folding frame adjoining the main frame. Folding frame is equipped with two additional elements of transverse stiffness and is hinged on walls of side plates. Handle and the leg of the control means are arranged as folding and are hingedly fixed in eyes of hinges of the main frame.

EFFECT: increased flotation, strength and reliability with simultaneous reduction of trolley structure weight, as well as reduced dimensions in folded position.

1 cl, 7 dwg