SELF-PROPELLED JIG CRANE Russian patent published in 2015 - IPC B66C23/80 B60S9/12 

FIELD: transport.

SUBSTANCE: proposed crane comprises automotive chassis with the frame, load-bearing frame with front and rear bracing jacks rotary platform mounted at chassis frame, jig hardware at rotary platform. Bracing jacks have skews on the side of support hydraulic cylinders. Front bracing jacks can turn and are directed from operated cabin. Load-bearing frame is composed of a stiff welded structure consisting of three parts. Platform, front and rear crosswise bars, front crossbar length being longer than rear than that of one. Bracing jacks are mounted at the ends of crosswise beams while rear jacks can turn and are directed toward driver cabin. Every said rear jack is arranged in recess composed of platform side surface and front crosswise beam while front jack is located outside of the rear bracing jack.

EFFECT: decreased metal input, weight, overall dimensions, higher capacity.

12 cl, 3 dwg