FIELD: mechanical engineering; tower cranes.
SUBSTANCE: proposed foldable unit includes upper member of mast connected with journal, platform arranged horizontally from one side of mast member, and crane control cabin installed for turning around vertical axle, arranged at side of mast member and connected with said member. Cabin orientated manually through 90° between operating position in which cabin is arranged as extension of platform before mast member, and traveling position in which said cabin I folded over platform adjoining mast member.
EFFECT: provision of quick and easy setting into operating position and possibility of folding to reduce overall dimensions to minimum.
9 cl, 6 dwg
