Scaffolding for supporting lifting working bridges and platforms

A disassemblable scaffolding for supporting lifting working bridges and platforms comprising uprights or posts and at least one lift bridge or platform which can be let ascend or descend along said posts, each bridge including at least two carrying frameworks and each platform including one carrying framework, each framework supporting a motor unit and a braking unit, said motor units serving to move the respective bridge or the platform up and down along a respective post and the braking units serving to the locking thereof at any desired level, characterized by the fact that the scaffolding is constituted of modular elements which can be assembled to each other by means of releasable joint means, each post (1) having a lattice structure and being formed;

• by a base section (7) made integral with a first base frame (12) mounted on wheels (13), and this first base frame (12) being mounted on and connected, in disasseblable manner, to a wider second frame (14) provided with other wheels (15) and with feet (15) of adjustable height, so that each post (1) and the parts connected thereto and supported thereby can selectively let slide along the ground or respectively rest stably thereon;
• by a plurality of other post sections (7a) to be mounted in superimposed relationship on the base section (7a), said post seconds (7, 7a) being triangular in horizontal cross section and including a vertical corner bar 9a and two tubular corner vertical rods (9) forming in their assembled condition vertical guide rails for engaging sliding guide wheels (36) supported by respective frameworks (31), forming a part of the carrying structure of each bridge (2) or platform (3), this carrying structure also comprising modular lattice carrying elements (46, 47a, 47b) connectable to each other in longitudinal alignment, each carrying structure supporting a footplane (148), as well as a front (149) and a rear parapet (150), each parapet (149 or 150) being constituted of frames (56), the frames (56) forming each front parapet (149) being connected to the carrying elements (46, 47a, 47b and 31) by means of joints comprising tubular seats designed to receive the lower ends of the posts of the frames (56), and arranged in bodies (57) fixed to the carrying structure close upper longitudinal front edges of the elements (46, 47a, 47b, 31) while the frames (56) forming the parapet (150) designed to face the building is connected to the elements (46, 47a, 47b, 31) by joints comprising tubular seats arranged into bodies (57a) connected to the opposite upper longitudinal edges of said elements with the interposition of telescopic connections so as to allow to vary the distance of each parapets (150) from the building and as result thereof, the width of each bridge (3) or platform (2), each post element (7a) comprising a device for contemporaneansly inserting surety locking pins (17 and 29) through the female and male joint members (8 and 8a) connecting the post menbers (7 and 7a).