Articulated support arm

A articulated supporting arm comprising rigid sections articulated by flexible sections, the flexible sections comprising:

• a plurality of flat strips elongated in a longitudinal direction, each one being flexible and inelastic in the longitudinal direction and having two flat sides parallel to the longitudinal direction, said flat strips being mutually overlapping and in close contact through said flat sides;
• a compressive covering that presses the plurality of mutually overlapping flat strips in a radial direction, pressing the flat sides together, increasing the friction therebetween, and preventing their lateral displacement, such that the flexural mobility of the flexible sections is limited to a plane perpendicular to the flat sides;
• the arm comprises at least one first, second, and third rigid sections and a first and second flexible sections alternated between the rigid sections;
• the plurality of flat strips and the compressive covering span uninterruptedly from the first rigid section to the third rigid section, establishing that the first and second flexible sections have flexural mobility on the same plane perpendicular to the flat sides, and that the bending of the first flexible section in one direction determines the bending of the second flexible section in the opposite direction;
• one of the flat strips has a first end attached to the first rigid section and a second end, opposite the first end, attached to the third rigid section, serving as an anchoring strip;
• and
• each one of the flat strips other than the anchoring strip is attached to the entirety of the remaining flat strips at a first end of said flat strips comprised on the first rigid section.