Segment of an articulated arm and articulated arm comprising said segment

Articulated arm comprising at least a segment made of composite material, with an elongated shape defining a longitudinal axis, and having a box-like cross section, and comprising at least a first end portion, configured to allow the pivoting of a further segment, a second intermediate portion configured to allow the pivoting of an actuation member, and a third end portion wherein said first end portion, said second intermediate portion and said third end portion are made in a single body with respect to each other, wherein said second intermediate portion comprises at least a protruding zone defined at least by a first side and by a second side converging with respect to each other to define a vertex, first pivoting elements being provided in said protruding zone in order to allow the pivoting of said actuation member between said protruding zone and the first end portion, wherein said first and said second side defining the protruding zone are filleted to substantially rectilinear adjacent tracts of said first and third end portions, wherein the angle (α) defined between first side and rectilinear tract of the first end portion is bigger than the angle (β) defined between second side and rectilinear tract of the third end portion.

Segment as in claim 20, wherein the ratio between said second length and said axial distance is comprised between 0.30 and 0.50.