Patent ID: 8113260

Claim:
An articulation device for an awning arm elbow, said awning arm being formed by a forearm and an arm articulated in said elbow, of the type comprising: a forearm elbow part defining a fork between the branches of which a core configured around an axis is fixedly supported, with an anchoring configuration formed in said core to couple an enlarged end of a flexible tie rod element connected to at least one elastic member secured inside said arm; an arm elbow part defining a surrounding wall arranged around said core with a clearance between both to accommodate said flexible tie rod element; and bearing means arranged to guide a relative rotation between said forearm elbow part and said arm elbow part around said axis and to support the forearm in the arm; wherein said bearing means including at least one bearing unit comprising a first annular element which is fixed to the forearm elbow part and a second annular element which is fixed to the arm elbow part, said first and second annular elements including respective facing surfaces adapted to mutually cooperate in the functions of the bearing means, wherein the core fixed to the forearm elbow part and the surrounding wall defined by the arm elbow part comprise respective seats for said first annular element and said second annular element, wherein at least one of said seats comprises: a conical surface coaxial with the axis; ribs projecting from said conical surface defining radial support surfaces coinciding with a cone coaxial with the axis and adapted to receive by pressurized insertion a radial rest surface of the corresponding first or second annular element; an axial support surface perpendicular to the axis and adapted to receive an axial rest surface of the corresponding first or second annular element; and a circumferential channel formed in said axial support surface adjacent to said ribs.