Constructive disposition introduced in articulated support apparatus of visual acuity or similar

摘要

Constructive disposition introduced in support articulavel for apparatus of visual acuity or similar, more precisely, it is support articulated type supporting device of visual acuity (AV) comprises support (2) for installation of the arms (3) and (4) segments In rods (5a) / (5b) and (6a) / (6b).These arms arranged at the side of the base (2) being symmetrical and identical among themselves and are likely to receive the device of visual acuity (AV); the arms (3) and (4) shall include, among the segments of rods (5a) and (5b) and (6a) / (6b).Members of articulation (7) of the type ratchet for the angular movements [alpha] and {beta} of the rods (5a) and (5b) and (6a) / (6b); each member of articulation (7) understand pieces (P1) and (P2) ordinarily identical and opposed, said parts of the states of the articulation (7) are formed by Single piece (P1) and (P2) of the body part split in the transverse direction, shaping part (a) and (b)Whose pieces (P1) and (P2), when mounted, complement so as to compose a cylindrical sector (SC) of the piece and a sector qaudrangular (SQ).