Abstract: The present invention relates to an articulated arm (100) comprising at least three articulations mounted in series in order to allow movements on at least two rotation axes by articulation, characterized in that each articulation (1) comprises a first (2) and second (3) support and at least three linear actuators (10), each linear actuator (10) having a first and second end articulated respectively on the first (2) and second (3) supports by means of a swivel connection (41, 42, 43, 44) and in that it comprises a deformable fluidtight sheath (200) enveloping at least a plurality of articulations and having a volume enabling it, in any circumstance, to follow the movements imparted by the articulated arm.

Abstract: Disclosed is a hexapod system including first and second supports and six linear actuators. Each linear actuator has an articulated end on the first and second supports, with a swivel connection with a force-absorbing structure embedded in the first support and a swivel connection to linear actuators articulated on the first support, and one of the first and second supports includes a connector that cooperates with the force-absorbing structure. The connector cooperates with a second force-absorbing structure of a second hexapod system, and the two hexapod systems mount in series.

Abstract: The present invention relates to a hexapod system (1) comprising a first (2) and second (3) support and six linear actuators (10a, 10b, 10c, 10d, 10e, 10f), each linear actuator having two ends articulated respectively on the first (2) and second (3) supports by means of a swivel connection (41, 42, 43, 44), characterised in that it comprises: a force-absorbing structure (50) on one hand embedded on the first support (2) and on another hand coupled to the second support (3) by a swivel connection (51, 52), the centre of rotation (60) of which is situated in the thickness of the second support (3). The invention also relates to an inspection and/or repair robot characterised in that it comprises a polyarticulated arm equipped with a plurality of hexapod systems (1) according to the invention and in which the hexapod systems (1) are disposed in series.