Abstract: A robot arm capable of being driven with a small force while having an enhanced rigidity includes a joint unit formed by stacking a plurality of link modules up against each other, and at least one driving device allowing the joint unit to pivot along at least one axis, wherein the driving device includes a cable disposed to pass through the plurality of link modules a plurality of times, a plurality of multi-turn pulleys configured to change a path of the cable when the cable passes therethrough, such that the cable passes through the plurality of link modules, and a driving unit configured to pull or push the cable such that the joint unit pivots.

Abstract: The invention concerns an assembly comprising balanced loading and unloading arm (14) installed at a first location and having articulated pipeline arms (15, 16) mounted through one of its end on a base (18) and provided at the other of its ends with a system connecting (28) the articulated pipeline arms to coupling means (29) installed at the second location. It further comprises a cable (32) linked through one of its ends to the connecting system (28) and through the other of its ends to means (35–39) adapted to subject said cable to constant tension, and a connecting winch (42) whereon is wound a connection cable (41) for bringing the connecting system (28) in a position to be connected to the coupling means (29).

Abstract: A control system for reducing cargo pendulation. The control system calculates a correction factor and adds the correction factor for the operator input motions in addition to the motion of the platform in order to provide a reference position of the suspension point of the hoisting cable. The reference position is then provided to a tracking controller so that the crane can be forced to track the needed motions for reducing the cargo pendulation.