Abstract: The invention relates to a cable-based lifting device intended to move loads using multiple cables (1) coupled to an equal number peripheral grooves (2) provided in a single driving pulley (3). The invention comprises: a power unit (6) formed by a motor, a brake, a centrifugal brake and gear reducer, all mounted on a supporting shaft (7); a housing (8) which can be secured to the load to be lifted and in which the aforementioned supporting shaft (7) is housed; a structure (9) which can pivot in relation to the shaft (7) and in relation to the housing (8), said structure containing a pinion coupled to the output of the gear reducer of the power unit (6) and meshed with a toothed wheel (10) that rotates integrally with and concentrically to the driving pulley (3) about the shaft (5); and rollers (11).

Abstract: The invention relates to a cable lifting apparatus for lifting people or loads, including a traction sheave provided with a peripheral groove housing a suspension cable against which rollers apply a pressure in order for the traction sheave to perform the pulling function thereof. The apparatus is designed such that the radial load on the cable is a function of the load to be lifted and of the torque applied by a pinion mounted at the output of the reduction power unit and meshed with a gear wheel integrally connected to, and rotatably concentric with, the traction sheave. The described apparatus allows using a variable number of cables, either by means of the use of a modified sheave provided peripherally with as many grooves as there are cables and having an independent group of pressure rollers for each cable or through the formation of grooves between portions separated by notches made in radial planes between successive portions and having a single group of pressure rollers for all of the cables.