Abstract: A telescopic lifting column for height adjustment of elevatable tables (1) consists of a stationary rectangular profile (2), which at the bottom rests against a floor, and of a sliding quadrangular profile (3), which slides inside the stationary profile (2) and which can be activated up or down by a linear actuator (4) and which at the top rests against a table top (7). The profiles (2, 3) each have an open side (resp. 8 and 9), and the linear actuator is embodied as a toothed rack (10), which is fastened to the internal side (3?) of the sliding profile (3) opposite the open side (9), and which is in mesh with a toothed wheel (11), which is coupled to a gear motor (12,13), which is fastened to the stationary profile (2) of the lifting column. On the side facing the open side (9), the toothed rack (10) is embodied with a guide way (18) with a width (a) in which two guide pins (19, 20)—with a mutual distance (b) and fastened to the stationary profile (2)—are in mesh.

Abstract: A telescopic lifting column for height adjustment of elevatable tables (1) consists of a stationary rectangular profile (2), which at the bottom rests against a floor, and of a sliding quadrangular profile (3), which slides inside the stationary profile (2) and which can be activated up or down by a linear actuator (4) and which at the top rests against a table top (7). The profiles (2, 3) each have an open side (resp. 8 and 9), and the linear actuator is embodied as a toothed rack (10), which is fastened to the internal side (3?) of the sliding profile (3) opposite the open side (9), and which is in mesh with a toothed wheel (11), which is coupled to a gear motor (12,13), which is fastened to the stationary profile (2) of the lifting column. On the side facing the open side (9), the toothed rack (10) is embodied with a guide way (18) with a width (a) in which two guide pins (19, 20)—with a mutual distance (b) and fastened to the stationary profile (2)—are in mesh.