Abstract: The invention is a telescopic column (1) comprising: two or more tubular members (2; 3) telescopically engaging one inside the other; a drive unit (6) contained inside the tubular members (2; 3); a cover (4) attached to the end of the inner tubular member (3); a supporting plate (8) attached to the outside of the cover (4); a tubular rod (5) associated with the drive unit (6), installed inside the tubular members (2; 3) with its end (5a) associated with the cover (4); means (7) for controlling the extension and withdrawal of the tubular members (2; 3). During the withdrawal of the tubular rod (5) inside the tubular members (2; 3), a safety device (9) operatively connected to the control means (7) stops the drive unit (6) if a counteracting element (C) obstructs the lowering of the supporting plate (8).

Abstract: The invention is a telescopic column (1) comprising: two or more tubular members (2; 3) telescopically engaging one inside the other; a drive unit (6) contained inside the tubular members (2; 3); a cover (4) attached to the end of the inner tubular member (3); a supporting plate (8) attached to the outside of the cover (4); a tubular rod (5) associated with the drive unit (6), installed inside the tubular members (2; 3) with its end (5a) associated with the cover (4); means (7) for controlling the extension and withdrawal of the tubular members (2; 3). During the withdrawal of the tubular rod (5) inside the tubular members (2; 3), a safety device (9) operatively connected to the control means (7) stops the drive unit (6) if a counteracting element (C) obstructs the lowering of the supporting plate (8).