| 摘要 |
A height controllable support column includes a telescoping screw actuator (2) which acts between a floor (4) and a table plate (5), and a telescopic tubular column (3) accommodating the telescopic screw actuator. The telescopic screw actuator (2) comprises a hollow cylinder (6) having an inner thread (7), a second hollow cylinder (8) having an external thread (9) cooperating with the inner thread (7) on the hollow cylinder (6) and an inner thread (10), and a cylindrical rod (11) having an external thread cooperating with the inner thread (10) on the second hollow cylinder (8). The telescopic tubular column (3) comprises telescopic tubes (22, 23, 24) which are sideways stabilized by means of glide elements (32-38; 46-51) so arranged that of a set of glide elements only one needs to be adjusted for mutually stabilizing the tubes (22, 23, 24). |
