| 摘要 |
The present invention concerns a telescopic column (1) for height adjustment in particular of furniture, comprising a telescopic arrangement comprising an outer (10), a middle (20) and an inner (30) tube capable of telescopic movement relative to each other, a driving device (40) arranged inside the inner tube (30), and a threaded spindle (60) arranged inside the telescopic arrangement and attached to one end of the outer tube (10), characterized in that the telescopic column (1) further comprises an outwardly threaded tubular shaft (50) coupled to the driving device (40), the driving device (40) being arranged for rotating the tubular shaft (50), the inner tube (30) is provided with a nut (31) in threaded connection to the outward thread of the tubular shaft (50), the tubular shaft (50) is provided with an inward thread (51) in threaded connection to the threaded spindle (60), and wherein the outward thread of the tubular shaft (50) and the thread of the threaded spindle (60) have opposite directions. |
