| 摘要 |
Telescopic drive assembly comprising a rotatable threaded drive member, an outer tube assembly arranged axially moveable relative to the drive member but non-rotational relative to a frame and comprising a nut member in threaded engagement with the drive member, a transmitter tube with an outer thread, and a drive tube in threaded engagement with the transmitter tube outer thread. The outer tube assembly comprises an outer tube portion coupled non-rotationally to the nut member corresponding to the axis of rotation, the outer tube portion being allowed to pivot relative to the nut member corresponding to at least one axis perpendicular to the axis of rotation. |
