Patent ID: 6880416

Claim:
Device for adjusting parts which can move in relation to each other, comprising a driveable threaded hollow spindle ( 1 ), whose inner and outer threads rise in opposing directions, an inner spindle ( 2 ) which interacts with the inner thread of the threaded hollow spindle ( 1 ) and which is connected to a first fixing device in order to secure the device to one of the moveable parts, and a propulsive tube ( 4 ) which interacts with the outer thread of the threaded hollow spindle ( 1 ) via an outer nut ( 3 ) and is connected to a second fixing device ( 6 ) enabling fixation of the device on another of the parts which can move in relation to each other, where the threaded hollow spindle ( 1 ) is mounted in a rotationally fixed and longitudinally displaceable manner on a catch device ( 7 ) which can be rotationally driven about the axis of the threaded hollow spindle ( 1 ), and where a guard is provided for the thread of the threaded hollow spindle ( 1 ) that extends essentially over the length of the same, characterised in that the guard is designed as a telescopic tube ( 14 ), one end of which is guided in longitudinally sliding non-rotating fashion on the propulsive tube ( 4 ) and the other end of which is mounted in rotating and non-sliding fashion on the threaded hollow spindle ( 1 ).