Cable actuator for lumbar support

An actuator connectable to and for adjusting a device, wherein the actuator-comprises:

• a housing having a longitudinal passage extending between a first end and a second end of the housing and defining an opening at or adjacent to the second end;
• a spindle supported in the housing and movable longitudinally in the housing passage, the spindle having two oppositely handed, longitudinally spaced threaded portions of which a first threaded portion is nearer to the first end and a second threaded portion is nearer to the second end;
• a first threaded nut fixed relative to the housing and threadedly engaged with the first threaded portion of the spindle;
• a handle rotatably mounted at the first end of the housing, the handle being coupled to the spindle for rotating the spindle in the first nut and thereby moving the spindle longitudinally relative to the first nut and the housing;
• a second nut fixed against rotation relative to the housing and threadedly engaged with the second threaded portion of the spindle, whereby in response to rotation of the spindle by the handle the second nut is movable longitudinally in the housing passage relative to the spindle, in the same direction as movement of the spindle relative to the housing;
• and
• connecting means on or of the second nut and configured to connect, through the opening defined by the housing, to a device to be adjusted by the actuator;
• wherein the spindle is rotatable by the handle for adjusting the device by longitudinal movement in the same direction of the spindle relative to the housing and of the second nut relative to the spindle;
• wherein the actuator further comprises:
• an opening formed in the second nut and configured for receiving and securing an end of a cable of a Bowden cable system and thereby comprising the connecting means;
• and
• the housing at the second end having an engagement member for fixing a sleeve of the Bowden cable system;
• wherein the spindle is operable for moving the cable longitudinally through the sleeve for adjusting the adjustable device to which the other end of the Bowden cable system is connected.