The invention relates to a centring arrangement for a component carrier, in particular for a mounting frame for structural aircraft components, having a centring pin, a centring receptacle for the centring pin, and a rotary drive for rotating the centring pin about a longitudinal axis of the centring pin, so that the centring pin can be brought into centring engagement with the centring receptacle as a result of the rotation. The invention further relates to a method for centring and locking a centring receptacle.

Example embodiments relate to an apparatus including a stationary first part, a movable second part, and a link arm mechanism connecting the first part and the second part. The first and the second link arm may be interconnected with a fifth articulated joint. First ends of the link arms may be connected with articulated joints movably on the first part. Second ends of the link arms may be connected with articulated joints on the second part. The second part may be moved with a first actuator in a first direction, with a second actuator in a third direction and with a third actuator in a fourth angular direction around the fourth articulated joint.

Gliding means are attached to a side frame of the car sling, said gliding means comprising a gliding part supported through elasticity means on a frame part. The side frame is positioned on a guide rail in an elevator shaft so that the gliding part of the gliding means sets on the guide rail. The gliding means is provided with an installation jig comprising a first branch positioned between the gliding part and the guide rail, and a second branch positioned in an open space between the frame part and the gliding part for bypassing the elasticity means. The installation jig is removed when the installation of the car sling and the car has been completed.