Positioning device for a laboratory apparatus for the distribution of fluid samples, laboratory apparatus with positioning device and method for positioning

摘要

The invention relates to a positioning device, for a laboratory apparatus for the distribution of fluid samples, in particular for a pipetting device, comprising: a base part, a first part, on which a transport device for transporting a sample can be disposed, wherein the first part for carrying out at least one actuating movement, is arranged on the base part, a second part which is arranged on the base part, on which a sample vessel holder can be disposed, wherein the first part and the second part for carrying out at least one positioning movement in relation to one another and are arranged to be movable in the relative positions can be arranged, a coupling device for coupling the actuating movement and the positioning movement, wherein the coupling means is set up in such a way that the relative position of the first part and of the second part by means of repeated carrying out of the actuating movement can be varied in steps, whereby an actuating movement, the first and the second part, starting from the n - of the second position relative to the (n + 1) - of the second relative position and moved, a further actuation movement of the first and the second part, starting from a (n + 1) - of the second position relative to the (n + 2) -, which are moved relative position. The present invention also relates to a corresponding method for automatically positioning a first part in relation to a second part and also relates to a laboratory apparatus with such a positioning device.