Patent ID: 7988934
Filing Date: 2011-08-02
Classification: G01N,Y10T

Abstract:
1. A carrier for positioning objects oriented essentially vertically in the Z direction of a coordinate system in relation to laboratory articles, each of the objects being individually received on a Z rod, and each of the Z rods: being oriented essentially identically to these objects and being situated so that the Z rod is movable along an axis running essentially horizontally in the Y direction of this coordinate system; being implemented as movable essentially vertically, in that the Z rod has teeth which are engaged with a drive wheel, driven by a motor, of a Z drive of the carrier comprising at least one profiled rod situated essentially horizontally and in the Y direction; comprising a Z guide, which is situated on a cage carrying an individual drive wheel, the Z rod being guided to slide on this Z guide in the Z direction; and wherein each drive wheel comprises a section, which is tailored to the cross-section of the profiled rod, individually driven by a motor, of the Z drive of the carrier, on which the drive wheel is seated so that the drive wheel is not rotatable and is displaceable by sliding in the Y direction; and each profiled rod comprising attack faces which exert a contact pressure force on corresponding counter faces of the section of a drive wheel to drive this drive wheel, and wherein the attack faces of the profiled rods for driving a drive wheel are larger than the attack faces of a profiled rod having a square cross-section but having equally large radius.