Patent ID: 7850421

Claim:
Stator arrangement for a turbine machine, comprising: a guide blade configured to pivot around a pivot axis of a blade shaft which is connected to the guide blade; a pivoting setting ring; an adjusting lever for transmitting torque from the setting ring to the blade shaft of the guide blade, the adjusting lever being guided with one end configured as a ball head in a groove of the setting ring; and a surface which acts on the ball head of the adjusting lever for transmission of torque from the setting ring to the blade shaft of the guide blade, the surface being configured as a ball socket formed at least partially by a spherical surface on slide elements, the slide elements having a planar surface on an opposing side of the spherical surface and being arranged for translational movement in both the axial and the radial direction in the groove, wherein the groove is bordered at least partially by groove walls which run parallel to one another, and wherein the slide elements are located on opposing sides of the ball head between the ball head and one of the groove walls which run parallel to one another, and wherein the slide elements are made as legs of a guide shoe which encompasses a connecting piece which connects the legs to one another.