Curve element has sector between two azimuth angles, with axis and curve line.

摘要

The curve element (1) has a sector between a first and second azimuth angle and which is movable with a translational element running parallel with the axis defined by the support element. The sector is movable between at least two positions. In the first position, the sector has a curve line (111) depending on the azimuth angle, and in the second position, has a curve line dependent on a second azimuth angle.