Help device for transferring a turbine blade contour onto a rear side turned away from the turbine blade of a platform of a turbine blade

摘要

The device (30) has a bridging arm (34) for connecting a reading arm (36) and a writing arm (32), and a retainer provided at a free end (38) of the writing arm, where the retainer retains a marking unit. The reading arm has a free end (40) attached to a guide blade contour, where the reading arm and the writing arm are aligned parallel to each other. The bridging arm extends perpendicular to the reading arm and the writing arm, and the free end of the reading arm and a tip of the marking unit lie at an imaginary line that is aligned perpendicular to the reading arm or the writing arm.