An apparatus for cutting out a hole or of a hollow space on a flat or curved wall element and for cutting out a disk-shaped into the hole or fitting into the cavity piece of material

摘要

The invention relates to equipment for making a hole or cavity formation in a curved or planar wall element and for cutting out a disc-shaped piece of material fitting the hole or cavity formation. The equipment (10) comprises a frame (12) with means (18, 20) for fixing it on the wall element, and a carriage (32) displaceably mounted in a first linear direction. A slide (56) is mounted to be displaceable perpendicular to the first linear direction and carries a tool unit (60). The carriage (32) has wheel sets (34), which are biased against the wall element, the wheel sets (34) being pivotable and displaceably mounted on a respective guide slide (42), which is mounted to be displaceable in said first linear direction.