SURFACE PREPARATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an epock-making surface preparation device capable of reducing load of a worker for supporting a tool and easily and uniformly preparing a surface without generating any polishing unevenness.SOLUTION: A machine body 3 having a brush polishing mechanism 2 for brush-polishing a work surface 1 has a work surface adsorption mechanism 4 performing adsorption freely movably along the work surface 1. The brush polishing mechanism 2 is configured in such a way that a brush part 6 for polishing the work surface 1 is projected from a rotary shaft 5 disposed along the work surface 1, and a travel moving force is generated in the machine body 3 by work resistance of brush-polishing the work surface 1 by the brush part 6. A one-side end projection brush part 7 is provided so that the outer diameter of the one-end side of the brush part 6 is set longer than the outer diameter of the other part. When the projection upper surface 9 of the projection part 8 is brush-polished, The radiused part of the projected corner part 10 of one side of the projection upper surface 9 is brush-polished using the one-side end projection brush part 7.