Patent ID: 7862850

Claim:
A coating method for coating a surface of an object, comprising: dividing said coating surface into a plural number of coating areas; sequentially shifting positions of a first set of turning paths for reciprocation of at least one sprayer unit in one of two directions of said reciprocation and coating a specific area of said divided coating areas, while forming a coating trajectory of said turning paths like a series of steps such that each successive one of the turning paths of the at least one sprayer unit along one edge of the specific coating area extends further in a first direction than each previous one of the turning paths along the one edge of the specific coating area; and sequentially shifting positions of a second set of turning paths, which are adjacent to and face the first set of turning paths, for reciprocation of said at least one sprayer unit in said one direction to avoid overlapping with said first set of turning paths in said specific coating area and coating a different coating area which is adjacent to said specific coating area while forming a coating trajectory of said second set of turning paths like a series of steps such that each successive one of the second set of turning paths along one edge of the different coating area, adjacent to the one edge of the specific coating area extends less in a second direction opposite to the first direction than each previous one of the second set of turning paths along the one edge of the different coating area to completely coat the object between the one edge of the specific coating area and the one edge of the different coating area by the coating the specific area and the coating the different coating area.