| 摘要 |
[Problems to be Solved] The object is to form incisions with improved uniform depth and shape in a coating film formed on an object having a curved surface with a plurality of curvatures or a free-form curved surface. [Means to Solve the Problems] A cutting tool 100 having a plurality of blades, includes: a plurality of shaft parts 31 and 32 having blades 50 at respective one ends and projections 33 and 34 at other positions; a shaft-receiving part 40 having cylindrical parts 41 and 42 fitting to portions of the shaft parts 31 and 32; a guide part 20 having receiving parts 21 for the projections 33 and 34 extending in one direction; and stretchable elastic bodies 60 positioned between the blades 50 and the shaft-receiving part 40, wherein the projections 33 and 34 are movably fitted to the respective receiving parts 21. An excessive force coming from a coating surface is dispersed by stretches of the elastic bodies 60, and the projections 33 and 34 are moved within the respective receiving parts 21 such as slits, thus restricting lateral displacement of the blades. |
