PROBLEM TO BE SOLVED: To sharpen a cutter along a curve line of a tip thereof without requirement of professional skill.;SOLUTION: A cutter blade sharpener 1 comprises: a support plate 2 on which a tip KP of a cutter is so loaded as to be laid down; a base part 3 on which the support plate 2 is so located as to be inclined; a tip pressing part 4 which is provided above the base part 3, and presses and fixes the tip KP to the support plate 2 from above; a grindstone attachment part 5 for attachment of a grindstone GS which grinds an upper side face of the tip KP; an upright plate-like rail part 6 which so guides the grindstone attachment part 5 as to be curvedly slidable in a longer direction of the tip KP along a curve of the tip KP; and an inclination angle adjustment part 7 which adjusts an inclination angle of the support plate 2. A curving degree of the rail part 6 in a longer direction is substantially same as a curving degree of the tip KP.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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