Manufacturing method of arc-type nail-cutting blade body, nail-cutting blade body by this, and nail-cutting device

摘要

The present invention relates to a method of manufacturing arc type blades for a nail clipper, which corresponds to a curved surface of a finger nail, arc type blades and a nail clipper manufactured by the same. The method of manufacturing arc type blades for an nail clipper, comprises: forming a top blade and a bottom blade forming a blade body, so as to incline at a same inclination angle, so that one end of the top blade is connected to one end of the bottom blade; forming an inner surface of a downward incline of the top blade so as to be inward curved in an arc shape which has a predetermined curvature and is extended along the downward incline, and forming an end of the top blade so as to be a vertical plane for forming an edge; forming an inner surface of an upward incline of the bottom blade so as to be outward curved in an arc shape which has the same curvature as that of the arc shape in the top blade and which is extended along the upward incline, and an end of the bottom blade so as to be a vertical plane for forming an edge; allowing the two ends of the top and bottom blades to be in contact with each other and grinding the two ends simultaneously in the vertical plane, to form the edge which is inward curved in the arc shape at the end of the top blade and the edge which is outward curved in the arc shape at the end of the bottom blade, thereby forming the arc type nail clipper in which the curves of the concave and convex arc type edges are accurately in contact with each other.