Patent ID: 8726516
Filing Date: 2014-05-20
Classification: A45D

Abstract:
1. A method for manufacturing a blade body of a nail clipper wherein a 3-dimensional inclined curve-type blade is formed on respective inclined surfaces of upper and lower blade bodies facing each other, comprising steps of: forming an inclined curve with a curvature Ra using a boundary line which is formed when the periphery of grinding media with a radius Rg located in an upright position is merged with an upper inclined surface having a predetermined angle θ1 with respect to a vertical line; forming a shape of a lower inclined surface by consecutively extending the inclined curve downward at an angle θ2 corresponding to the predetermined inclination angle θ1 of the upper inclined surface to make a trajectory for forming a surface which constitutes the lower inclined surface; forming blade bodies by constructing the shape of the upper and lower inclined surfaces obtained in the steps above to be inclined surfaces inside the upper and lower blade bodies of the nail clipper; and grinding the ends of the upper and lower inclined surfaces simultaneously by the grinding media with the radius Rg while maintaining the axis of the grinding media perpendicular to the axis of the upper and lower blade bodies, whereby forming upper and lower inclined curve-type blades having the inclined curve with the curvature Ra, respectively.