ROTARY ELECTRIC SHAVER AND METHOD OF MANUFACTURING INNER BLADE OF ROTARY ELECTRIC SHAVER

摘要

A rotary electric shaver (1) according to the present invention includes an outer blade (22) whose upper surface (22a) functions as annular shaving surfaces (22A and 22B) having multiple hair inlets (23) formed therein, and an inner blade (40) that has a small blade (42) which rotates while coming into sliding contact with a lower surface (22b) of the outer blade (22). The inner blade (40) is an integral structure using a metal material, and has a projection (44) in which an upper surface side is a convex portion (44a) and a lower surface side is a concave portion (44b) at a center position in a radial direction. An upper end portion (12a) of an inner blade drive shaft (12) directly engages with the concave portion (44b) so as to be disengageable therefrom.