Abstract: The invention relates to a reciprocating type electric shaver comprising blade heads including a slit blade, a slit inner blade, web blades, a web outer blade, a slit outer blade, a web inner blade for cutting the beard introduced from perforations of said web outer blade with said web outer blade, said web inner blade being slidable connected to the inner surface of said web outer blade and reciprocating, wherein said slit outer blade has on the planar upper surface having slits therein, a flat portion substantially parallel to the axis where the peaks of the adjacent web blades are aligned in a line, said slit inner blade being slidable inside the flat portion, said slit outer blade having a blade edge projecting outward at the web blade side beyond the side walls of said slit outer blade, with said blade edge located at side edges along the reciprocating direction of said slit inner blade on the flat portion, and the blade edge is formed on the upper surface with a tapered face successive to the flat porti

Abstract: A dry shaver includes a perforated outer shearing foil and an inner cutter. The outer shearing foil has a first axis along which it is arcuately curved. The inner cutter has a longitudinal axis along which it is arcuately curved to have an arcuate contour in conformity with the outer shearing foil and is driven to reciprocate in hair shearing engagement with the outer shearing foil. The inner cutter comprises a plurality of inner blades which are spaced along the longitudinal axis in parallel relation to each other, each of the blades having opposed first and second faces each defining a cutting edge at its upper end so that the individual cutting edges are cooperative to define the arcuate contour. Each inner blade, which is offset from a longitudinal center of the inner cutter, is formed with a first face directing outwardly in the offset direction with an undercut immediately adjacent to the cutting edge. The undercut cooperates with the adjacent cutting edge to give an first rake angle .beta.