INNER CUTTING-EDGE FOR ROTARY TYPE ELECTRIC SHAVER AND PRODUCTION THEREOF

摘要

PURPOSE:To improve the productivity of the above edge and to reduce the production cost by introducing a structure wherein numbers of disklike minor edges are integrally stacked in the shape of a cylinder. CONSTITUTION:A cylindrical inner edge having cutting-edges 2 continuous in ranging from one end to the other end can be obtained after going through a process wherein disklike minor edge 1 having a plurality of a small cutting- edges 2a at the periphery thereof is formed, and another process wherein numbers of minor edges 1 are integrally stacked so that the small cutting-edges 2a are overlapped each other. In this way, the minor edges 1 can be mass-produced by pressing or by etching, and the amount of production of the inner edges per an hour can sharply increased.