| 摘要 |
PROBLEM TO BE SOLVED: To obtain an inner and an outer blade which have no burrs nor breaking at their edges and then obtain a good shaving characteristic by using an iron-based alloy which is constituted of an Fe-Cr stainless steel basic material of a specified Vickers hardness and a hard layer. SOLUTION: An electric razor comprises an outer blade 10 supported by a cutting head and a plurality of inner blades installed on a supporting body. The outer blade 10 is a sheet which has a plurality of openings 11. Around the openings 11, there are rims 12 which were formed by punching of the sheet and which bend downwards. In this case, the outer blade 10 and the inner blades 11 are formed by using iron-based allays which are constituted of Fe-Cr stainless steel basic materials 15, 25 of a Vickers hardness 400 or above and hard layers 16, 26 which are formed on the surfaces of the basic materials and which have a Vickers hardness 700 or above and are 2-15μm in thickness. Edge angles of cutting edges 14, 24 of the blades 10, 11 are set to 35-90 degrees.
|
