| 摘要 |
An electric rotary shaver including an outer cutter 14, in which a ring-shap ed groove 26 is formed in the top portion and two ring-shaped inner cutter running tracks 34 are formed in the interior surface, and an inner cutter 16, in which a plurality of cutter blades 40 are provided that make sliding contact with the inner cutter running tracks 34 o f the outer cutter 14. A sliding surface where the cutter blades of the inner cutter make a sliding contact with the inner cutter running track of the outer cutter is set on a plane C perpendicular to the center axis line (A), and the thickness of the top portion of the outer cutter 14 i s such that the portions alongside the ring-shaped groove 26 are made thinner or thicker tha n the other part of the top portion on at least a part of the circumference.
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