Electric hair cutter

An electric hair cutter comprising:

• an electric motor including an output shaft;
• a motion conversion mechanism that converts rotary motion of the output shaft into reciprocating linear motion;
• a movable blade driven by the reciprocating linear motion transmitted from the motion conversion mechanism;
• and
• a case that accommodates the electric motor and the motion conversion mechanism, wherein
• the motion conversion mechanism includes a first conversion portion, a second conversion portion, and an output portion,
• the first conversion portion converts the rotary motion of the output shaft into reciprocating rotary motion about a first axis, wherein the first axis intersects with an axis of the output shaft,
• the second conversion portion converts the reciprocating rotary motion into the reciprocating linear motion,
• the output portion couples the second conversion portion to the movable blade so that the movable blade performs the reciprocating linear motion,
• the first conversion portion includes an eccentric rotation part, which is coupled to the output shaft so as to eccentrically rotate, and an input conversion part, which is coupled to the eccentric rotation part and reciprocatively rotated about the first axis,
• the second conversion portion includes a motion transmission part, which is coupled to the input conversion part and to which the reciprocating rotary motion is transmitted, and an elastic deformation part, which restricts motion of the motion transmission part so that the motion transmission part performs the reciprocating linear motion.