| 摘要 |
PROBLEM TO BE SOLVED: To simplify the inspection of a transmission mechanism between a motor and an inner blade, component exchange and the replenishment of an oil lubricant, or the like, and to efficiently perform maintenance work, or the like, in a service department for users in a rotary type electric razor. SOLUTION: A head frame 8 is constituted of a base 12 on which a motor 4 is mounted and a pair of left and right side frames 14 and 15 erected from both sides of the upper surface of the base 12. The transmission mechanism for transmitting the rotary driving power of the motor 4 to the inner blade 18 supported by both side frames 14 and 15 is arranged from the upper part of the base 12 to the inside of one side frame 15 in a hollow frame shape. The transmission mechanism is provided with an output gear 20 fixed to the output shaft of the motor 4, a gear train 23 arranged inside the side frame 14 and an input gear 21 provided between the output gear 20 and the gear train 23. The outer surfaces of the output gear 20 exposed to the upper surface of the base 12 and the input gear 21 are tightly covered with a head cover 25 bisected to the front and back. The head cover 25 is tightened and fixed to the head frame 8 so as to be disassemblable.
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