| 摘要 |
A rotary electric shaver (1) includes a gear case (50) arranged inside a head unit (3), a lower gear (52) arranged in a lower portion of the gear case (50), coaxially having an outer blade gear (52A) for driving an outer blade (22) and an inner blade gear (52B) for driving an inner blade (42), an upper gear (58) arranged in an upper portion of the gear case (50) to drive the outer blade (22), and a transmission gear (60) having an input gear (60A) arranged in the lower portion of the gear case (50) and to which driving power is input from the lower gear (52), and an output gear (60B) arranged in the upper portion of the gear case (50) to drive the upper gear (58), in which the input gear (60A) and the output gear (60B) are coaxial and a rotary shaft vertically penetrates the gear case (50). The driving power from the upper gear (58) drives an outer blade drive gear (74) for driving the outer blade (22). |
