| 摘要 |
A blade drive device of embodiment 1 has a blade (30), a drive source that drives the blade (30), and an upper case (10) and a lower case (20) that have openings (11, 21) opened and closed through drive of the blade (30) and receive the blade (30) and the drive source. The drive source includes a rotatably supported rotor (40) and iron pieces (50, 60L, 60R) around which exciting coils (70L, 70R) are wound and that apply rotational force to the rotor (40). The iron pieces (50, 60L, 60R) are shaped to fit along the inner peripheral surfaces of the upper and lower cases (10, 20).
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