| 摘要 |
PROBLEM TO BE SOLVED: To prevent water from entering into a chuck of a rotary device to prevent corrosion in the chuck.SOLUTION: A rotary device includes a chuck 27 provided in a tip of a rotary output shaft, and has a structure in which a rotation center shaft of a rotated member 29 is held by the chuck 27. The chuck 27 is covered with a waterproof cover 50 having a shaft hole 52h through which the rotation center shaft of the rotated member 29 is put in a watertight manner. |
