| 摘要 |
PROBLEM TO BE SOLVED: To reduce parts count and weight and to simplify assembly. SOLUTION: This shutter driving device is provided with a motor 1, a motor decelerating mechanism 2 mounted on the output shaft 1a of the motor 1 to decelerate the rotating force of the motor 1, and a drum 11 fitted over the motor decelerating mechanism 2. Here, the drum 11 is rotated by the rotation of the decelerating mechanism 2 itself which is simultaneously rotated with the motor 1 to take up and rewind a shutter.
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