| 摘要 |
<p>This shutter device is provided with: a shutter curtain which closes an opening in a building and comprises a fixed blade which has an opening, and a movable blade which is linked so as to overlap the fixed blade and which can move between a first position, in which the opening of the fixed blade is closed, and a second position, in which the opening of the fixed blade is opened; and a control unit which has a first mode in which, with the movable blade in a state in the first position, sets the shutter curtain to a completely closed state, in which the opening in the building is closed, and a second mode in which, from the completely closed state, the movable blade is moved away from the fixed blade such that the movable blade is in the second position.</p> |
