| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a shutter apparatus having high airtightness when closing while reducing draft resistance.SOLUTION: A shutter apparatus comprises: a cylindrical shutter support frame 3; and a plurality of substantially flat-plate shaped shutters 2a and 2b rotatably attached to the shutter support frame 3, in which the shutter support frame 3 is provided with a plurality of openings to which the plurality of shutters 2a and 2b divided with partition plates 3b are respectively attached; and when one end part 5 of at least one of the plurality of shutters 2a and 2b comes in contact with the partition plate 3b, an air channel of the shutter support frame 3 is closed to become a closed state.</p> |
