| 摘要 |
Disclosed is a damper unit. According to an embodiment of the present invention, the damper unit comprises: a cylindrical damper body having a first opening and a second opening, which are connected to an internal passage to oppose each other in the internal space and on the outer peripheral surface; a rotary shaft installed through the damper body, wherein both ends of the rotary shaft are exposed through the first and the second opening; a blade installed at the rotary shaft; a first cap mounted on the outer peripheral surface of the damper body, covers the first opening, and rotationally supports one end of the rotary shaft; and a second cap which is mounted on an outer peripheral surface of the damper body, covers the second opening, and rotationally supports the other end of the rotary shaft, wherein the first opening may be longer than the blade to allow the blade to be taken in and out. |
