ONE WAY ROTATION DAMPER

摘要

Provided is a one-way rotation damper capable of providing, when a door rotates in one direction, resistance larger than resistance generated when the door rotates in the other direction. The one-way rotation damper comprises: a housing having fluid therein; a shaft coupled to the housing to be able to rotate; a stopper provided between the housing and the shaft to prevent the fluid from being circulated; a first block provided between the housing and the shaft to be able to rotate with respect to the shaft and having a first opening through which fluid flows; a second block provided between the housing and the shaft to be able to rotate with respect to the shaft and having a second opening through which a fluid flows; and a third block coupled to the shaft, positioned between the first block and the second block to be adjacent to the first block or the second block in accordance with the rotation direction of the shaft, and having a third opening through which the fluid flows. The size of the first flow opening formed when the first opening and the third opening are adjacent is smaller than the size of the second flow opening formed when the second opening and the third opening are adjacent.