WIND DIRECTION ADJUSTMENT DEVICE

Wind direction adjustment device () includes cylindrical case body () having flow path () therein, and valve () that is movably disposed in case body () and that opens and closes flow path (). Valve () includes base material () supported by case body (). Valve () is formed of a member that is softer than base material (), and includes soft portion () capable of elastically contacting case body () in a state in which flow path () is closed by valve (). Valve includes deformation suppressing portions () that suppresses deformation of soft portion () caused by contact of soft portion () with case body (). Deformation suppressing portions () are disposed at positions at which deformation suppressing portions () are not in contact with case body () in a state in which flow path () is closed by valve ().