Patent attributes
A wind direction adjuster enabling an operation of a louver with a stable operation load and providing an excellent operation feeling is provided. An axial support body is axially supported to a cylindrical case body turnably so as to have an axis along a direction crossing an axial direction of the case body. A louver is axially supported to the axial support body turnably so as to have an axis along a direction crossing the axis of the axial support body. A ball unit is set in any one of the case body and the louver as a load setting unit that sets a turning load of the louver. A receiving unit that slidably receives the ball unit is set in the other one of the case body and the louver. A coil spring urges one of the ball unit and the receiving unit to be pressed against the other.