Abstract: In the register 1 of the embodiment, in case that all of the front side fins 41 are rotated to the upward direction, air flowing toward the air outlet 21 (air flow direction X) of the bezel 2 in the air flow path 3A of the retainer 3 is blown out from the air outlet 21 of the bezel 2 and the blowout direction is changed to Y1. At that time, air flow separating from the concave surface existing on the lower surface of the front side fin 41 approaches to air flow along the concave surface existing on the upper surface of the front side fin 41 positioned at a lower position than that of the above front side fin 41, and separates from the fixed fin 22. Thereby, air with superior directivity to the upper direction can be obtained.

Abstract: In the register 1 of the embodiment, in case that all of the front side fins 41 are rotated to the upward direction, air flowing toward the air outlet 21 (air flow direction X) of the bezel 2 in the air flow path 3A of the retainer 3 is blown out from the air outlet 21 of the bezel 2 and the blowout direction is changed to Y1. At that time, air flow separating from the concave surface existing on the lower surface of the front side fin 41 approaches to air flow along the concave surface existing on the upper surface of the front side fin 41 positioned at a lower position than that of the above front side fin 41, and separates from the fixed fin 22. Thereby, air with superior directivity to the upper direction can be obtained.