Abstract: Outer surfaces of aluminum members are provided with a welding line extending from a first end to a second end, and a preliminary line extending from a third end to a fourth end. The fourth end of the preliminary line is connected to the first end of the welding line. Arc welding along the preliminary line and the arc welding along the welding line are consecutively performed. An angle formed by a straight line extending from the fourth end toward the third end in a preliminary line direction, and a straight line extending from the first end toward the second end in a welding line direction is an obtuse angle.

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.

Abstract: A defrosting performance identical to that in a conventional front defroster nozzle device is exhibited by a simpler structure even in the case of decreasing the overall length of a front defroster nozzle device in the direction of vehicle width. A current of air from a front blow-opening formed on the same side as a windshield is mainly sent to the left and right end portions of the windshield and a current of air from a rear blow-opening adjacent to the front blow-opening and formed further inside the vehicle interior than the front blow-opening is mainly sent to the central portion of the windshield. Accordingly, currents of air are inhibited from interfering with each other.