| 摘要 |
PURPOSE:To increase the wind amount with the noise held low, by forming a bent wall, constructed at a louder frame, partially with its backmost portion in the form of a movable wall so as to be retractable from the air blowout line toward a bent case, and thereby refraining from narrowing the air blowout line. CONSTITUTION:When a bent louver 10 is intruded in a bent case 3, that portion of bent wall 13 which is formed as in a movable wall 13b is retracted to open toward the side wall of the bent case 3 by the pressing force applied by a spring 14 toward the bent case 3 to cause enlargement of the width W1 of the blowout line. Accordingly the wind amount is increased while generation of wind noise suppressed because of prevention of block of outblown air at the movable wall 13b. |
