| 摘要 |
PURPOSE:To prevent a small object from falling down to a cold air blow-out port and to widely and effectively use the upper surface of a desk board by forming the back board of an air direction change board, which is provided in the opening part of the cold air blow-out port freely turnably, in a plate shape and forming the same surface when the opening part is closed. CONSTITUTION:An air direction change board 5 is provided freely turnably in a cold air blow-out port 3 and a back surface 6 of the air direction change board 5 is formed in the plate shape. Then, when the cold air blow-out port 3 is closed, the back board 6 forms the same surface with the upper surface of the desk board 6. When a cold air unit is electrified in a condition that the air direction change board 5 is turned and the cold air blow-out port 3 is opened, cold air is sent to the cold air blow-out port 3 and the direction of air feeding is changed by the air direction change board 5. Then, the cold air is sent in the upper direction of a desk board 4. Next, in the case that the cold air unit 2 is not operated, when the air direction change board 5 is turned forward and the cold air blow-out port 3 is closed, the same surface is formed with the desk board 4 since the back board 6 of the air direction change board 5 is formed in the plate shape. Then, unevenness is eliminated on the upper surface of the desk board 4 and the upper surface can be widely used. |
