| 摘要 |
PROBLEM TO BE SOLVED: To obtain structure capable of varying or decreasing the degree of exhaust in a specific direction, without biasing an exhausting direction, as the structure of the air outlet of an exhaust device. SOLUTION: The air outlet part 1a of an exhaust duct 1 is attached in a nearly contact state with the inside of an outer case cover 2. In this outer case cover 2, plural slit holes 3 whose outside edges have almost the same size as the air outlet part 1a are annularly made. The inside part 4 of the slit hole 3 is formed to a conical shape, to be projected into the air outlet part 1a. An air flow B made by a ventilation fan 5 is deviated to the outside in direction by the conical shape of the inside part 4 and discharged from the slit hole 3, while being diffused. |
