| 摘要 |
PROBLEM TO BE SOLVED: To provide an air curtain device which surely blocks intrusion of foreign matter such as an insect by solving a problem where in a conventional air curtain device, the air flow blown out of an outlet port is not always entirely absorbed by an inlet port, another air flow leaked from the air flow is produced, an air flow intruding from the interior or the exterior is produced as well, and in that case, the foreign matters such as an insect intrudes in the interior along with the intruding air flow. SOLUTION: This air curtain device 1 is installed in a doorway of the interior 10. The device 1 is installed at a door for isolating a ceiling 3, a floor surface 4, wall surfaces 5, 5 and an interior doorway, or at a doorway to the outside, comprises an air curtain air flow outlet port for blowing out the air introduced from the outside as an air curtain air flow, and is characterized by keeping the inside of the air curtain device at positive pressure by the blown-out air curtain air flow. COPYRIGHT: (C)2004,JPO
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