| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an insect repellent distributor transferring and distributing a high concentration insect repellant-containing gas as it is, at places effective for insect repelling to increase an insect repelling effect, and capable of exerting the insect repelling effect with an air curtain without giving uncomfortable feeling, and to provide an insect proof air curtain device using the distributor. <P>SOLUTION: Volutes 5 of a high density insect repellant-containing gas are ejected from an insect repellant distributor 1 mounted on an air curtain device 22 and from a position of the outer side than an air curtain 24 to the outside against a port opening 21, the volutes 5 proceed as they are and then collapse, the high concentration insect repellant-containing gas starts to diffuse, the insects act avoidance behavior to the diffused insect repellant-containing gas or die, so insects themselves flying to the port opening 21 through the insect repellant-containing gas diffusing zone decrease, and even if there are insects going to the port opening 21, they are weakened with the insect repellant-containing gas on the way, and prevented with an air curtain 24 of less than 4 m/s wind velocity, and thus no insects intrude in a building 20 from the port opening 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
