| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable smoke extraction device which is lightweight, compact and easy to carry, and has high blowing efficiency into a fire section. <P>SOLUTION: The portable smoke extraction device 1 mainly comprises a jetting nozzle group 5 comprising a plurality of jetting nozzles 5a for jetting compressed air and a nozzle arrangement member 6 where the jetting nozzle group 5 is arranged. The nozzle arrangement member 6 is formed of a pipe material so as to supply the compressed air to each of the jetting nozzles 5a, and the plurality of jetting nozzles 5a are arranged at a prescribed interval to respective horizontal pipe parts 6b. A contour line A connecting the respective centers of the plurality of jetting nozzles 5a positioned on the outer edge side of the jetting nozzle group 5 forms a rectangular shape suited to the shape of an opening 2a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
