| 摘要 |
PROBLEM TO BE SOLVED: To control the blow amount and flow rate of air corresponding to the height of a working room opening by providing a movable air curtain blowout port in a panel which opens/closes the working room opening from the outside for avoiding inconveniences existing in a conventional type of air curtain attached hood. SOLUTION: This hood comprises the double-structure panel for opening/closing the working room opening from the outside, the panel having a lower edge wholly serving as the air curtain blowout port of the air curtain which interrupts the inside of a working room from outside air. The air curtain blowout port is moved corresponding to the area of the working room opening. A movable push or push/pull air flow is provided on a working opening face where the blow amount and flow rate of air are controlled. COPYRIGHT: (C)2007,JPO&INPIT
|
