| 摘要 |
PURPOSE:To obtain a comfortable space cooling and heating effect having no uneven temperature by swinging third and fourth air direction changing plates of lower air blow-off ports provided on four sides of a lower surface panel in synchronism with first and second air direction changing plates thereof. CONSTITUTION:When a space cooling or heating operation is started, a main gear 25 is rotated in a direction shown by an arrow, and driven gears 26a and 26b are rotated in directions shown by arrows. Long holes 28a and 28b are fitted in pins 27a and 27b provided on these driven gears by deviating 180 deg., and arms 30a and 30b are swung around fulcrums 29a and 29b. Holes 32a and 32b of cams 33a and 33b are fitted in the tip ends 31a and 31b of these arms to swing the first and second air flow direction changing plates 4a and 4b in the directions shown by arrows. Upon this occasion, third and fourth air direction changing plates 4c and 4d swing in synchronism with first and second air flow direction changing plates 4a and 4b by interlocking means 22 and 23. Thus, the blow-off direction is continuously changed. |
